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1.                                                                                      nn                                                                                                                                                                                                                                                                         Figure 36  Removing the heat sink and fan assembly    Lift the failing heat sink and fan assembly off the system board     Notes   a  You might have to gently twist the heat sink and fan assembly to free it from the microprocessor     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  103    b  When handling the heat sink and fan assembly  do not touch the thermal grease on the bottom  of the heat sink and fan assembly     8  Place the new heat sink and fan assembly on the system board so that the four screws are aligned with  the corresponding holes in the system board   Note  Position the new heat sink and fan assembly so that the heat sink and fan assembly cable       toward the microprocessor fan connector on the system board     9  Follow the following sequence to install the four screws to secure the new heat sink and fan assembly   Do not over tighten the screws     a  Partially tighten screw El then fully tighten screw        then fully tighten screw  b  Partially tighten screw EE then fully tighten screw        then fully tighten screw   10  Connect the new heat sink and fan assembly cable to the microprocessor fan 
2.                                  2   gt        Figure 123  Reinstalling the computer cover      If there is a padlock available  lock the computer cover     7  If there is a Kensington style cable lock available  lock the computer     8  Reconnect the external cables and power cords to the computer  See    Locating connectors on the    9     rear of your computer    on page 75   To update your configuration  refer to Chapter 6    Using the Setup Utility program    on page 55     Note  In most areas of the world  Lenovo requires the return of the defective Field Replaceable Units  FRUS    Information about this will come with the new FRUS or will come a few days after you receive the new FRUs     174  ThinkCentre E73 Hardware Maintenance Manual    Obtaining device drivers    You can obtain device drivers for operating systems that are not preinstalled at  http   www lenovo com support  Installation instructions are provided in readme files with the device driver    files     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  175    176  ThinkCentre E73 Hardware Maintenance Manual    Chapter 11  Additional service information    This chapter provides additional information that the service representative might find helpful        Security features  Security features in this section include the following     e Passwords  e Vital Product Data    Hardware controlled passwords   Use the Setup Utility program to set the hardware controlled passwords  For more inf
3.                  AA            ER  gt            BE 49 ERA A ETE     EA E      DATE RAR     gt  MILK  FEE UE MECA S  PIS EUR ER GE HE           E RUE  gt    i A REINE     ch  amp  TAH i  RAMS HER   2 REKS KR AL EAR EE          3  RIPARA a PARAR TREMER EMBAR  gt  HABRA ER  gt  BE KH   IAE BAR E oo LIH REAR ES EZ EA      HSE BRR o          rie ex       1  BA FA AT BARA  gt           2 85  RAA ERRE     SARA e   A BIE MBSE  gt   5  HERE    1  BORGATA BARA  gt   2 85         Eu  ERR o  3  IRIRA E JI SR    ARR ELMAR             14  ThinkCentre E73 Hardware Maintenance Manual       A          PE EUR  AA AR 4501566     5 35 91 2      I  Ewe   Y FABRA 208 BEER o 33 E48 08 15      RE PTE ABRA EIA            RES ESTA PANDER       sE         xxm pa          ERRAK P     Ex 100 C  212  F  u LH SER   EIA   SERRA MALES MERECE ATTE RARA           A    PM                                 PRADA RR DABA  RENA B ATI  ISTE  gt    4A RAAT IEA GUT PERS RANA  gt  AA AT  gt  TAE RAI       bd    HERA Nd Class       amp  Class      EH        EET 7  SA              QUEE DAA 287  ELUUCOR AUR APRES BARA  IRRADIA ERA 5    8       375       70 51    gt  55       12125         gt  4    ut   5 of  s  B            hy    AA    2   ELA ERE        CRISI CRM AMAR AA E ED  DRETEASATRR  FERRER EROINA TA    CDN    TAM TIA      AA    2     mp          10      AA    Su    Chapter 2  Safety information 15    DANGER    Le courant   lectrique provenant de l alimentation  du t  l  phone et des c  bles de transmission peut pr
4.            mann dx      1P99N AX MPNN PX       pe  mpnn mpinm               95 ym   n    0n      IDUN    20  ThinkCentre E73 Hardware Maintenance Manual    man         NINN 29 yw  naty IN    voir 20          DVD  mamu    pn  m   122  A         mpnn nya    DION ar   n  ap5              DIA Ay WIN asim DW pnmo   n mon  nmo  n NX WON IN    Jpnnn Na 290 ma OPIN PR                    AM pI ANWNI mna   mo    y      DYININAN NINN MANX 07979 yea mp2 YN Y                1220     nxan              25 ww    Class      1x Class      non 2792 NANT n  n DINMON ar   win    PUDIN TY NAVA Ten WAN ON                            5x AI nmp 0519 AINA    MIND NIN           Np  ne wnn nymm           25 37       18S  272 70 5  a p 32 lt   9 121 2 a p 55  lt     DINT   Dna wnanwn  nya              TP  n nnn             APND               MEYN nar      MON DMX 2nnn        2                 anm  pnnn  gt  n  ysnn                            Dam 55 nx            TD  TNX DAWN        ANY 212292        1pnnn  3013   2nnn mpnn mpnun   nunn dad Dw wm    AA    2  7          1     mp           Chapter 2  Safety information 21    AA    PERICOLO    La corrente elettrica proveniente dai cavi di alimentazione  del telefono e di comunicazione        essere  pericolosa     Per evitare il rischio di scosse elettriche     e Non collegare o scollegare qualsiasi cavo oppure effettuare l installazione  la manutenzione o la  riconfigurazione del prodotto durante un temporale       Collegare tutti i fili elettrici a una pres
5.         A    h         cas Class        Class           Ga ada            340    Je ll                     o gia  A qm      ja          bgal cg  Alaa ga 5                   y Ela ll sai Y            0      dall    Ela              a Grind y                    gt 18 kg  37 lbs   gt 32 kg  70 5 lbs   gt 55 kg  121 2 lbs       4ni  gli      dial ls        aldol casa    AA    1 440          He asa gal cuia              Sigal IE aga gal              asail 2             dal 9 silos dll Ga 261      sS      gally        ily gS       c  lido          da y                              Dil ques Jue cpa                uia            CN    AA    2  gt  gt   1  i  mp        AA    PERIGO    A corrente el  trica proveniente de cabos de alimenta    o  de telefone e de comunica    es    perigosa     10  ThinkCentre E73 Hardware Maintenance Manual    Para evitar risco de choque el  trico     e N  o conecte nem desconecte nenhum cabo ou execute instala    o  manuten    o ou reconfigurac  o  deste produto durante uma tempestade com raios     e Conecte todos os cabos de alimenta    o a tomadas el  tricas corretamente instaladas e aterradas       Todo equipamento que for conectado a este produto deve ser conectado a tomadas corretamente  instaladas        Quando poss  vel  utilize apenas uma das m  os para conectar ou desconectar cabos de sinal     Nunca ligue nenhum equipamento quando houver evid  ncia de fogo    gua ou danos estruturais       Antes de abrir tampas de dispositivos  desconecte cabo
6.         Figure 82  Removing the slim card reader from the bracket    7  Take the new card reader out of the static protective package by its sides     8  Align the new card reader in the slim card reader bracket and slide the card reader into the rail as shown  until it stops  Then  install the two screws to secure the new card reader to the bracket     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  141                         Figure 83  Installing the new slim card reader into the bracket    9  Route the cable of the new card reader through the corresponding hole for the card reader bracket in  the front of the chassis     10  Install the bracket into the chassis so that the hole in the bracket is aligned with the corresponding hole  in the chassis  Then  Install the screw to secure the card reader bracket to the chassis        Figure 84  Installing the slim card reader bracket    11  Connect the cable of the new slim card reader to the system board  See    Locating parts on the  system board    on page 79     What to do next   e To work with another piece of hardware  go to the appropriate section   e To complete the installation or replacement  go to    Completing the parts replacement    on page 174     142  ThinkCentre E73 Hardware Maintenance Manual    Replacing the solid state drive    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section p
7.      The mouse or pointing device does not work  Symptom  The mouse or pointing device does not work     Actions     e Verify that the mouse or pointing device cable is securely attached to the correct connector on the  computer  Depending on the type of mouse you have  the mouse cable will connect to either the  mouse  serial  or USB connector  Some keyboards have integrated USB connectors that can be used  for a USB mouse or pointing device       Verify that the device drivers for the mouse or pointing device are installed correctly        f you are using a USB keyboard or mouse  verify that the USB connectors are enabled in the BIOS  settings  See  Enabling or disabling a device  on page 57     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     The pointer on the screen does not move smoothly with the mouse  Symptom  The pointer on the screen does not move smoothly with the mouse     Action  Erratic movement of the mouse pointer is generally caused by a buildup of dirt  oils  and other  contaminants on the ball inside the mouse  Clean the mouse     The fingerprint reader does not work  Symptom  The fingerprint reader does not work     Action  The following could cause the fingerprint reader not to operate properly      Not enrolling your fingerprint correctly    e Scratching the surface of the reader with a hard  
8.     e    The monitor works when you turn on the computer  but goes blank when you start some application  programs    on page 44    e    The image appears to be flickering    on page 44  e           image is discolored    on page 45    Wrong characters appear on the screen  Symptom  Wrong characters appear on the screen     Action  Have the computer serviced  For details  see    Lenovo Support Web site    on page 32     The monitor works when you turn on the computer  but goes blank after some period  of computer inactivity    Symptom  The monitor works when you turn on the computer  but goes blank after some period of computer  inactivity     Action  The computer is probably set for energy savings with the power management feature  If the  power management feature is enabled  disabling it or changing the settings might solve the problem     If these actions do not correct the problem  run the diagnostic programs  see    Lenovo Solution Center    on  page 53 for instructions   If you need technical assistance  see    Lenovo Support Web site    on page 32     The monitor works when you turn on the computer  but goes blank when you start  some application programs  Symptom  The monitor works when you turn on the computer  but goes blank when you start some    application programs   Actions     e Make sure the monitor signal cable is securely connected to the monitor and the monitor connector on  the computer  A loose cable can cause intermittent problems     e Verify that the n
9.    Appendix A  Notices    Lenovo may not offer the products  services  or features discussed in this document in all countries  Consult  your local Lenovo representative for information on the products and services currently available in your  area  Any reference to a Lenovo product  program  or service is not intended to state or imply that only that  Lenovo product  program  or service may be used  Any functionally equivalent product  program  or service  that does not infringe any Lenovo intellectual property right        be used instead  However  it is the user s  responsibility to evaluate and verify the operation of any other product  program  or service     Lenovo may have patents or pending patent applications covering subject matter described in this  document  The furnishing of this document does not give you any license to these patents  You can send  license inquiries  in writing  to     Lenovo  United States   Inc    1009 Think Place   Building One  Morrisville  NC 27560   U S A    Attention  Lenovo Director of Licensing    LENOVO PROVIDES THIS PUBLICATION    AS IS    WITHOUT WARRANTY OF ANY KIND  EITHER EXPRESS  OR IMPLIED  INCLUDING  BUT NOT LIMITED TO  THE IMPLIED WARRANTIES OF NON INFRINGEMENT   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE  Some jurisdictions do not allow  disclaimer of express or implied warranties in certain transactions  therefore  this statement may not apply  to you     This information could include technical inaccuracies or typo
10.    RETA IR E E AZ AY               o  RARA AER VD RO ERR o     WEISE  EN               TT ea E TO DERE BE    WEAK                  PTE EAA RAR         EFA UE P a ZB es ERE RER     A  PAS RS EHE  PARE            AN    E NUI NE T MANN                    JE LAR OEE                    u                                                                                                                         BEYER        1                 1  EIA a    2  POETA AER BIL 2                  3  FH E HB         3  ARO PREES B   4  Yen         4 MBERE TAT FB   5  FARE                                                                                                                                              Rian  UE o Aa VIEN I BBE  APL AMLIB  VU  REP RR MOAB  A         BE                MERRER    WI      BABA          100   2129           ERRIREN       HR HIS RARO ESRA E          GER CB CO RON  DVD ROM Ez  EEFE DI         wo Ue       WED Poh ate  EI FO           ni HY BE S SOS SO AE  ABE  DESEE D                              ASR CSS ERE TH ll  ERRE  OUPS AY BE SOIA    HIER o    Chapter 2  Safety information    13    f   Es    APO  eL A                3B KDE ME  WE  HFEA ROGA    ATER DAB UJ     EMENTA  WORRIED A  TEA ERES                                                                     gt 18 Tri  37 8                                                              232 Fr  70 5 8  255 Tw  121 2 6    BA   Moe pua nt                   BSR         ATA         AA BIRK TER    2  7       ae    1    
11.    Setting  changing  and deleting a password    To set  change  or delete a password  do the following   1  Start the Setup Utility program  See    Starting the Setup Utility program    on page 55   2  From the Setup Utility program main menu  select Security     3  Depending on the password type  select Set Power On Password  Set Administrator Password  or  Hard Disk Password     4  Follow the instructions on the right side of the screen to set  change  or delete a password     56  ThinkCentre E73 Hardware Maintenance Manual    Note  A password can be any combination of up to 64 alphabetic and numeric characters  For more  information  see    Password considerations    on page 56     Erasing lost or forgotten passwords  clearing CMOS     This section provides instructions on how to erase lost or forgotten passwords  such as a user password     To erase a lost or forgotten password  do the following     1  Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer     2  Remove the computer cover  For machine types 1577  1579  and 1607  see    Removing the computer  cover    on page 82  For machine types 1578  1583  and 1652  see    Removing the computer cover    on  page 126     3  Locate the Clear CMOS  Recovery jumper on the system board  See    Locating parts on the system  board    on page 72     4  Move the jumper from the sta
12.    You can use the preinstalled diagnostic program to diagnose computer problems  if your computer       running the Windows operating system     Notes     1  Your computer is preinstalled with the Lenovo Solution Center program for diagnostic purposes  For  more information about the Lenovo Solution Center program  see    Lenovo Solution Center    on page 53     2  If you are unable to isolate and repair the problem yourself after running the diagnostic program  save  and print the log files created by the diagnostic program  You will need the log files when you speak to a  Lenovo technical support representative     Lenovo Solution Center    The Lenovo Solution Center program enables you to troubleshoot and resolve computer problems  It  combines diagnostic tests  system information collection  security status  and support information  along  with hints and tips for maximum system performance     Notes      The Lenovo Solution Center program can be downloaded from http   www lenovo com diags     e  f you are using other Windows operating system rather than Windows 7 and Windows 8  go to  http   www lenovo com diags for the latest information on diagnostics for your computer     To run the Lenovo Solution Center program  see    Lenovo programs    on page 30     For additional information  refer to the Lenovo Solution Center help system     Note  If you are unable to isolate and repair the problem yourself after running the program  save and print  the log files  You will nee
13.    on page 68     RSA  e    2    Figure 58  Connecting the USB keyboard or mouse    Completing the parts replacement    After completing the installation or replacement for all parts  you need to reinstall the computer cover and  reconnect cables  Depending on the parts you installed or replaced  you might need to confirm the updated  information in the Setup Utility program  Refer to Chapter 6    Using the Setup Utility program    on page 55     To reinstall the computer cover and reconnect cables to your computer  do the following     1  Ensure that all components have been reassembled correctly and that no tools or loose screws are left  inside your computer  See    Locating major FRUs and CRUs    on page 69 for the locations of various  components in your computer     2  Ensure that the cables are routed correctly  Keep cables clear of the hinges and sides of the computer  chassis to avoid interference with closing the computer cover         If you have removed the front bezel  reinstall it  See    Removing and reinstalling the front bezel    on  page 83     122  ThinkCentre E73 Hardware Maintenance Manual    4  Position the computer cover on the chassis so that the rail guides on the bottom of the computer  cover engage the rails on the chassis  Then  push the cover to the front of the computer until it snaps  into position              OO             QA                       WI  SBB                                         ZZZ   N N                           Figure 59  R
14.   Chapter 9  Replacing FRUs  machine types  10AS and 10AU  109    7     10     11     12     13     14     Remove the eight screws that secure the system board                                                                                                                                                                 nn                                                                                                                                                                                                                                                                  a                            Figure 42  Removing the screws that secure the system board      Slide the system board to the front of the computer and then carefully lift the system board out of the    chassis  Place the failing system board on a flat  clean  and static protective surface       Remove the microprocessor from the failing system board and install it on the new system board  See       Replacing the microprocessor    on page 106     Install the new system board into the chassis by aligning the eight screw holes in the new system  board with the corresponding mounting studs on the chassis  Then  install the eight screws to secure  the system board     Install the heat sink and fan assembly and connect the heat sink and fan assembly cable to the new  system board  See    Replacing the heat sink and fan assembly    on page 102     Note  If necessary  apply the appropriate amount of thermal grease o
15.   go to    Completing the parts replacement    on page 174     Replacing the power supply assembly    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the power supply assembly     Although there are no moving parts in your computer after the power cord has been disconnected  the  following warnings are required for your safety and proper Underwriters Laboratories  UL  certification     CAUTION     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  147       Hazardous moving parts  Keep fingers and other body parts away     CAUTION   Never remove the cover on a power supply or any part that has the following label attached        Hazardous voltage  current  and energy levels are present inside any component that has this label  attached  There are no serviceable parts inside these components  If you suspect a problem with  one of these parts  contact a service technician     To replace the power supply assembly  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127   4      Pivot the drive bay assembly upward  Then  pivot the two plastic retaining clips outward to remove  the heat sink fan d
16.   it is suggested that you do not make this change by    pressing N  However  if you do want to change the serial number  press Y  and then type in the serial  number and press Enter       When prompted to change the machine type and model  it is suggested that you do not make this    change by pressing N  However  if you do want to change the machine type and model  press Y  and  then type in the machine type and model and press Enter       Follow the instructions on the screen to complete the update  After the update is completed  remove the    disc from the optical drive     Restart your computer and start the Setup Utility program  See    Starting the Setup Utility program     on page 55     From the Setup Utility program main menu  select Exit  gt  OS Optimized Default  gt  Enabled   Select Yes in the window displayed and press Enter to confirm your selection     Press F10 to save changes and exit the Setup Utility program  See    Exiting the Setup Utility program     on page 59     To update  flash  the BIOS from a disc on other operating systems  do the following     1   2     Turn off your computer     Repeatedly press and release F12 when turning on the computer  When the Startup Device Menu  window opens  release F12       From the Startup Device Menu window  select the desired optical drive as the startup device  Then     insert the disc into this optical drive and press Enter  The update begins       When prompted to change the serial number  it is suggested that 
17.   on page 55   2  From the Setup Utility program main menu  select Devices   3  Depending on the device you want to enable or disable  do one of the following   e Select USB Setup to enable or disable a USB device      Select ATA Drives Setup  gt  SATA Controller to enable or disable a SATA device   4  Select the desired settings and press Enter   5  Press F10 to save and exit the Setup Utility program  See    Exiting the Setup Utility program    on page 59     Chapter 6  Using the Setup Utility program 57       Selecting a startup device    If your computer does not start up from a device such as the disc or hard disk drive as expected  do one of  the following to select the startup device you want     Selecting a temporary startup device    Use this procedure to select a temporary startup device     Note  Not all discs and hard disk drives are bootable   1  Turn off your computer     2  Repeatedly press and release the F12 key when turning on the computer  When the Startup Device  Menu window displays  release the F12 key     3  Select the desired startup device and press Enter  The computer will start up from the device you  selected     Note  Selecting a startup device from the Startup Device Menu window does not permanently change  the startup sequence     Selecting or changing the startup device sequence    To view or permanently change the configured startup device sequence  do the following   1  Start the Setup Utility program  See    Starting the Setup Utility progra
18.   senter  un danger     Pour   viter tout risque de choc   lectrique        Nemanipulez aucun c  ble et n effectuez aucune op  ration d installation  d entretien ou de reconfiguration  de ce produit au cours d un orage       Branchez tous les cordons d alimentation sur un socle de prise de courant correctement c  bl   et mis    la  terre        Branchez sur des socles de prise de courant correctement c  bl  s tout   quipement connect      ce produit     e Lorsque cela est possible  n utilisez qu une seule main pour connecter ou d  connecter les c  bles  d interface       Ne mettez jamais un   quipement sous tension en cas d incendie ou d inondation  ou en pr  sence de  dommages mat  riels     e Avant de retirer les carters de l unit    mettez celle ci hors tension et d  connectez ses cordons  d alimentation  ainsi que les c  bles qui la relient aux r  seaux  aux syst  mes de t  l  communication et aux  modems  sauf instruction contraire mentionn  e dans les proc  dures d installation et de configuration         Lorsque vous installez  que vous d  placez  ou que vous manipulez le pr  sent produit ou des p  riph  riques  qui lui sont raccord  s  reportez vous aux instructions ci dessous pour connecter et d  connecter les  diff  rents cordons     Connexion D  connexion    1  Mettez les unit  s HORS TENSION    Mettez les unit  s HORS TENSION     2  Commencez par brancher tous les cordons sur les   D  branchez les cordons d alimentation des prises   unit  s    D  branchez les c  b
19.  10BF  and 10BG  151    4  Pivot the drive bay assembly upward  Then  pivot the two plastic retaining clips outward to remove  the heat sink fan duct from the failing heat sink and fan assembly        Figure 96  Removing the heat sink fan duct    5  Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system  board  See    Locating parts on the system board    on page 79     152  ThinkCentre E73 Hardware Maintenance Manual    6  Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the    system board   a  Partially remove screw EM then fully remove screw EM and then fully remove screw Ei  b  Partially remove screw EE then fully remove screw          then fully remove screw ER    Note  Carefully remove the four screws from the system board to avoid any possible damage to the  system board  The four screws cannot be removed from the heat sink and fan assembly                                                                                                                                                        nn                                                                                                                                                                                                                                                                            Figure 97  Removing the heat sink and fan assembly      Lift the failing heat sink and fan assembly off the system board     Note
20.  9  Replacing FRUs  machine types  10AS and 10AU  85    3  At the rear of the computer  remove the screw that secures the PCI Express card latch        60                   ERA                       Figure 14  Removing the screw that secures the PCI Express card latch    4  Depending on whether you are installing or replacing a PCI Express card  do one of the following     e If you are installing a PCI Express card  remove the appropriate metal slot cover     86  ThinkCentre E73 Hardware Maintenance Manual    e  f you are replacing an old PCI Express card  grasp the old card that is currently installed and gently  pull it out of the slot                                                    Figure 15  Removing a PCI Express             Notes     a         card fits tightly into the card slot  If necessary  alternate moving each side of the card a small  amount until it is removed from the card slot     b  If the card is held in place by    retaining latch  press the card retaining latch      shown to  disengage the latch  Grasp the card and gently pull it out of the slot        5  Remove the new PCI Express card from its static protective package     6  Install the new PCI Express card into the appropriate slot on the system board  See  Locating parts on  the system board  on page 72     Note  If you are installing a PCI Express x16 graphics card  ensure that the memory slot retaining clips  are closed before you install the graphics card     Chapter 9  Replacing FRUs  machine t
21.  Windows help system for more  information     If these actions do not correct the problem  run the diagnostic programs  see    Lenovo Solution Center    on  page 53 for instructions   If you need technical assistance  see    Lenovo Support Web site    on page 32     An audio disc or AutoPlay enabled disc does not automatically play when it is  inserted into a drive    Symptom  An audio disc or AutoPlay enabled disc does not automatically play when it is inserted into a drive  Action  See    CD problems    on page 39     Sound comes from one external speaker only  Symptom  Sound comes from one external speaker only     Actions      Ensure that the speaker cable is inserted completely into the connector on the computer      Make sure the cable that attaches the left speaker to the right speaker is securely connected        Double click the speaker icon in the Windows notification area  A master volume control window opens   Verify that the Balance settings are set correctly     If these actions do not correct the problem  you might have a failing speaker  Have the speaker serviced  If  you need technical assistance  see    Lenovo Support Web site    on page 32     No audio in DOS applications or games  Symptom  No audio in DOS applications or games    Actions        Make sure the DOS application or game is configured to use SoundBlaster Pro or SoundBlaster  emulation  Refer to the documentation that comes with the application or game for instructions on  setting sound card set
22.  access panel that is typically secured by more than two screws  Once the access panel is removed  the  specific CRU is visible      Number  FRU description   Self service GRU__  Optionat serice GRU    DO  meses   w   w    DE  ice   Ne        BH  emo mes   m   ne      Ej                   varane n some model    vws   Ne      B   Front Wi Fi antenna  available in some models    o w   ves    DO mms Tm  om       RI  Foniaudio and US assemby   no   es  DO  emesso   nm                              Wi Fi adapter card  available in some models      Wi Fi          module  available in some models  NEC AE    Rear Wi Fi antenna  available in some models     Peripheral Component Interconnect  PCI  Express  card  available in some models     Keyboard    Looking up FRU information    For detailed FRU information  such as the FRU part numbers and supported computer models  go to   http   www lenovo com serviceparts lookup       78  ThinkCentre E73 Hardware Maintenance Manual    Locating parts on the system board    Figure 9    System board part locations    on page 79 shows the locations of the parts on the system board                                            nn                                                                                                       non                                                                                                                                                                ji  T                                                        BE B
23.  and changing settings 55    W    Wi Fi units  Wi Fi adapter card  Wi Fi card module  Wi Fi  antenna cable  replacing 165   Wi Fi units  Wi Fi adapter card  Wi Fi card module  Wi Fi  antenna cable  replacing 112    lenovo     
24.  assembly    on page 151     Note       necessary  apply the appropriate amount of thermal grease on the bottom of the heat sink  and fan assembly     Install all memory modules and PCI Express cards removed from the failing system board onto the new  system board  See    Installing or replacing a memory module    on page 131 and    Installing or replacing a  PCI Express card    on page 129     Refer to your record to connect cables to the new system board  You also can refer to    Locating  parts on the system board    on page 79 to help you locate the connectors on the system board and  connect cables     To complete the replacement  go to    Completing the parts replacement    on page 174     The failing system board must be returned with a microprocessor socket cover to protect the pins during  shipping and handling     160  ThinkCentre E73 Hardware Maintenance Manual    To install the microprocessor socket cover  do the following     1  After you have removed the microprocessor from the failing system board  close the microprocessor  retainer and then put the lever to the locked position to secure the retainer in place     2  Note the orientation of the socket cover  and install one side of the socket cover onto the microprocessor  socket  Carefully press the other side of the socket cover downward until the socket cover snaps  into position     Note  Your microprocessor socket and cover might look slightly different from the illustration        Figure 105  Installing th
