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ASUS M4A78LT_LE Owner's Manual

1. E iz a ER a SAS 0000 D H 1 28 d D EE CH os o oS f C e P m mm m mm M4A78LT Series CPU fan connector AN DO NOT forget to connect the CPU fan connector Hardware monitoring errors can occur if you fail to plug this connector ASUS M4A78LT Series 1 9 1 10 1 6 2 Installing the heatsink and fan N Ensure that you use only AMD certified heatsink and fan assembly To install the CPU heatsink and fan 1 Place the heatsink on top of the installed CPU ensuring that the heatsink fits properly on the retention module base y4 The retention module base is already installed on the motherboard upon purchase You do not have to remove the retention module base when installing the CPU or installing other motherboard components If you purchased a separate CPU heatsink and fan assembly ensure that a Thermal Interface Material is properly applied to the CPU heatsink or CPU before you install the heatsink and fan assembly CPU Fan CPU Heatsink Retention bracket Retention Module Base Retention bracket lock Your boxed CPU heatsink and fan assembly should come with installation instructions for the CPU heatsink and the retention mechanism If the instructions in this section do not match the CPU documentation follow the latter 2 Attach one end of the retention bracket to the retention
2. d ATX12V EATXPWR OO aa 3 Volts Sa GND aa 12 Volts JC 5 Volts Fr 12 Vote VI 5 Volts 5V Standby CH 5 Volts Power OK C 5 Volts LI GND GND u oo 5 Vote A GND ZZ GND JCH GND oo 5 Volts CH PSON ND GND 3 vote A 12 Volts D 3 Vots H 3 Volts PIN 475 M4A78LT Series ATX power connectors A We recommend that you use an ATX 12V Specification 2 0 compliant power supply unit PSU with a minimum of 300W power rating This PSU type has 24 pin and 4 pin power plugs If you intend to use a PSU with 20 pin and 4 pin power plugs ensure that the 20 pin power plug can provide at least 15 A on 12 V and that the PSU has a minimum power rating of 300W The system may become unstable or may not boot up if the power is inadequate DO NOT forget to connect the 4 pin ATX12V power plug Otherwise the system will not boot up We recommend that you use a PSU with higher power output when configuring a system with more power consuming devices or when you intend to install additional devices The system may become unstable or may not boot up if the power is inadequate Ifyou are uncertain about the minimum power supply requirement for your system refer to the Recommended Power Supply Wattage Calculator at http support asus com PowerSupplyCalculator PSCalculator aspx SLanguage en us for details ASUS M4A78LT Series 1 23 Y 1 24 IDE connector 40 1 pi
3. 2 4 2 5 Managing and updating your BIOS 2 1 2 1 1 ASUS Updater 2 00 aaa 2 1 2 1 2 ASUS EZ Flash 2 2 2 1 3 ASUS CrashFree BIOS 3 2 3 BIOS setup program 2 2 1 BIOS menu screen 2 2 2 Men bar Ree 2 2 3 Navigation EE 2 2 4 Menu teM Siera a 2 25 Submenu items nenn 2 2 6 Configuration fields nennen 2 6 2 2 7 Pop Up WINdOW re 2 6 ee NEE 2 2 9 General help Main menu sees 2 3 1 System Time 2 3 2 System Date 2 3 3 Primary IDE Master Slave SATA 1 2 39 4 5 6 2 8 2 3 4 System Information 2 9 Advanced MT UE 2 9 2 4 1 JumperFree Configuration a a a 2 9 2 4 2 CPU Configuration neee 2 12 24 3 Chipset 2 13 2 4 4 Onboard Device Configuration 2 15 2 4 5 PGP AP ES S na ee 2 15 246 USBOCo fig urall m L u Sasa 2 16 e UU 2 17 2 5 1 Suspend Mode Auto 2 17 2 5 2 ACPI 2 0 Support Enabled 2 17 253 ACPI APIC Support Enabled 2 17 2 5 4 APM Configuration u a 2 17 2 6 2 7 2 8 2 5 5 HW Monitor Configuration a 2 18 2 5 6 Anti Surge Support Enabled 2 18 lee du TE 2 6 1 Boot Device
