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        DELL Latitude E5250
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1.                                                               E   1 2 3S 4 56 x  As  peu 8      OOOOH  JEYXXOCS IX    MA 9  LIDCICIOODOCGQOCICOLCIC I o  8    i T T   T T        K      il B  j m12  22   F a are a jl  Doppi 00828      20 NW                                                                            network connector    HDMI connector    power connector    1  3  5  camera  7  9    power button    11  USB 3 0 connector with PowerShare    13  contactless smart card reader  optional           24  0 OES  0  TORO DOLO DOCU  CORRI COOODOOCONOOU QOODOOCOOODOD  TORO LEOOCOOO CODO  e     25  0 0  CCC TIU J    USB 3 0 connector  microphones  optional   camera status light  microphone  Mini DisplayPort connector  memory card reader    fingerprint reader  optional     15   17   19   21   23   25     wireless status light 16     hard drive activity light 18   speakers 20   smart card reader  optional  22   security cable slot 24     service tag label    Removing the SD Card    1     1   2     battery status light  power status light  touchpad   headset connector    dock connector  optional     Follow the procedures in Before Working Inside Your Computer     Press in on the SD card to release it from the computer     Slide the SD card out of the computer     co   e A    Installing the SD Card    Push the SD card into its slot until it clicks into place     Follow the procedures in After Working Inside Your Computer     Removing the Base Cover    1   2     Follow the procedures
2.        Installing the Display Hinges    1  Insert the display hinges into their slots on the display assembly   Tighten the screws to secure the display hinge on both sides of the display assembly   3  Install the     display bezel   display assembly  display hinge brackets  palmrest   keyboard   keyboard trim  hard drive assembly  memory    battery  base cover               Faro ano    4  Follow the procedures in After Working Inside Your Computer        Removing the Camera    1  Follow the procedures in Before Working Inside Your Computer        Remove the   a  base cover  b  battery  C  display bezel  d  display panel  3  Perform the following steps to remove the camera from the computer   a  Lift the camera to release it from the adhesive  1    b  Disconnect the camera cable from its connector  2    c  Remove the camera from the computer  3      55          Installing the Camera    1  Insert the camera to its place on the display assembly   2  Connect the camera cable to its connector   3  Install the    a  display panel   b  display bezel    c  battery  d  base cover    4  Follow the procedures in After Working Inside Your Computer        Removing the eDP Cable    1  Follow the procedures in Before Working Inside Your Computer        2  Remove the    base cover   battery   memory   hard drive assembly  keyboard trim  keyboard   palmrest  display hinge brackets  display assembly  display bezel   display panel   3  Perform the following steps to remove the eDP cable from t
3.    Keyboard Illumination    Keyboard Backlight with AC    Unobtrusive Mode    Miscellaneous Devices    Table 3  Video  Option  LCD Brightness    Description    NOTE  USB keyboard and mouse always work in the BIOS setup  irrespective of these settings     This field configures the USB PowerShare feature behavior  This option  allows you to charge external devices using the stored system battery  power through the USB PowerShare port     This field enables or disables the integrated audio controller  By default   the Enable Audio option is selected     This field lets you choose the operating mode of the keyboard  illumination feature        The keyboard brightness level can be set from 0  to 100     e Disabled  e Dim  e Bright    This option is disabled by default        The Keyboard Backlight with AC option does not affect the main  keyboard illumination feature  Keyboard Illumination will continue to  support the various illumination levels  This field has an effect when the  backlight is enabled     This option  when enabled  pressing Fn F7 turns off all light and sound  emissions in the system  To resume normal operation  press Fn F7  again  This option is disabled by default     Allows you to enable or disable the following devices     e Enable Microphone   e Enable Camera   e Enable Hard Drive Free Fall Protection  e Enable Media Card   e Disable Media Card    K   NOTE  All devices are enabled by default     You can also enable or disable Media Card     Description    Al
4.   If there are any issues  error codes are displayed   Note the error code and contact Dell     evice Status Lights    Table 29  Device Status Lights    o Turns on when you turn on the computer and blinks when the computer is in a power  management mode    9 Turns on when the computer reads or writes data    Turns on steadily or blinks to indicate battery charge status      qp Turns on when wireless networking is enabled        The device status LEDs are usually located either on the top or left side of the keyboard  They display the  storage  battery and wireless devices connectivity and activity  Apart from that they can be useful as a  diagnostic tool when there s a possible failure to the system     The following table lists how to read the LED codes when possible errors occur     Table 30  LED Lights    Storage LED Power LED Wireless LED Fault Description       Blinking Solid Solid A possible processor failure has occurred    Solid Blinking Solid The memory modules are detected but encountered  an error    Blinking Blinking Blinking A system board failure has occurred    Blinking Blinking Solid A possible graphics card video failure has occurred    Blinking Blinking Off System failed on hard drive initialization OR System  failed in Option ROM initialization    Blinking Off Blinking The USB controller encountered a problem during  initialization    Solid Blinking Blinking No memory modules are installed detected     60    Storage LED Power LED Wireless LED Fault Descript
5.   Voltage 11 1 VDC   Temperature range   Operating e Charge  0   C to 50   C      Discharge  0   C to 70   C    e Operating  0   to 35   C  32   to 95   F     Non Operating   40   C to 65   C    40   F to 149   F     Coin cell battery 3 V CR2032 lithium coin cell    Table 26  AC Adapter    Feature    Type    Input voltage   Input current  maximum    Input frequency   Output current   Rated output voltage   Temperature range   Operating  Non Operating    Table 27  Physical  Feature  Height  Front  Back  Width  Depth  Weight    Specification    65 W and 90 W    233 00 mm  9 17 inches   7 05 mm  0 27 inch   94 80 mm  3 73 inches   340 g  0 75 lb    7 4 VDC    NOTE  90 W is shipped only to    India     100 VAC to 240 VAC  15A   50 Hz to 60 Hz   3 34 A and 4 62 A  19 5     1 0 VDC    0   C to 40   C  32   F to 104   F        40   C to 70   C   40   F to 158   F     W O Touch    20 50 mm  0 80 inch   22 70 mm  0 89 inch   310 50 mm  12 22 inches   212 80 mm  8 38 inches   3 44 Ib  1 56 kg     With Touch    20 50 mm  0 80 inch   24 60 mm  0 97 inch   310 50 mm  12 22 inches   212 80 mm  8 38 inches   3 93 lb  1 78 kg     57    Table 28  Environmental       Feature Specification   Temperature   Operating O   C to 35   C  32   F to 95   F   Storage    40   C to 65   C   40   F to 149   F     Relative humidity   maximum      Operating  Storage  Altitude  maximum      Operating    Non Operating    Airborne contaminant level    58    10   to 90    non condensing     5   to 95    non cond