25.  card reader    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the slim card reader   Note  The slim card reader is only available in some models     To replace the slim card reader  do the following     1  Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer     2  Remove the computer cover  See    Removing the computer cover    on page 82   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 83     4  Record the cable routing of the installed slim card reader and disconnect the cable of the slim card  reader from the system board     5  Remove the screw that secures the slim card reader bracket and then remove the bracket from the  chassis     98  ThinkCentre E73 Hardware Maintenance Manual                                        BSSSSSSSSA          Figure 31  Removing the slim card reader bracket    6  Remove the two screws that secure the card reader to the bracket  Then  slide the card reader as  shown to remove it from the bracket     Note  Touch only the edges of the card reader  Do not touch the circuit board of it        Figure 32  Removing the slim card reader from the bracket    7  Take the new card reader out of the static protecti
26.  computer cool before removing the  computer cover     To remove the computer cover  do the following   1  Remove any media from the drives and turn off all attached devices and the computer   2  Disconnect all power cords from electrical outlets     3  Disconnect the power cords  Input Output cables  and any other cables that are connected to the  computer  See    Locating connectors  controls  and indicators on the front of your computer    on page  74 and    Locating connectors on the rear of your computer    on page 75     4  Remove any locking device that secures the computer cover  such as a padlock or a Kensington style  cable lock     5  Remove the two screws that secure the computer cover and slide the computer cover to the rear to  remove it        Figure 60  Removing the computer cover    126  ThinkCentre E73 Hardware Maintenance Manual    Removing and reinstalling the front bezel    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to remove and reinstall the front bezel     To remove and reinstall the front bezel  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126     3  Remove the front bezel by releasing the three plastic tabs on the top of the front bezel and pivoting  the front bezel outward to
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28.  disk drive     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  135       Figure 73  Connecting a SATA hard disk drive    8  Position the new hard disk drive into the hard disk drive bay and align the screw holes in the new hard  disk drive with the corresponding holes in the drive bay  Then  install the four screws to secure the  new hard disk drive in place              Figure 74  Installing the hard disk drive    What to do next     To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement         page 174     Replacing the optical drive    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to install or replace the optical drive     Note  The optical drive is only available in some models     136  ThinkCentre E73 Hardware Maintenance Manual    To replace an optical drive  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127   4      Pivot the drive bay assembly upward  See    Accessing the system board components and drives    on  page 128      Disconnect the signal cable and the power cable fr
29.  expand  the capabilities of your computer and maintain your computer by installing or replacing hardware     Attention     Do not open your computer or attempt any repair before reading and understanding  Important safety information   on page 1        Notes   1  Use only computer parts provided by Lenovo     2  When installing or replacing an option  use the appropriate instructions in this section along with the  instructions that come with the option     Installing external options    You can connect external options to your computer  such as external speakers  a printer  or a scanner  For  some external options  you must install additional software in addition to making the physical connection   When installing an external option  see  Locating connectors  controls  and indicators on the front of your  computer    on page 67 and    Locating connectors on the rear of your computer    on page 68 to identify the    O Copyright Lenovo 2013 81    required connector  Then  use the instructions that come with the option to help you make the connection  and install any software or device drivers that are required for the option     Removing the computer cover    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to remove the computer cover     CAUTION     Turn off the computer and wait three to five minutes to let the computer cool before re
30.  for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     Software problems  Select your symptom from the following list     e    When using a sort feature  dates do not sort in the correct order  on page 51  e  Software does not work as expected  on page 51    When using a sort feature  dates do not sort in the correct order  Symptom  When using a sort feature  dates do not sort in the correct order     Action  Some software developed before the year 2000 used only the last two digits of a year to sort  dates  always assuming the first two digits were 19  Consequently  these programs sort dates out of order   Check with your software manufacturer to see if any updates are available  Many software manufacturers  make updates available from the World Wide Web     Software does not work as expected  Symptom  Software does not work as expected     Chapter 5  Troubleshooting and diagnostics 51    Actions     Most software programs have built in help systems that provide instructions for most tasks  If you are  having difficulty performing a specific task within a software program  refer to the help system for that  program  Help systems are typically accessible from a menu or button in the program  and frequently  from the F1 key     If you are having difficulty with the Windows operating system or one of its components  refer to the  Windows help system  It is accessible from the Windows Start menu     To determine if problems are caused 
31.  least 305 mm  12 inches   apart     3  Turn on the monitor     You can reset the refresh rate through your operating system Control Panel     On the Windows 7 operating system  click Start  gt  Control Panel  gt  Hardware and Sound   Adjust  screen resolution  gt  Advanced Settings  Then click the Monitor tab and select a new refresh rate     On the Windows 8 operating system  open Control Panel and click Hardware and Sound  gt  Adjust  screen resolution  gt  Advanced Settings  Then click the Monitor tab and select a new refresh rate     e See your operating system documentation or help for further information on monitor settings     If these actions do not correct the problem  your monitor might need service  See  Lenovo Support Web  site  on page 32 for details     The image is discolored  Symptom  The image is discolored     Action  The monitor might be affected by interference from nearby equipment  Magnetic fields around other  devices  such as transformers  appliances  fluorescent lights  and other monitors might be causing the  problem  Move fluorescent desk lighting or any equipment that produces magnetic fields further away from  the monitor  If this does not correct the problem  do the following     1  Turn off the monitor   Moving a color monitor while it is turned on might cause screen discoloration    2  Adjust the placement of the monitor and other devices so that they are at least 305 mm  12 inches  apart   3  Turn on the monitor     If these actions do not co
32.  remove it from the computer  Carefully lay the front bezel aside without  disconnecting the power switch and light emitting diode  LED  assembly cable        Figure 61  Removing the front bezel    4  To reinstall the front bezel  align the other three plastic tabs on the bottom of the front bezel with the  corresponding holes in the chassis  then pivot the front bezel inward until it snaps into position     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  127       Figure 62  Reinstalling the front bezel    What to do next   e To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 174     Accessing the system board components and drives    Attention   Do not open your computer or attempt any repair before reading and understanding    Important safety information       on page 1        This section provides instructions on how to access the system board components and drives     To access the system board components and drives  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127     128  ThinkCentre E73 Hardware Maintenance Manual    4  Pivot the drive bay assembly upward to access all the internal drives  cables  and ot
33.  that requires a USB 2 0 connection  such as a keyboard  a  mouse  a scanner  a printer  or a personal digital assistant  PDA      Used to attach a device that requires a USB 2 0 or 3 0 connection  such as a  keyboard  a mouse  a scanner  a printer  or a personal digital assistant  PDA   A  USB 3 0 connector provides high transmission speeds to reduce the time that is  required for data transmission     Used to attach a VGA monitor or other devices that use a VGA monitor connector     Locating major FRUs and CRUs    Figure 8    Component locations    on page 77 shows the locations of the various components in your  computer  To remove the computer cover  see    Removing the computer cover    on page 126     76 ThinkCentre E73 Hardware Maintenance Manual       7  7777  7777777      E          IN                Figure 8  Component locations    The following table lists the major FRUs shown in Figure 8    Component locations    on page 77 and identifies    which FRUS also are self service CRUs or optional service CRUS     77    Chapter 8  Locations    Notes     e Self service CRUs  These CRUs unplug or are secured by no more than two screws  Examples of  these types of CRUs include the keyboard  the mouse  any USB device  and the power cord  Other  self service CRUs depending on product design might include memory modules  adapter cards  hard  disk drives  and optical drives     e Optional service CRUs  These CRUs are isolated parts within the computer and are concealed by      
34.  the following     e For Windows 7  Click Start  gt  Control Panel  gt  System and Security  gt  System  gt  System  Protection  gt  System Restore     e For Windows 8  Open Control Panel  and then click System and Security  gt  System  gt  System  Protection  gt  System Restore     If this does not correct the problem  continue with the next step   6  Run the diagnostic program  See    Lenovo Solution Center    on page 53 for more information     e  f the diagnostic program detects a hardware failure  contact the Lenovo Customer Support Center   See    Lenovo Support Web site    on page 32 for more information     36  ThinkCentre E73 Hardware Maintenance Manual    e  f you are unable to run the diagnostic program  contact the Lenovo Customer Support Center  See     Lenovo Support Web site    on page 32 for more information     e Ifthe diagnostic program does not detect a hardware failure  continue with the next step     7  Use an antivirus program to see if your computer has been infected by a virus  If the program detects a  virus  remove the virus     8  If none of these actions solve the problem  seek technical assistance  See    Lenovo Support Web  site    on page 32 for more information        Troubleshooting    Use the troubleshooting information to find solutions to problems that have definite symptoms     If the symptom your computer is experiencing occurred immediately after you installed a new hardware  option or new software  do the following before referring to t
35.  the wake  up on alarm feature  do the following     58  ThinkCentre E73 Hardware Maintenance Manual      Start the Setup Utility program  See    Starting the Setup Utility program    on page 55     From the Setup Utility program main menu  select Power  gt  Automatic Power On  and press Enter     Select Wake Up on Alarm and press Enter  Then follow the instructions on the screen             N        Press   10 to save changes and exit the Setup Utility program  Press Enter when prompted to  confirm the exit        Enabling the after power loss feature    The after power loss feature enables your computer to wake up when the power supply resumes after a  sudden loss of electricity  To enable the after power loss feature  do the following     1  Start the Setup Utility program  See    Starting the Setup Utility program    on page 55    2  From the Setup Utility program main menu  select Power  gt  After Power Loss  and press Enter   3  Select Power On and press Enter   4      Press F10 to save changes and exit the Setup Utility program  Press Enter when prompted to  confirm the exit        Changing the BIOS settings before installing a new operating system    BIOS settings vary by operating system  Change the BIOS settings before installing a new operating system     To change the BIOS settings  do the following   1  Start the Setup Utility program  See    Starting the Setup Utility program    on page 55   2  From the Setup Utility program main menu  select Exit  gt  OS Optimi
36.  up to a maximum of 8 GB     To install or replace a memory module  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127   4      Pivot the drive bay assembly upward to gain access to the memory slots  See    Accessing the system  board components and drives    on page 128       Remove the heat sink fan duct  See    Replacing the heat sink and fan assembly    on page 151     Locate the memory slots  See    Locating parts on the system board    on page 79              7  Remove any parts that might prevent your access to the memory slots  Depending on your computer  model  you might need to remove the PCI Express x16 graphics card for easier access to the memory  slots  See    Installing or replacing a PCI Express card    on page 129     8  Depending on whether you are installing or replacing a memory module  do one of the following     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  131    e  f you are replacing an old memory module  open the retaining clips and gently pull the memory  module out of the memory slot                          Figure 66  Removing a memory module    e  f you are installing a memory module  open the retaining clips of the memory slot into which you  want to install the memory module                          F
37.  vary     Accessing Lenovo programs on the Windows 7 operating system    On the Windows 7 operating system  you can access Lenovo programs from either the Lenovo  ThinkVantage   Tools program or from Control Panel     30  ThinkCentre E73 Hardware Maintenance Manual    Accessing Lenovo programs from the Lenovo ThinkVantage Tools program    To access Lenovo programs from the Lenovo ThinkVantage Tools program  click Start  gt  All Programs  gt   Lenovo ThinkVantage Tools  Then double click a program icon to access the program     Note  If a program icon in the Lenovo ThinkVantage Tools program navigation window is dimmed  it  indicates that you need to install the program manually  To install the program manually  double click the  program icon  Then  follow the instructions on the screen  When the installation process completes  the  program icon will be activated     Table 1  Programs in the Lenovo ThinkVantage Tools program    Power Manager Power Controls    Recovery Media Factory Recovery Disks    Rescue and Recovery  Enhanced Backup and Restore  System Update Update and Drivers    Note  Depending on your computer model  some of the programs might not be available        Accessing Lenovo programs from Control Panel    To access Lenovo programs from Control Panel  click Start  gt  Control Panel  Then depending on the  program you want to access  click the corresponding section and then click the corresponding green text     Note  If you do not find the program you need in Con
38. 0  ThinkCentre E73 Hardware Maintenance Manual      To complete the installation or replacement  go to    Completing the parts replacement  on page 174     Installing or removing the front Wi Fi antenna    Attention     Do not open your computer or attempt any repair before reading and understanding the    Important safety information     on page 1        This section provides instructions on how to install or remove the front Wi Fi antenna     Installing the front WiFi antenna  To install the front WiFi antenna  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127   4  Peel off the paper that protects the stickers on the front antenna     Figure 119  Peeling off the paper that protects the stickers    Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  171    5  Stick the front antenna to the front panel as shown  Then insert the front antenna cable through the  hole in the front panel        Figure 120  Installing the front WiFi antenna  6  Connect the front antenna cable to the WiFi card module     What to do next     To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 174     Removing the front Wi Fi antenna  To remov
39. 0AU  10AW  10BF  and 10BG  155    9  Insert the connector and cable of the new thermal sensor into the hole Ell in the chassis  Then  align the  two tabs on the plastic holder holding the thermal sensor with the two holes Ell and      the chassis   and push the plastic holder until it snaps into position        Figure 100  Installing the thermal sensor    10  Connect the cable of the new thermal sensor to the thermal sensor connector on the system board  See   Locating parts on the system board  on page 79     What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replacement  on page 174     Replacing the microprocessor    Attention   Do not open your computer or attempt any repair before reading and understanding  Important safety information     on page 1        This section provides instructions on how to replace the microprocessor     CAUTION        The heat sink and microprocessor might be very hot  Turn off the computer and wait three to five  minutes to let the computer cool before removing the computer cover     To replace the microprocessor  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See  Removing the computer cover  on page 126     156  ThinkCentre E73 Hardware Maintenance Manual    3  Remove the heat sink and fan assembly  See    Replacing the heat sink and fan asse
40. 212  F  014 74232  DAI      8 8E7ILE SNEHI                 HAAS 21712      HS LE                    AO         A IS SAIS     A    9    CD ROM  DVD ROM 2H          ER  EE SA YAY ZS        MES SAB UH   Cheat 22 Sig SUIS HISAS       BOWE SA  OAS  SAWE SH 21011  SAL OLA  SE  HHO          Bal FOE  ASAE           Sela   ae F30  SELIC       HUA 21 019191 AA FE  MIO 28 SL SME      HRS        SAI SEE E USLC     24   ThinkCentre E73 Hardware Maintenance Manual    A    y SHOE YHE SAS      LE BAA 3B HoH LE SLICE  CHS FAZIONI LS HA IZ     n    Jo                  Be       SAL LAF             SMO  EU HE MOIX LES SHIS         HE Ast PS    HBE SENO SMS AA            LES SHA LO      gt 18 kg  37 Ibs   gt  32 kg  70 5 Ibs   gt  55 kg  121 2 165        FS                  sa           THE mese     AA    20    EIS  Mel MO  HE 5  HS SS SAS   JAE E 0149  DES ID UE 4 9            LEX  BHISHUA O     AA    2 u  134 s         AA    PELIGRO    14 SAXE ARS 3101        Sus 4718 AES  OAL   LIC   FAIA RE HAS REFSER EMEA 157  ER              A OAL  T ME    La corriente el  ctrica procedente de cables de alimentaci  n  tel  fonos y cables de comunicaci  n puede  ser peligrosa     Para evitar el riesgo de descarga el  ctrica     e No conecte ni desconecte los cables ni realice ninguna tarea de instalaci  n  mantenimiento o  reconfiguraci  n de este producto durante una tormenta el  ctrica     e Conecte todos los cables de alimentaci  n a tomas de corriente debidamente cableadas y  conectadas a tierra       Cu
41. 8  Connect the rear fan assembly cable to the system fan connector on the system board     What to do next     To work with another piece of hardware  go to the appropriate section   e To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Replacing the battery    Attention   Do not open your computer or attempt any repair before reading and understanding    Important safety information       on page 1        Your computer has a special type of memory that maintains the date  time  and settings for built in features   such as parallel port assignments  configuration   A battery keeps this information active when you turn  off the computer     The battery normally requires no charging or maintenance throughout its life  however  no battery lasts  forever  If the battery fails  the date  time  and configuration information  including passwords  are lost  An  error message is displayed when you turn on the computer     Refer to the    Lithium battery notice    in the ThinkCentre Safety and Warranty Guide for information about  replacing and disposing of the battery     To replace the battery  do the following     92  ThinkCentre E73 Hardware Maintenance Manual    1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82     3  Depending on your computer model  you might need to remove the PCI Express x 16 graphics card for  eas
42. B                                                                                                               Na  E            Figure 9  System board part locations    E 4 pin power connector   BE Microprocessor   Ell Microprocessor fan connector  El Memory slot 1  DIMM1        Memory slot 2  DIMM2         Thermal sensor connector   Power fan connector   El Hard disk drive  Optical drive power connectors  EZ 24 pin power connector        BIOS ROM   SATA 3 0 connectors   EF  Power supply fan connector         SATA 2 0 connector    d m mmi       m    ET  Front panel connector  for connecting LED indicators and  the power switch     EE  Front USB connector 1  for connecting USB ports 1 and 2  on the front bezel          Front USB connector 2  for connecting an additional USB  device     Clear CMOS  Complementary Metal Oxide Semiconductor    Recovery jumper         Clear CMOS  Recovery jumper  EU Serial  COM   connector   EN  Front audio connector        Internal speaker connector   ED PCI Express x1 card slots  2    FA PCI Express x16 graphics card slot         System fan connector  EH Battery    Chapter 8  Locations 79    Locating internal drives    Internal drives are devices that your computer uses to read and store data  You can add drives to your  computer to increase storage capacity and enable your computer to read other types of media  Internal  drives are installed in bays  In this manual  the bays are referred to as bay 1  bay 2  and so on     When installing or repl
43. N      Click Defragment Now again to start a disk defragmentation process     On the Windows 8 operating system  do the following   1  Close any programs that are currently running and close any open windows     Open the Windows Explorer and click Computer     Right click your C drive entry and then click Properties     Click the Tools tab     Click Optimize        0 E W DY      Click Optimize again to start a disk defragmentation process     Insufficient memory  Symptom  Insufficient memory    In general  the more memory that is installed  the better the Windows operating system runs   Action  Install additional memory  For information about purchasing memory  see  Lenovo Support Web  site  on page 32  For step by step instructions on installing memory  see  Installing or replacing a memory    module  on page 88     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     Printer problems    Symptom  The printer does not work     50 ThinkCentre E73 Hardware Maintenance Manual    Actions  Verify that   1  The printer is turned on and is online   2  Paper is loaded correctly   3  The printer signal cable is securely connected to the correct parallel  serial  or USB connector on the  computer   Note  Non IEEE approved printer signal cables might cause unpredictable problems   1  Any device drivers and other software that cam
44. V ac  Maximum  127 V ac  Input frequency range  50 to 60 Hz  Voltage selection switch setting  115 V ac    High range   Minimum  200 V ac  Maximum  240 V ac  Input frequency range  50 to 60 Hz    Voltage selection switch setting  230 V ac       O Copyright Lenovo 2013 29    For machine types  10AU  10AW  10BF  and 10BG    Dimensions  Width  97 mm  3 8 inches   Height  333 mm  13 1 inches   Depth  368 mm  14 5 inches   Weight  Maximum configuration as shipped  6 kg  13 2 Ib   without package   Maximum configuration as shipped  8 5 kg  18 7 Ib   with package   Environment  e Air temperature   Operating  10  C to 35  C  50  F to 95  F   Storage in original shipping package   40  C to 60  C   40  F to 140  F   Storage without package   10  C to 60  C  14  F to 140  F   without package   e Humidity   Operating  20  to 80   non condensing   Non operating  20  to 90   non condensing   e Altitude     Operating   15 2 to 3 048 m   50 to 10 000 ft   Non operating   15 2 to 10 668 m   50 to 35 000 ft     Electrical input  e Input voltage       Low range   Minimum  100 V ac  Maximum  127 V ac  Input frequency range  50 to 60 Hz  Voltage selection switch setting  115 V ac    High range   Minimum  200 V ac  Maximum  240 V ac  Input frequency range  50 to 60 Hz  Voltage selection switch setting  230 V ac          Lenovo programs    Your computer comes with Lenovo programs to help you work more easily and securely  Depending on the  Windows   operating system preinstalled  the programs might
45. ZIONE     Il pulsante di controllo dell alimentazione presente sull unita e l interruttore dell alimentatore non  disattivano l alimentazione corrente fornita all unit    E  possibile che l unit   disponga di pi   cavi di  alimentazione  Per disattivare l alimentazione dall unit    accertarsi che tutti i cavi di alimentazione  siano scollegati dalla fonte di alimentazione     AA    2U     10    Chapter 2  Safety information 23                  da  Ast  SU 110129  ARE 928116              das  HAS       CES ZO  SAID       4747  ALE SOE ALES AB LE          E MES MAXI  ES  MPI  DIA     rin  A    o     F  nk           BALE  217    AAEH     Yo 022401 SA0 LE BP FAS HAS BCH AX  OAL     ur  IR  rir        5  E  rp      SA 3  FAI 220  ES  ZIA  AFO LE AS  BAS  IIS 27  Moll OE  HA DE  AA SAI          HEHA                                    E        ABE SRE SAI              SWS ES  2 EME Allee AAPL   le    ze         M    1 28 EXA AAS DUAL               HAS DUAL                       AR Ce 10122 SAM ALIADO    AR BAEAN AA DOS zeloleAI 9                       2  HAEA AS HOSS SESEALS  3 2  HEJOI AI      HOSS FIENO   4       ade AR DSS AZAL           SAQA DE 3028 ZAAL              a                                             mg MiS Part Number 45  1566 ES MIAMI ABE SAS SR MES SHAIL   ABA  AIS EO  218 HEIS ESS PSU 32  SUB MEAN SUE DE PUSE MAI MESE  AISHA   HHELZIONE  2 80  HRH 8101 ER AS  HE ES MIE IS ZE   1810  ALICE   ALE SHXISHABI CHE AS ESA      ERIE E 201 HRAL AISALFIR DHIAIS      1000  
46. a di alimentazione correttamente cablata e dotata di messa a  terra       Collegare alle prese elettriche appropriate tutte le apparecchiature che verranno utilizzate per  questo prodotto       Se possibile  utilizzare solo una mano per collegare o scollegare i cavi di segnale       Non accendere assolutamente apparecchiature in presenza di incendi  perdite d acqua o danno  strutturale     e Scollegare i cavi di alimentazione  i sistemi di telecomunicazione  le reti e il modem prima di  aprire i coperchi del dispositivo  salvo istruzioni contrarie relative alle procedure di installazione e  configurazione     e Collegare e scollegare i cavi come descritto nella seguente tabella quando vengono effettuate  operazioni di installazione  spostamento o apertura dei coperchi di questo prodotto o delle unit    collegate     Per collegarsi Per scollegarsi      SPEGNERE le apparecchiature    SPEGNERE le apparecchiature     Innanzitutto  collegare tutti i cavi alle unit      Innanzitutto  rimuovere i cavi di alimentazione dalla      Collegare i cavi di segnale ai connettori  presa       Collegare i cavi di alimentazione alla presa  3  Rimuovere i cavi di segnale dai connettori        Accendere  l unit    4  Rimuovere tutti i cavi dalle unit          ATTENZIONE     Quando si sostituisce la batteria al litio  utilizzare solo il Numero parte 45C1566 o un tipo di batteria  equivalente consigliato dal produttore  Se sul sistema    presente un modulo che contiene una batteria  al litio  sosti
47. acing an internal drive  it is important to note the type and size of the drive that you  can install or replace in each bay and correctly connect the cables to the drive installed  Refer to the  appropriate section in    Installing or replacing hardware    on page 125 for instructions on how to install or  replace internal drives for your computer     Figure 10    Drive bay locations    on page 80 shows the locations of the drive bays                    ALLLLLLLLILILILILILIDIE                Figure 10  Drive bay locations  Bay 1   Secondary hard disk drive bay  with a SATA solid state drive or a hybrid hard disk drive installed in  some models   El Bay 2   Optical drive bay  with an optical drive installed in some models   El Bay 3   Slim card reader drive bay  with a slim card reader installed in some models          Bay 4   Hard disk drive bay  with a 2 5 inch or 3 5 inch SATA hard disk drive installed     80 ThinkCentre E73 Hardware Maintenance Manual       Chapter 9  Replacing FRUs  machine types  10AS and 10AU     This chapter provides information about the FRU replacement instructions  Not all FRUs are documented     Important  Ensure that you read and understand Chapter 2    Safety information    on page 3 before replacing  any FRU  These precautions and guidelines will help you work safely     Note  FRU replacements are to be done only by trained service technicians        Handling static sensitive devices    Do not open the static protective package containing the n
48. acket        Figure 88  Removing the solid state drive from the bracket    8  Take the new solid state drive out of the static protective package     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  145    9  Slide the new solid state drive into the solid state drive bracket as shown until the four holes in the  drive are aligned with the corresponding holes in the bracket  Then  install the four screws to secure the  new solid state drive to the bracket                          Figure 89  Installing the solid state drive into the bracket    10  Carefully slide the solid state drive bracket downward until it is secured by the three retaining clips       the bottom of the optical drive bay              Figure 90  Installing the solid state drive bracket    146  ThinkCentre E73 Hardware Maintenance Manual    11  Install the screw      secure the bracket on the bottom of the optical drive bay              Figure 91  Installing the screw to secure the bracket on the bottom of the optical drive bay    12  Connect one end of the signal cable to the bottom of the new solid state drive and the other end to  an available SATA connector on the system board  See    Locating parts on the system board    on  page 79  Then  locate an available four wire power connector and connect it to the bottom of the  new solid state drive    What to do next    e To work with another piece of hardware  go to the appropriate section       To complete the installation or replacement
49. age 1        This section provides instructions on how to replace the system board     CAUTION     The heat sink and microprocessor might be very hot  Turn off the computer and wait three to five  minutes to let the computer cool before opening the computer cover     To replace the system board  do the following     1  Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer       Lay the computer on its side for easier access to the system board     Remove the computer cover  See  Removing the computer cover  on page 126     Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127        fk WwW N      Pivot the optical drive bay assembly upward to gain access to the system board  See    Accessing the  system board components and drives    on page 128     6  Remove all memory modules and PCI Express cards that are currently installed  See    Installing or  replacing a memory module    on page 131 and    Installing or replacing a PCI Express card    on page 129     7  Remove the heat sink and fan assembly from the failing system board  See    Replacing the heat sink and  fan assembly    on page 151   Note  Do not let the thermal grease on the bottom of the heat sink and fan assembly get in contact  with anything     8  Record the cable routing and cable connections and then disconnect all cables from t
50. age 126     3  If your computer comes with a Wi Fi card module that supports the Bluetooth function  disconnect  the Bluetooth cable from the Wi Fi adapter card        Figure 109  Disconnecting the Bluetooth cable    Note  The Bluetooth cable connects the Bluetooth connector on the Wi Fi adapter card to the front USB  connector on the system board to support the Bluetooth function     4  Remove the screw that secures the Wi Fi adapter card     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  165    5  Grasp the Wi Fi adapter card that is currently installed and gently pull it out of the slot        Figure 110  Removing the WiFi adapter card    Note  The card fits tightly into the card slot       necessary  alternate moving each side of the card     small amount until it is removed from the card slot     What to do next   e To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 174     Removing the Wi Fi card module  To remove the Wi Fi card module  do the following     1  Remove the Wi Fi adapter card from the computer  and then disconnect the front and rear Wi Fi antenna  cables from the Wi Fi card module        Figure 111  Removing the Wi Fi antenna cables    166  ThinkCentre E73 Hardware Maintenance Manual    2  Remove the two screws that secure the Wi Fi card module to the Wi Fi adapter card          t       Figure 112  Removing the s