4. 2GB Apacer AM5D5808FEQSBG CM3X1024 1333C9DHX 1GB CM3X1024 1333C9 1GB TR3X3G1333C9 G 3GB 3 x 1GB TR8X3G1333C9 G 3GB 3 x 1GB TR8X3G1333C9 3GB 3 x 1GB CM3X1024 1333C9DHX 1GB Corsair CM3X2048 1333C9DHX 2GB TW3X4G1333C9 G 4GB 2 x 2GB CMX8GX3M4A1333C9 8GB 4 x 2GB CT12864BA1339 8FF 1GB Micron IFF22DIKPT CT12872BA1339 9FF 1GB Micron 91F22D9KPT ECC CT25664BA1339 16FF 2GB Micron 9KF27D9KPT CT25672BA1339 18FF 2GB Micron 91F22D9KPT ECC BL25664BN1337 16FF XMP 6GB 3 x 2GB 1 65V EBJ10UE8EDFO DJ F 1GB ELPIDA J1108EDSE DJ F 1 35V low voltage EBJ21UE8EDFO DJ F 2GB ELPIDA J1108EDSE DJ F 1 35V low voltage F3 10600CL8D 2GBHK XMP 1GB G SKILL F3 10666CL7T 3GBPK XMP 3GB 3 x 1GB 1 5 1 6V F3 10666CL9T 3GBNQ 3GB 3 x 1GB 1 5 1 6V F3 10600CL8D 4GBHK XMP 4GB 2 x 2GB 1 5 1 6V F3 10666CL8D 4GBECO XMP 4GB 2 x 2GB XMP 1 35V GV32GB1333C9DC 2GB 2 x 1GB 1 5V GV34GB1333C7DC GG34GB1333C9DC 2GB 4GB 2 x 2GB GEIL GL1L128M88BA12N 1 5V 1 3V low voltage GV34GB1333C9DC 4GB 2 x 2GB 1 5V HMT125U6TFR8A H9 2GB HYNIX H5TC1G83TFRH9A 1 35V low voltage FLFD45F B8KL9 1GB KINGMAX KKB8FNWBFGNX 27A FLFE85F B8KL9 2GB KINGMAX KKB8FNWBFGNX 26A KVR133
5. 6 CLK 7 CLK DRAM WRITE to WRITE Timing Auto Configuration options Auto 3 CLK 10 CLK DRAM READ to READ Timing Auto Configuration options Auto 3 CLK 10 CLK DRAM REF Cycle Time Auto Configuration options Auto 90ns 110ns 160ns 300ns 350ns DRAM Refresh Rate Auto Configuration options Auto Every 7 8ms Every 3 9ms DRAM Command Rate Auto Configuration options Auto 1T 2T 2 4 2 CPU Configuration The items in this menu show the CPU related information that the BIOS automatically detects GART Error Reporting Disabled This option should remain disabled for the normal operation The driver developer may enable it for testing purpose Configuration options Disabled Enabled Microcode Updation Enabled Enables or disables Microcode Updation Configuration options Disabled Enabled Secure Virtual Machine Mode Disabled Enables or disables Secure Virtual Machine Mode SVM Configuration options Disabled Enabled Chapter 2 BIOS information Cool n Quiet Enabled Enables or disables the AMD Cool n Quiet technology Configuration options Enabled Disabled C1E Support Disabled Enables or disables the CPU Enhanced Halt C1E function a CPU power saving function in system halt state When this item is enabled the CPU core frequency and voltage will be reduced during the system halt state to decrease power consumption Configur
6. When set to Enabled the ACPI APIC table pointer is included in the RSDT pointer list Configuration options Disabled Enabled 2 5 4 APM Configuration Restore on AC Power Loss Power Off When this item is set to Power Off the system goes into off state after an AC power loss When this item is set to Power On the system goes on after an AC power loss When this item set to Last State the system goes into either off or on state whatever the system state was before the AC power loss Configuration options Power Off Power On Last State Power on From S5 By PME Disabled Enables or disables PME wake from sleep states Configuration options Disabled Enabled Power on From S5 By Ring Disabled Enables or disables ring to generate a wake event Configuration options Disabled Enabled ASUS M4A78LT Series 2 17 Power on By PS 2 Keyboard Disabled Enables or disables PS 2 Keyboard to generate a wake event Configuration options Disabled Space Bar Power Key Ctrl Esc Power On By PS 2 Mouse Disabled When set to Enabled this parameter allows you to use the PS 2 mouse to turn on the system This feature requires an ATX power supply that provides at least 1A on the 5VSB lead Configuration options Disabled Enabled Power on From S5 By RTC Alarm Disabled Enables or disables RTC to generate a wake event Configuration options Disabled Enabled 2 5 5 HW Monitor Configuration CPU