6.   ensure that both connectors are correctly oriented and aligned     NOTE  The color of your computer and certain components may appear differently than shown in  this document     To avoid damaging your computer  perform the following steps before you begin working inside the  computer     1     Ensure that your work surface is flat and clean to prevent the computer cover from being scratched     2  Turn off your computer  see Turning off Your Computer         e    10   11     12     If the computer is connected to a docking device  docked   undock it     CAUTION  To disconnect a network cable  first unplug the cable from your computer and  then unplug the cable from the network device    Disconnect all network cables from the computer    Disconnect your computer and all attached devices from their electrical outlets    Close the display and turn the computer upside down on a flat work surface   NOTE  To avoid damaging the system board  you must remove the main battery before you  service the computer    Remove the base cover    Remove the main battery    Turn the computer top side up    Open the display    Press and hold the power button for few seconds  to ground the system board     CAUTION  To guard against electrical shock  always unplug your computer from the  electrical outlet before opening the display     CAUTION  Before touching anything inside your computer  ground yourself by touching an  unpainted metal surface  such as the metal at the back of the computer  Whi
7.  After Working Inside Your Computer     Removing the WLAN Card   WiGig Card    K   NOTE  WiGig card is optional           1  Follow the procedures in Before Working Inside Your Computer    2  Remove the base cover    3  Perform the following steps to remove the WLAN card   a  Disconnect the WLAN cables from their connectors on the WLAN card  1    b  Remove the screw that secures the WLAN card to the computer  2            4  Remove the WLAN card from the computer        24    Installing the WLAN Card   WiGig Card    Place the WLAN card into its slot on the computer    Tighten the screw to secure the WLAN card to the computer   Connect the WLAN cables to their connectors on the WLAN Card   Install the base cover    Follow the procedures in After Working Inside Your Computer     Gy Uo       Removing the WWAN Card    1  Follow the procedures in Before Working Inside Your Computer        2  Remove the base cover    3  Perform the following steps to remove the WWAN card   a  Disconnect the WWAN cables from their connectors on the WWAN card  1    b  Remove the screw that secures the WWAN card to the computer  2      Ed Nee AN  WV WM WW cao     ANN eas       4  Remove the WWAN card from the computer        25    Installing the WWAN Card    Place the WWAN card into its slot on the computer    Tighten the screw to secure the WWAN card to the computer   Connect the WWAN cables to their connectors on the WWAN Card   Install the base cover    Follow the procedures in After Working Inside
8.  Enable Network    This option is enabled by default     Option    Fn Key Emulation    Fn Lock Options    MEBx Hotkey    Fastboot    Extended BIOS POST Time    Table 9  Virtualization Support  Option    Virtualization    VT for Direct I O    Trusted Execution    Description    Allows you to set the option where the   Scroll Lock   key is used to  simulate the   Fn   key feature     Enable Fn Key Emulation  default     Allows you to let hot key combinations   Fn       Esc   toggle the primary  behavior of F1   F12  between their standard and secondary functions  If  you disable this option  you cannot toggle dynamically the primary  behavior of these keys  The available options are     e Fn Lock     This option is selected by default   e Lock Mode Disable   Standard    Lock Mode Enable   Secondary    Allows you to specify whether the MEBx Hotkey function should enable   during the system boot     Default Setting  Enable MEBx Hotkey    Allows you to speed up the boot process by bypassing some of the  compatibility steps  The options are    e Minimal   e Thorough  default    e Auto    Allows you to create an additional pre boot delay  The options are   e Oseconds  This option is enabled by default    e 5 seconds   e 10 seconds    Description    Allows you to enable or disable the Intel Virtualization Technology   Enable Intel Virtualization Technology  default     Enables or disables the Virtual Machine Monitor  VMM  from utilizing the  additional hardware capabilities provided 
9.  Information  Displays BIOS Version  Service Tag  Asset Tag  Ownership  Tag  Ownership Date  Manufacture Date  and the Express Service Code     Memory Information  Displays Memory Installed  Memory Available  Memory  Speed  Memory Channels Mode  Memory Technology  DIMM A Size  DIMM B Size     Processor Information  Displays Processor Type  Core Count  Processor ID   Current Clock Speed  Minimum Clock Speed  Maximum Clock Speed  Processor  L2 Cache  Processor L5 Cache  HT Capable  and 64 Bit Technology     Device Information  Displays Primary Hard Drive  Dock eSATA Device  LOM MAC  Address  Video Controller  Video BIOS Version  Video Memory  Panel Type  Native  Resolution  Audio Controller  Wi Fi Device  WiGig Device  Cellular Device   Bluetooth Device     Displays the battery status and the type of AC adapter connected to the computer    Boot Sequence Allows you to change the order in which    the computer attempts to find an  operating system  The options are     e UEFI  LITEON IT LCS 256L9S 11 2 5    7MM 256 GB  Boot List Option Allows you to change the boot list option     Legacy  e UEFI    This option allows you the legacy option ROMs to load  By default  the Enable Legacy  Option ROMs is disabled     Allows you to change the date and time     Table 2  System Configuration    Option  Integrated NIC    Description    Allows you to configure the integrated network controller  The options    are   e Disabled  e Enabled    43    Option    Parallel Port    Serial Port    SATA 
10.  Realtek ALC 32535    Stereo conversion    Interface   Internal  External  Speakers  Internal speaker amplifier    Volume controls    Table 17  Video    Digital Audio out through HDMI   up to 7 1 compressed  and un compressed audio    high definition audio codec  Stereo headset   mic combo  two   2 W  RMS  per channel    hot keys       Feature Specification  Type integrated on system board  hardware accelerated  Controller   UMA  Intel 4th Generation e Celeron Intel HD Graphics  Processors e i3 i5 Intel HD Graphics 4400  Intel 5th Generation   Celeron Intel HD Graphics  Processors e  i5 i5  i7 Intel HD Graphics 5500  Data bus Integrated video    External display support    54    e 19 pin HDMI connector  e 20 pin mDP connector    Table 18  Camera    Features Specification       Camera Resolution  HD Panel 1280 x 720 pixels  FHD Panel 1920 x 1080 pixels    Video Resolution  maximum        HD Panel 1280 x 720 pixels  FHD Panel 1920 x 1080 pixels  Diagonal viewing angle 74     Table 19  Communications       Features Specification  Network adapter 10 100 1000 Mb s Ethernet  RJ 45   Wireless internal wireless local area network  WLAN  and wireless    wide area network  WWAN    K   NOTE  WWAN is optional     Table 20  Ports and Connectors       Features Specification  Audio Stereo headset   mic combo  Video e one 19 pin HDMI connector    e 20 pin mDP connector    Network adapter one RJ 45 connector   USB Three USB 3 0  One USB BC v1 2 compliant connector  Memory card reader supports