51. al drive  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82   3  Remove the front bezel  See  Removing and reinstalling the front bezel    on page 83     96  ThinkCentre E73 Hardware Maintenance Manual    4  Remove the three screws that secure the optical drive  Then  slide the optical drive out of the front    of the computer                                      Figure 28  Removing the optical drive    drive with the corresponding holes in the drive bay  Then  install the three screws to secure the new    5  Slide the new optical drive into the drive bay from the front and align the screw holes in the new optical  optical drive in place                                      Figure 29  Installing the optical drive    97    Chapter 9  Replacing FRUs  machine types  10AS and 10AU     6  Connect one end of the signal cable to the rear of the new optical drive and the other end to an available  SATA connector on the system board  See    Locating parts on the system board    on page 72  Then   locate an available five wire power connector and connect it to the rear of the new optical drive        Figure 30  Connecting the optical drive    What to do next     To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Replacing the slim
52. alquier equipo que se conecte a este producto tambi  n debe conectarse a tomas de corriente  debidamente cableadas     e Siempre que sea posible  utilice una sola mano para conectar o desconectar los cables de se  al     Chapter 2  Safety information 25       No encienda nunca un equipo cuando hay se  ales de fuego  agua o da  os estructurales     e Desconecte los cables de alimentaci  n  los sistemas de telecomunicaciones  las redes y los  m  dems conectados antes de abrir las cubiertas de los dispositivos  a menos que se indique lo  contrario en los procedimientos de instalaci  n y configuraci  n        Conecte y desconecte los cables  como se describe en la tabla siguiente  cuando instale  mueva o  abra las cubiertas de este producto o de los dispositivos conectados     Para conectar Para desconectar    1  AP  GUELO todo    AP  GUELO todo       En primer lugar  conecte todos los cables a los   En primer lugar  desenchufe los cables de alimentaci  n  dispositivos  de las tomas de corriente     3  Conecte los cables de se  al a los conectores  3  Desconecte los cables de se  al de los conectores     4  Enchufe los cables de alimentaci  n a las tomas de 4  Desconecte todos los cables de los dispositivos   corriente       Encienda el dispositivo        PRECAUCI  N     Cuando sustituya una bater  a de litio  utilice solamente una bater  a n  mero de pieza 45C1566 u otra  de tipo equivalente recomendada por el fabricante  Si su sistema dispone de un m  dulo que contiene  una bat
53. am calls out   e lf the test stops and you cannot continue  replace the last device tested        Problem determination tips    Due to the variety of hardware and software combinations that can be encountered  use the following  information to assist you in problem determination  If possible  have this information available when  requesting assistance from Service Support and Engineering functions     e Machine type and model   e Processor or hard disk drive upgrades   e Failure symptom    Do diagnostics indicate a failure       What  when  where  single  or multiple systems     Is the failure repeatable     O Copyright Lenovo 2013 33      Has this configuration ever worked       Ifit has been working  what changes were made prior to it failing     Is this the original reported failure   e Diagnostics version    Type and version level    Hardware configuration      Print  print screen  configuration currently in use      BIOS level    Operating system software      Type and version level    Note  To eliminate confusion  identical systems are considered identical only if they   1  Are the exact machine type and models     Have the same BIOS level     Have the same adapters attachments in the same locations     Have the same address jumpers terminators cabling     Have the same software versions and levels     Have the same diagnostic diskettes  version      Have the same configuration options set in the system    ON DOA BW PD      Have the same setup for operating system contr
54. anual       Index    A    accessing   system board components 128  Administrator  password 56  audio line in connector 68  75  audio line out connector 68  75    basic troubleshooting 35  battery  replacing 92  133  BIOS settings  changing 59  Boot block Recovery 179    C    changing   password 56   startup device sequence 58  CMOS  clearing 57  components  internal 69  76  computer cover   removing 82  126  computer cover  reinstalling 122  174  connector 68  75  connectors   rear 68 75  connectors  controls  indicators   front 67 74  considerations  passwords 56  CRU   completing the installation 122  174  CRUS  Customer Replacable Units   returning   defective 69  76    D    deleting a password 56  Description 68  75  desktop computers  hardware  installing or replacing  device drivers  obtaining 175  external options 125  device drivers  obtaining 123  175  devices  handling static sensitive 81  125  diagnostics  troubleshooting 35  DisplayPort connector 68  75  drives  bays 73  80  specifications 73  80    E    environment  operating 29 30       Copyright Lenovo 2013    Ethernet connector 68  76   exiting  Setup Utility 59   external options  installing  desktop computers 125  external options  installing  tower computers 81    F    failure  recovering from a POST and BIOS update 179  flashing the BIOS 178  front   connectors  controls  indicators 67  74  front audio and USB assembly  replacing 111  163  front bezel   front bezel  removing 83  127  front bezel  reinstall
55. ard module    Installing the Wi Fi units  To install the Wi Fi units  do the following     Chapter 9  Replacing FRUs  machine types  10  5 and 10AU     115    1  Insert the Wi Fi card module into the mini PCI Express slot  and then install the two screws to secure  the Wi Fi card module to the Wi Fi adapter card        Figure 50  Installing the Wi Fi card module    116  ThinkCentre E73 Hardware Maintenance Manual    2  Connect the front antenna cable and rear antenna cable to the Wi Fi card module        Figure 51  Installing the Wi Fi antenna cables    3  Install the Wi Fi adapter card into the PCI Express x1 slot on the system board  See    Locating parts on  the system board    on page 72    4  If the installed Wi Fi card module supports the Bluetooth function  use a Bluetooth cable to connect the  Bluetooth connector on the Wi Fi adapter card to the front USB connector on the system board     5  Pivot the card latch to the closed position to secure the Wi Fi adapter card                   M ea    X             5   NN  WIT             Y                   Figure 52  Installing the WiFi adapter card    What to do next   e To work with another piece of hardware  go to the appropriate section     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  117    e To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Installing or removing the rear Wi Fi antenna    Attention     Do not open your computer or attempt any repair be
56. ard slot  If necessary  alternate moving each side of the card a small    amount until it is removed from the card slot     b  If the card is held in place by a retaining latch  press the card retaining latch Ell as shown to    disengage the latch  Grasp the card and gently pull it out of the slot        190  ThinkCentre E73 Hardware Maintenance Manual    4  Remove the new PCI Express card from its static protective package     5  Install the new PCI Express card into the appropriate slot on the system board  See    Locating parts on  the system board    on page 79     Note  If you are installing a PCI Express x16 graphics card  ensure that the memory slot retaining clips  are closed before you install the graphics card     6  Install the screw to secure the new PCI Express card in place     What to do next     To work with another piece of hardware  go to the appropriate section       To complete the installation or replacement  go to    Completing the parts replacement  on page 174     Installing or replacing a memory module    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to install or replace a memory module     Your computer has two slots for installing or replacing DDR3 UDIMMs that provide up to a maximum of  8 GB system memory  When installing or replacing a memory module  use 1 GB  2 GB  or 4 GB DDR3  UDIMMs in any combination
57. ating    system       Print these instructions  This is very important because these instructions will not be displayed on    the screen after the download begins   Follow the printed instructions to download  extract  and install the update     Recovering from a POST and BIOS update failure    If the power to your computer is interrupted while the POST and BIOS is being updated  your computer  might not restart correctly  If this happens  perform the following procedure to recover from the POST and  BIOS update failure  This procedure is commonly called Boot block Recovery     1     Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer       Remove the computer cover  For machine types 1577  1579  and 1607  see    Removing the computer    cover    on page 82  For machine types 1578  1583  and 1652  see    Removing the computer cover    on  page 126       Locate the Clear CMOS  Recovery jumper on the system board  See    Locating parts on the system    board    on page 72       Remove any parts and disconnect any cables that might prevent your access to the Clear CMOS     Recovery jumper       Move the jumper from the standard position  pin 1 and pin 2  to the maintenance position  pin 2 and    pin 3      6  Reinstall any parts and reconnect any cables that have been removed or disconnected     10   11   12       Reinstall the c
58. ating system    If your computer is preinstalled with the Windows 8 operating system  you can access Lenovo programs  by doing the following     Press the Windows key to go to the Start screen  Click a Lenovo program to launch it  If you cannot find the  program you need  move the pointer to the bottom right corner of the screen to display the charms  Then  click the Search charm to search for the desired program     Your computer supports the following Lenovo programs   e Fingerprint Software   e Lenovo Companion   e Lenovo Solution Center   e Lenovo Support   e Password Manager   e System Update       Lenovo Support Web site    Technical support information is available on the Lenovo Support Web site at   http   www lenovo com support    This Web site is updated with the latest support information such as the following   e Drivers and software   e Diagnostic solutions   e Product and service warranty   e Product and parts details   e User guides and manuals   e Knowledge base and frequently asked questions    32  ThinkCentre E73 Hardware Maintenance Manual       Chapter 4  General checkout    Attention    The drives in the computer you are servicing might have been rearranged or the drive startup sequence might  have been changed  Be extremely careful during write operations such as copying  saving  or formatting   Data or programs can be overwritten if you select an incorrect drive     General error messages appear if a problem or conflict is found by an application progra
59. board         Touch only the edges of the microprocessor  Do not touch the gold contacts on the bottom     d  Do not drop anything onto the microprocessor socket while it is exposed  The socket pins must be  kept as clean as possible     7  Ensure that the small handle is in the raised position and the microprocessor retainer is fully open   8  Remove the protective cover that protects the gold contacts of the new microprocessor     9  Hold the new microprocessor by its sides and align the small triangle on one corner of the new  microprocessor with the corresponding small triangle on one corner of the microprocessor socket     10  Lower the new microprocessor straight down into the microprocessor socket on the system board        Figure 103  Installing the microprocessor    11  Close the microprocessor retainer and lock it into position with the small handle to secure the new  microprocessor in the socket     12  Reinstall the heat sink and fan assembly  See    Replacing the heat sink and fan assembly  on page 151   13  Reconnect all cables that were disconnected from the system board     158  ThinkCentre E73 Hardware Maintenance Manual    What to do next     To work with another piece of hardware  go to the appropriate section     To complete the replacement  go to  Completing the parts replacement  on page 174     Replacing the system board    Attention     Do not open your computer or attempt any repair before reading and understanding  Important safety information   on p
60. board power supply connectors  e Microprocessor s  connection    Check the power cord for continuity   Check the power on switch for continuity     Beep symptoms    Beep symptoms are tones or a series of tones separated by pauses  intervals without sound  during POST        O Copyright Lenovo 2013 61    The following tables describes beep symptoms     Beep Symptom FRU Action    2 short beeps CMOS setting error Perform the following actions in order     1  Start the Setup Utility program and press F10 to  Save and exit  See Chapter 6    Using the Setup Utility  program    on page 55     2  Start the Setup Utility program and press F9 to load  defaults and then press F10 to Save and exit     3  Perform a Boot block recovery  See    Recovering  from a POST and BIOS update failure    on page 179   3 short beeps and then 1 long beep DRAM memory Perform the following actions in order   error 1  Make sure the memory module s  are properly seated  in the connector s    2  Replace the memory module s      3  Replace the system board        POST error codes    Each time you power on the system  it performs a series of tests that check the operation of the system  and some options  This series of tests is called the Power On Self Test  or POST  POST does the following  operations     e Checks some basic system board operations   e Checks the memory operation   e Starts the video operation   e Verifies that the boot drive is working   If the POST detects a problem  an error message appea
61. by newly installed software  verify that       Your computer has the minimum memory requirements needed to use the software  See the  information supplied with the software to verify memory requirements   If you just installed an adapter  or memory  you might have a memory address conflict        The software is designed to operate on your computer     Other software works on your computer     The software you are using works correctly on another computer     If you received any error messages while using the software program  see the printed documentation  supplied with the software or the help system for that software for a description of the messages and  solutions to the problem     Check with your software manufacturer to see if any updates are available  Many software manufacturers  make updates available from the World Wide Web     If the software program used to work correctly  but does not work correctly now  do the following                 Windows 7 operating system  click Start  gt  Control Panel  gt  System and Security  gt  System   gt  System Protection  gt  System Restore  Then  follow the instructions on the screen       On the Windows 8 operating system  open Control Panel and click System and Security  gt  System  gt   System Protection  gt  System Restore  Then  follow the instructions on the screen     If you are unable to resolve the problem through other methods  uninstall the software program and  reinstall it     If these actions do not correct the pr
62. chains  metal frame eyeglasses  or metal fasteners for your clothing   Remember  Metal objects are good electrical conductors     e Wear safety glasses when you         hammering  drilling  soldering  cutting wire  attaching springs  using  solvents  or working in any other conditions that might be hazardous to your eyes     e After service  reinstall all safety shields  guards  labels  and ground wires  Replace any safety device  that is worn or defective     e Reinstall all covers correctly before returning the machine to the customer     CAUTION     Electrical current from power  telephone  and communication cables can be hazardous  To avoid  personal injury or equipment damage  disconnect the attached power cords  telecommunication  systems  networks  and modems before you open the centre covers  unless instructed otherwise in  the installation and configuration procedures     Electrical safety    Observe the following rules when working on electrical equipment     O Copyright Lenovo 2013 3    Important  Use only approved tools and test equipment  Some hand tools have handles covered with a soft  material that does not insulate you when working with live electrical currents  Many customers have  near  their equipment  rubber floor mats that contain small conductive fibers to decrease electrostatic discharges   Do not use this type of mat to protect yourself from an electric shock     e Find the room emergency power off  EPO  switch  disconnecting switch  or electrical out
63. connector on the system  board  See    Locating parts on the system board  on page 72    What to do next      To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement  on page 122     Replacing the thermal sensor    Attention     Do not open your computer or attempt any repair before reading and understanding the  Important safety information   on page 1        This section provides instructions on how to replace the thermal sensor     To replace the thermal sensor  do the following     1  Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer       Remove the computer cover  See  Removing the computer cover  on page 82     Remove the front bezel  See  Removing and reinstalling the front bezel  on page 83     Locate the thermal sensor See    Locating major FRUs and CRUs    on page 69        a           Disconnect the thermal sensor cable from the thermal sensor connector on the system board  See     Locating parts on the system board    on page 72     104 ThinkCentre E73 Hardware Maintenance Manual    6  From inside the chassis  pivot the retaining clip El that secures the plastic holder of the thermal sensor  inward and then push the clip outward to release the clip  Then disengage the plastic holder holding  the thermal sens
64. crews that secure the Wi Fi card module    3  Pull the Wi Fi card module out of the mini PCI Express slot to remove it from the Wi Fi adapter card        Figure 113  Removing the Wi Fi card module    What to do next     To work with another piece of hardware  go to the appropriate section     e To complete the installation or replacement  go to    Completing the parts replacement    on page 174     Installing the Wi Fi units  To install the Wi Fi units  do the following     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  167    1  Insert the Wi Fi card module into the mini PCI Express slot  and then install the two screws to secure  the Wi Fi card module to the Wi Fi adapter card        Figure 114  Installing the Wi Fi card module    2  Connect the front antenna cable and rear antenna cable to the Wi Fi card module        Figure 115  Connecting the Wi Fi antenna cables    168  ThinkCentre E73 Hardware Maintenance Manual    3  Locate the two PCI Express x1 slots on the system board  See    Locating parts on the system board     on page 79     4  Install the Wi Fi adapter card into one of the two PCI Express x1 slots  Then install the screw to secure  the Wi Fi adapter card in place           Figure 116  Installing the Wi Fi adapter card    What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replacement  on page 174     Installing or removi
65. ctive package containing the new part until the defective part has been removed  from the computer and you are ready to install the new part  Static electricity  although harmless to you  can  seriously damage computer components and parts     When you handle computer parts and components  take these precautions to avoid static electricity damage     e Limit your movement  Movement can cause static electricity to build up around you     e Always carefully handle the parts and other computer components  Handle PCI cards  memory modules   System boards  and microprocessors by the edges  Never touch exposed circuitry       Prevent others from touching the parts and other computer components       Before you replace a new part  touch the static protective package containing the new part to a metal  expansion slot cover or other unpainted metal surface on the computer for at least two seconds  This  reduces static electricity from the package and your body        Remove the new part from the static protective package and directly install it in the computer without  placing it on any other surface  If it is hard for you to do this in your specific situation  place the  static protective package of the new part on a smooth  level surface  and then place the new part on  the static protective package       Do not place the part on the computer cover or other metal surface        Installing or replacing hardware    This section provides instructions on how to install or replace hardwa
66. d module that supports the Bluetooth function  disconnect  the Bluetooth cable from the Wi Fi adapter card                          Figure 45  Disconnecting the Bluetooth cable    Note  The Bluetooth cable connects the Bluetooth connector on the Wi Fi adapter card to the front USB  connector on the system board to support the Bluetooth function     4  At the rear of the computer  remove the screw that secures the PCI card latch     Chapter 9  Replacing FRUs  machine types  10  5 and 10AU  113    5  Grasp the Wi Fi adapter card that is currently installed and gently pull it out of the slot                                   ESA                       Figure 46  Removing the Wi Fi adapter card    Note  The card fits tightly into the card slot       necessary  alternate moving each side of the card     small amount until it is removed from the card slot     Removing the Wi Fi card module  To remove the Wi Fi card module  do the following     1  Remove the Wi Fi adapter card from the computer  and then disconnect the front and rear Wi Fi antenna  cables from the Wi Fi card module        Figure 47  Removing the Wi Fi antenna cables    114  ThinkCentre E73 Hardware Maintenance Manual    2  Remove the two screws that secure the Wi Fi card module to the Wi Fi adapter card        Figure 48  Removing the screws that secure the Wi Fi card module    3  Pull the Wi Fi card module out of the mini PCI Express slot to remove it from the Wi Fi adapter card        Figure 49  Removing the Wi Fi c
67. d the log files when you speak to a Lenovo technical support representative     Chapter 5  Troubleshooting and diagnostics 53    54  ThinkCentre E73 Hardware Maintenance Manual       Chapter 6  Using the Setup Utility program    The Setup Utility program is used to view and change the configuration settings of your computer  regardless  of which operating system you are using  However  the operating system settings might override any similar  settings in the Setup Utility program        Starting the Setup Utility program    To start the Setup Utility program  do the following   1  Make sure your computer is turned off   2  Repeatedly press and release the F1 key when turning on the computer  When you hear multiple  beeps or see a logo screen  release the F1 key     Note  If a Power On Password or an Administrator Password has been set  the Setup Utility program  menu will not be displayed until you type the correct password  For more information  see    Using  passwords    on page 55     When the POST detects that the hard disk drive has been removed from your computer or the memory  module size has decreased  an error message will be displayed when you start the computer and you will be  prompted to do one of the following     e Press F1 to enter the Setup Utility program     Note  After you enter the Setup Utility program  select Save Changes and Exit at the bottom of the  screen  The error message will not be displayed again     e Press F2 to bypass the error message and l
68. disk drives  or the LSI MegaRAID SAS adapter is installed     If these actions do not correct the problem  run the diagnostic program Lenovo Solution Center  See  Lenovo  Solution Center  on page 53  If you need technical assistance  see  Lenovo Support Web site  on page 32     Chapter 5  Troubleshooting and diagnostics 41     No Operating System Found  message or the system not starting from the correct  hard disk drive    Symptom   No Operating System Found    message or the system not starting from the correct hard disk drive    Actions        Ensure that all hard disk drive signal cables and power cables are connected correctly   e Ensure that the hard disk drive your computer starts from is listed as the first startup device in the Setup  Utility program  Refer to    Selecting a startup device    on page 58     Note  In rare cases  the hard disk drive with the operating system might get corrupted or damaged  In such  cases  you might need to replace the hard disk drive     If these actions do not correct the problem  run the diagnostic program Lenovo Solution Center  See    Lenovo  Solution Center    on page 53  If you need technical assistance  see    Lenovo Support Web site    on page 32     Keyboard  mouse  or pointing device problems  Select your symptom from the following list     e    All or some keys on the keyboard do not work    on page 42   e  The mouse or pointing device does not work    on page 43   e    The pointer on the screen does not move smoothly with t
69. dos  observe o seguinte     e N  o remova as tampas     remoc  o das tampas de um produto a laser pode resultar em exposic  o  prejudicial    radiac  o de laser  N  o existem pecas que podem ser consertadas no interior do dispositivo     Chapter 2  Safety information 11       Autilizac  o de controles ou ajustes ou a execuc  o de procedimentos diferentes dos especificados aqui  pode resultar em exposic  o prejudicial    radiac  o     PERIGO  Alguns produtos a laser cont  m diodo de laser integrado da Classe 3A ou da Classe 3B  Observe o seguinte     Radiac  o a laser quando aberto  N  o olhe diretamente para o feixe a olho nu ou com instrumentos   pticos e    evite exposic  o direta ao feixe      gt 18 kg  37 lbs   gt 32 kg  70 5 Ibs   gt 55 kg  121 2 Ibs        CUIDADO     Utilize procedimentos de seguranca para levantar equipamentos     AA    CUIDADO     O bot  o de controle de alimentac  o do dispositivo e o bot  o para ligar desligar da fonte de alimentac  o  n  o desligam a corrente el  trica fornecida ao dispositivo  O dispositivo tamb  m pode ter mais de um cabo  de alimentac  o  Para remover toda a corrente el  trica do dispositivo  assegure que todos os cabos de  alimentac  o estejam desconectados da fonte de alimentac  o     AA    2  7  mp ae  1                        AA    12  ThinkCentre E73 Hardware Maintenance Manual    fe E      iuo f HBP FR C    TE o  Atte HER                             WEE RIE RE SLITTA SAU ERE                        UR  HEP NE              
70. e  Stromversorgung f  r die Einheit vollst  ndig zu unterbrechen  m  ssen alle zum Ger  t f  hrenden  Netzkabel vom Netz getrennt werden     Chapter 2  Safety information 19    AA    2  7  mp m  1            220  PION NIN nmuypm 1920  2nn 2292              Ynwn nar  mm  nunnn non VINNI TD         ASMA         m IX                          noivo 1ysan 281  n232 IPNIN IN MANN da     Ppoa          9nna    NDIN PAXINI NNN   nun YPY    nunn 7222 22 Nx man       M9 D   UNNN Inwn  vor nr ASIN  aam THY 92 man       mx 7232 Dw pino IX man  7222 nns      0wnnun AWONA NTN     DIMM IX WRN NNSIND pri  AX an pri  NITY      WRI YY  TRY 197Y9N IX ny                       nmns 195 DINAN mnmnm nan PNA  nmwpnn                   Sad nx pm             nan amena ny  p mpnnn  DIN DN NON      mana mapnna IX      Asma DDD nmn   IN             mpnn nya            nava NINNI DAN               man          pn T2  an  319          120  1        12   1    Pypunn Inwnn 923 NX IPNI MURI  2  pupnn  0792221 52 nx NAN mw  2   paannnn mnmwn    222 nx 19m  3  pann  mmwen 7222 nx man  3   papnnnn Dada 23 NX         4  D ypu      nwunn  929 nx man  4              nx         5             MYNT   men Tr Dy yYan  nv ONIN 1102 1x 45C 1566 o pn Nya                   wnngn             novo ne  nn Nya  NY mx MANNI      iman NTN pa ame DYNN  nvr  n    Hann  rnn n nownn nx  MINI          DOWN IX      mosum munnuwn           YSIDNN2 12191  nm                                 mna 12207          212  F  100  C n amaan         
71. e  which FRUs are needed when servicing a computer  If you are unable to correct the problem using this  index  go to    Undetermined problems    on page 65     Notes     1  If you have both an error message and an incorrect audio response  diagnose the error message first     2  If you cannot run the diagnostic tests  but did receive a POST error message  diagnose the POST error message  first     3  If you did not receive any error message  look for a description of your error symptoms in the first part of this index           Hard disk drive boot error    A hard disk drive boot error  error codes 1962 and 1999030X         have the following causes               The start up drive is not in the boot sequence in Check the configuration and ensure the start up drive is  configuration  in the boot sequence   No operating system installed on the boot drive  Install an operating system on the boot drive     The boot sector on the start up drive is corrupted  The drive must be formatted  Do the following     1  Attempt to back up the data on the failing hard disk  drive     2  Using the operating systems program  format the  hard disk drive     The drive is defective  Replace the hard disk drive     Power supply problems    If you suspect a power problem  use the following procedures     Check Verify FRU Action    Check the following for proper installation  Reseat connectors          e Power cord    e On Off switch connector    e On Off switch power supply connector    e System 
72. e socket cover onto the microprocessor socket    3  Carefully check the four corners of the socket cover to ensure that the cover is seated securely   4  Follow any additional instructions included with the replacement part you received     Replacing the system fan assembly    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the system fan assembly     To replace the system fan assembly  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127   4      Pivot the drive bay assembly upward to gain access to the system fan assembly  See    Accessing the  system board components and drives    on page 128     5  Remove the hard disk drive for easier access to the system fan assembly  See    Replacing the hard  disk drive    on page 134     6  Remove the heat sink fan duct  See    Replacing the heat sink and fan assembly    on page 151     7  Record the cable routing and disconnect the system fan assembly cable from the power fan connector  on the system board  See    Locating parts on the system board    on page 79     8  The system fan assembly is attached to the chassis by four rubber mounts  Remove the system fan  a
73. e the front Wi Fi antenna  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127   4  Disconnect the front antenna cable from the Wi Fi card module     172  ThinkCentre E73 Hardware Maintenance Manual    5  Remove the front antenna and cable from the front of the computer        Figure 121  Removing the front WiFi antenna    What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replacement  on page 174     Replacing the keyboard or mouse    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the keyboard or mouse     To replace the keyboard or mouse  do the following   1  Disconnect the old keyboard cable or mouse cable from the computer     2  Connect a new keyboard or mouse to one of the USB connectors on the computer  Depending on  where you want to connect the new keyboard or mouse  see    Locating connectors  controls  and  indicators on the front of your computer    on page 74 or    Locating connectors on the rear of your  computer    on page 75     S    Figure 122  Connecting the USB keyboard o
74. e using the correct device driver     On the Windows 7 operating system  do the following     1   2   3     5     Click Start  gt  Control Panel   Click Hardware and Sound     Click Device Manager  If you are prompted for an administrator password or confirmation  type the  password or provide confirmation       If an exclamation mark is displayed next to an adapter name under Network adapters  you might    not be using the correct driver or the driver is not enabled  To update the driver  right click the  highlighted adapter     Click Update Driver Software  and then follow the instructions on the screen     On the Windows 8 operating system  do the following     1   2   3     5     Open Control Panel   Click Hardware and Sound     Click Device Manager  If you are prompted for an administrator password or confirmation  type the  password or provide confirmation       If an exclamation mark is displayed next to an adapter name under Network adapters  you might    not be using the correct driver or the driver is not enabled  To update the driver  right click the  highlighted adapter     Click Update Driver Software  and then follow the instructions on the screen       The switch port and the adapter have the same duplex setting     If you configured the adapter for full duplex  ensure that the switch port is also configured for full duplex   Setting the wrong duplex mode can degrade performance  cause data loss  or result in lost connections       You have installed all networ