7. lt Enter gt to display a list of options Refer to 2 2 7 Pop up window 2 2 7 Pop up window Main Advanced en Freie Power Settings m 7 en Select a menu item then press 2 FT Il to select lt Enter gt to display a pop up window ce are Ze EEI se Bl es L e I Fe oe EE with the configuration options for BW Monitor Configuration Tas that item rae als sores 2 2 8 Scroll bar Save and Ext Ascroll bar appears on the right side w02 61 C Copyright 1985 2011 Imerican Anericanlegatzends of a menu screen when there are Pop up window items that do not fit on the screen Press the lt Up gt lt Down gt arrow keys or lt Page Up gt lt Page Down gt keys to display the other items on the screen 2 2 9 General help At the top right corner of the menu screen is a brief description of the selected item Scroll bar Chapter 2 BIOS information 2 3 Main menu When you enter the BIOS Setup program the Main menu screen appears giving you an overview of the basic system information fo Refer to section 2 2 1 BIOS menu screen for information on the menu screen items and Gegen how to navigate through them M4A78LT BIOS Setup Version 0307 Advanced Power Boot Tools v02 61 C Copyright 1985 2011 American Megatrends Inc 2 3 1 System Time xx xx xx Allows you to set the system time 2 3 2 System Date Day xx xx xxxx Allows you to set the system date ASUS M4A78LT Series 2 3 3 Pr
8. AL7F8G73D DG1 PSC AL8F8G73D DG1 SAMSUNG M378B2873DZ1 CH9 1GB SS PSC A3P1GF3DGF928M9B05 8 8 8 24 2GB DS PSC A3P1GF3DGF928M9B05 8 8 8 24 1GB SS Samsung SEC 846 HCH9 K4B1G08460 SS Samsung SEC 913 HCH9 K4B1G0846E SS Samsung K4B1G0846F SS Samsung K4B1G0846D HCH9 ECC DS Samsung K4B1G0846D HCH9 DS Samsung SEC 913 HCH9 K4B1G0846E DS Samsung K4B1G0846F DS Samsung K4B1G0846D HCH9 ECC DS Samsung K4B2G0846C SS HYNIX H5TQ1G83TFR SAMSUNG M378B2873EH1 CH9 SAMSUNG M378B2873FHS CH9 SAMSUNG M391B2873DZ1 CH9 SAMSUNG SAMSUNG M378B5673DZ1 CH9 M378B5673EH1 CH9 SAMSUNG M378B5673FH0 CH9 M391B5673DZ1 CH9 M378B5273CH0 CH9 W1333UA1GH 1GB W1333X2GB8 XMP 1GB SS S W1333UB2GS 2GB DS Samsung K4B1G0846F W1333UB4GS 4GB DS Samsung K4B2G0846C W1333UX6GM 6GB 3x 2GB DS Micron OBF27D9KPT Transcend TS256MLK64V3U Transcend TS256MLK64V3U PC3 10600 DDR3 1333 9 9 9 M2F2G64CB88B7N CG M2Y2G64CB8HC9N CG M2F4G64CB8HBSN CG 2GB DIMM PC3 10666 2GB 2GB 1GB 2GB 2GB 4GB 2GB DS Micron DS Elpida 9GF27D9KPT J1108BDBG DJ F SS Micron 8FD22D9JNM DS Elixir N2CB2G808N CG DS Elixir DS Elixir N2CB2G808N CG DS Samsung SEC 904 HCH9 K4B1G0846D 2GB DS lt 1GB DS s 1GB DS Patriot PM64M8D38U 15 1GB SS NANYA NT5CB128M8AN CG KTG2G1333PG3 PSD31G13332H PSD31G13332 SP001GBLTU133S01 SP002GBLTU133S02 2GB DS elixir N2CB1680AN C6 T
9. CD DVD player or other audio sources Line Out port lime This port connects to a headphone or a speaker In the 4 6 and 8 channel configurations the function of this port becomes Front Speaker Out Microphone port pink This port connects to a microphone Refer to the audio configuration table below for the function of the audio ports in 2 4 6 or 8 channel configuration Audio 2 4 6 or 8 channel configuration Headset 2 channel 4 channel 6 channel 8 channel Light Blue Rear panel Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out Lime Rear panel Line Out Front Speaker Out Front Speaker Out Front Speaker Out Pink Rear panel Mic In Mic In Bass Center Bass Center Lime Front panel _ _ _ Side Speaker Out To configure an 8 channel audio output Use a chassis with HD audio module in the front panel