11.  Your Computer     apwy a       Removing the Display Hinge Brackets    1  Follow the procedures in Before Working Inside Your Computer        Remove the     base cover    battery    a  b  c  memory  d  hard drive assembly  e  f   9         keyboard trim  keyboard    palmrest  3  Remove the screws that secure the display hinge brackets to the back of the computer        4  Open the display and perform the following steps   a  Remove the screws that secure the display hinge brackets to the front of the computer  1    b  Pull the display hinge brackets to remove from the computer  2      26       Installing the Display Hinge Brackets    1     4     Insert the display hinge brackets into their slots on the computer   Tighten the screws at the front and back of the computer to secure the display hinge brackets   Install the      palmrest      keyboard    a  b  c  keyboard trim   d  hard drive assembly  e   f    g         memory  battery    base cover    Follow the procedures in After Working Inside Your Computer        Removing the Display Assembly    1   2     Follow the procedures in Before Working Inside Your Computer        Remove the    base cover   battery   keyboard trim  keyboard   palmrest   f  display hinge brackets    Disconnect the WLAN and WWAN cables from their connectors  1  and release the cables through  their routing channels  2      panov       27       4  Disconnect the display cable from the system board  To disconnect the display cable   a  Remove the screw t
12.  adapter is removed during Standby  the  system setup will remove power from all of the USB ports to  conserve battery power     e Enable USB Wake Support    Default Setting  The option is disabled     Allows you to enable or disable the feature that automatically switches  from wired or wireless networks without depending on the physical  connection    e Control WLAN Radio   e Control WWAN Radio    Default Setting  The option is disabled     Allows you to enable or disable the feature that powers on the computer  from the Off state when triggered by a LAN signal      Disabled  This option is enabled by default     LAN Only   e WLAN Only     LAN or WLAN    This option lets you block entering to sleep  S3 state  in Operating  System environment   Block Sleep  S3 state    This option is disabled by default     This option enables you to minimize the AC power consumption during  the peak power times of day  After you enable this option  your system  runs only in battery even if the AC is attached     This option enables you to maximize the battery health  By enabling this  option  your system uses the standard charging algorithm and other  techniques  during the non work hours to improve the battery health     49    Option    Primary Battery Charge  Configuration    Intel Smart Connect  Technology    Table 8  POST Behavior  Option  Adapter Warnings    Keypad  Embedded     Mouse Touchpad    Numlock Enable    50    Description    Disabled  default     Allows you to select the char
13.  in Before Working Inside Your Computer        Perform the following steps to remove the base cover from the computer     a  Remove the screws that secure the base cover to the computer   b  Lift the base cover from its edge and remove the base cover from the computer        K   NOTE  You may need a sharp tool to pry the base cover from its edge     Installing the Base Cover    1  Place the base cover to align with the screw holders on the computer   2  Tighten the screws to secure the base cover to the computer   3  Follow the procedures in After Working Inside Your Computer        Removing the Battery    1  Follow the procedures in Before Working Inside Your Computer     2  Remove the base cover   3  Disconnect the battery cable from its connector  1  and release the cable from its routing channel  2            4  Perform the following steps     a  Remove the screw that secures the battery to the computer  1    b  Lift and push to remove the battery from the computer  2   3         Installing the Battery    Insert the battery into its place on the computer    Route the battery cable through its routing channel    Tighten the screw to secure the battery to the computer   Connect the battery cable to its connector on the system board   Install the base cover    Follow the procedures in After Working Inside Your Computer     Ov Ur WU D  Ft       Removing the Hard Drive Assembly    1  Follow the procedure in Before Working Inside Your Computer        2  Remove the   a  base cov
14.  up to SD4 0   Micro Subscriber Identity Module  uSIM  one  optional    card    K   NOTE  Removal of base cover is required   Docking port one  optional     Table 21  Contactless Smart Card    Feature Specification       Supported Smart Cards Technologies BTO with USH    55    Table 22  Display  Feature  Type  Dimensions   Height  Width    Diagonal    Active area   X Y     Maximum  resolution    Maximum  Brightness    Refresh rate    Minimum  Viewing Angles     Horizontal  Vertical    Pixel pitch    Table 23  Keyboard    Feature    Number of keys    Specification    Non Touch HD Anti Glare    5 00 mm  0 12 inch     300 40 mm x 181 40 mm  11 83 inches x  7 14 inches     317 50 mm  12 50 inches   276 61 mm x 155 52 mm  10 89 inches x    6 12 inches   1366 x 768    200 nits    60 Hz    40 40  10 30  0 202 x 0 202    Backlit KB    Touch FHD  E2E     5 95 mm  0 23 inch     302 30 mm x 194 39 mm  11 89 inches x  7 65 inches     317 50 mm  12 50 inches   276 61 mm x 155 52 mm    1920 x 1080    300 nits    60 Hz    80 80  80 80  0 144 x 0 144    Specification  Non Backlit KB    United States  106 keys  United Kingdom  107 keys  Brazil  109 keys  and    Table 24  Touchpad    Japan  110 keys       Feature Specification  Active Area   X axis 99 50 mm  Y axis 53 00 mm    Table 25  Battery  Feature    Type    Dimensions     56    3 Cell  38 Whr     4 Cell  51 Whr     Feature    Depth 177 50 mm  6 98 inches   Height 7 05 mm  0 27 inch   Width 94 80 mm  3 73 inches   Weight 265 g  0 58 lb  
15. Board    1  Place the SmartCard reader board into its slot on the palmrest   Tighten the screws to secure the SmartCard reader board to the palmrest    3  Fix the SmartCard reader cable and connect the SmartCard reader cable to its connector on the  USH board    4  Install the     a  palmrest  b  keyboard  c  keyboard trim  d  battery  e  base cover  5  Follow the procedures in After Working Inside Your Computer        Removing the USH Board    K   NOTE  This component is sold separately and is not shipped with the computer     1  Follow the procedures in Before Working Inside Your Computer        2  Remove the     base cover    a  b  battery   c  hard drive assembly  d   e   f          keyboard trim    keyboard  palmrest  3  Perform the following steps to remove the USH board   a  Disconnect all the cables from the USH board  1   2    b  Remove the screw that secures the USH board to the palmrest  3    c  Remove the USH board from the palmrest  4      19          Installing the USH Board    Place the USH Board on the palmrest    Tighten the screw to secure the USH board to the palmrest   Connect all the cables to the USH board    Install the    a  palmrest   b  keyboard   C  keyboard trim  d   e   f     BUMP      hard drive assembly      battery  base cover       5  Follow the procedures in After Working Inside Your Computer        Removing the Finger Print Reader Board    K   NOTE  This component is sold separately and is not shipped with the computer     1  Follow the proc