75. e with the printer are correctly installed     2  You have assigned the printer port correctly in your operating system  application program  or BIOS  settings  For more information about BIOS settings  see Chapter 6    Using the Setup Utility program     on page 55     If the problem persists  run the tests described in the documentation that comes with your printer  If you  cannot correct the problem  have the computer serviced  See    Lenovo Support Web site    on page 32     Serial port problems    Use this information to troubleshoot the serial port and devices attached to the serial port   Symptom  Serial port cannot be accessed     Actions     e Make sure the serial cable is securely connected to the serial port on the computer and to the serial device   If the serial device has its own power cord  make sure it is attached to a properly grounded electrical outlet     e         serial device has its own On Off switch  make sure it is in the On position   e         serial device has an Online switch  make sure it is in the Online position   e  fthe serial device is a printer  make sure paper is loaded correctly     e Verify that any software supplied with the serial device is correctly installed  Refer to the documentation  for the serial device option       Make sure that the serial port adapter  if you added one  is properly installed and firmly seated     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53
76. ecessary device drivers for the application programs are installed  Refer to the  documentation for the affected application program to see if device drivers are required     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     The image appears to be flickering  Symptom  The image appears to be flickering     Actions     44 ThinkCentre E73 Hardware Maintenance Manual    e The monitor might be operating in a low refresh rate display mode  Set the monitor to the highest   noninterlaced refresh rate supported by your monitor and the video controller in your computer     Attention  Using a resolution or refresh rate that is not supported by your monitor might damage it  Check  the documentation that comes with your monitor to verify the supported refresh rates       The monitor might be affected by interference from nearby equipment  Magnetic fields around other  devices  such as transformers  appliances  fluorescent lights  and other monitors might be causing the  problem  Move fluorescent desk lighting or any equipment that produces magnetic fields farther away  from the monitor  If this does not correct the problem  do the following     1  Turn off the monitor   Moving a color monitor while it is turned on might cause screen discoloration      2  Adjust the placement of the monitor and other devices so that they are at
77. ected to a computer  this error message will  the reader that you set up within your main   be displayed to inform you to remove all of the  operating system  fingerprint keyboards except the one compatible    with the fingerprint application on your computer    1962 No operating system found  Press any key   This error occurs only after the POST is completed    to repeat boot sequence  Press any key to repeat boot sequence    0162 Setup data integrity check failure Press F1 to enter the Setup Utility program   Then press F10 to save and exit the Setup Utility  program    0167 No processor microcode update found This error message indicates that there is  no microcode update image for the current  microprocessor    0175 System Security   Security data corrupted   Press F1 to enter the Setup Utility program   Then press F10 to save and exit the Setup Utility  program     0176 System Security   The system has been This error message is displayed when the  tampered with computer is turned on with the cover open or  removed   Press F1 to enter the Setup Utility program   Then press F10 to save and exit the Setup Utility  program   0189 System Security   Can not read the This error message indicates that the Security  Security EEPROM EEPROM may be broken or removed   Press F1 to enter the Setup Utility program   Then press F10 to save and exit the Setup Utility  program     0197 System Security   Unauthorized security Press F1 to enter the Setup Utility program   data change detec
78. ed to help you determine where to  connect the cables on your computer                                                                                                                                                                                      MAA           rele    1  FSE SIC        N  E    SS  E                                                                    Figure 2  Rear connector locations    Power cord connector     DisplayPort connector  EJ VGA monitor connector  EX USB 3 0 connectors  H USB 2 0 connectors     Microphone connector    KA Audio line out connector    Connector    Audio line in connector    Audio line out connector    DisplayPort connector    Ethernet connector    E Audio line in connector   EZ PCI Express x16 graphics card slot  PCI Express x1 card slots  2   Security lock slot   Padlock loop   Optional serial port    Ethernet connector    Description    Used to receive audio signals from an external audio device  such as a stereo  system  When you attach an external audio device  a cable is connected between  the audio line out connector of the device and the audio line in connector of the  computer     Used to send audio signals from the computer to external devices  such as powered  stereo speakers  Speakers with built in amplifiers   headphones  multimedia  keyboards  or the audio line in connector on a stereo system or other external  recording device     Used to attach a high performance monitor  a direct drive monitor  or other devices  t
79. einstalling the computer cover    5  If there is a padlock available  lock the computer cover   6  If there is a Kensington style cable lock available  lock the computer     7  Reconnect the external cables and power cords to the computer  See    Locating connectors on the  rear of your computer    on page 68     8  To update your configuration  refer to Chapter 6    Using the Setup Utility program    on page 55     Note  In most areas of the world  Lenovo requires the return of the defective Field Replaceable Units  FRUS    Information about this will come with the new FRUS or will come a few days after you receive the new FRUs     Obtaining device drivers    You can obtain device drivers for operating systems that are not preinstalled at  http   www lenovo com support  Installation instructions are provided in readme files with the device driver  files     Chapter 9  Replacing FRUs  machine types  10  5 and 10AU  123    124  ThinkCentre E73 Hardware Maintenance Manual       Chapter 10  Replacing FRUs  machine types  10AU  10AW   10BF  and 10BG     This chapter provides information about the FRU replacement instructions  Not all FRUs are documented     Important  Ensure that you read and understand Chapter 2    Safety information    on page 3 before replacing  any FRU  These precautions and guidelines will help you work safely     Note  FRU replacements are to be done only by trained service technicians        Handling static sensitive devices    Do not open the static prote
80. em  See    Changing the BIOS settings before installing a new operating system    on page 59     Flash update procedures  This section details how to flash  update  the BIOS     O Copyright Lenovo 2013 177    Updating  flashing  the BIOS from a disc    This section provides instructions on how to update  flash  the BIOS from a disc on the Windows 8  64 bit   operating system and on other operating systems     Note  You can download a self starting bootable disc image  known as an ISO image  with the system  program updates to create a system program update disc  Go to http   www lenovo com support     To update  flash  the BIOS from a disc on the Windows 8  64 bit  operating system  do the following     1     10     11   12   13     Start the Setup Utility program  See    Starting the Setup Utility program    on page 55     2  From the Setup Utility program main menu  select Exit  gt  OS Optimized Default  gt  Disabled   3   4  Press F10 to save changes and exit the Setup Utility program  See    Exiting the Setup Utility program       Select Yes in the window displayed and press Enter to confirm your selection     on page 59       Repeatedly press and release F12 when turning on the computer  When the Startup Device Menu    window opens  release F12       From the Startup Device Menu window  select the desired optical drive as the startup device  Then     insert the disc into this optical drive and press Enter  The update begins       When prompted to change the serial number
81. em board part locations    on page 72 shows the locations of the parts on the system board                                                                             idi   m                                                                     non                                                                                                                                                                                                                      BE BE                                                                                                    e    5          Figure 4  System board part locations         4 pin power connector   E  Microprocessor   El Microprocessor fan connector  E Memory slot 1  DIMM1     El Memory slot 2  DIMM2       Thermal sensor connector   Power fan connector   El Hard disk drive  Optical drive power connectors  EZ 24 pin power connector   BIOS ROM        SATA 3 0 connectors   Power supply fan connector        SATA 2 0 connector    72  ThinkCentre E73 Hardware Maintenance Manual       mm       mm    Front panel connector  for connecting LED indicators and  the power switch     Front USB connector 1  for connecting USB ports 1 and 2  on the front bezel     Front USB connector 2  for connecting an additional USB  device     Ell Clear CMOS  Complementary Metal Oxide Semiconductor    Recovery jumper    Clear CMOS  Recovery jumper  Serial  COM2  connector   EN  Front audio connector        Internal speaker connector   FA PCI Express x1 card sl
82. ement  on page 174     Replacing the thermal sensor    Attention     Do not open your computer or attempt any repair before reading and understanding the    Important safety information     on page 1        This section provides instructions on how to replace the thermal sensor     To replace the thermal sensor  do the following     1  Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer       Remove the computer cover  See  Removing the computer cover  on page 126     Remove the front bezel  See  Removing and reinstalling the front bezel  on page 127     Locate the thermal sensor  See    Locating major FRUs and CRUs    on page 76       Pivot the drive bay assembly upward  See  Accessing the system board components and drives  on  page 128     6  Disconnect the thermal sensor cable from the thermal sensor connector on the system board     q A         154  ThinkCentre E73 Hardware Maintenance Manual    7  On the inner side of the front panel  press the left retaining clip Elj that secures the plastic holder of the  thermal sensor as shown and then push the clip out of the outer side of the front panel  Then  disengage  the plastic holder holding the thermal sensor from the chassis        Figure 99  Removing the thermal sensor    8  Pull the entire thermal sensor out of the chassis     Chapter 10  Replacing FRUs  machine types  1
83. emove any parts that might prevent your access to the memory slots  Depending on your computer  model  you might need to remove the PCI Express x16 graphics card for easier access to the memory  slots  See    Installing or replacing a PCI Express card    on page 85     6  Depending on whether you are installing or replacing a memory module  do one of the following     e  f you are replacing an old memory module  open the retaining clips and gently pull the memory  module out of the memory slot                          Figure 17  Removing a memory module       f you are installing a memory module  open the retaining clips of the memory slot into which you  want to install the memory module                          Figure 18  Opening the retaining clips    Chapter 9  Replacing FRUs  machine types  10AS and 10AU  89    7  Position the new memory module over the memory slot  Make sure that the notch      the memory  module aligns correctly with the slot key       the system board  Push the memory module straight  down into the slot until the retaining clips close                          Figure 19  Installing a memory module  8  Reinstall the PCI Express x16 graphics card if you have removed it     What to do next     To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Replacing the rear fan assembly    Attention   Do not open your computer or attempt a
84. er  a de litio  reempl  celo s  lo con el mismo tipo de m  dulo  del mismo fabricante  La bater  a  contiene litio y puede explotar si no se utiliza  manipula o desecha correctamente    No debe     e Arrojarla al agua    sumergirla en ella     Exponerla a temperaturas superiores    100  C  212  F   e Repararla o desmontarla    Desh  gase de la bater  a seg  n especifiquen las leyes o normas locales     A    PRECAUCI  N   Cuando haya productos l  ser  como unidades de CD ROM  unidades de DVD  dispositivos de fibra    ptica o transmisores  instalados  tenga en cuenta lo siguiente        No quite las cubiertas  Si quita las cubiertas del producto l  ser  podr  a quedar expuesto a radiaci  n  l  ser peligrosa  Dentro del dispositivo no existe ninguna pieza que requiera servicio t  cnico     e Si usa controles o ajustes o realiza procedimientos que no sean los especificados aqu    podr  a  exponerse a radiaciones peligrosas     A    PELIGRO    26  ThinkCentre E73 Hardware Maintenance Manual    Algunos productos l  ser tienen incorporado un diodo l  ser de clase 3A o clase 3B  Tenga en cuenta lo  siguiente     Cuando se abre  queda expuesto a radiaci  n l  ser  No mire directamente al rayo l  ser  ni siquiera con  instrumentos   pticos  y evite exponerse directamente al rayo l  ser     A            gt 18 kg  gt 32 kg  gt 55 kg       PRECAUCI  N     Adopte procedimientos seguros al levantar el equipo     AA    PRECAUCI  N     El bot  n de control de alimentaci  n del dispositivo y e
85. es    on page 73     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  93    Note  There is also a secondary hard disk drive bay for you to purchase and install a secondary hard  disk drive by yourself  If you want to install a secondary hard disk drive  use the same way of installing    the primary hard disk drive   4  Disconnect the signal cable and the power cable from the hard disk drive   5  Remove the four screws that secure the hard disk drive  Then  slide the hard disk drive out of the chassis        N  d                                                         Figure 24  Removing the primary hard disk drive    94 ThinkCentre E73 Hardware Maintenance Manual    6  Slide the new hard disk drive into the hard disk drive bay and align the screw holes in the new hard  disk drive with the corresponding holes in the drive bay  Then  install the four screws to secure the  new hard disk drive in place     EN    AN    E        gt      2  WNT    NY                                                 Figure 25  Installing the hard disk drive    7  Connect one end of the signal cable to the rear of the new hard disk drive and the other end to an  available SATA connector on the system board  See    Locating parts on the system board    on page 72   Then  locate an available five wire power connector and connect it to the rear of the new hard disk drive        Figure 26  Connecting a SATA hard disk drive    What to do next   e To work with another piece of hardware  go to the app
86. ew part until the defective part has been removed  from the computer and you are ready to install the new part  Static electricity  although harmless to you  can  seriously damage computer components and parts     When you handle computer parts and components  take these precautions to avoid static electricity damage     e Limit your movement  Movement can cause static electricity to build up around you       Always carefully handle the parts and other computer components  Handle PCI cards  memory modules   system boards  and microprocessors by the edges  Never touch exposed circuitry       Prevent others from touching the parts and other computer components       Before you replace a new part  touch the static protective package containing the new part to a metal  expansion slot cover or other unpainted metal surface on the computer for at least two seconds  This  reduces static electricity from the package and your body        Remove the new part from the static protective package and directly install it in the computer without  placing it on any other surface  If it is hard for you to do this in your specific situation  place the  static  protective package of the new part on a smooth  level surface  and then place the new part on  the static protective package       Do not place the part on the computer cover or other metal surface        Installing or replacing hardware    This section provides instructions on how to install or replace hardware for your computer  You can
87. f hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 174     Replacing the slim card reader    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the slim card reader     Note  The slim card reader is only available in some models     To replace the slim card reader  do the following     1  Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer     2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127     4  Record the cable routing of the installed slim card reader and disconnect the cable of the slim card  reader from the system board     5  Remove the screw that secures the slim card reader bracket and then remove the bracket from the  chassis     140  ThinkCentre E73 Hardware Maintenance Manual       Figure 81  Removing the slim card reader bracket    6  Remove the two screws that secure the card reader to the bracket  Then  slide the card reader as  shown to remove it from the bracket     Note  Touch only the edges of the card reader  Do not touch the circuit board of it
88. fore reading and understanding the    Important safety information  on page 1        This section provides instructions on how to install or remove the rear Wi Fi antenna     Installing the rear Wi Fi antenna  To install the rear Wi Fi antenna  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets     2  Install the rear Wi Fi antenna to the rear Wi Fi antenna cable connector attached on the rear of the  computer     3  Adjust the angle of the rear antenna to lower the risk of breaking the antenna by accident                    KEEL                               Figure 53  Installing the rear WiFi antenna    What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replacement  on page 122     Removing the rear Wi Fi antenna   To remove the rear Wi Fi antenna  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Straighten the rear Wi Fi antenna so that it can be more easily twisted     118  ThinkCentre E73 Hardware Maintenance Manual    3  Hold the thicker end of the rear Wi Fi antenna and unscrew the Wi Fi antenna from the rear of the  computer                           CEA                       Figure 54  Removing the rear WiFi antenna    What to do next   e To work with another piece of hardware  go to the appropriate section     To complete the installation or replace
89. g and diagnostics 37    No audio in Windows  Symptom  No audio in Windows    Actions     e  f you are using powered external speakers that have an On Off control  verify that the On Off control is  set to the On position and the speaker power cable is connected to a properly grounded  functional       electrical outlet     e  f your external speakers have a volume control  verify that the volume control is not set too low        Double click the speaker icon in the Windows notification area  A master volume control window opens   Verify that the Mute settings are not checked and none of the volume settings is set too low        Verify that your external speakers  and headphones  if used  are connected to the correct audio connector  on the computer  Most speaker cables are color coded to match the connector     Note  When external speaker or headphone cables are attached to the audio connector  the internal  speaker  if present  is disabled  In most cases  if an audio adapter is installed in one of the expansion slots   the audio function built into the system board      disabled  use the audio jacks on the adapter                 sure that the program you are running is designed for use in the Microsoft  Windows operating  system  If the program is designed to run in DOS  the program does not use the Windows sound feature  and must be configured to use SoundBlaster Pro or SoundBlaster emulation     e Verify that the audio device drivers are correctly installed  See Microsoft
90. graphical errors  Changes are periodically  made to the information herein  these changes will be incorporated in new editions of the publication   Lenovo may make improvements and or changes in the product s  and or the program s  described in this  publication at any time without notice     The products described in this document are not intended for use in implantation or other life support  applications where malfunction may result in injury or death to persons  The information contained in this  document does not affect or change Lenovo product specifications or warranties  Nothing in this document  shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo  or third parties  All information contained in this document was obtained in specific environments and is  presented as an illustration  The result obtained in other operating environments may vary     Lenovo may use or distribute any of the information you supply in any way it believes appropriate without  incurring any obligation to you     Any references in this publication to non Lenovo Web sites are provided for convenience only and do not in  any manner serve as an endorsement of those Web sites  The materials at those Web sites are not part of  the materials for this Lenovo product  and use of those Web sites is at your own risk     Any performance data contained herein was determined in a controlled environment  Therefore  the result  obtained in other operati
91. hand only to connect or disconnect signal cables      Never turn on any equipment when there is evidence of fire  water  or structural damage       Disconnect the attached power cords  telecommunications systems  networks  and modems  before you open the device covers  unless instructed otherwise in the installation and configuration  procedures       Connect and disconnect cables as described in the following tables when installing  moving  or  opening covers on this product or attached devices       Turn everything OFF    Turn everything OFF     First  attach all cables to devices    First  remove power cords from outlet     Attach signal cables to connectors    Remove signal cables from connectors       Attach power cords to outlet    Remove all cables from devices     Turn device ON        CAUTION    When replacing the lithium battery  use only Part Number 45C1566 or an equivalent type battery  recommended by the manufacturer  If your system has a module containing a lithium battery  replace  it only with the same module type made by the same manufacturer  The battery contains lithium and  can explode if not properly used  handled  or disposed of  Do not       Throw or immerse into water     Heat to more than 100 C  212  F     Repair or disassemble    Chapter 2  Safety information 7    Dispose of the battery as required by local ordinances or regulations     A    CAUTION   When laser products  such as CD ROMs  DVD ROM drives  fiber optic devices  or transmitters  are  ins
92. hat the cover is seated securely   4  Follow any additional instructions included with the replacement part you received     Replacing the front audio and USB assembly    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the front audio and USB assembly     To replace the front audio and USB assembly  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets     Remove the computer cover  See    Removing the computer cover    on page 82     Remove the front bezel  See    Removing and reinstalling the front bezel    on page 83     Locate the front audio and USB assembly       Disconnect the front audio and USB assembly cables from the system board  See    Locating parts on  the system board    on page 72     aR         Note  Ensure that you note the locations of the cables when you disconnect the cables from the  system board     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  111    6  Remove the screw that secures the front audio and USB assembly bracket to the chassis to remove  the bracket from the chassis                         SOS      SIIIIIIIIIS    ESS  SSSR ESS    SOIION                                  e H    OOOO S v  a       x  OX  OS  OS  ISS  SS  ON  NN    SS  SS       Figure 44  Removing the front audio and USB assembly    7  Install the new front audio and USB as
93. hat use a DisplayPort connector     Used to attach an Ethernet cable for a local area network  LAN      Note  To operate the computer within FCC Class B limits  use a Category 5 Ethernet  cable     68 ThinkCentre E73 Hardware Maintenance Manual    Connector Description    Microphone connector Used to attach a microphone to your computer when you want to record sound or if  you use speech recognition software     USB 2 0 connector Used to attach a device that requires a USB 2 0 connection  such as a keyboard  a  mouse  a scanner  a printer  or a personal digital assistant  PDA      USB 3 0 connector Used to attach a device that requires a USB 2 0 or 3 0 connection  such as a  keyboard  a mouse  a scanner  a printer  or a personal digital assistant  PDA   A  USB 3 0 connector provides high transmission speeds to reduce the time that is  required for data transmission     VGA monitor connector Used to attach a VGA monitor or other devices that use a VGA monitor connector   Locating major FRUs and CRUs    Figure 3    Component locations    on page 70 shows the locations of the various components in your  computer  To remove the computer cover  see    Removing the computer cover    on page 82     Chapter 8  Locations 69                                              777777777772           Figure 3  Component locations    The following table lists the major FRUs shown in Figure 3    Component locations    on page 70 and identifies  which FRUs also are self service CRUs or optional se
94. he mouse    on page 43  e           wireless keyboard does not work    on page 43    All or some keys on the keyboard do not work  Symptom  All or some keys on the keyboard do not work     Actions     e Verify that the keyboard cable is securely connected to the correct connector on the computer     e If you are using an Enhanced Performance USB keyboard and one or more of the Rapid Access buttons  are the only keys that are not working  these buttons might have been disabled or have not been assigned  to a function  Use the help system in the Enhanced Performance Customization Keyboard program to  help diagnose problems with the Rapid Access buttons     To open the Enhanced Performance Customization Keyboard program  do one of the following     On the Windows 7 operating system  do the following    1  Click Start  gt  Control Panel    2  Click Hardware and Sound   3  Click Devices and Printers   4      Double click USB Enhanced Performance Keyboard  The USB Enhanced Performance  Keyboard Customization program starts       On the Windows 8 operating system  do the following   1  Open Control Panel   2  Click Hardware and Sound   3  Click Devices and Printers   4      Double click USB Enhanced Performance Keyboard  The USB Enhanced Performance  Keyboard Customization program starts     42  ThinkCentre E73 Hardware Maintenance Manual    If these actions do not correct the problem  have the computer and keyboard serviced  See    Lenovo  Support Web site    on page 32 for details
95. he system board   See    Locating parts on the system board    on page 79     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 1080  159    9     10     11     12     13     14     15     16     Remove the eight screws that secure the system board                                                                                                                                                                 nn                                                                                                                                                                                                                                                                  a                            Figure 104  Removing the screws that secure the system board    Slide the system board to the front of the computer and then carefully lift the system board out of the  chassis  Place the failing system board on a flat  clean  and static protective surface     Remove the microprocessor from the failing system board and install it on the new system board  See     Replacing the microprocessor    on page 156     Install the new system board into the chassis by aligning the eight screw holes in the new system  board with the corresponding mounting studs on the chassis  Then  install the eight screws to secure  the system board     Install the heat sink and fan assembly and connect the heat sink and fan assembly cable to the new  system board  See    Replacing the heat sink and fan
96. he troubleshooting information     1  Remove the new hardware option or software  If you must remove the computer cover to remove     hardware option  make sure you review and follow the electrical safety information provided with your  computer  For your safety  do not operate the computer with the cover removed     2  Run the diagnostic programs to ensure your computer is operating correctly   3  Reinstall the new hardware option or software following the manufacturer s instructions     Select the problem your computer is experiencing from the following list   e    Audio problems    on page 37   e  CD problems  on page 39   e  DVD problems    on page 40   e    Intermittent problems    on page 41   e    Hard disk drive problems  on page 41   e  Keyboard  mouse  or pointing device problems  on page 42  e    Monitor problems  on page 44   e    Networking problems    on page 45   e  Option problems    on page 48   e    Performance and lockup problems    on page 49   e    Printer problems    on page 50   e  Serial port problems    on page 51   e    Software problems    on page 51   e  USB problems    on page 52    Audio problems  Select your symptom from the following list     e    No audio in Windows    on page 38    e    An audio disc or AutoPlay enabled disc does not automatically play when it is inserted into a drive   on page 38    e  Sound comes from one external speaker only    on page 38  e    No audio in DOS applications or games  on page 38    Chapter 5  Troubleshootin
97. her components        Figure 63  Pivoting the drive bay assembly upward    5  To lower the drive bay assembly  press the drive bay assembly clip El inward and pivot the drive bay  assembly downward as shown        Figure 64  Lowering the drive bay assembly    Installing or replacing a PCI Express card    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to install or replace a PCI card  Your computer has two PCI  Express x1 card slots and one PCI Express x16 graphics card slot     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  129    To install or replace a PCI Express card  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126     3  Depending on whether you are installing or replacing a PCI Express card  do one of the following     e If you are installing a PCI Express card  remove the screw that secures the appropriate metal slot    cover  Then  remove the metal slot cover     e  f you are replacing an old PCI Express card  remove the screw that secures the old PCI Express    card  grasp the old card that is currently installed  and gently pull it out of the slot             I           m i 2  d       Figure 65  Removing a PCI Express card    Notes     a  The card fits tightly into the c
98. i units     Installing or removing the rear Wi Fi  antenna    Installing or removing the front wi  Fi  antenna    Replacing the lesi or mouse    Completing the parts replacement      Chapter 10  Replacing FRUs   machine peres 10AU  10AW  10BF   and 10BG    Handling static sensitive des  Installing or replacing hardware    Installing external options  Removing the computer cover  E  Removing and reinstalling the front bezel  Accessing the system board components and  drives ri eli a otis a de    ii ThinkCentre E73 Hardware Maintenance Manual    74    75  76  78  79  80    81  81  81  81  82  83  85  88  90  92  93  95  96  98   101   102   104   106   109    111  112    118    119  121  122    125    125  125  125  126  127    128    Installing or replacing a PCI Express card    Installing or replacing a memory module   Replacing the battery       Replacing the hard disk drive     Replacing the optical drive     Replacing the slim card reader   Replacing the solid state drive   Replacing the power supply assembly  Replacing the heat sink and fan assembly    Replacing the thermal sensor     Replacing the microprocessor     Replacing the system board   Replacing the system fan assembly    Replacing the front audio and USB  assembly   DU dre    Replacing the Wi Fi units     Installing or removing the rear Wi Fi  antenna    Installing or removing ifie  iront Wi  Fi  antenna    Replacing the keyboard or mouse    Completing the parts replacement      Chapter 11  Additional service  
99. ier access to the battery  See    Installing or replacing a PCI Express card    on page 85     4  Remove the old battery                                               Figure 22  Removing the old battery    5  Install a new battery                                               Figure 23  Installing a new battery    6  Reinstall the PCI Express x 16 graphics card if you had removed it  See    Installing or replacing a PCI  Express card    on page 85     7  Reinstall the computer cover and connect the cables  See    Completing the parts replacement    on  page 122     Note  When the computer is turned on for the first time after replacing the battery  an error message  might be displayed  This is normal after replacing the battery    8  Turn on the computer and all attached devices    9  Use the Setup Utility program to set the date  time  and any passwords  See Chapter 6    Using the Setup    Utility program    on page 55   Replacing the primary hard disk drive    Attention   Do not open your computer or attempt any repair before reading and understanding    Important safety information       on page 1        This section provides instructions on how to replace the primary hard disk drive     To replace the primary hard disk drive  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82   3  Locate the primary hard disk drive  See    Locating internal driv
100. igure 67  Opening the retaining clips    132  ThinkCentre E73 Hardware Maintenance Manual    9  Position the new memory module over the memory slot  Make sure that the notch Ell on the memory  module aligns correctly with the slot key Ell on the system board  Push the memory module straight  down into the slot until the retaining clips close                          Figure 68  Installing a memory module  10  Reinstall the PCI Express x16 graphics card if you have removed it     What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replacement  on page 174     Replacing the battery    Attention   Do not open your computer or attempt any repair before reading and understanding  Important safety information     on page 1        Your computer has a special type of memory that maintains the date  time  and settings for built in features   such as parallel port assignments  configuration   A battery keeps this information active when you turn  off the computer     The battery normally requires no charging or maintenance throughout its life  however  no battery lasts  forever  If the battery fails  the date  time  and configuration information  including passwords  are lost  An  error message is displayed when you turn on the computer     Refer to the  Lithium battery notice  in the ThinkCentre Safety and Warranty Guide for information about  replacing and disposing of 
101. ine types  10AS and 10AU  83    3  Remove the front bezel by releasing the three plastic tabs on the left side and pivoting the front bezel  outward                00000000004  000000800   70000000800 0                                           d             Figure 12  Removing the front bezel    84  ThinkCentre E73 Hardware Maintenance Manual    4  To reinstall the front bezel  align the three plastic tabs on the right side of the front bezel with the  corresponding holes in the chassis  then pivot the front bezel inwards until it snaps into position on  the left side                                   17777777                                Figure 13  Reinstalling the front bezel    What to do next   e To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Installing or replacing a PCI Express card    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to install or replace a PCI Express card  Your computer has two  PCI Express x1 card slots and one PCI Express x16 graphics card slot     To install or replace a PCI Express card  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82     Chapter
102. information    Security features    Hardware controlled             Operating system password  Vital Product Data  BIOS levels      Flash update procedures  Updating  flashing  the BIOS om a dise     Updating  flashing  the BIOS from your  operating system      Recovering from a POST and BIOS update  failure    Power ORRA    Advanced configuration and power interface   ACPI  BIOS         Automatic Power on features      Appendix A  Notices   Television output notice    European conformance CE mark  Trademarks      Index     129  131  133  134  136  140  143  147  151  154  156  159  161    163  165    169    171  173  174    177  177  177  177  177  177  177  178    179    179  180    180  180    181  182  182  182    183       Chapter 1  About this manual    This manual provides service and reference information for ThinkCentre   computers listed on the front cover   This manual is intended only for trained service personnel who are familiar with Lenovo  computer products     Before servicing a Lenovo computer product  be sure to read Chapter 2  Safety information  on page 3     Chapter 7    Symptom to FRU index    on page 61 and Chapter 11  Additional service information    on page  177 are not specific to any machine type  These chapters are applicable to all ThinkCentre computers     For major FRU locations and Customer Replaceable Unit  CRU  identification  see Chapter 8  Locations   on page 67     For FRU replacement instructions  see Chapter 9  Replacing FRUs  machine 
103. ing 83  127  front Wi Fi antenna  installing  removing 119  171  FRU locations 69  76  FRU part numbers 1  67  71  78    H    hard disk drive  replacing 93  134  hardware  installing or replacing  desktop computers  device drivers  obtaining 175  external options 125  tower computers  device drivers  obtaining 123  external options 81  heat sink        fan assembly  replacing 102  151    Identifying FRUs 69  76  installing  operating system 59  solid state drive 95  installing options  memory module 88  131  PCI Express card 85  129    K    keyboard  replacing 121  173    L    Lenovo Solution Center 53  locating components 69  76  looking up part numbers 1  67  71  78    memory module  installing  replacing 88  131    183    system board 88  131  Microphone connector 69  76  microprocessor   replacing 106  156  mouse  replacing 121  173    O    optical drive  replacing 96  136  Optional service CRUs 69 76    P    part numbers 1  67  71  78  parts replacement  completing 122  174  password   Administrator 56   considerations 56   Power On Password 56   setting  changing  deleting 56  passwords   erasing 57   lost or forgotten 57  passwords  using 55  PCI Express card 85  129   installing  replacing 85  129   slots 85  129  power supply assembly  replacing 101  147  Power On  Password 56    R    rear connectors 68  75  rear fan assembly  replacing 90  rear Wi Fi antenna  installing  removing 118  169  recovering  from a POST and BIOS update failure 179  recovery  Boot block Rec
104. ion and power interface  ACPI  BIOS    Being an ACPI BIOS system  the operating system is allowed to control the power management features  of the computer and the setting for Advanced Power Management  APM  BIOS mode is ignored  Not  all operating systems support ACPI BIOS mode     Automatic Power on features    The Automatic Power On features within the Power Management menu allow you to enable and disable  features that turn on the computer automatically     e Wake Up on Alarm  You can specify a date and time at which the computer will be turned on  automatically  This can be either a single event or a daily event     e Wake on LAN  If the computer has a properly configured token ring or Ethernet LAN adapter card that is  Wake on LAN enabled and there is remote network management software  you can use the Wake on LAN  feature  When you set Wake on LAN to Enabled  the computer will turn on when it receives a specific  signal from another computer on the local area network  LAN      To enable the Wake on LAN function or the Wake Up on Alarm function on the Windows 8 operating system   do the following     1  Open Control Panel    2  Click Hardware and Sound  gt  Power Options    3  In the left panel  click Choose what the power buttons do   4  In the Shutdown setting section  clear Turn on fast startup     Note  If the settings are unavailable  click Change settings that are currently unavailable   5  Click Save changes     180 ThinkCentre E73 Hardware Maintenance Manual    
105. ions     Chapter 8  Locations 73    Locating connectors  controls  and indicators on the front of your  computer    Figure 6    Front connector  control  and indicator locations    on page 74 shows the locations of the  connectors  controls  and indicators on the front of your computer      gt     E     gt   El                                    N 9o  5          5 1  5  Figure 6  Front connector  control         indicator locations  Optical drive eject close button      USB 2 0 connector  USB port 2   B Power switch    Microphone connector  KE  Hard disk drive activity indicator Headphone connector  El Power indicator      USB 2 0 connector  USB port 1     74  ThinkCentre E73 Hardware Maintenance Manual    Locating connectors on the rear of your computer    Figure 7    Rear connector locatio  computer  Some connectors on    ns    on page 75 shows the locations of the connectors on the rear of your  the rear of your computer are color coded to help you determine where to    connect the cables on your computer              lal                   Edo                Q   es         Og       Reese   3980898909858  OO  2020202080208  AUS          O  So          96    O                                                 MEA       n  of  can                            e    262       L                                                                  N             Km ls                            Figure 7  Rear connector locations    Power cord connector  E DisplayPort connector  EJ VGA mon
106. isc you are using is clean  To remove dust or fingerprints  wipe the disc clean with a  Soft cloth from the center to the outside  Wiping a disc in a circular motion might cause loss of data       Verify that the disc you are using is not scratched or damaged  Try inserting another disc that you know  is good  If you cannot read from a known good disc  you might have a problem with your CD or DVD  drive or the cabling to your CD or DVD drive  Make sure that the power cable and signal cable are  securely connected to the drive     Unable to use a startable  bootable  recovery medium  such as the Product Recovery  CD  to start your computer    Symptom  Unable to use a startable  bootable  recovery medium  such as the Product Recovery CD   to start your computer     Action  Make sure that the CD or DVD drive is in the startup sequence before the hard disk drive  Refer   to your    Selecting or changing the startup device sequence  on page 58 for information on viewing and   changing the startup sequence  Note that on some models the startup sequence is permanently set and  cannot be changed     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     Chapter 5  Troubleshooting and diagnostics 39    DVD problems    Select your symptom from the following list    e    Black screen instead of DVD video    on page 40   e    DVD mo
107. itor connector     USB 3 0 connectors       USB 2 0 connectors     Microphone connector       Audio line out connector    Connector    Audio line in connector    Audio line out connector    DisplayPort connector         Audio line in connector   EJ PCI Express x16 graphics card slot  PCI Express x1 card slots  2   Ethernet connector   Security lock slot   Padlock loop    Description    Used to receive audio signals from an external audio device  such as a stereo  system  When you attach an external audio device  a cable is connected between  the audio line out connector of the device and the audio line in connector of the  computer     Used to send audio signals from the computer to external devices  such as powered  stereo speakers  speakers with built in amplifiers   headphones  multimedia  keyboards  or the audio line in connector on a stereo system or other external  recording device     Used to attach a high performance monitor  a direct drive monitor  or other devices  that use a DisplayPort connector     Chapter 8  Locations 75    Connector    Ethernet connector    Microphone connector    USB 2 0 connector    USB 3 0 connector    VGA monitor connector    Description    Used to attach an Ethernet cable for a local area network  LAN    Note  To operate the computer within FCC Class B limits  use a Category 5 Ethernet  cable     Used to attach a microphone to your computer when you want to record sound or if  you use speech recognition software     Used to attach a device
108. ive Cable  4  System Board  5  Power Supply    RPL computer cannot access programs from its own hard 1  If network administrator is using LCCM Hybrid RPL   disk  check startup sequence     a  First device   network  b  Second device   hard disk  2  Hard disk drive    RPL computer does not RPL from server 1  Check startup sequence  2  Check the network adapter LED status    Serial or parallel port device failure  system board port  1  External Device Self Test OK   2  External Device  3  Cable  4  System Board  Serial or parallel port device failure  adapter port  1  External Device Self Test OK   2  External Device  3  Cable  4  Alternate Adapter  5  System Board  Some or all keys on the keyboard do not work 1  Keyboard  2  Keyboard Cable  3  System Board          Undetermined problems    If you encounter undetermined problems  do the following   1  Turn off the computer and the power   2  Remove or disconnect the following components  if installed  one at a time   a  External devices  modem  printer  or mouse   b  Any adapter cards      Memory modules    Chapter 7  Symptom to FRU index 65      Extended video memory    External Cache RAM    Hard disk drive  h  Diskette drive  3  Turn on the power and the computer to re test the system     d  e  External Cache  f  9    4  Repeat steps 1 through 3 until you find the failing device or adapter cards   If all devices and adapter cards    have been removed  and the problem continues  replace the system board  See    Replacing the s
109. king software that is necessary for your network environment     Check with your LAN administrator for the necessary networking software     The adapter stops working for no apparent reason  Symptom  The adapter stops working for no apparent reason     Action  The network driver files may be corrupt or missing  Update the driver by referring to the  Solution   description for the procedure to make sure that the correct device driver is installed     46  ThinkCentre E73 Hardware Maintenance Manual    The Wake on LAN feature is not working  Symptom  The Wake on LAN  WOL  feature is not working     Actions       Make sure that WOL is enabled in the BIOS Setup Utility program       Ifitis  check with your LAN administrator for the necessary settings    If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps  the connection    fails or errors occur    Symptom  If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps  the connection  fails or errors occur     Actions     Use Category 5 wiring and make sure that the network cable is securely connected     Connect to    1000 BASE T hub switch  not 1000 BASE X      If your computer is a Gigabit Ethernet model  it cannot connect to the network at 1000 Mbps  Instead   it connects at 100 Mbps    Symptom  If your computer is a Gigabit Ethernet model  it cannot connect to the network at 1000 Mbps   Instead  it connects at 100 Mbps     Actions    e Try another cable      Make sure that the link par
110. l interruptor de alimentaci  n de la fuente de  alimentaci  n no desconectan la corriente el  ctrica suministrada al dispositivo  Adem  s  el dispositivo  podr  a tener m  s de un cable de alimentaci  n  Para suprimir toda la corriente el  ctrica del dispositivo   aseg  rese de que todos los cables de alimentaci  n est  n desconectados de la toma de corriente     AA    2U     10           Chapter 2  Safety information 27    28  ThinkCentre E73 Hardware Maintenance Manual       Chapter 3  General information    This chapter provides general information that applies to all machine types supported by this manual        Specifications    This section lists the physical specifications for your computer     For machine types  10AS and 10AV  Dimensions  Width  160 mm  6 3 inches   Height  396 5 mm  15 6 inches   Depth  399 6 mm  15 7 inches   Weight  Maximum configuration as shipped  7 5 kg  16 5 Ib   without package     Maximum configuration as shipped  10 5 kg  23 1 Ib   with package     Environment  e Air temperature   Operating  10  C to 35  C  50 F to 95  F   Storage in original shipping package   40  C to 60  C   40 F to 140 F   Storage without package   10  C to 60  C  14 F to 140 F   without package     Humidity   Operating  2096 to 8096  non condensing   Non operating  2096 to 9096  non condensing   e Altitude   Operating   15 2 to 3 048 m   50 to 10 000 ft   Non operating   15 2 to 10 668 m   50 to 35 000 ft   Electrical input     nput voltage     Low range   Minimum  100 
111. lenovo    ThinkCentre E73  Hardware Maintenance Manual       Thnktentre NR    Machine Types  10AS  10AV  10AU  10AW  10BF  and 10BG       Note  Before using this information and the product it supports  be sure to read and understand Chapter 2     Safety information    on page 3 and Appendix A    Notices    on page 181     First Edition  September 2013   O Copyright Lenovo 2013     LIMITED AND RESTRICTED RIGHTS NOTICE  If data or software is delivered pursuant a General Services Administration     GSA    contract  use  reproduction  or disclosure is subject to restrictions set forth in Contract No  GS 35F 05925     Contents    Chapter 1  About this manual      Important safety information      Chapter 2  Safety information   General safety     Electrical safety     Voltage selection switch     Safety inspection guide      Handling electrostatic              sensitive  devices    Grounding A       Safety notices  multi lingual fareations     Chapter 3  General information     Specifications      For machine types  1046 End 10AV    For machine eer 10AU  10AW  10BF  and  10BG        Lenovo programs    Accessing Lenovo programs on s Windows    7 operating system      Accessing Lenovo programs on une Windows    8 operating system    Lenovo Support Web site    Chapter 4  General checkout    Problem determination tips     Chapter 5  US and  diagnostics    Basic troubleshooting      Accessing Control Panel on the Windows  8  operating system     Troubleshooting procedure    Troublesh
112. les d interface des connecteurs     n    3  Branchez les c  bles d interface sur des connecteurs  B  brenehez tous les c  bles des unit  s     4  Branchez les cordons d alimentation sur des prises   5  Mettez les unit  s SOUS TENSION     A    ATTENTION        Remplacer la pile au lithium usag  e par une pile de r  f  rence identique exclusivement   r  f  rence  45  1566   ou suivre les instructions du fabricant qui en d  finit les   quivalences  Si votre syst  me est  dot   d un module contenant une pile au lithium  vous devez le remplacer uniquement par un module  identique  produit par le m  me fabricant  La pile contient du lithium et peut exploser en cas de  mauvaise utilisation  de mauvaise manipulation ou de mise au rebut inappropri  e     Ne pas        Ja jeter    l eau   e                     des temp  ratures sup  rieures    100  C     chercher    la r  parer ou    la d  monter     Ne pas mettre la pile    la poubelle  Pour la mise au rebut  se reporter    la r  glementation en vigueur     16  ThinkCentre E73 Hardware Maintenance Manual    A    ATTENTION     Si des produits    laser  tels que des unit  s de CD ROM  de DVD ROM  des unit  s    fibres optiques  ou  des   metteurs  sont install  s  prenez connaissance des informations suivantes        Neretirez pas le carter  En ouvrant l unit   de CD ROM ou de DVD ROM  vous vous exposez au  rayonnement dangereux du laser  Aucune piece de l unit   n est r  parable       Pour   viter tout risque d exposition au rayon lase
113. let  If an electrical  accident occurs  you can then operate the switch or unplug the power cord quickly        Do not work alone under hazardous conditions or near equipment that has hazardous voltages   e Disconnect all power before      Performing a mechanical inspection     Working near power supplies     Removing or installing Field Replaceable Units  FRU     e Before you start to work on the machine  unplug the power cord  If you cannot unplug it  ask the customer  to power off the wall box that supplies power to the machine and to lock the wall box in the off position     e  f you need to work on a machine that has exposed electrical circuits  observe the following precautions         Ensure that another person  familiar with the power off controls  is near you   Remember  Another person must be there to switch off the power  if necessary       Use only one hand when working with powered on electrical equipment  keep the other hand in your  pocket or behind your back   Remember  There must be a complete circuit to cause an electric shock  By observing the above  rule  you may prevent a current from passing through your body         When using a tester  set the controls correctly and use the approved probe leads and accessories for  that tester         Stand on suitable rubber mats  obtained locally  if necessary  to insulate you from grounds such as  metal floor strips and machine frames     Observe the special safety precautions when you work with very high voltages  
114. m    on page 55   2  From the Setup Utility program main menu  select Startup     3  Select the devices for the Primary Startup Sequence  the Automatic Startup Sequence  and the Error  Startup Sequence  Read the information displayed on the right side of the screen     4  Press F10 to save and exit the Setup Utility program  See    Exiting the Setup Utility program    on page 59        Enabling ErP compliance mode    You can enable the energy related products directive  ErP  compliance mode through the Power menu in the  Setup Utility program to reduce the consumption of electricity when your computer is in standby or off mode     To enable ErP compliance mode in the Setup Utility program  do the following   1  Start the Setup Utility program  See    Starting the Setup Utility program    on page 55     2  From the Setup Utility program main menu  select Power  gt  Enhanced Power Saving Mode  and  press Enter       Select Enabled and press Enter      From the Power menu  select Automatic Power On and press Enter     Select Wake on Lan and press Enter      Select Disabled and press Enter     NO 0 AS         Press F10 to save changes and exit the Setup Utility program  Press Enter when prompted to confirm  the exit    Note  When ErP compliance mode is enabled  you can wake up your computer by doing one of the following    e Pressing the power switch   e Enabling the wake up on alarm feature    The wake up on alarm feature enables your computer to wake up at a set time  To enable
115. m  the operating  system  or both  For the explanation of these messages  refer to the information supplied with that software  package     Before replacing a FRU  ensure that the latest level of BIOS is installed on the system  A down level BIOS  might cause false errors and unnecessary replacement of the system board  For more information on how to  determine and obtain the latest level BIOS  see    BIOS levels    on page 177     Use the following procedure to help determine the cause of a problem   1  Power off the computer and all external devices      Check all cables and power cords      Set all display controls to the middle position      Power on all external devices     af WwW         Power on the computer   e Look for displayed error codes  e Listen for beep codes  e Look for readable instructions or a main menu on the display   If you did not receive the correct response  proceed to step 6     If you do receive the correct response  proceed to step 7   6  Look at the following conditions and follow the instructions   e If you hear beep codes during POST  go to    Beep symptoms    on page 61   e  f the computer displays a POST error  go to    POST error codes    on page 62     e    the computer hangs and no error is displayed  tum off the computer and the power  Then  turn the  power and the computer back on  continue at step 7     7  Run the Diagnostic programs  See    Diagnostics    on page 53   e  f you receive an error  replace the part that the diagnostic progr
116. mbly    on page 151   Note  Place the heat sink and fan assembly on its side so that the thermal grease on the bottom of it  does not get in contact with anything     4  Locate the system board and disconnect all cables connected to the system board  See    Locating  parts on the system board    on page 79     5  Lift the small handle        open the retainer    to access the microprocessor EL                                                       A                                                                                                                                     nn                                                                                                                                                                                                                                                                                                       Figure 101  Accessing the microprocessor    6  Lift the microprocessor straight up and out of the microprocessor socket        Figure 102  Removing the microprocessor    Notes   a  Your microprocessor and socket might look different from the one illustrated     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  157    b  Note the orientation of the microprocessor in the socket  You can either look for the small triangle  on one corner of the microprocessor or note the orientation of the notches EX on the microprocessor   This is important when installing the new microprocessor on the system 
117. ment  go to    Completing the parts replacement    on page 122     Installing or removing the front Wi Fi antenna    Attention   Do not open your computer or attempt any repair before reading and understanding the    Important safety information       on page 1        This section provides instructions on how to install or remove the front Wi Fi antenna     Installing the front Wi Fi antenna  To install the front Wi Fi antenna  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 83   4  Peel off the paper that protects the stickers on the front antenna     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  119    Figure 55  Peeling off the paper that protects the stickers    5  Stick the front antenna to the front panel as shown  Then insert the front antenna cable through the  hole in the front panel          es                                     Figure 56  Installing the front Wi Fi antenna  6  Connect the front antenna cable to the Wi Fi card module     What to do next     To work with another piece of hardware  go to the appropriate section     120  ThinkCentre E73 Hardware Maintenance Manual      To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Removing the front Wi Fi antenna  To remove the fro
118. mit ordnungsgem      geerdetem Schutzkontakt anschlie  en     e Die Signalkabel nach M  glichkeit einh  ndig anschlie  en oder l  sen  um einen Stromschlag durch  Ber  hren von Oberfl  chen mit unterschiedlichem elektrischem Potenzial zu vermeiden     e Ger  te niemals einschalten  wenn Hinweise auf Feuer  Wasser oder Geb  udesch  den vorliegen     e Die Verbindung zu den angeschlossenen Netzkabeln  Telekommunikationssystemen  Netzwerken  und Modems ist vor dem Offnen des Geh  uses zu unterbrechen  sofern in den Installations  und  Konfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind        Zum Installieren  Transportieren und   ffnen der Abdeckungen des Computers oder der  angeschlossenen Einheiten die Kabel gem     der folgenden Tabelle anschlie  en und abziehen       Schalten Sie alle Einheiten AUS    Schalten Sie alle Einheiten AUS       Schlie  en Sie erst alle Kabel an die Einheiten an    Ziehen Sie zuerst alle Netzkabel aus den      Schlie  en Sie die Signalkabel an die Buchsen an  Netzsteckdosen     3  Ziehen Sie die Signalkabel aus den Buchsen       SchlieBen Sie die Netzkabel an die Steckdose an     Schalten Sie die Einheit EIN  4  Ziehen Sie alle Kabel von den Einheiten ab        CAUTION     Eine verbrauchte Lithiumbatterie nur durch eine Batterie mit der Teilenummer 45C1566 oder eine  gleichwertige  vom Hersteller empfohlene Batterie ersetzen  Enth  lt das System ein Modul mit einer  Lithiumbatterie  dieses nur durch ein Modul desselben Typs 
119. mmon name     Be significantly different from your previous passwords    Power On Password    When a Power On Password is set  you are prompted to type a valid password each time the computer is  turned on  The computer cannot be used until the valid password is typed in     Administrator Password    Setting an Administrator Password deters unauthorized users from changing configuration settings  If you  are responsible for maintaining the configuration settings of several computers  you might want to set an  Administrator Password     When an Administrator Password is set  you are prompted to type a valid password each time you try to  access the Setup Utility program  The Setup Utility program cannot be accessed until a valid password  is typed in     If both the Power On Password and Administrator Password are set  you can type either password  However   you must use your Administrator Password to change any configuration settings     Hard Disk Password    Setting a Hard Disk Password prevents unauthorized access to the data on the hard disk drive  When a  Hard Disk Password is set  you are prompted to type a valid password each time you try to access the  hard disk drive     Notes   e After you set a Hard Disk Password  your data on the hard disk drive is protected even if the hard disk  drive is removed from one computer and installed in another     e    the Hard Disk Password is forgotten  there is no way to reset the password or recover data from the  hard disk drive  
120. moving the  computer cover     To remove the computer cover  do the following   1  Remove any media from the drives and turn off all attached devices and the computer   2  Disconnect all power cords from electrical outlets     3  Disconnect the power cords  Input Output cables  and any other cables that are connected to the  computer  See    Locating connectors  controls  and indicators on the front of your computer    on page  67 and    Locating connectors on the rear of your computer    on page 68     4  Remove any locking device that secures the computer cover  such as a padlock or a Kensington style  cable lock     82 ThinkCentre E73 Hardware Maintenance Manual    5  Remove the two screws that secure the computer cover and slide the computer cover to the rear to  remove it                     3333333333 3333333   OOO                              BBB                                                          Figure 11  Removing the computer cover    Removing and reinstalling the front bezel    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to remove and reinstall the front bezel     To remove and reinstall the front bezel  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82     Chapter 9  Replacing FRUs  mach
121. n page 1        This section provides instructions on how to replace the front audio and USB assembly     To replace the front audio and USB assembly  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See  Removing the computer cover  on page 126     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  163    11     12   13       Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127     Pivot the drive bay assembly upward  See    Accessing the system board components and drives    on    page 128       Disconnect the front audio and USB assembly cables from the system board  See    Locating parts on    the system board    on page 79     Note  Ensure you note the locations of the cables when you disconnect the cables from the system  board       Lower the drive bay assembly  See    Accessing the system board components and drives    on page 128     Remove the screw that secures the front audio and USB assembly bracket to the chassis to remove    the bracket from the chassis        Figure 108  Removing the front audio and USB assembly      Install the front audio and USB assembly bracket into the chassis and align the screw hole in the    bracket with the corresponding hole in the chassis       Install the screw to secure the bracket to the chassis     Pivot the drive bay assembly upward and reconnect the front USB and front audio cables to the sys