16. Dell Latitude E5250   5250  Owner s Manual    Notes  Cautions  and Warnings    K   NOTE  A NOTE indicates important information that helps you make better use of your computer     AN CAUTION  A CAUTION indicates either potential damage to hardware or loss of data and tells you  how to avoid the problem     A WARNING  A WARNING indicates a potential for property damage  personal injury  or death     Copyright    2014 Dell Inc  All rights reserved  This product is protected by U S  and international copyright and  intellectual property laws  Dell    and the Dell logo are trademarks of Dell Inc  in the United States and or other  jurisdictions  All other marks and names mentioned herein may be trademarks of their respective companies     2014   12    Rev  A01    Working on Your Computer    Before Working Inside Your Computer    Use the following safety guidelines to help protect your computer from potential damage and to help to  ensure your personal safety  Unless otherwise noted  each procedure included in this document assumes  that the following conditions exist     e You have read the safety information that shipped with your computer     e Acomponent can be replaced or  if purchased separately  installed by performing the removal  procedure in reverse order     A  A  A     gt   gt     A    Ea    WARNING  Disconnect all power sources before opening the computer cover or panels  After you  finish working inside the computer  replace all covers  panels  and screws before conn
17. Operation    Drives    SMART Reporting    USB Configuration    44    Description      Enabled w PXE  This option is enabled by default     Allows you to configure the parallel port on the docking station  The  options are     e Disabled     AT  This option is enabled by default   e PS2   e ECP    Allows you to configure the integrated serial port  The options are   e Disabled  e COMI  This option is enabled by default     e COM2  e COM3  e COMA    Allows you to configure the internal SATA hard drive controller  The  options are    e Disabled   e AHCI   e RAID On  This option is enabled by default     Allows you to configure the SATA drives on board  All drives are enabled  by default  The options are     e SATA 0  e SATA 1  e SATA 2  e SATA 3    This field controls whether hard drive errors for integrated drives are  reported during system startup  This technology is part of the SMART   Self Monitoring Analysis and Reporting Technology  specification  This  option is disabled by default     e Enable SMART Reporting    This field configures the integrated USB controller  If Boot Support is  enabled  the system is allowed to boot any type of USB Mass Storage  Devices  HDD  memory key  floppy      If USB port is enabled  device attached to this port is enabled and  available for OS     If USB port is disabled  the OS cannot see any device attached to this  port       Enable Boot Support  e Enable External USB Port  e Enable USB3 0 Controller    Option    USB PowerShare    Audio 
18. The installed processor  supports two cores  If you enable Multi Core Support  two cores will be  enabled  If you disable Multi Core Support  one core will be enabled     e Enable Multi Core Support   Default Setting  The option is enabled    Allows you to enable or disable the Intel SpeedStep feature    e Enable Intel SpeedStep   Default Setting  The option is enabled    Allows you to enable or disable the additional processor sleep states   e C states    Default Setting  The option is enabled     Allows you to enable or disable the Intel TurboBoost mode of the  processor       Enable Intel TurboBoost  Default Setting  The option is enabled   Allows you to enable or disable the Hyper Threading in the processor     e Disabled  e Enabled    Default Setting  The option is enabled     Table 7  Power Management  Option  AC Behavior    Auto On Time    USB Wake Support    Wireless Radio Control    Wake on LAN WLAN    Block Sleep    Peak Shift    Advanced Battery Charge  Configuration    Description    Allows you to enable or disable the computer from turning on  automatically when an AC adapter is connected   Default Setting  Wake on AC is not selected     Allows you to set the time at which the computer must turn on  automatically  The options are    e Disabled  default    e Every Day   e Weekdays     Select Days    Allows you to enable USB devices to wake the system from Standby     K   NOTE  This feature is only functional when the AC power adapter is  connected  If the AC power
19. by Intel   Virtualization  technology for direct I O    Enable VT for Direct I O   enabled by default     This option specifies whether a Measured Virtual Machine Monitor   MVMM  can utilize the additional hardware capabilities provided by Intel  Trusted Execution Technology  The TPM virtualization Technology  and  Virtualization technology for direct I O must be enabled to use this  feature        51    Option    Table 10  Wireless  Option    Wireless Switch    Wireless Device Enable    Table 11  Maintenance  Option  Service Tag    Asset Tag    Table 12  System Logs  Option   BIOS Events  Thermal Events    Power Events    52    Description    Trusted Execution   disabled by default    Description    Allows to set the wireless devices that can be controlled  by the wireless switch  The options are     e WWAN   e GPS  on WWAN Module   e WLAN WiGig   e Bluetooth    All the options are enabled by default     NOTE  For WLAN and WiGig enable or disable  controls are tied together and they cannot be  enabled or disabled independently     Allows you to enable or disable the internal wireless  devices     e WWAN   GPS  e WLAN   WiGig  e Bluetooth    All the options are enabled by default     Description  Displays the Service Tag of your computer     Allows you to create a system asset tag if an asset tag is not already set   This option is not set by default     Description  Allows you to view and clear the System Setup  BIOS  POST events   Allows you to view and clear the System Set
20. ecting to  the power source     WARNING  Before working inside your computer  read the safety information that shipped with  your computer  For additional safety best practices information  see the Regulatory Compliance  Homepage at www dell com regulatory_compliance    CAUTION  Many repairs may only be done by a certified service technician  You should only  perform troubleshooting and simple repairs as authorized in your product documentation  or as  directed by the online or telephone service and support team  Damage due to servicing that is  not authorized by Dell is not covered by your warranty  Read and follow the safety instructions  that came with the product     CAUTION  To avoid electrostatic discharge  ground yourself by using a wrist grounding strap or  by periodically touching an unpainted metal surface  such as a connector on the back of the  computer     CAUTION  Handle components and cards with care  Do not touch the components or contacts  on a card  Hold a card by its edges or by its metal mounting bracket  Hold a component such as a  processor by its edges  not by its pins     CAUTION  When you disconnect a cable  pull on its connector or on its pull tab  not on the cable  itself  Some cables have connectors with locking tabs  if you are disconnecting this type of cable   press in on the locking tabs before you disconnect the cable  As you pull connectors apart  keep  them evenly aligned to avoid bending any connector pins  Also  before you connect a cable 
21. edures in Before Working Inside Your Computer        2  Remove the   a  base cover  b  battery  c  keyboard trim  d  keyboard  e  palmrest  3  Perform the following steps to remove the finger print reader board   a  Remove the screw to release the metal bracket that secures the finger print reader board to the  palmrest  1   2    b  Disconnect the finger print reader cable from the finger print reader board  3   4    c  Remove the finger print reader board from the palmrest  5      20          Installing the Finger Print Reader Board    1  Insert the finger print reader board into its place on the palmrest    2  Connectthe finger print reader cable to the finger print reader board    3   Place the metal bracket on the finger print reader board and tighten the screw to secure the finger   print reader board    4  Install the   a  keyboard trim  b  keyboard  c  palmrest  d  battery   e  base cover    5  Follow the procedures in After Working Inside Your Computer        Removing the LED Board    1  Follow the procedures in Before Working Inside Your Computer        2  Remove the   a  base cover  b  battery  C  keyboard trim  d  keyboard  e  palmrest  3   Perform the following steps to remove the LED board   a  Disconnect the LED board cable from its connector on the LED board  1   2    b  Remove the screw that secures the LED board to the palmrest  3    c  Remove the LED board from the palmrest  4      21    vem o   SEE 3     A       K e          Installing the LED Board    Inse
22. efore Working Inside Your Computer        Remove the    base cover   battery   memory   hard drive assembly   keyboard trim   keyboard   palmrest   display hinge brackets   display assembly     system fan   3  Disconnect the speaker cable from its connector on the system board  1  and release the speaker  cables from their routing channels  2               ro Faro ano         41    4  Perform the following steps to remove the speakers from the computer     a  Remove the screws that secure the speakers to the computer  1    b  Remove the speakers from the computer  2         Installing the Speakers    Place the speakers into their slots on the computer    Tighten the screws to secure the speakers to the computer   Route the speaker cables through their routing channels   Connect the speaker cable to its connector on the system board   Install the     system fan   display assembly  display hinge brackets  palmrest   keyboard    keyboard trim  hard drive assembly    memor    battery  base cover    gd wmrb          7  c75o07590o00909w         6  Follow the procedures in After Working Inside Your Computer     42    5    System Setup Options    NOTE  Depending on the computer and its installed devices  the items listed in this section may or    may not appear     Table 1  General  Option    System  Information    Battery  Information    Boot Sequence    Advanced Boot  Options    Date Time    Description    This section lists the primary hardware features of your computer     System
23. ensing     O m to 3048 m  0 ft to 10 000 ft   0   to 35  C    O m to 10 668 m  0 ft to 35 000 ft   G1 as defined by ISA 71 04 1985    5  Diagnostics    If you experience a problem with your computer  run the ePSA diagnostics before contacting Dell for  technical assistance  The purpose of running diagnostics is to test your computer s hardware without  requiring additional equipment or risking data loss  If you are unable to fix the problem yourself  service  and support personnel can use the diagnostics results to help you solve the problem     Enhanced Pre Boot System Assessment  ePSA   Diagnostics  The ePSA diagnostics  also known as system diagnostics  performs a complete check of your hardware     The ePSA is embedded with the BIOS and is launched by the BIOS internally  The embedded system  diagnostics provides a set of options for particular devices or device groups allowing you to        e Run tests automatically or in an interactive mode  e Repeat tests  e Display or save test results    e Run thorough tests to introduce additional test options to provide extra information about the failed  device s     e View status messages that inform you if tests are completed successfully    View error messages that inform you of problems encountered during testing    A CAUTION  Use the system diagnostics to test only your computer  Using this program with other  computers may cause invalid results or error messages     K   NOTE  Some tests for specific devices require user inte
24. er  b  battery  3  Perform the following steps   a  Disconnect the hard drive cable from its connector on the system board  1     b  Remove the screws that secure the hard drive assembly to the computer  2      10       5  Pull to release the hard drive cable from its connector     11    6     Ae    Remove the screws that secure the hard drive bracket to the hard drive  1  and remove the hard drive  from the hard drive bracket  2      e          Installing the Hard Drive Assembly    1     Oo ur dw m    12    Place the hard drive bracket on the hard drive to align the screw holders and tighten the screws to  secure the hard drive bracket     Connect the hard drive cable to its connector on the hard drive    Place the hard drive assembly into its slot on the computer    Connect the hard drive cable to its connector on the system board   Tighten the screws to secure the hard drive assembly to the computer   Install the     a  battery  b  base cover    7  Follow the procedures in After Working Inside Your Computer        Removing the Memory    1  Follow the procedures in Before Working Inside Your Computer        2  Remove the   a  base cover    b  battery  3  Pry the clips securing the memory module until the memory pops up and remove the memory from  the system board     o ww       uwe             Installing the Memory    1  Insert the memory on the memory socket until the clips secure the memory   2  Install the     a  battery  b  base cover    3  Follow the procedures in Afte
25. ging mode for the battery  The options are   e Adaptive  e Standard   Fully charges your battery at a standard rate     e ExpressCharge   The battery charges over a shorter period of time  using Dell s fast charging technology  This option is enabled by  default     e Primarily AC use  e Custom    If Custom Charge is selected  you can also configure Custom Charge  Start and Custom Charge Stop     NOTE  All charging mode may not be available for all the batteries   To enable this option  disable the Advanced Battery Charge  Configuration option     This option  if enabled  periodically senses the nearby wireless  connections  while the system is in sleep state  You can use this option  to synchronize the email or other social media applications that are  open  when the system enters the sleep state     Description   Allows you to enable or disable the system setup  BIOS  warning  messages when you use certain power adapters    Default Setting  Enable Adapter Warnings    Allows you to choose one of two methods to enable the keypad that is  embedded in the internal keyboard     e Fn Key Only  This option is enabled by default   e ByNumlock    NOTE  When setup is running  this option has no effect  Setup  works in Fn Key Only mode     Allows you to define how the system handles mouse and touch pad  input  The options are       Serial Mouse  e PS2 Mouse  e Touchpad   PS 2 Mouse  This option is enabled by default     Allows you to enable the Numlock option when the computer boots  
26. hat secures the display cable bracket to the computer  1    b  Remove the display cable bracket to access the display cable  2    c  Disconnect the display cable from the system board  3         5  Release the display cable from its routing channel     28    6  Remove the screws that secure the display assembly  1  and lift the display assembly to remove it  from the computer  2         Installing the Display Assembly    Place the display assembly to align with the screw holders on the computer   Route the WWAN  WLAN  and display cables through their routing channels   Tighten the screws to secure the display assembly to the computer   Connect the WWAN and WLAN cables to their connectors     Connect the display cable to the system board  place the display cable bracket over the connector   and tighten the screw to secure the display cable to the computer     6  Install the   a  display hinge brackets  b  palmrest  C  keyboard       vbw       29    d  keyboard trim    e  battery  f  base cover    7  Follow the procedures in After Working Inside Your Computer        Removing the Display Bezel    1  Follow the procedures in Before Working Inside Your Computer   2  Prythe edges to release the display bezel from the display assembly           3  Remove the display bezel from the display assembly        Installing the Display Bezel    1  Place the display bezel on the display assembly    2  Starting from the top corner  press on the display bezel and work around the entire bezel un