122. n the bottom of the heat sink  and fan assembly     Install all memory modules and PCI Express cards removed from the failing system board onto the new  system board  See  Installing or replacing a memory module  on page 88 and  Installing or replacing a  PCI Express card  on page 85     Refer to your record to connect cables to the new system board  You also can refer to  Locating  parts on the system board  on page 72 to help you locate the connectors on the system board and  connect cables     To complete the replacement  go to    Completing the parts replacement  on page 122     The failing system board must be returned with a microprocessor socket cover to protect the pins during  shipping and handling     110  ThinkCentre E73 Hardware Maintenance Manual    To install the microprocessor socket cover  do the following     1  After you have removed the microprocessor from the failing system board  close the microprocessor  retainer and then put the lever to the locked position to secure the retainer in place     2  Note the orientation of the socket cover  and install one side of the socket cover onto the microprocessor  socket  Carefully press the other side of the socket cover downward until the socket cover snaps  into position     Note  Your microprocessor socket and cover might look slightly different from the illustration        Figure 43  Installing the socket cover onto the microprocessor socket    3  Carefully check the four corners of the socket cover to ensure t
123. nally and is difficult to repeat     Actions        Verify that all cables and cords are securely connected to the computer and attached devices     e Verify that when the computer is on  the fan grill is not blocked  there is air flow around the grill   and the  fans are working  If airflow is blocked or the fans are not working  the computer might overheat     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     Hard disk drive problems  Select your symptom from the following list     e    Some or all hard disk drives missing from the Setup Utility program  on page 41    e   No Operating System Found  message or the system not starting from the correct hard disk drive     on page 42    Some or all hard disk drives missing from the Setup Utility program  Symptom  Some or all hard disk drives missing from the Setup Utility program    Actions     Ensure that all hard disk drive signal cables and power cables are connected correctly     Ensure that your computer is configured correctly to support the hard disk drives         If your computer is installed with five SATA hard disk drives  ensure that the SATA hard disk drive  enablement module  one to five hard disk drives  is installed         If your computer is installed with SAS hard disk drives  ensure that the SAS hard disk drive enablement  module  one to five hard 
124. ndard position  pin 1 and pin 2  to the maintenance position  pin 2 and  pin 3      5  Reinstall the computer cover and connect the power cord  For machine types 1577  1579  and 1607   see    Completing the parts replacement    on page 122  For machine types 1578  1583  and 1652  see     Completing the parts replacement    on page 174     6  Turn on the computer and leave it on for approximately 10 seconds  Then  turn off the computer by  holding the power switch for approximately five seconds     7  Repeat step 1 through step 3   8  Move the Clear CMOS  Recovery jumper back to the standard position  pin 1 and pin 2      9  Reinstall the computer cover and connect the power cord  For machine types 1577  1579  and 1607   see    Completing the parts replacement    on page 122  For machine types 1578  1583  and 1652  see     Completing the parts replacement    on page 174        Enabling or disabling a device    This section provides information on how to enable or disable user access to the following devices   USB Setup Use this option to enable or disable a USB connector  When a USB connector is  disabled  the device connected to the USB connector cannot be used     SATA Controller When this feature is set to Disable  all devices connected to the SATA connectors   such as hard disk drives or the optical drive  are disabled and cannot be accessed     To enable or disable a device  do the following   1  Start the Setup Utility program  See    Starting the Setup Utility program  
125. ng a computer        General safety   Follow these rules to ensure general safety       Observe good housekeeping in the area of the machines during and after maintenance     When lifting any heavy object      Ensure you can stand safely without slipping      Distribute the weight of the object equally between your feet      Use a slow lifting force  Never move suddenly or twist when you attempt to lift          N        Lift by standing or by pushing up with your leg muscles  this action removes the strain from the  muscles in your back  Do not attempt to lift any objects that weigh more than 16 kg  35 Ib  or objects  that you think are too heavy for you       Do not perform any action that causes hazards to the customer  or that makes the equipment unsafe        Before you start the machine  ensure that other service representatives and the customer s personnel         not in a hazardous position        Place removed covers and other parts in a safe place  away from all personnel  while you are servicing  the machine        Keep your tool case away from walk areas so that other people will not trip over it        Do not wear loose clothing that can be trapped in the moving parts of a machine  Ensure that your sleeves  are fastened or rolled up above your elbows  If your hair is long  fasten it        nsert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip  approximately  8 centimeters  3 inches  from the end       Do not wear jewelry  
126. ng environments may vary significantly  Some measurements may have been  made on development level systems and there is no guarantee that these measurements will be the same  on generally available systems  Furthermore  some measurements may have been estimated through  extrapolation  Actual results may vary  Users of this document should verify the applicable data for their  specific environment     O Copyright Lenovo 2013 181       Television output notice    The following notice applies to models that have the factory installed television output feature     This product incorporates copyright protection technology that is protected by method claims of certain U S   patents and other intellectual property rights owned by Macrovision Corporation and other rights owners   Use of this copyright protection technology must be authorized by Macrovision Corporation  and is intended  for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation   Reverse engineering or disassembly is prohibited        European conformance CE mark    Ce       Trademarks  The following terms are trademarks of Lenovo in the United States  other countries  or both     Lenovo   The Lenovo logo  Rescue and Recovery  ThinkCentre  ThinkVantage    Microsoft  Windows  and Windows Media are trademarks of the Microsoft group of companies     Other company  product  or service names may be trademarks or service marks of others     182  ThinkCentre E73 Hardware Maintenance M
127. ng the rear Wi Fi antenna    Attention     Do not open your computer or attempt any repair before reading and understanding the    Important safety information     on page 1        This section provides instructions on how to install or remove the rear Wi Fi antenna     Installing the rear Wi Fi antenna  To install the rear Wi Fi antenna  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets     2  Install the rear Wi Fi antenna to the rear Wi Fi antenna cable connector attached on the rear of the  computer     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  169    3  Adjust the angle of the rear antenna to lower the risk of breaking the antenna by accident        Figure 117  Installing the rear WiFi antenna    What to do next     To work with another piece of hardware  go to the appropriate section        To complete the installation or replacement  go to    Completing the parts replacement    on page 174     Removing the rear Wi Fi antenna   To remove the rear Wi Fi antenna  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Straighten the rear Wi Fi antenna so that it can be more easily twisted     3  Hold the thicker end of the rear WiFi antenna and unscrew the WiFi antenna from the rear of the  computer        Figure 118  Removing the rear WiFi antenna    What to do next     e To work with another piece of hardware  go to the appropriate section     17
128. nnect the new power supply assembly cables to all drives and the system board  See    Locating  parts on the system board    on page 79     150  ThinkCentre E73 Hardware Maintenance Manual    10  Lower and position the heat sink fan duct on the top of the heat sink and fan assembly until it snaps  into position                                Figure 95  Installing the heat sink fan duct  11  Secure the power supply assembly cables with the cable clips and ties in the chassis     What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to  Completing the parts replacement  on page 174     Replacing the heat sink and fan assembly    Attention     Do not open your computer or attempt any repair before reading and understanding  Important safety information   on page 1        This section provides instructions on how to replace the heat sink and fan assembly   CAUTION     The heat sink and fan assembly might be very hot  Turn off the computer and wait three to five  minutes to let the computer cool before removing the computer cover     To replace the heat sink and fan assembly  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See  Removing the computer cover  on page 126   3  Remove the front bezel  See  Removing and reinstalling the front bezel  on page 127     Chapter 10  Replacing FRUs  machine types  10AU  10AW 
129. nnectors  controls  and indicators  on the front of your computer      Locating connectors on the rear of your  computer      Locating major FRUS and  CRUs    Looking up FRU information  Locating parts on the system board  Locating internal drives    For machine OES 10AU  10AW  10BF  and  10BG              51  52  53  53    55  55  55  55  56  56  56  56  56    57  57  58  58    58  58    59  59    61  61  61  61  62  64  65    67  67    67    68  69  71  72  73    73    Locating connectors  controls  and indicators  on the front of your computer      Locating connectors on the rear of your  computer   Er    Locating major FRUS and CRUS    Looking up FRU information  Locating parts on the system board  Locating internal drives    Chapter 9  Replacing FRUs  machine  types  10AS and 10AU     Handling static sensitive devices  Installing or replacing hardware    Installing external options  Removing the computer cover   Removing and reinstalling the front       Installing or replacing a PCI Express card    Installing or replacing a memory module   Replacing the rear fan assembly    Replacing the battery    Replacing the primary hard disk diva   Installing the solid state drive    Replacing the optical drive    Replacing the slim card reader  Replacing the power supply assembly  Replacing the heat sink and fan assembly    Replacing the thermal sensor    Replacing the microprocessor   Replacing the system board    Replacing the front audio and USB  assembly      Replacing the Wi F
130. nt Wi Fi antenna  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets     Remove the computer cover  See    Removing the computer cover    on page 82     Remove the front bezel  See    Removing and reinstalling the front bezel    on page 83     Disconnect the front antenna cable from the Wi Fi card module     Remove the front antenna and cable from the front of the computer     ar WwW nnm                                           SSSSSSSSA OI       Figure 57  Removing the front Wi Fi antenna    What to do next     To work with another piece of hardware  go to the appropriate section       To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Replacing the keyboard or mouse    Attention   Do not open your computer or attempt any repair before reading and understanding  Important safety information        on page 1     This section provides instructions on how to replace the keyboard or mouse     To replace the keyboard or mouse  do the following   1  Disconnect the old keyboard cable or mouse cable from the computer     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  121    2  Connect a new keyboard or mouse to one of the USB connectors on the computer  Depending on  where you want to connect the new keyboard or mouse  see    Locating connectors  controls  and  indicators on the front of your computer    on page 67 or    Locating connectors on the rear of your  computer 
131. ntify potential safety hazards due to attachment of features or options not covered by this  inspection guide     If any unsafe conditions are present  you must determine how serious the apparent hazard could be and  whether you can continue without first correcting the problem     Consider these conditions and the safety hazards they present    e Electrical hazards  especially primary power  primary voltage on the frame can cause serious or fatal  electrical shock     e Explosive hazards  such as a damaged CRT face or bulging capacitor      Mechanical hazards  such as loose or missing hardware    The guide consists of a series of steps presented in a checklist  Begin the checks with the power off  and  the power cord disconnected     Checklist   1  Check exterior covers for damage  loose  broken  or sharp edges    2  Power off the computer  Disconnect the power cord   3  Check the power cord for     a  A third wire ground connector in good condition  Use a meter to measure third wire ground  continuity for 0 1 ohm or less between the external ground pin and frame ground     b  The power cord should be the appropriate type as specified in the parts listings   c  Insulation must not be frayed or worn   4  Remove the cover     Chapter 2  Safety information 5    5  Check for any obvious alterations  Use good judgment as to the safety of any alterations     6  Check inside the unit for any obvious unsafe conditions  such as metal filings  contamination  water or  other liquids  o
132. ny repair before reading and understanding    Important safety information       on page 1        This section provides instructions on how to replace the rear fan assembly     To replace the rear fan assembly  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82   3  Locate the rear fan assembly  See    Locating major FRUs and CRUs    on page 69   4      Disconnect the rear fan assembly cable from the system fan connector on the system board  See     Locating parts on the system board    on page 72     90  ThinkCentre E73 Hardware Maintenance Manual    5  The rear fan assembly is attached to the chassis by four rubber mounts  Remove the rear fan assembly  by breaking or cutting the rubber mounts and gently pulling the rear fan assembly out of the chassis     Note  The new rear fan assembly will have four new rubber mounts attached     UP                                  EU LLL Le             Figure 20  Removing the rear fan assembly    6  Install the new rear fan assembly by aligning the new rubber mounts with the corresponding holes in the  chassis and push the rubber mounts through the holes     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  91    7  Pull on the tips of the rubber mounts until the rear fan assembly is secured in place     OOOO                                                    Figure 21  Installing the rear fan assembly  
133. o and from the speakers      Use the DVD menu for the video to select a different audio track     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     Playback is very slow or choppy  Symptom  Playback is very slow or choppy     Actions       Disable any background programs  such as AntiVirus or Desktop Themes     40  ThinkCentre E73 Hardware Maintenance Manual    e Ensure that video resolution is set to less than 1152 x 864     If these actions do not correct the problem  run the diagnostic programs  see    Lenovo Solution Center    on  page 53 for instructions   If you need technical assistance  see    Lenovo Support Web site    on page 32     Invalid disc or no disc found message  Symptom  Invalid disc or no disc found message    Actions      Ensure that a DVD disc is in the drive with the shiny side of the disc facing down      Ensure that video resolution is set to less than 1152 x 864     e On computers that have a CD ROM or CD RW drive in addition to a DVD ROM drive  make sure that the  DVD disc is in the drive labeled    DVD        If these actions do not correct the problem  run the diagnostic programs  see    Lenovo Solution Center    on  page 53 for instructions   If you need technical assistance  see    Lenovo Support Web site    on page 32     Intermittent problems    Symptom  A problem occurs only occasio
134. oblem  you might need technical assistance  Contact your software  manufacturer or see    Lenovo Support Web site    on page 32 for details     USB problems    Symptom  The USB connectors cannot be accessed     Actions     Make sure the USB cable is securely connected to the USB connector and to the USB device  Ifthe USB  device has its own power cord  make sure it is attached to a properly grounded electrical outlet     If the USB device has its own On Off switch  make sure it is in the On position   If the USB device has an Online switch  make sure it is in the Online position   If the USB device is a printer  make sure paper is loaded correctly     Make sure any device drivers or other software supplied with the USB device is correctly installed   Refer to the documentation for the USB device     Reset the device by detaching and reattaching the USB connector     If these actions do not correct the problem  run the diagnostic programs to test the USB connector  see   Lenovo Solution Center  on page 53 for instructions   If the USB device came with its own diagnostics   run those diagnostics against the USB device  If you need technical assistance  see    Lenovo Support  Web site    on page 32     52  ThinkCentre E73 Hardware Maintenance Manual       Diagnostics    The diagnostic program is used to test hardware components of your computer  The diagnostic program can  also report operating system controlled settings that interfere with the correct operation of your computer
135. og in to the operating system     Viewing and changing settings    The Setup Utility program menu lists various items about the system configuration  To view or change  settings  start the Setup Utility program  See    Starting the Setup Utility program    on page 55  Then  follow  the instructions on the screen     You can use either the keyboard or the mouse to navigate through BIOS menu choices  The keys used to  perform various tasks are displayed at the bottom of each screen        Using passwords    By using the Setup Utility program  you can set passwords to prevent unauthorized access to your computer  and data  The following types of passwords are available     e Power On Password  e Administrator Password  e Hard Disk Password    You do not have to set any passwords to use your computer  However  using passwords improves  computing security  If you decide to set any passwords  read the following sections     O Copyright Lenovo 2013 55    Password considerations    A password can be any combination of up to 64 alphabetic and numeric characters  For security reasons  it  is recommended to use a strong password that cannot be easily compromised  To set a strong password   use the following guidelines        Have at least eight characters in length     Contain at least one alphabetic character and one numeric character   e Setup Utility program and hard disk drive passwords        not case sensitive  e Not be your name or your user name      Not be a common word or a co
136. olled files    Comparing the configuration and software set up between    working and non working    systems will often  lead to problem resolution     34 ThinkCentre E73 Hardware Maintenance Manual       Chapter 5  Troubleshooting and diagnostics    This chapter describes some basic troubleshooting and diagnostic programs  If your computer problem is  not described here  see    Lenovo Support Web site    on page 32 for additional troubleshooting resources        Basic troubleshooting    The following table provides information to help you troubleshoot your computer problems     Note  If you cannot correct the problem  have the computer serviced  For a list of service and support  telephone numbers  refer to the Safety  Warranty  and Setup Guide that comes with your computer or go to  the Lenovo Support Web site at http   www lenovo com support phone     Son   on 1    The computer does not start Verify that   when you press the power    switch e The power cord is correctly connected to the rear of the computer and to a    working electrical outlet     If your computer has a secondary power switch on the rear of the computer   make sure that it is switched on     The power indicator on the front of the computer is on     The computer voltage matches the voltage available at the electrical outlet for  your country or region     The monitor screen is blank  Verify that     e The monitor signal cable is correctly connected to the monitor and to the  appropriate monitor connector 
137. om the optical drive     Hold the optical drive and remove the two screws that secure the optical drive                 Figure 75  Removing the optical drive    Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  137    7  Press the drive bay assembly clip El inward and pivot the drive bay assembly downward as shown        Figure 76  Lowering the drive bay assembly    8  Slide the optical drive out of the front of the computer        Figure 77  Removing the optical drive    138  ThinkCentre E73 Hardware Maintenance Manual    9  Slide the new optical drive into the optical drive bay from the front of the computer        Figure 78  Installing a new optical drive    10  Hold the new optical drive and pivot the drive bay assembly upward  Align the screw holes in the new  optical drive with the corresponding holes in the drive bay  Then  install the two screws to secure  the new optical drive in place        Figure 79  Installing the optical drive    Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  139    11  Connect one end of the signal cable to the rear of the new optical drive and the other end to an available  SATA connector on the system board  See    Locating parts on the system board    on page 79  Then   locate an available five wire power connector and connect it to the rear of the new optical drive        Figure 80  Connecting the optical drive  12  Lower the drive bay assembly     What to do next     To work with another piece o
138. omputer cover and reconnect the power cords for the computer and monitor  For machine    types 1577  1579  and 1607  see    Completing the parts replacement    on page 122  For machine types  1578  1583  and 1652  see    Completing the parts replacement    on page 174       Turn on the computer and then insert the POST and BIOS update  flash update  disc into the optical    drive  Wait a few minutes  Then  the recovery session begins  The recovery session will take two to  three minutes  During this time  a warning message will be displayed and no action is needed from you       After the recovery session is completed  there will be no video  and your computer will automatically    turn off    Repeat step 1 through step 4    Move the jumper back to the standard position  pin 1 and pin 2     Reinstall any parts and reconnect any cables that have been removed or disconnected     Chapter 11  Additional service information 179    13  Reinstall the computer cover and reconnect power cords and all other external cables  For machine  types 1577  1579  and 1607  see    Completing the parts replacement    on page 122  For machine types  1578  1583  and 1652  see    Completing the parts replacement    on page 174     14  Turn on the computer to restart the operating system        Power management    Power management reduces the power consumption of certain components of the computer such as the  system power supply  processor  hard disk drives  and some monitors     Advanced configurat
139. on the computer     The monitor power cord is correctly connected to the monitor and to a working  electrical outlet     The monitor is turned on and the brightness and contrast controls are set  correctly     The computer voltage matches the voltage available at the electrical outlet for  your country or region     If your computer has two monitor connectors  be sure to use the connector  on the graphics card     The keyboard does not work  Verify that     e The computer is turned on   e The keyboard is securely connected to a USB connector on the computer     No keys are stuck   The mouse does not work  Verify that     The computer is turned on       The mouse is securely connected to a USB connector on the computer        e The mouse is clean     O Copyright Lenovo 2013 35    Dom Se    The operating system does not   Verify that     start  e The startup sequence includes the device where the operating system resides     Usually  the operating system is on the hard disk drive  For more information   see    Selecting a startup device    on page 58     The computer beeps multiple Verify that no keys are stuck   times before the operating  system starts           Accessing Control Panel on the Windows 8 operating system    On the Windows operating system  you can view and change computer settings through Control Panel  To  access Control Panel on the Windows 8 operating system  do one of the following   e From the desktop  1  Move the cursor to the top right or bottom right co
140. ooting    Audio problems  CD problems  DVD problems    Intermittent problems    Hard disk drive problems  a  Keyboard  mouse  or pointing device  problems    Dp  Monitor problems   Networking problems    Option problems    Performance and lockup problems   Printer problems    Serial port problems     O Copyright Lenovo 2013                                      29  29  29    30  30    30    32  32    33  33    35  35    36  36  37  37  39  40  41  41    42  44  45  48  49  50  51    Software problems     USB problems    Diagnostics     Lenovo Solution Canter    Chapter 6  Using the PDP a  program     Starting the Setup Utility program    Viewing and changing settings    Using passwords     Password considerations   Power On Password  Administrator Password    Hard Disk Password  2  Setting  changing  and deleting    password    Erasing lost or forgotten ca  clearing  CMOS    E clint agi iy Vent ira 2    Enabling or disabling a devies  Selecting a startup device   Daia  Selecting a temporary startup device      Selecting or            the startup device  sequence     35    Enabling ErP compliance ode     Changing the BIOS FASE before instaling a new  operating system       42   lt     Exiting the Setup Utility program    Chapter 7  Symptom to FRU index     Hard disk drive boot error     Power supply problems     Beep symptoms     POST error codes     Miscellaneous error messages   Undetermined problems      Chapter 8  Locations  For machine types  10AS and 10AU      Locating co
141. or  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82   3  Lay the computer on its side for easier access to the system board   4  Remove the heat sink and fan assembly  See    Replacing the heat sink and fan assembly    on page 102   Note  Place the heat sink and fan assembly on its side so that the thermal grease on the bottom of it  does not get in contact with anything     5  Lift the small handle E and open the retainer    to access the microprocessor EL                                                                                                                                                                               E   esa  A EE  lm       fil l   en H                                                                                                                                                                                                                                                                                                 Figure 39  Accessing the microprocessor    6  Lift the microprocessor straight up and out of the microprocessor socket        Figure 40  Removing the microprocessor    Chapter 9  Replacing FRUs  machine types  10AS and 10AU  107    Notes   a  Your microprocessor and socket might look different from the one illustrated     b  Note the orientation of the microprocessor in the socket  You can either look fo
142. or from the chassis                             Figure 37  Removing the thermal sensor    7  Pull the entire thermal sensor out of the chassis     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  105    8  Insert the connector and cable of the new thermal sensor into the hole      the chassis  Then align the  two tabs on the plastic holder holding the thermal sensor with the two holes Ell and      the chassis   and push the plastic holder until it snaps into position                                         Figure 38  Installing the new thermal sensor    9  Reconnect the thermal sensor cable to the system board  See    Locating parts on the system board     on page 72   10  Reinstall the front bezel  See    Removing and reinstalling the front bezel    on page 83     What to do next   e To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Replacing the microprocessor    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the microprocessor     CAUTION     106  ThinkCentre E73 Hardware Maintenance Manual    The heat sink and microprocessor might be very hot  Turn off the computer and wait three to five  minutes to let the computer cool before removing the computer cover   To replace the microprocess
143. ormation about  passwords  see    Using passwords    on page 55    Operating system password    Note  This section applies only to computer models that have an operating system preinstalled from Lenovo     An operating system password      very similar to a power on password and denies access to the computer by  an unauthorized user when the password is activated  The computer is unusable until the correct password  is entered and recognized by the computer     Vital Product Data    Each computer has a unique Vital Product Data  VPD  code stored in the nonvolatile memory on the system  board  After you replace the system board  the VPD must be updated  To update the VPD  see    Flash  update procedures    on page 177        BIOS levels    An incorrect level of BIOS can cause false errors and unnecessary FRU replacement  Use the following  information to determine the current level of BIOS installed in the computer  the latest BIOS available for the  computer  and where to obtain the latest level of BIOS     e To determine the current Level of BIOS     Start the Setup Utility     Select Standard CMOS Features        Sources for obtaining the latest level BIOS available  1  Lenovo support web site  http   www lenovo com support   2  Lenovo Customer Support Center  3  Levels 1 and 2 Support    To update  flash  the BIOS  see    Flash update procedures    on page 177     Note  BIOS settings vary by operating system  Change the BIOS settings before installing a new operating  syst
144. ots  2         PCI Express x16 graphics card slot         System fan connector  EH Battery    Locating internal drives    Internal drives are devices that your computer uses to read and store data  You can add drives to your  computer to increase storage capacity and enable your computer to read other types of media  Internal  drives are installed in bays  In this manual  the bays are referred to as bay 1  bay 2  and so on     When installing or replacing an internal drive  it is important to note the type and size of the drive that you  can install or replace in each bay and correctly connect the cables to the drive installed  Refer to the  appropriate section in    Installing or replacing hardware    on page 81 for instructions on how to install or  replace internal drives for your computer     Figure 5    Drive bay locations    on page 73 shows the locations of the drive bays            Y                             Figure 5  Drive bay locations    El Bay 1   Optical drive bay  with an optical drive installed on some models    El Bay 2   Slim card reader drive bay   El Bay 3   Primary hard disk drive bay  with a 3 5 inch SATA hard disk drive installed      Bay 4   Secondary hard disk drive bay       For machine types  10AU  10AW  10BF  and 10BG    This section provides information to help you locate your computer connectors  components  parts on  the system board  and internal drives     Note  The components in your computer might look slightly different from the illustrat
145. overy 179  removing computer cover 82  126  replacing  battery 92  133  hard disk drive 93  134  heat sink and fan assembly 102  151  microprocessor 106  156  slim card reader 98  140  solid state drive 143    S    security   enabling or disabling 57  selecting   startup device 58   temporary startup device 58  Self service CRUs 69  76  setting   password 56  settings    184  ThinkCentre E73 Hardware Maintenance Manual    changing 55   viewing 55  Setup Utility 55  Setup Utility program  starting 55  Setup Utility  exiting 59  slim card reader  replacing 98  140  solid state drive  installing 95  solid state drive  replacing 143  starting the Setup Utility program 55  startup device 58   sequence  changing 58   temporary  selecting 58  static sensitive devices  handling 81  125  support web site   support 32  support  web site 32  system board   locating parts 72  79   locations 72  79   memory module 88  131  System board components   accessing 128  system fan assembly  replacing 161    T    temporary startup device 58  the BIOS  updating  flashing  178 179  thermal sensor  replacing 104  154  tower computers  hardware  installing or replacing  device drivers  obtaining 123  external options 81  troubleshooting  basic 35  troubleshooting  diagnostics 35    U    updating    flashing  the BIOS 178  updating  flashing  the BIOS 179  USB 2 0 connector 76  USB 3 0 connector 76  USB connector 69  using   passwords 55   Setup Utility 55    V    VGA monitor connector 69  76  viewing