27. he computer           aT Faro ano  D    a  Disconnect the eDP cable from its connector  1    b  Peel the eDP cable  2  and remove the eDP cable from the computer  3      34       Installing the eDP cable    1     4     Fix the eDP cable in its place on the display assembly     Connect the eDP cable to its connector   Install the        ccspo  oncow      display panel  display bezel  display assembly  display hinge brackets  palmrest   keyboard   keyboard trim  hard drive assembly  memory   battery   base cover             Follow the procedures in After Working Inside Your Computer     Removing the System Fan    1     Follow the procedures in Before Working Inside Your Computer        Remove the     base cover    a   b  battery  G   d  e    keyboard trim      keyboard    palmrest    Disconnect the system fan cable from its connector on the system board     35       4  Perform the following steps to remove the system fan from the computer     a  Remove the screws that secure the system fan to the computer  1    b  Remove the system fan from the computer  2         Installing the System Fan    Place the system fan into its slot on the computer   Tighten the screws to secure the system fan to the computer   Connect the system fan cable to its connector on the system board   Install the      palmrest    a  b  keyboard   C  keyboard trim  d   e    AWN PE      battery  base cover    5  Follow the procedures in After Working Inside Your Computer        36    Removing the Coin Cell Ba
28. ion       Blinking Solid Blinking The display encountered a problem during  initialization    Off Blinking Blinking The modem is preventing the system from completing  POST   Off Blinking Off Memory failed to initialize or memory is unsupported     Battery Status Lights    If the computer is connected to an electrical outlet  the battery light operates as follows     Alternately An unauthenticated or unsupported non Dell AC adapter is attached to your  blinking amber laptop    light and white   light    Alternately Temporary battery failure with AC adapter present   blinking amber   light with   steady white   light    Constantly Fatal battery failure with AC adapter present   blinking amber  light    Light off Battery in full charge mode with AC adapter present   White light on Battery in charge mode with AC adapter present     61    6    Contacting Dell    K   NOTE  If you do not have an active Internet connection  you can find contact information on your  purchase invoice  packing slip  bill  or Dell product catalog     Dell provides several online and telephone based support and service options  Availability varies by  country and product  and some services may not be available in your area  To contact Dell for sales   technical support  or customer service issues     1  Go to dell com support    2  Select your support category    3  Verify your country or region in the Choose a Country Region drop down list at the bottom of the  page    4  Select the appropriate service 
29. le you work   periodically touch an unpainted metal surface to dissipate static electricity  which could  harm internal components     Remove any installed ExpressCards or Smart Cards from the appropriate slots     Turning Off Your Computer    A    1     CAUTION  To avoid losing data  save and close all open files and exit all open programs before  you turn off your computer     Shut down the operating system   e In Windows 8 1         Using a touch enabled device     a  Swipe in from the right edge of the screen  opening the Charms menu and select  Settings     l  b  Select the O and then select Shut down     Or    l    On the Home screen  touch the O and then select Shut down         Using a mouse   a  Point to upper right corner of the screen and click Settings       b  Clickthe and select Shut down     Or    l    On the Home screen  click O and then select Shut down     e  n Windows 7       Click start   2  Click Shut Down     or    Click start      2  Click the arrow in the lower right corner of the Start menu as shown below  and then click   9  a  Shut Down    2  Ensure that the computer and all attached devices are turned off  If your computer and attached  devices did not automatically turn off when you shut down your operating system  press and hold  the power button for about 6 seconds to turn them off     After Working Inside Your Computer    After you complete any replacement procedure  ensure you connect any external devices  cards  and  cables before turning on 
30. lows you to set the display brightness depending up on the power  source  On Battery and On AC      K   NOTE  The Video setting will only be visible when a video card is installed into the system     45    Table 4  Security  Option    Admin Password    System Password    Internal HDD 1 Password    Strong Password    Password Configuration    Password Bypass    Password Change    Non Admin Setup Changes    TPM Security    46    Description  Allows you to set  change  or delete the administrator  admin  password     NOTE  You must set the admin password before you set the system  or hard drive password  Deleting the admin password automatically  deletes the system password and the hard drive password     K   NOTE  Successful password changes take effect immediately     Default Setting  Not set    Allows you to set  change or delete the system password   K   NOTE  Successful password changes take effect immediately     Default Setting  Not set    Allows you to set  change or delete the password on the system s  internal hard disk drive     K   NOTE  Successful password changes take effect immediately     Default Setting  Not set    Allows you to enforce the option to always set strong passwords   Default Setting  Enable Strong Password is not selected     NOTE  If Strong Password is enabled  Admin and System passwords  must contain at least one uppercase character  one lowercase  character and be at least 8 characters long     Allows you to determine the minimum and maximum leng
31. o align with the screw holders on the computer   2  Tighten the screws to secure the system board to the computer   3  Connect the following cables to their connectors on the system board     a  speaker  b  power connector  C  Coin cell battery    4  Install the   a  display assembly    59    display hinge brackets  palmrest   keyboard   keyboard trim  hard drive assembly  memory    battery  base cover      SDcard  5  Follow the procedures in After Working Inside Your Computer            pro moa       Removing the Heatsink    1  Follow the procedures in Before Working Inside Your Computer        2  Remove the    base cover   battery   memory   keyboard trim  keyboard   palmrest  display hinge brackets  display assembly  system fan   system board   3  Perform the following steps to remove the heatsink from the system board          Bspo o onco      a  Remove the screws that secure the heatsink on the system board  1    b  Remove the heatsink from the system board  2         Installing the Heatsink    1  Place the heatsink on the system board and align it with the screw holders   2  Tighten the screws to secure the heatsink to the system board     40       Install the     system board  system fan   display assembly  display hinge brackets  palmrest   keyboard   keyboard trim  hard drive assembly  memory   battery   base cover          zxU cspo oongco      4  Follow the procedures in After Working Inside Your Computer        Removing the Speakers    1  Follow the procedures in B
32. or support link based on your need     62    
33. r Working Inside Your Computer        Removing the Keyboard Trim    1  Follow the steps in Before Working Inside Your Computer        2  Prythe keyboard trim from its edges        13    K   NOTE  You may need a sharp tool to pry the keyboard trim from its edges     3  Remove the keyboard trim from the keyboard        Installing the Keyboard Trim    1  Insert the keyboard trim to the keyboard until it snaps in its place   2  Follow the procedures in After Working Inside Your Computer        Removing the Keyboard    1  Follow the procedures in Before Working Inside Your Computer        2  Remove the   a  base cover  b  battery  c  keyboard trim  3   Disconnect the keyboard cable from its connector on the system board        4  Remove the screws that secure the keyboard to the computer     14       5  Remove the keyboard from the computer           Installing the Keyboard    Place the keyboard to align with the screw holders on the computer   Connect the keyboard cable to its connector on the system board   Tighten the screws to secure the keyboard to the computer    Install the    a  keyboard trim    b  battery  C  base cover    5  Follow the procedures in After Working Inside Your Computer     PWN PF       Removing the Palmrest    1  Follow the procedures in Before Working Inside Your Computer        2  Remove the     15    base cover   battery   keyboard trim   keyboard   3  Remove the screws that secure the palmrest to the computer     ao 07       4  Flip the computer and pe
34. raction  Always ensure that you are present  at the computer terminal when the diagnostic tests are performed     You can launch the ePSA diagnostics by two ways     1  Power on the computer   As the computer boots  press the   F12   key as the Dell logo appears       Onthe boot menu screen  select the Diagnostics option   The Enhanced Pre boot System Assessment window displays  listing all devices detected in the  computer  The diagnostics starts running the tests on all the detected devices     4  Ifyou wish to run a diagnostic test on a specific device  press   Esc   and click Yes to stop the  diagnostic test     5  Select the device from the left pane and click Run Tests  6  If there are any issues  error codes are displayed   Note the error code and contact Dell     OR    59    D    Shutdown the computer    Press and hold the   fn   key  while pressing the power button  and then release both    The Enhanced Pre boot System Assessment window displays  listing all devices detected in the  computer  The diagnostics starts running the tests on all the detected devices    On the boot menu screen  select the Diagnostics option    The Enhanced Pre boot System Assessment window displays  listing all devices detected in the  computer  The diagnostics starts running the tests on all the detected devices     If you wish to run a diagnostic test on a specific device  press   Esc   and click Yes to stop the  diagnostic test     Select the device from the left pane and click Run Tests
35. rform the following steps     a  Disconnect the touchpad cable and USH board cable from their connectors  1   2    b  Remove the screw that secures the palmrest to the computer  3         5  Pry the palmrest at its edges to release  1  and remove the palmrest from the computer  2      16       Installing the Palmrest    Place the palmrest on the computer    Connect the following cables to their connectors on the system board    a  LED board   b  USH board   c  touchpad board   Tighten the screws at the front and back of the computer to secure the palmrest     Install the    a  keyboard   b  keyboard trim  C  battery    d  base cover  Follow the procedures in After Working Inside Your Computer       Removing the SmartCard Reader Board    K   NOTE  This component is sold separately and is not shipped with the computer     1   2        Follow the procedures in Before Working Inside Your Computer   Remove the    a  base cover   b  battery  c  memory  d  keyboard trim   e  keyboard   f  palmrest   Perform the following steps    a  Disconnect the SmartCard reader board cable from the USH board  1   2    b  Peel the cable to release from the adhesive  3      17       4  Release the SmartCard reader board  To release the SmartCard reader board   a  Remove the screws that secure the SmartCard reader board to the palmrest  1    b  Push the SmartCard reader board to release it  2         5  Remove the SmartCard reader board from the palmrest     18       Installing the SmartCard Reader 
36. rt the LED board into its slot on the palmrest    Tighten the screw that secures the LED board to the palmrest   Connect the LED board cable to its connector on the LED board   Install the    a  palmrest   b  keyboard   c  keyboard trim   d   e    BUMP      battery  base cover    5  Follow the procedures in After Working Inside Your Computer        Removing the Power Connector Port    1  Follow the procedures in Before Working Inside Your Computer        2  Remove the    base cover   battery   keyboard lattice   keyboard   palmrest   display hinge cap     display assembly   3  Disconnect the power connector port cable from its connector on the system board        o    o00      22       4  Perform the following steps   a  Flip the computer   b  Remove the screw to release the metal bracket on the power connector port  1   2    c  Lift and remove the power connector port from the computer  3         Installing the power connector port    1  Insert the power connector port into its place on the computer    2  Place the metal bracket on the power connector port and tighten the screw to secure the power   connector port to the computer    3  Flip the computer    4  Route the power connector port cable to its routing channels and connect the power connector  port cable to its connector on the system board    5  Install the   a  display assembly  b  display hinge cap  C  palmrest  d  keyboard       25    e  keyboard lattice    f  battery  g  base cover    6  Follow the procedures in
37. sers from entering Setup when an Administrator    password is set   Default Setting  Enable Admin Setup Lockout is not selected     Description    This option enables or disables the Secure Boot Feature   e Disabled  e Enabled    Default Setting  The option is enabled   Allows you to manipulate the security key databases only if the system is    in Custom Mode  The Enable Custom Mode option is disabled by  default  The options are     e PK  e KEK  e db  e dbx    If you enable the Custom Mode  the relevant options for PK  KEK  db   and dbx appear  The options are   e Save to File  Saves the key to a user selected file      Replace from File  Replaces the current key with a key from a user   selected file    47    Option    Table 6  Performance  Option  Multi Core Support    Intel SpeedStep    C States Control    Intel TurboBoost    Hyper Thread Control    48    Description      Append from File  Adds a key to the current database from a user   selected file    e Delete  Deletes the selected key  e Reset All Keys  Resets to default setting  e Delete All Keys  Deletes all the keys    NOTE  If you disable the Custom Mode  all the changes made will  be erased and the keys will restore to default settings     Description    This field specifies whether the process will have one or all cores  enabled  The performance of some applications will improve with the  additional cores  This option is enabled by default  Allows you to enable  or disable multi core support for the processor  