146. pointed object       Scraping the surface of the reader with your nail or anything hard      Using or touching the reader with a dirty finger      The surface of your finger is very different from when you enrolled your fingerprint     The wireless keyboard does not work  Symptom  The wireless keyboard does not work     Action  If the Transceiver Communications LED is on and the wireless Keyboard does not work  restart your  computer  If restarting your computer does not solve the problem  verify that the following conditions are met     The batteries are properly installed    e The batteries still retain their current      The wireless Keyboard is located less than ten meters away from the transceiver    e The transceiver is fully installed     Action  If the Transceiver Communications LED is not on  reconnect the transceiver and the keyboard     Chapter 5  Troubleshooting and diagnostics 43    Monitor problems    Note  Many monitors have status indicator lights and built in controls for adjusting brightness  contrast   width  height  and other picture adjustments  However  the controls vary from monitor type to monitor type   For information about the status lights and using the controls  refer to the documentation that comes   with your monitor     Select your symptom from the following list     e  Wrong characters appear on the screen    on page 44    e  The monitor works when you turn on the computer  but goes blank after some period of computer  inactivity    on page 44
147. profile     Action  Do the following   1  Exit the application that uses the sound device  for example  Windows Media   Player      Open Control Panel     Click Hardware and Sound  gt  Sound     Select the Playback tab       If you are using the Headset profile  select Bluetooth Hands free Audio and click the Set Default  button  If you are using the AV profile  select Stereo Audio and click the Set Default button     6  Click OK to close the Sound window     a a ON    Note  Bluetooth is supported only on some computer models     Option problems    Use this information to diagnose problems with Lenovo hardware options that do not have their own  troubleshooting information     Select your symptom from the following list     e    An option that was just installed does not work    on page 48  e  An option that previously worked does not work now    on page 48    An option that was just installed does not work  Symptom  An option that was just installed does not work     Action  Verify that     The option is designed for your computer       You followed the installation instructions supplied with the option and the installation instructions provided  with your computer  and all option files  such as device drivers  if required  are installed correctly       You have not loosened other installed options or cables     e  f the option is an adapter  you have provided enough hardware resources for the adapter to function  correctly  See the documentation supplied with the adapter  a
148. pter 6    Using the Setup  Utility program    on page 55     Replacing the hard disk drive    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the hard disk drive     To replace the hard disk drive  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 126   3  Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127     134  ThinkCentre E73 Hardware Maintenance Manual    4  Note the location of the four screws Ell that secure the hard disk drive  Then  pivot the drive bay  assembly upward        Figure 71  Pivoting the drive bay assembly    5  Hold the hard disk drive and remove the four screws that secure the hard disk drive  Then  remove  the hard disk drive from the drive bay assembly              Figure 72  Removing the hard disk drive    6  Disconnect the signal cable and the power cable from the hard disk drive to completely remove the hard  disk drive from the chassis     7  Connect one end of the signal cable to the rear of the new hard disk drive and the other end to an  available SATA connector on the system board  See    Locating parts on the system board    on page 79   Then  locate an available five wire power connector and connect it to the rear of the new hard
149. r  respectez les consignes de r  glage et  d utilisation des commandes  ainsi que les proc  dures d  crites dans le pr  sent manuel     A    DANGER    Certains produits    laser contiennent une diode    laser int  gr  e de classe                 Prenez  connaissance des informations suivantes     Rayonnement laser lorsque le carter est ouvert  Evitez toute expositiondirecte au rayon laser  Evitez  de regarder fixement le faisceau ou del observer    l aide d instruments optiques     A            gt 18 kg  37 Ibs   gt 32 kg  70 5 lbs   gt 55 kg  121 2 Ibs        ATTENTION     Soulevez la machine avec pr  caution     AA    ATTENTION     L interrupteur de contr  le d alimentation de l unit   et l interrupteur dubloc d alimentation ne coupent  pas le courant   lectrique alimentantl unit    En outre  le syst  me peut   tre   quip   de plusieurs  cordonsd alimentation  Pour mettre l unit   hors tension  vous devez d  connectertous les cordons  de la source d alimentation     Chapter 2  Safety information 17    AA    2  7  mp m  10m    AA    VORSICHT  An Netz   Telefon  und Datenleitungen k  nnen gef  hrliche Spannungen anliegen     Aus Sicherheitsgr  nden   e Bei Gewitter an diesem Ger  t keine Kabel anschlie  en oder l  sen  Ferner keine Installations    Wartungs  oder Rekonfigurationsarbeiten durchf  hren     e Ger  t nur an eine Schutzkontaktsteckdose mit ordnungsgem     geerdetem Schutzkontakt  anschlie  en     e Alle angeschlossenen Ger  te ebenfalls an Schutzkontaktsteckdosen 
150. r mouse    Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  173    Completing the parts replacement    After completing the installation or replacement for all parts  you need to reinstall the computer cover and  reconnect cables  Depending on the parts you installed or replaced  you might need to confirm the updated  information in the Setup Utility program  Refer to Chapter 6    Using the Setup Utility program    on page 55     To reinstall the computer cover and reconnect cables to your computer  do the following     1     Ensure that all components have been reassembled correctly and that no tools or loose screws are left  inside your computer  See    Locating major FRUs and CRUs    on page 76 for the locations of various  components in your computer       Ensure that the cables are routed correctly  Keep cables clear of the hinges and sides of the computer    chassis to avoid interference with closing the computer cover       Lower the drive bay assembly  See    Accessing the system board components and drives    on page 128     If you have removed the front bezel  reinstall it  See  Removing and reinstalling the front bezel    on    page 127       Position the computer cover on the chassis so that the rail guides on the computer cover engage the    rails on the chassis  Then  slide the computer cover to the front of the computer until it snaps into  position and is closed  Then  install the two screws to secure the computer cover     2             
151. r signs of fire or smoke damage     7  Check for worn  frayed  or pinched cables   8  Check that the power supply cover fasteners  screws or rivets  have not been removed or tampered with        Handling electrostatic discharge sensitive devices    Any computer part containing transistors or integrated circuits  ICs  should be considered sensitive to  electrostatic discharge  ESD   ESD damage can occur when there is a difference in charge between objects   Protect against ESD damage by equalizing the charge so that the machine  the part  the work mat  and the  person handling the part are all at the same charge   Notes    1  Use product specific ESD procedures when they exceed the requirements noted here    2  Make sure that the ESD protective devices you use have been certified  ISO 9000  as fully effective     When handling ESD sensitive parts    e Keep the parts in protective packages until they are inserted into the product   e Avoid contact with other people while handling the part      Wear a grounded wrist strap against your skin to eliminate static on your body     e Prevent the part from touching your clothing  Most clothing is insulative and retains a charge even when  you are wearing a wrist strap       Use the black side of a grounded work mat to provide a static free work surface  The mat is especially  useful when handling ESD sensitive devices     e Select a grounding system  such as those listed below  to provide protection that meets the specific  service req
152. r the small triangle  on one corner of the microprocessor or note the orientation of the notches EX on the microprocessor   This is important when installing the new microprocessor on the system board         Touch only the edges of the microprocessor  Do not touch the gold contacts on the bottom     d  Do not drop anything onto the microprocessor socket while it is exposed  The socket pins must be  kept as clean as possible     7  Ensure that the small handle is in the raised position and the microprocessor retainer is fully open   8  Remove the protective cover that protects the gold contacts of the new microprocessor     9  Hold the new microprocessor by its sides and align the small triangle on one corner of the new  microprocessor with the corresponding small triangle on one corner of the microprocessor socket     10  Lower the new microprocessor straight down into the microprocessor socket on the system board        Figure 41  Installing the microprocessor    11  Close the microprocessor retainer and lock it into position with the small handle to secure the new  microprocessor in the socket     12  Reinstall the heat sink and fan assembly  See    Replacing the heat sink and fan assembly    on page 102     108  ThinkCentre E73 Hardware Maintenance Manual    13  Reconnect all cables that were disconnected from the system board     What to do next     To work with another piece of hardware  go to the appropriate section   e To complete the replacement  go to    Completing 
153. rd disk drive boot error  on page 1  Power Supply  61  2  System Board    Diskette drive in use light remains on or does not light 1  Diskette Drive  when drive is active  2  System Board  3  Diskette Drive Cable  Flashing cursor with an otherwise blank display  1  System Board  2  Primary Hard Disk Drive  3  Hard Disk Drive Cable  Incorrect memory size during POST 1  Run the Memory tests  2  Memory Module    3  System Board     Insert a Diskette  icon appears with a known good 1  System Board  diagnostics diskette in the first 3 5 inch diskette drive  2  Diskette Drive Cable    3  Network Adapter  Intensity or color varies from left to right of characters 1  Display  and color bars 2  Video adapter  if present     3  System Board    No power or fan not running 1  See    Hard disk drive boot error    on page 61        64  ThinkCentre E73 Hardware Maintenance Manual    Message Symptom FRU Action    Non system disk or disk error type message with a 1  Diskette Drive    known good diagnostic diskette  2  System Board    3  Diskette Drive Cable    Other display symptoms not listed above  including blank  or illegible display  2  System Board   Power on indicator or hard disk drive in use light not on   but computer works correctly 2  System Board   Printer problems 1  Printer                     Program loads from the hard disk with    known good 1  Run Setup and check Startup sequence   diagnostics diskette in the first 3 5 inch diskette drive 2  Diskette Drive    3  Diskette Dr
154. re for your computer  You can expand  the capabilities of your computer and maintain your computer by installing or replacing hardware     Attention     Do not open your computer or attempt any repair before reading and understanding  Important safety information   on page 1        Notes   1  Use only computer parts provided by Lenovo     2  When installing or replacing an option  use the appropriate instructions in this section along with the  instructions that come with the option     Installing external options    You can connect external options to your computer  such as external speakers  a printer  or a scanner  For  some external options  you must install additional software in addition to making the physical connection   When installing an external option  see  Locating connectors  controls  and indicators on the front of your  computer  on page 74 and  Locating connectors on the rear of your computer  on page 75 to identify the    O Copyright Lenovo 2013 125    required connector  Then  use the instructions that come with the option to help you make the connection  and install any software or device drivers that are required for the option     Removing the computer cover    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to remove the computer cover     CAUTION     Turn off the computer and wait three to five minutes to let the
155. rner of the screen to display the charms   2  Click Settings   3  Click Control Panel   e From the Start screen  1  Move the cursor to the top right or bottom right corner of the screen to display the charms   2  Click Search   3  On the Apps screen  scroll to the right side  and click Control Panel in the Windows System section        Troubleshooting procedure  Use the following procedure as a starting point for diagnosing problems you are experiencing with your  computer    1  Verify that the cables for all attached devices are connected correctly and securely     2  Verify that all attached devices that require ac power are connected to properly grounded  functioning  electrical outlets     3  Verify that all attached devices are enabled in the BIOS settings of your computer  For more information  about accessing and changing the BIOS settings  refer to your Chapter 6  Using the Setup Utility  program  on page 55    4  Go to the    Troubleshooting    on page 37 and follow the instructions for the type of problem you are  experiencing  If the Troubleshooting information does not help you resolve a problem  continue with the  next step     5  Try using a previously captured configuration to see if a recent change to hardware or software settings  has caused a problem  Before restoring a previous configuration  capture your current configuration in  case the older configuration settings do not solve the problem or have adverse affects  To restore a  captured configuration  do
156. ropriate section     To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Installing the solid state drive    Attention     Do not open your computer or attempt any repair before reading and understanding the    Important safety information     on page 1        Chapter 9  Replacing FRUs  machine types  10AS and 10AU  95    This section provides instructions on how to install the 2 5 inch solid state drive     To install the solid state drive  do the following     1  Install the solid state drive into the storage converter  Then  install the four screws to secure the  solid state drive to the storage converter        Figure 27  Installing the solid state drive into the storage converter    2  Connect the signal cable and the power cable to the solid state drive     3  Install the solid state drive into the hard disk drive bay  See    Replacing the primary hard disk drive    on  page 93     What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Replacing the optical drive    Attention   Do not open your computer or attempt any repair before reading and understanding    Important safety information       on page 1        This section provides instructions on how to install or replace the optical drive     Note  The optical drive is only available in some models     To replace an optic
157. rovides instructions on how to replace the solid state drive     The solid state drive is only available in some models  It might be installed in the hard disk drive bay or  on the bottom of the optical drive bay     e To replace the solid state drive in the hard disk drive bay  see  Replacing the solid state drive in the hard  disk drive bay  on page 143       Toreplace the solid state drive on the bottom of the optical drive bay  see  Replacing the solid state drive  on the bottom of the optical drive bay  on page 144     Replacing the solid state drive in the hard disk drive bay    To replace the storage converter with the solid state drive installed in it  you might follow the steps of  replacing the hard disk drive  See  Replacing the hard disk drive  on page 134     To replace the solid state drive in the storage converter  do the following     1  Remove the four screws that secure the solid state drive to the storage converter  Then  remove the  drive from the converter as shown        Figure 85  Removing the solid state drive from the storage converter    2  Take the new solid state drive out of the static protective package     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  143    3  Position the solid state drive into the storage converter so that the holes in the drive are aligned with    the corresponding holes in the converter  Then  install the four screws to secure the solid state drive  to the converter        Figure 86  Installing the 
158. rrect the problem  your monitor might need service  See  Lenovo Support Web  site  on page 32 for details     Networking problems    The following are the most common networking problems  Select your networking problem from the  following list     e  Ethernet problems  on page 45  e    A wireless LAN problem  on page 47  e       wireless WAN problem  on page 47  e    Bluetooth problem  on page 48    Ethernet problems  For Ethernet problems  select your symptom from the following list     e  Your computer cannot connect to the network  on page 46    Chapter 5  Troubleshooting and diagnostics 45    e    The adapter stops working for no apparent reason    on page 46    e    If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps  the connection fails  or errors occur    on page 47    e    If your computer is a Gigabit Ethernet model  it cannot connect to the network at 1000 Mbps  Instead   it connects at 100 Mbps    on page 47    Your computer cannot connect to the network  Symptom  Your computer cannot connect to the network     Actions  Ensure that        The cable is installed properly     The network cable must be securely connected to both the Ethernet connector of your computer and  the RJ45 connector of the hub  The maximum allowable distance from the computer to hub is 100  meters  If the cable is connected and the distance is within acceptable limits but the problem persists  try  a different cable       The cable is installed properly       You ar
159. rs on the screen  A single problem can cause several    error messages to appear  When you correct the cause of the first error message  the other error messages  probably will not appear on the screen the next time you turn on the system     POST Error code POST Error message Description Action  00     Machine Type or Serial Number is INVALID   This error message is displayed when the machine  type or the serial number is invalid   0211 Keyboard not found This error message is displayed when there is no  keyboard detected     0135 Fan failure The system might be overheating   Press F1 to enter the Setup Utility program   Then press F10 to save and exit the Setup Utility  program   Note  If the problem is caused by the  microprocessor fan  pressing F10 will not solve  the problem    0164 Memory size decreased This error message is displayed when the memory  size has decreased   Press F1 to enter the Setup Utility program   Then press F10 to save and exit the Setup Utility  program     62 ThinkCentre E73 Hardware Maintenance Manual       POST Error code POST Error message Description Action    1762 Configuration change has occurred This error message is displayed when a hard disk  drive or optical drive change has been made   Press F1 to enter the Setup Utility program   Then press F10 to save and exit the Setup Utility  program     1820 More than one external fingerprint reader   If more than one external fingerprint reader is  is attached  Power off and remove all but   conn
160. rts in your computer after the power cord has been disconnected  the  following warnings are required for your safety and proper Underwriters Laboratories  UL  certification     CAUTION        Hazardous moving parts  Keep fingers and other body parts away     CAUTION   Never remove the cover on a power supply or any part that has the following label attached        Hazardous voltage  current  and energy levels are present inside any component that has this label  attached  There are no serviceable parts inside these components  If you suspect a problem with  one of these parts  contact a service technician     To replace the power supply assembly  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82     3  Disconnect the power supply assembly cables from all drives and from the 24 pin power connector and  4 pin power connector on the system board  See    Locating parts on the system board    on page 72     Chapter 9  Replacing FRUs  machine types  10AS and 10AU  101    4  Lay the computer on its side and remove the four screws at the rear of the chassis that secure the  power supply assembly        Figure 35  Removing the screws for the power supply assembly    5  Slide the power supply assembly to the front of the computer and then lift it out of the chassis     6  Ensure that the new power supply assembly is the correct replacement  Some power suppl
161. rvice CRUs     70  ThinkCentre E73 Hardware Maintenance Manual    Notes     e Self service CRUs  These CRUs unplug or are secured by no more than two screws  Examples of  these types of CRUs include the keyboard  the mouse  any USB device  and the power cord  Other  self service CRUs depending on product design might include memory modules  adapter cards  hard    disk drives  and optical drives     e Optional service CRUs  These CRUs are isolated parts within the computer and are concealed by       access panel that is typically secured by more than two screws  Once the access panel is removed  the    specific CRU is visible     FRU description  Power supply assembly    Heat sink and fan assembly    Optical drive  available in some models     Front Wi Fi antenna  available in some models     7  e ee di    ER eraso  DE mismo SSCS    Eg             Ep  e                  Wi Fi adapter card  available in some models          Wi Fi card module  available in some models           Rear Wi Fi antenna  available in some models     17 Peripheral Component Interconnect  PCI  PCI  Express card  installed in some models   available  in some models         Rear fan assembly    ER                    Looking up FRU information    Self service CRU      service CRU       For detailed FRU information  such as the FRU part numbers and supported computer models  go to     http  www lenovo com serviceparts lookup    Chapter 8  Locations 71    Locating parts on the system board    Figure 4    Syst
162. s   a  You might have to gently twist the heat sink and fan assembly to free it from the microprocessor     b  When handling the heat sink and fan assembly  do not touch the thermal grease on the bottom  of the heat sink and fan assembly       Place the new heat sink and fan assembly on the system board so that the four screws are aligned with    the corresponding holes in the system board     Note  Position the new heat sink and fan assembly so that the heat sink and fan assembly cable is  toward the microprocessor fan connector on the system board       Follow the following sequence to install the four screws to secure the new heat sink and fan assembly     Do not over tighten the screws   a  Partially tighten screw   then fully tighten screw El and then fully tighten screw EL  b  Partially tighten screw EE then fully tighten screw        then fully tighten screw      Connect the new heat sink and fan assembly cable to the microprocessor fan connector on the system    board  See    Locating parts on the system board  on page 79     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  153    11  Lower and position the heat sink fan duct on the top of the heat sink and fan assembly until it snaps  into position                             Figure 98  Installing the heat sink fan duct    What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replac
163. s de alimentac  o  sistemas de telecomunicac  o   redes e modems conectados  a menos que especificado de maneira diferente nos procedimentos de  instala    o e configura    o     e Conecte e desconecte os cabos conforme descrito na tabela apresentada a seguir ao instalar  mover ou  abrir tampas deste produto ou de dispositivos conectados     Para Conectar  Para Desconectar       DESLIGUE Tudo    DESLIGUE Tudo       Primeiramente  conecte todos os cabos aos   Primeiramente  remova os cabos de alimenta    o das  dispositivos  tomadas     3  Conecte os cabos de sinal aos conectores  3  Remova os cabos de sinal dos conectores     4  Conecte os cabos de alimenta    o   s tomadas  4  Remova todos os cabos dos dispositivos     5  LIGUE os dispositivos        CUIDADO     Ao substituir a bateria de l  tio  utilize apenas uma bateria com N  mero de Pe  a 45C1566 ou um tipo  de bateria equivalente recomendado pelo Se o seu sistema possui um m  dulo com uma bateria de  l  tio  substitua o apenas por um m  dulo do mesmo tipo e do mesmo fabricante  A bateria cont  m l  tio  e pode explodir se n  o for utilizada  manuseada ou descartada de maneira correta    N  o      Jogue ou coloque na   gua      Aque  a a mais de 100  C  212  F    e Conserte nem desmonte    Descarte a bateria conforme requerido pelas leis ou regulamentos locais     A    PRECAUCI  N     Quando produtos a laser  como unidades de CD ROMs  unidades de DVD ROM  dispositivos de fibra   tica  ou transmissores  estiverem instala
164. s well as the documentation for any other  installed adapters  to determine the resources required for each adapter     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     An option that previously worked does not work now  Symptom  An option that previously worked does not work now     Actions   e Verify that all option hardware and cable connections are secure   e  f the option comes with its own test instructions  use those instructions to test the option   e If the failing option is a SCSI option  verify that       The cables for all external SCSI options are connected correctly     The last option in each SCSI chain  or the end of the SCSI cable  is terminated correctly     48  ThinkCentre E73 Hardware Maintenance Manual      All external SCSI options are turned on  External SCSI options must be turned on before the computer  is turned on  For more information  see your SCSI documentation     e Verify that the option and any required device drivers are installed correctly     If these actions do not correct the problem  run the diagnostic programs  see    Lenovo Solution Center    on  page 53 for instructions   If you need technical assistance  see    Lenovo Support Web site    on page 32     Performance and lockup problems  Poor performance and lockup problems can be a result of any of the following     e    Ins
165. safety information     on page 1        102  ThinkCentre E73 Hardware Maintenance Manual    This section provides instructions on how to replace the heat sink and fan assembly     CAUTION     The heat sink and fan assembly might be very hot  Turn off the computer and wait three to five  minutes to let the computer cool before removing the computer cover     To replace the heat sink and fan assembly  do the following     1     Remove the computer cover  See    Removing the computer cover    on page 82     Lay the computer on its side for easier access to the system board        E         7     Turn off the computer        disconnect all power cords from electrical outlets       Locate the heat sink and fan assembly  See    Locating major FRUs and CRUs    on page 69     Disconnect the heat sink        fan assembly cable from the microprocessor fan connector on the system    board  See    Locating parts on the system board    on page 72       Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the    system board   a  Partially remove screw El then fully remove screw    and then fully remove screw  b  Partially remove screw EM then fully remove screw   and then fully remove screw El    Note  Carefully remove the four screws from the system board to avoid any possible damage to the  system board  The four screws cannot be removed from the heat sink and fan assembly                                                                            
166. sembly into the chassis and align the screw hole in the bracket  with the corresponding hole in the chassis   8  Install the screw to secure the new front audio and USB assembly to the chassis     9  Reconnect the front audio and USB assembly cables to the front audio connector and the front USB  connector on the system board  See    Locating parts on the system board    on page 72     What to do next     To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Replacing the Wi Fi units    Attention     Do not open your computer or attempt any repair before reading and understanding the    Important safety information     on page 1        This section provides instructions on how to replace the Wi Fi units  The Wi Fi units include a Wi Fi adapter  card  a Wi Fi card module  and a rear Wi Fi antenna cable    Replacing the Wi Fi units involves the following operations    e  Removing the Wi Fi adapter card    on page 113   e  Removing the Wi Fi card module  on page 114   e    Installing the Wi Fi units    on page 115    112  ThinkCentre E73 Hardware Maintenance Manual    Removing the Wi Fi adapter card  To remove a Wi Fi adapter card  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82     3  If your computer comes with a Wi Fi car
167. solid state drive into the storage converter    What to do next       To work with another piece of hardware  go to the appropriate section        To complete the installation or replacement  go to    Completing the parts replacement    on page 174     Replacing the solid state drive on the bottom of the optical drive bay  To replace the solid state drive on the bottom of the optical drive bay  do the following     1     2   3     Pivot the drive bay assembly upward  See    Accessing the system board components and drives    on    Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer     Remove the computer cover  See    Removing the computer cover    on page 126   Remove the front bezel  See    Removing and reinstalling the front bezel    on page 127     page 128      Note the cable routing and disconnect the signal cable and the power cable from the solid state drive     See    Locating parts on the system board    on page 79     144  ThinkCentre E73 Hardware Maintenance Manual    6  Remove the screw El and then carefully slide the solid state drive bracket upward to remove the bracket  from the bottom of the optical drive bay           9       Figure 87  Removing the solid state drive bracket    7  Remove the four screws that secure the solid state drive to the bracket  Then  slide the drive as shown  to remove it from the br
168. ssembly by cutting the four rubber mounts Ell and lifting the system fan assembly out of the chassis     Note  The new system fan assembly will have four new rubber mounts attached     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  161                Figure 106  Removing the system fan assembly    162  ThinkCentre E73 Hardware Maintenance Manual    9  Install the new system fan assembly by aligning the new rubber mounts that came with the new system  fan assembly with the corresponding holes in the chassis  and then push the rubber mounts through the  holes  Then  carefully pull on the tips of the rubber mounts from the bottom until the new system fan  assembly is secured in place                 Figure 107  Installing the system fan assembly    10  Connect the new system fan assembly cable to the system fan connector on the system board  See     Locating parts on the system board    on page 79     11  Reinstall the heat sink fan duct  See    Replacing the heat sink and fan assembly    on page 151   12  Reinstall the hard disk drive  See    Replacing the hard disk drive    on page 134     What to do next     To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to  Completing the parts replacement  on page 174     Replacing the front audio and USB assembly    Attention     Do not open your computer or attempt any repair before reading and understanding  Important safety information   o
169. talled  note the following     e Do not remove the covers  Removing the covers of the laser product could result in exposure to  hazardous laser radiation  There are no serviceable parts inside the device       Use of controls or adjustments or performance of procedures other than those specified herein  might result in hazardous radiation exposure                 Some laser products contain      embedded Class           Class 3B laser diode  Note      following     Laser radiation when open  Do not stare into the beam  do not view directly with optical  instruments  and avoid direct exposure to the beam      gt 18 kg  37 lbs   gt 32 kg  70 5 Ibs  255 kg  121 2 Ibs           CAUTION   Use safe practices when lifting     AA    CAUTION    The power control button on the device and the power switch on the power supply do not turn off  the electrical current supplied to the device  The device also might have more than one power  cord  To remove all electrical current from the device  ensure that all power cords are disconnected  from the power source     AA    2  7      e  1a    AA    8 ThinkCentre E73 Hardware Maintenance Manual                    Dial y yd sigma  gi CL          aga gall 9   50               JS la   3 09 50 ee              dao         gi GS ellas   pih  A Dia el         j ma     daai Y             24 5 Ai uae 2 gas si      140   1 cip gi           9 5 Od plus gs ola gui sl yg Dll JS Jia 25    a  Axa 45     Cura gig Diab   GIS glp Cola ai   al 1 3   all pjs Ja Pi