38. th of  Administrator and System passwords     Allows you to enable or disable the permission to bypass the System and  the Internal HDD password  when they are set  The options are     e Disabled  e Reboot bypass    Default Setting  Disabled    Allows you to enable the disable permission to the System and Hard  Drive passwords when the admin password is set     Default Setting  Allow Non Admin Password Changes is selected     Allows you to determine whether changes to the setup options are  allowed when an Administrator Password is set  If disabled the setup  options are locked by the admin password     Allows you to enable the Trusted Platform Module  TPM  during POST   Default Setting  The option is disabled     Option    Computrace    CPU XD Support    OROM Keyboard Access    Admin Setup Lockout    Table 5  Secure Boot  Option    Secure Boot Enable    Expert Key Management    Description  Allows you to activate or disable the optional Computrace software The  options are     e Deactivate  e Disable  e Activate    NOTE  The Activate and Disable options will permanently activate or  disable the feature and no further changes will be allowed    Deactivate  default     Allows you to enable the Execute Disable mode of the processor   Enable CPU XD Support  default     Allows you to set an option to enter the Option ROM Configuration  screens using hotkeys during boot  The options are      Enable   e One Time Enable   e Disable    Default Setting  Enable  Allows you to prevent u
39. til it  clicks on to the display assembly    3  Follow the procedures in After Working Inside Your Computer        30    Removing the Display Panel    1     4     5     Follow the procedures in Before Working Inside Your Computer        Remove the    a  base cover  b  battery   C  display bezel    Remove the screws that secure the display panel to the display assembly  1  and lift to flip the display  panel to access the eDP cable  2            Disconnect the eDP cable from its connector  1  and remove the display panel from the display  assembly  2      31       Installing the Display Panel    BUND    Connect the eDP cable to its connector and fix the adhesive tape    Place the display panel to align with the screw holders on the display assembly   Tighten the screws to secure the display panel to the display assembly    Install the    a  display bezel    b  battery  C  base cover    Follow the procedures in After Working Inside Your Computer        Removing the Display Hinges    32    Follow the procedures in Before Working Inside Your Computer        Remove the    base cover   battery   memory   hard drive assembly  keyboard trim  keyboard   palmrest  display hinge brackets  display assembly     display bezel   Perform the following steps to remove the display hinges from the display assembly           FSG a ef om    a  Remove the screws that secure the display hinges at both sides of the display assembly  1    b  Remove the display hinges from the display assembly  2     
40. ttery    1  Follow the procedures in Before Working Inside Your Computer        Remove the     base cover      battery    a  b  c  memory  d  hard drive assembly  e  f   g         keyboard trim  keyboard    palmrest  3  Perform the following steps to remove the coin cell battery from the computer   a  Disconnect the coin cell battery cable from its connector on the system board  1    b  Pry the coin cell battery to remove it from the computer  2         Installing the Coin cell Battery    1  Insert the coin cell battery into its place on the system board   Connect the coin cell battery cable to its connector on the system board   3  Install the     a  palmrest  b  keyboard   C  keyboard trim  d  hard drive assembly   e  memor   f  base cover   4  Follow the procedures in After Working Inside Your Computer            7    Removing the System Board    1  Follow the procedures in Before Working Inside Your Computer        Remove the    SD card   base cover   battery   memory   hard drive assembly  keyboard trim  keyboard   palmrest  display hinge brackets  display assembly  system fan   3  Disconnect the following cables from the system board           aT Faro ang      a  power connector  1   b  speaker  2   c  coin cell battery  3        4  Remove the screws that secure the system board to the chassis  1  and push the system board to  release from its place     38       5  Remove the system board from the chassis        Installing the System Board    1  Place the system board t
41. up  Thermal  events     Allows you to view and clear the System Setup  Power  events     4    Technical Specifications    K   NOTE  Offerings may vary by region  For more information regarding the configuration of your    computer  click Start     Start icon      Help and Support  and then select the option to view  information about your computer     K   NOTE  In Windows 8 1  navigate to Help and Support to view information about your computer     Table 13  System Information       Feature Specification   Chipset Intel 4th Generation Processors   Intel 5th Generation Processors  DRAM bus width 64 bit   Flash EPROM SPI 32 Mbits  64 Mbits   PCle bus 100 MHz    External Bus Frequency PCle Gen2  5 GT s     Table 14  Processor    Feature Specification  Intel 4th Generation Processors Intel 5th Generation Processors   Types Intel Celeron  Core i3  i5 Intel Celeron  Core i3  i5   i7  L5 cache   Celeron NA 2 MB   i3 3 MB 3 MB   i5 3 MB 3 MB   i7 NA 3 MB    Table 15  Memory    Feature Specification       Memory connector  Latitude 5250 up to two SODIMM slots  Latitude E5250 two SODIMM slots  Memory capacity    Intel 4th Generation Processors 4 GB or 8 GB    53       Feature Specification  Intel 5th Generation Processors 4 GB  8 GB  or 16 GB  Memory type DDR3L SDRAM  1600 MHz     Minimum memory  Maximum memory  Intel 4th Generation Processors    Intel 5th Generation Processors    Table 16  Audio    4 GB    8 GB  16 GB       Feature Specification  Type High definition audio  Controller
42. your computer     IN CAUTION  To avoid damage to the computer  use only the battery designed for this particular  Dell computer  Do not use batteries designed for other Dell computers     1  Connect any external devices  such as a port replicator or media base  and replace any cards  such as  an ExpressCard     2  Connect any telephone or network cables to your computer   CAUTION  To connect a network cable  first plug the cable into the network device and then  plug it into the computer    Replace the battery    Replace the base cover    Connect your computer and all attached devices to their electrical outlets     Aw pw    Turn on your computer     Removing and Installing Components    This section provides detailed information on how to remove or install the components from your  computer     Recommended Tools    The procedures in this document may require the following tools       Small flat blade screwdriver  e  0 Phillips screwdriver   e  1 Phillips screwdriver     Small plastic scribe    System Overview    Connecting Your Charger            rf                        LA                                                                                     Ooo JDJOXOQOOOQOCOIC T JOY  DODOUOOOODOUOOO pe   Ina D Ho P     JOOOGOQDOOOOOL AT  4 L  JOOOGOOOOOUOUOC S    N  LE LJOOOI D0228 C v   J   TD  LT N           amp     l  I                               Front and Back View                                                                                                        
    
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