170. ted Then press F10 to save and exit the Setup Utility  program   0190 System Security   Invalid security change   Press F1 to enter the Setup Utility program   requested Then press F10 to save and exit the Setup Utility  program   0199 System Security   Security password retry   Press F1 to enter the Setup Utility program   count exceeded Then press F10 to save and exit the Setup Utility  program        Chapter 7  Symptom to FRU index 63       Miscellaneous error messages    Message Symptom FRU Action  Changing display colors Display Monitor    Computer will not power off  See    Hard disk drive boot 1  Power Switch  error    on page 61  2  System Board  3  Riser card  if installed    Computer will not RPL from server 1  Ensure that network is in startup sequence as first  device or first device after diskette    2  Ensure that network adapter is enabled for RPL    3  Network adapter  Advise network administrator of  new MAC address     Computer will not perform a Wake on LAN  if applicable  1  Check power supply and signal cable connections  to network adapter    2  Ensure that the operating system settings are set to  enable Wake on LAN    3  Ensure Wake on LAN feature is enabled in  Setup Configuration  see    Starting the Setup Utility  program    on page 55     4  Ensure network administrator is using correct MAC  address    5  Ensure no interrupt or I O address conflicts    6  Network adapter  advise network administrator of  new MAC address     Dead computer  See    Ha
171. tem    board  See    Locating parts on the system board  on page 79     Reconnect the front audio and USB assembly cables to the front audio connector and the front USB  connector on the system board  See  Locating parts on the system board  on page 79     Lower the drive bay assembly  See  Accessing the system board components and drives  on page 128   Reinstall the front bezel  See  Removing and reinstalling the front bezel  on page 127     What to do next     To work with another piece of hardware  go to the appropriate section       To complete the installation or replacement  go to    Completing the parts replacement  on page 174     164  ThinkCentre E73 Hardware Maintenance Manual    Replacing the Wi Fi units    Attention     Do not open your computer or attempt any repair before reading and understanding the    Important safety information     on page 1        This section provides instructions on how to replace the Wi Fi units  The Wi Fi units include a Wi Fi adapter  card  a Wi Fi card module  and a rear Wi Fi antenna cable     Replacing the Wi Fi units involves the following operations     e  Removing the Wi Fi adapter card  on page 165  e  Removing the Wi Fi card module  on page 166  e    Installing the Wi Fi units    on page 167    Removing the Wi Fi adapter card  To remove the Wi Fi adapter card  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See  Removing the computer cover  on p
172. the battery To replace the battery  do the following     1  Turn off the computer and disconnect all power cords from electrical outlets     N      Remove the computer cover  See    Removing the computer cover    on page 126               Remove the heat sink fan duct  See    Replacing the heat sink and fan assembly    on page 151       Depending on your computer model  you might need to remove the PCI Express x 16 graphics card for  easier access to the battery  See    Installing or replacing a PCI Express card    on page 129      gt     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  133    5  Remove the old battery                                               Figure 69  Removing the old battery    6  Install a new battery                                         Figure 70  Installing a new battery    7  Reinstall the PCI Express x 16 graphics card if you had removed it  See    Installing or replacing a PCI  Express card    on page 129     8  Reinstall the heat sink fan duct  See    Replacing the heat sink and fan assembly    on page 151   9  Reinstall the computer cover and connect the cables  See    Completing the parts replacement    on  page 174   Note  When the computer is turned on for the first time after replacing the battery  an error message  might be displayed  This is normal after replacing the battery   10  Turn on the computer and all attached devices     11  Use the Setup Utility program to set the date  time  and any passwords  See Cha
173. the parts replacement    on page 122     Replacing the system board    Attention     Do not open your computer or attempt any repair before reading and understanding  Important safety information   on page 1        This section provides instructions on how to replace the system board     CAUTION     The heat sink and microprocessor might be very hot  Turn off the computer and wait three to five  minutes to let the computer cool before removing the computer cover     To replace the system board  do the following     1  Remove all media from the drives and turn off all attached devices and the computer  Then  disconnect  all power cords from electrical outlets and disconnect all cables that are connected to the computer     2  Remove the computer cover  See  Removing the computer cover  on page 82   3  Lay the computer on its side for easier access to the system board     4  Remove all memory modules and PCI Express cards that are currently installed  See  Installing or  replacing a memory module  on page 88 and  Installing or replacing a PCI Express card  on page 85     5  Remove the heat sink and fan assembly from the failing system board  See    Replacing the heat sink and  fan assembly  on page 102     Note  Do not let the thermal grease on the bottom of the heat sink and fan assembly get in contact  with anything    6  Record the cable routing and cable connections and then disconnect all cables from the system board   See  Locating parts on the system board  on page 72   
174. these instructions are in  the safety sections of maintenance information  Use extreme care when measuring high voltages        Regularly inspect and maintain your electrical hand tools for safe operational condition     Do not use worn or broken tools and testers     Never assume that power has been disconnected from a circuit  First  check that it has been powered off     e Always look carefully for possible hazards in your work area  Examples of these hazards are moist floors   nongrounded power extension cables  power surges  and missing safety grounds       Do not touch live electrical circuits with the reflective surface of a plastic dental mirror  The surface is  conductive  such touching can cause personal injury and machine damage       Do not service the following parts with the power on when they are removed from their normal operating  places in a machine         Power supply units       Pumps     Blowers and fans       Motor generators   and similar units   This practice ensures correct grounding of the units    e  f an electrical accident occurs        Use caution  do not become a victim yourself        Switch off power        Send another person to get medical aid     4  ThinkCentre E73 Hardware Maintenance Manual       Voltage selection switch    Some computers are equipped with a voltage selection switch located near the power cord connection  point on the computer  If your computer has a voltage selection switch  ensure that you set the switch to  match the 
175. tings     38  ThinkCentre E73 Hardware Maintenance Manual    e  fthese actions do not correct the problem  run the diagnostic programs  see    Lenovo Solution Center    on  page 53 for instructions   If you need technical assistance  see    Lenovo Support Web site    on page 32     CD problems  Select your symptom from the following list     e         audio disc or AutoPlay enabled disc does not automatically play when it is inserted into a CD  drive    on page 39    e    A CD or DVD does not work    on page 39    e    Unable to use a startable  bootable  recovery medium  such as the Product Recovery CD  to start  your computer    on page 39    An audio disc or AutoPlay enabled disc does not automatically play when it is  inserted into a CD drive    Symptom  An audio disc or AutoPlay enabled disc does not automatically play when it is inserted into  a CD drive     Actions     e  f you have multiple CD or DVD drives installed  or a combination of CD and DVD drives   try inserting the  disc into the other drive  In some cases  only one of the drives is connected to the audio subsystem     e  f you are using the Windows 7 operating system  follow the action for    A CD or DVD does not work     on page 39     If this does not correct the problem  follow the action for    A CD or DVD does not work    on page 39     A CD or DVD does not work  Symptom  A CD or DVD does not work     Actions       Verify that the disc is inserted correctly  with its label up       Make sure that the d
176. tner is set to auto negotiate      Make sure that the switch is 802 3ab compliant  gigabit over copper      A wireless LAN problem  Symptom  You cannot connect using the built in wireless networking card     Actions       Make sure that your wireless LAN driver is the latest version  Check the Web site and verify the driver  version supported by Access Connections is the latest documented in the readme file       Make sure that your computer is within range of a wireless access point     Make sure that the wireless radio is enabled by double clicking the Access Connections icon in the  Windows notification area     Note  On the Windows 7 operating system  click Show hidden icons in the Windows notification  area  The Access Connections icon is displayed  For more information about the icon  see the Help in  Access Connections       Check Network Name  SSID   and your encryption information  Use Access Connections to verify this  case sensitive information     A wireless WAN problem  Message  Unauthorized WAN card is plugged in   Power off and remove the WAN card     Action  The wide area network  WAN  card is not supported on this computer  Remove it     Note  A wireless WAN card is supported only on some computer models     Chapter 5  Troubleshooting and diagnostics 47    Bluetooth problem    Symptom  Sound does not come from the Bluetooth headset or headphone but comes from the local  speaker even though the headset or headphone is connected using the Headset profile or AV 
177. trol Panel  open the Lenovo ThinkVantage Tools  program navigation window and double click the dimmed icon to install the program you need  Then   follow the instructions on the screen  When the installation process completes  the program icon will be  activated  and you can find the program in Control Panel     The programs and the corresponding sections and green texts in Control Panel are listed in the following  table     Table 2  Programs in Control Panel    Program Control Panel section Green text in Control Panel  Communications Utility Hardware and Sound Lenovo   Web Conferencing    Fingerprint Software System and Security Lenovo   Fingerprint Reader  Hardware and Sound  Lenovo Solution Center System and Security Lenovo   System Health and  Diagnostics    Password Manager System and Security Lenovo   Password Vault               et   Power Manager Hardware and Sound Lenovo   Power Controls  E      Recovery Media System and Security Lenovo   Factory Recovery Disks       Chapter 3  General information 31    Table 2  Programs in Control Panel  continuea     Program Control Panel section Green text in Control Panel    Rescue and Recovery System and Security Lenovo   Enhanced Backup and  Restore    System Update System and Security Lenovo   Update and Drivers  View Management Utility System and Security Lenovo View Management Utility    Note  Depending on your computer model  some of the programs might not be available        Accessing Lenovo programs on the Windows 8 oper
178. ts is displayed  Follow the instructions on the screen     Procedure 3    1  On the Windows 7 operating system  click Start  gt  Computer  On the Windows 8 operating system   open the Windows Explorer and click Computer     2  Right click your C drive entry and then click Properties   3  Click Disk Cleanup     Chapter 5  Troubleshooting and diagnostics 49      Click Clean up system files     Click the More Options tab     In the Programs and Features area  click the Clean up button     NO    a      Allist of installed programs is displayed  Select the program that you want to remove  Click  Uninstall Change     e Clean out your Inbox  Sent Items  and Deleted Items folders from your e mail application  The folder  names and procedures vary depending on your e mail application  If you need assistance  see the  help system for your e mail application     Excessive number of fragmented files  Symptom  Excessive number of fragmented files    Action  Run the Windows Disk Defragmenter program     Note  Depending on the size of the hard disk drive and amount of data currently stored on the hard disk  drive  the disk defragmentation process might take up to several hours to complete     On the Windows 7 operating system  do the following   1  Close any programs that are currently running and close any open windows     Click Start  gt  Computer     Right click your C drive entry and then click Properties     Click the Tools tab     Click Defragment Now  then click Continue        O1 BO
179. tuirlo solo con un tipo di modulo dello stesso tipo della stessa casa di produzione  La  batteria contiene litio e pu   esplodere se usata  maneggiata o smaltita in modo non corretto     Non        Gettare o immergere la batteria nell acqua  e Riscaldarla ad una temperatura superiore ai 100 gradi     212 gradi F      Smontarla  ricaricarla o tentare di ripararla    Le batterie usate vanno smaltite in accordo alla normativa in vigore  DPR 915 82 e successive  disposizioni e disposizioni locali      22 ThinkCentre E73 Hardware Maintenance Manual    A    ATTENZIONE     Quando vengono installati prodotti laser  quali CD ROM  unit   DVD ROM  unit   a fibre ottiche o  trasmittenti   tener presente quanto segue        Nonrimuovere gli sportelli  L apertura di un unit   laser        determinare l esposizione a radiazioni  laser pericolose  All interno dell unit   non vi sono parti su cui effettuare l assistenza tecnica       L utilizzo di controlli  regolazioni o l esecuzione di procedure non descritti nel presente manuale  possono provocare l esposizione a radiazioni pericolose     A    PERICOLO  Alcune unit   laser contengono un diodo laser di Classe 3A o Classe 3B  Tener presente quanto segue     Aprendo l unit   vengono emesse radiazioni laser  Non fissare il fascio  non guardarlo direttamente  con strumenti ottici ed evitare l esposizione al fascio     A    rr    218 kg 232 kg 255 kg               ATTENZIONE     Prestare attenzione nel sollevare l apparecchiatura     AA    ATTEN
180. types  10AS and 10AU   on  page 81 and Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG   on page 125     For FRU part numbers  go to   http  www lenovo com serviceparts lookup       Important safety information    Be sure to read all caution and danger statements in this manual before performing any of the instructions     Veuillez lire toutes les consignes de type DANGER et ATTENTION du pr  sent document avant d ex  cuter  les instructions     Lesen Sie unbedingt alle Hinweise vom Typ  ACHTUNG  oder  VORSICHT  in dieser Dokumentation  bevor  Sie irgendwelche Vorg  nge durchf  hren    Leggere le istruzioni introdotte da ATTENZIONE e PERICOLO presenti nel manuale prima di eseguire una  qualsiasi delle istruzioni    Certifique se de ler todas as instru    es de cuidado e perigo neste manual antes de executar qualquer  uma das instru    es    Es importante que lea todas las declaraciones de precauci  n y de peligro de este manual antes de seguir  las instrucciones       Haki oda Lil J   USI Jia  Li sasa gal  Gl al US          Ge 356    PUE  ARCA TE AGA PI       UERBO ATO HER MIRA    POUR RER  gt     22993                        95 nr nona nom nanran mymn 22 nx nnxapy wm            AS          DIME USS          0 DE FINE L ABAS                           O Copyright Lenovo 2013 1    2  ThinkCentre E73 Hardware Maintenance Manual       Chapter 2  Safety information    This chapter contains the safety information that you need to be familiar with before servici
181. uct from the failing heat sink and fan assembly        Figure 92  Removing the heat sink fan duct    5  Disconnect the power supply assembly cables from all drives and from the 24 pin power connector and  4 pin power connector on the system board  See    Locating parts on the system board    on page 79     148  ThinkCentre E73 Hardware Maintenance Manual    Note  You might also need to release the power supply assembly cables from some cable clips or ties  that secure the cables to the chassis  Make sure that you note the cable routing before disconnecting  the cables    6  At the rear of the computer  remove the three screws that secure the power supply assembly  Press the  power supply clip El downward to release the power supply assembly and then slide the power supply  assembly to the front of the computer  Lift the power supply assembly out of the computer                       Figure 93  Removing the power supply assembly    7  Ensure that the new power supply assembly is the correct replacement     Chapter 10  Replacing FRUs  machine types  10AU  10AW  10BF  and 10BG  149    8  Install the new power supply assembly into the chassis so that the screw holes in the new power supply  assembly are aligned with the corresponding holes in the rear of the chassis  Then  install the three  screws to secure the new power supply assembly in place     Note  Use only screws provided by Lenovo                                   Figure 94  Installing the power supply assembly    9  Co
182. ufficient free hard disk drive space    on page 49  e    Excessive number of fragmented files    on page 50  e    Insufficient memory  on page 50    Make a selection from the above list to find out more about the corrective actions you can take     Insufficient free hard disk drive space  Symptom  Insufficient free hard disk drive space    The Windows operating system will slow down and might produce errors if the hard disk drive gets too full     To check the amount of free space on the Windows 7 operating system  do the following   1  Click Start  gt  Computer   2  Right click your    drive entry and then click Properties  The amount of free disk space is displayed     To check the amount of free space on the Windows 8 operating system  do the following   1  Open the Windows Explorer and click Computer   2  Right click your    drive entry and then click Properties  The amount of free disk space is displayed     To free up disk space  do any of the following   e Procedure 1    1  On the Windows 7 operating system  click Start  gt  Computer  On the Windows 8 operating system   open the Windows Explorer and click Computer     2  Right click your    drive entry and then click Properties   3  Click Disk Cleanup     4  A list of unnecessary file categories is displayed  Select each file category you want to delete   and then click OK       Procedure 2   1  Open Control Panel    2  Click Programs    3  Click Turn Windows features on or off    4  A list of optional Windows componen
183. uirement     Note  The use of a grounding system is desirable but not required to protect against ESD damage         Attach the ESD ground clip to any frame ground  ground braid  or green wire ground       Use an ESD common ground or reference point when working on a double insulated or  battery operated system  You can use coax or connector outside shells on these systems         Use the round ground prong of the ac plug on ac operated computers        Grounding requirements    Electrical grounding of the computer is required for operator safety and correct system function  Proper  grounding of the electrical outlet can be verified by a certified electrician        Safety notices  multi lingual translations    The caution and danger safety notices in this section are provided in the following languages      English     Arabic   e Brazilian Portuguese     Chinese  simplified      Chinese  traditional     6  ThinkCentre E73 Hardware Maintenance Manual      French  e German    Hebrew  e Italian    Korean  e Spanish    AA    DANGER  Electrical current from power  telephone and communication cables is hazardous     To avoid a shock hazard     e Do not connect or disconnect any cables or perform installation  maintenance  or reconfiguration  of this product during an electrical storm       Connect all power cords to a properly wired and grounded electrical outlet      Connect to properly wired outlets any equipment that will be attached to this product      When possible  use one 
184. und von demselben Hersteller ersetzen   Die Batterie enth  lt Lithium und kann bei unsachgem    er Verwendung  Handhabung oder Entsorgung  explodieren     Die Batterie nicht     e mit Wasser in Ber  hrung bringen     18  ThinkCentre E73 Hardware Maintenance Manual        ber 100 C erhitzen     reparieren oder zerlegen     Die   rtlichen Bestimmungen f  r die Entsorgung von Sonderm  ll beachten     A    ACHTUNG     Bei der Installation von Laserger  ten  wie CD ROM Laufwerken  DVD  aufwerken  Einheiten mit  Lichtwellenleitertechnik oder Sendern  Folgendes beachten     e Die Abdeckungen nicht entfernen  Durch Entfernen der Abdeckungen des Laserger  ts k  nnen  gef  hrliche Laserstrahlungen freigesetzt werden  Das Ger  t enth  lt keine zu wartenden Teile     e Werden Steuerelemente  Einstellungen oder Durchf  hrungen von Prozeduren anders als hier  angegeben verwendet  kann gef  hrliche Laserstrahlung auftreten     A    VORSICHT  Einige Laserger  te enthalten eine Laserdiode der Klasse 3A oder 3B  Beachten Sie Folgendes     Laserstrahlung bei ge  ffneter Verkleidung  Nicht in den Strahl blicken  Keine Lupen oder Spiegel    verwenden  Strahlungsbereich meiden             gt 18 kg  gt 32 kg  gt 55 kg       ACHTUNG     Arbeitsschutzrichtlinien beim Anheben der Maschine beachten     AA    ACHTUNG     Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung f  r die Einheit  nicht unterbrochen  Die Einheit kann auch mit mehreren Netzkabeln ausgestattet sein  Um di
185. ve package by its sides     8  Align the new card reader in the slim card reader bracket and slide the card reader into the rail as shown  until it stops  Then  install the two screws to secure the new card reader to the bracket     Chapter 9  Replacing FRUs  machine types  10AS and 10AU     99                         Figure 33  Installing the new slim card reader into the bracket    9  Route the cable of the new card reader through the corresponding hole for the card reader bracket in  the front of the chassis     10  Install the bracket into the chassis so that the hole in the bracket is aligned with the corresponding hole  in the chassis  Then  Install the screw to secure the card reader bracket to the chassis                                      Figure 34  Installing the slim card reader bracket    11  Connect the cable of the new slim card reader to the system board  See    Locating parts on the  system board    on page 72     What to do next     To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 122     100  ThinkCentre E73 Hardware Maintenance Manual    Replacing the power supply assembly    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to replace the power supply assembly     Although there are no moving pa
186. vie will not play    on page 40   e    No audio or intermittent audio while playing DVD movie    on page 40  e    Playback is very slow or choppy    on page 40   e    Invalid disc or no disc found message  on page 41    Black screen instead of DVD video  Symptom  Black screen instead of DVD video    Actions        Restart the DVD player program     Close any open files  turn off the computer  and then restart the computer     Try a lower screen resolution or color depth     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     DVD movie will not play  Symptom  DVD movie will not play     Actions     e Make sure that the disc surface is clean and not scratched     e Check the disc or package for regional coding  You might need to purchase a disc with coding for  the region where you are using your computer     If these actions do not correct the problem  run the diagnostic programs  see  Lenovo Solution Center  on  page 53 for instructions   If you need technical assistance  see  Lenovo Support Web site  on page 32     No audio or intermittent audio while playing DVD movie  Symptom  No audio or intermittent audio while playing DVD movie     Actions       Check the volume control settings on your computer and on your speakers     Make sure that the disc surface is clean and not scratched      Check all cable connections t
187. voltage available at your electrical outlet  Setting the voltage selection switch incorrectly can  cause permanent damage to the computer     If your computer does not have a voltage selection switch  your computer is designed to operate only at the  voltage provided in the country or region where the computer was originally purchased     If you relocate your computer to another country  be aware of the following     e  f your computer does not have a voltage selection switch  do not connect the computer to an electrical  outlet until you have verified that the voltage provided is the same as it was in the country or region  where the computer was originally purchased     e  f your computer has a voltage selection switch  do not connect the computer to an electrical outlet until  you have verified that the voltage selection switch is set to match the voltage provided in that country  or region     If you are not sure of the voltage provided at your electrical outlet  contact your local electric company or  refer to official Web sites or other literature for travelers to the country or region where you are located        Safety inspection guide    The intent of this inspection guide is to assist you in identifying potentially unsafe conditions on these  products  Each machine  as it was designed and built  had required safety items installed to protect users  and service personnel from injury  This guide addresses only those items  However  good judgment should  be used to ide
188. y assemblies  automatically sense the voltage  some power supply assemblies are voltage specific  and some  power supply assemblies have a voltage selection switch  If your power supply assembly has a  voltage selection switch  make sure that you set the voltage selection switch to match the voltage  available at your electrical outlet  If necessary  use a ballpoint pen to slide the voltage selection switch  to the correct position     e         voltage supply range in your local country or region is 100 127 V ac  set the voltage selection  switch to 115 V     e    the voltage supply range in your local country or region is 200 240 V ac  set the voltage selection  switch to 230 V     7  Install the new power supply assembly into the chassis so that the screw holes in the power supply  assembly align with those in the chassis     8  Install and tighten the four screws to secure the power supply assembly     Note  Use only screws provided by Lenovo   9  Reconnect the power supply assembly cables to the system board and each of the drives   10  Secure the power supply assembly cables with the cable clips and ties in the chassis     What to do next   e To work with another piece of hardware  go to the appropriate section      To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Replacing the heat sink and fan assembly    Attention     Do not open your computer or attempt any repair before reading and understanding    Important 
189. you do not make this change by    pressing N  However  if you do want to change the serial number  press Y  and then type in the serial  number and press Enter       When prompted to change the machine type and model  it is suggested that you do not make this    change by pressing N  However  if you do want to change the machine type and model  press Y  and  then type in the machine type and model and press Enter       Follow the instructions on the screen to complete the update  After the update is completed  remove the    disc from the optical drive     178   ThinkCentre E73 Hardware Maintenance Manual    Updating  flashing  the BIOS from your operating system    Note  Because Lenovo makes constant improvements to its Web sites  the Web page contents are subject  to change without notice  including the contents referenced in the following procedure     To update  flash  the BIOS from your operating system  do the following     1   2     5     Go to http   www lenovo com support    Do the following to locate the downloadable files for your machine type   a  Click Download  amp  Drivers      In the left pane  click Downloads and drivers    From the Brand drop down list box  select Desktops      From the Family drop down list box  select the family name    Click Continue    From the Refine results drop down list box  select BIOS    Click the BIOS update link        fp  x           Click the TXT file that contains the instructions for updating  flashing  the BIOS from your oper
190. ypes  10AS and 10AU  87    7  Pivot the card latch to the closed position to secure the PCI Express card                                EA                         Figure 16  Installing a PCI Express card  8  Reinstall the screw to secure the PCI Express card latch in place     What to do next   e To work with another piece of hardware  go to the appropriate section     To complete the installation or replacement  go to    Completing the parts replacement    on page 122     Installing or replacing a memory module    Attention     Do not open your computer or attempt any repair before reading and understanding    Important safety information     on page 1        This section provides instructions on how to install or replace a memory module     Your computer has two slots for installing or replacing double data rate 3 unbuffered dual inline memory  modules  DDR3 UDIMMs  that provide up to a maximum of 8 GB system memory  When installing or  replacing a memory module  use 1 GB  2 GB  or 4 GB DDR3 UDIMMs in any combination up to a maximum  of 8 GB     To install or replace a memory module  do the following   1  Turn off the computer and disconnect all power cords from electrical outlets   2  Remove the computer cover  See    Removing the computer cover    on page 82   3  Lay the computer on its side for easier access to the system board   4  Locate the memory slots  See    Locating parts on the system board    on page 72     88  ThinkCentre E73 Hardware Maintenance Manual    5  R
191. ystem  board    on page 109 or    Replacing the system board    on page 159     66  ThinkCentre E73 Hardware Maintenance Manual       Chapter 8  Locations    This chapter introduces the locations of the computer hardware components        For machine types  10AS and 10AU    This section provides information to help you locate your computer connectors  components  parts on  the system board  and internal drives     Note  The components in your computer might look slightly different from the illustrations     Locating connectors  controls  and indicators on the front of your  computer    Figure 1    Front connector  control  and indicator locations    on page 67 shows the locations of the  connectors  controls  and indicators on the front of your computer                                                 7 77 7 77    2 4                       N x           Fo OZ      4                       5 2 000000   S 000  00   5 22002220202000222  Figure 1  Front connector  control         indicator locations   Ell Hard disk drive activity indicator    USB connector  USB port 1    El Power indicator      Headphone connector   El Power switch Microphone connector      Optical drive eject close button      USB connector  USB port 2     O Copyright Lenovo 2013 67    Locating connectors on the rear of your computer    Figure 2    Rear connector locations    on page 68 shows the locations of the connectors on the rear of your    computer  Some connectors on the rear of your computer are color cod
192. zed Default   3  Depending on the operating system to be installed  do one of the following     To install the Windows 8  64 bit  operating system  select Enabled     To install an operating system other than Windows 8  64 bit   select Disabled   4  Select Yes in the window displayed and press Enter to confirm your selection     5  Press F10 to save changes and exit the Setup Utility program  See  Exiting the Setup Utility program   on page 59        Exiting the Setup Utility program    After you finish viewing or changing settings  press Esc to return to the Setup Utility program main menu   You might have to press Esc several times  Do one of the following        f you want to save the new settings  press F10 to save and exit the Setup Utility program     e  f you do not want to save the settings  select Exit  gt  Discard Changes and Exit  and then press  Enter  When the Reset Without Saving window opens  select Yes  and then press Enter to exit the  Setup Utility program     e  f you want to return to the default settings  press F9 to load the default settings  and then press F10 to  save and exit the Setup Utility program     Chapter 6  Using the Setup Utility program 59    60  ThinkCentre E73 Hardware Maintenance Manual       Chapter 7  Symptom to FRU index    The Symptom to FRU index lists error symptoms and possible causes  The most likely cause is listed first   Always begin with the Chapter 4    General checkout    on page 33  You can use this index to help you decid
    
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