to support 8 channel audio output ASUS M4A78LT Series 1 21 1 22 USB 2 0 ports 1 and 2 These two 4 pin Universal Serial Bus USB ports connect to USB 2 0 devices USB 2 0 ports 3 and 4 These two 4 pin Universal Serial Bus USB ports connect to USB 2 0 devices Serial port This 9 pin COM1 port is for pointing devices or other serial devices PS 2 Keyboard port purple This port is for a PS 2 keyboard 1 10 2 Internal connectors 1 Front panel audio connector 10 1 pin AAFP This connector is for a chassis mounted front panel audio I O module that suppo
10. module base Chapter 1 Product introduction 3 Align the other end of the retention bracket to the retention module base A clicking sound denotes that the retention bracket is in place A Ensure that the fan and heatsink assembly perfectly fits the retention mechanism module base otherwise you cannot snap the retention bracket in place 4 Push down the retention bracket lock on the retention mechanism to secure the heatsink and fan to the module base 5 When the fan and heatsink assembly is in place connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN A DO NOT forget to connect the CPU fan connector Hardware monitoring errors can occur if you fail to plug this connector 1 7 System memory 1 7 1 Overview This motherboard comes with four Double Data Rate 3 DDR3 Dual Inline Memory Modules DIMM sockets A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket DDR3 modules are developed for better performance with less power consumption The figure illustrates the location of the DDR3 DIMM sockets DIMM_A2 DIMM_A1 DIMM_B2 a Channel Sockets on Sa Channel A DIMM_A1 and DIMM_A2 LJ s Channel B DIMM_B1 and DIMM_B2 Dj H Eh mM oO mmm M4A78LT Series 240 pin DDR3 DIMM sockets ASUS M4A78LT
11. settings if any See Chapter 2 for information on BIOS setup 2 Assign an IRQ to the card 3 Install the software drivers for the expansion card aN When using PCI cards on shared slots ensure that the drivers support Share IRQ or that the cards do not need IRQ assignments Otherwise conflicts will arise between the two PCI groups making the system unstable and the card inoperable 1 8 3 PCI slots The PCI slots support cards such as a LAN card SCSI card USB card and other cards that comply with PCI specifications 1 8 4 PCI Express x1 slots This motherboard supports PCI Express x1 network cards SCSI cards and other cards that comply with the PCI Express specifications 1 8 5 PCI Express x16 slot This motherboard supports a PCI Express x16 graphics card that comply with the PCI Express specifications Chapter 1 Product introduction 1 9 Jumpers 1 Clear RTC RAM CLRTC This jumper allows you to clear the Real Time Clock RTC RAM in CMOS You can clear the CMOS memory of date time and system setup parameters by erasing the CMOS RTC RAM data The onboard button cell battery powers the RAM data in CMOS which include system setup information such as system passwords m BH H EL A CLRTC 2 12 23 mo BEI e r Normal Clear RTC 5 AZ Default M4A78LT Seri
12. 1 4 sv 5VSB Default MARTOLT series o USBPW5 8 on DA 12 23 ea Ed D CG 5V 5VSB Th m mmm Default M4A78LT Series USB Device Wake Up Keyboard power 3 pin KBPWR This jumper allows you to enable or disable the keyboard wake up feature When you set this jumper to pins 2 3 5VSB you can wake up the computer by pressing a key on the keyboard This feature requires an ATX power supply that can supply at least 1A on the 5VSB lead and a corresponding setting in the BIOS KBPWR i 12 2 3 DEI E 5V 5VSB Default io L sitet series O r ea a ih m m m M4A78LT Series Keyboard Power Setting Chapter 1 Product introduction 1 10 Connectors 1 10 1 Rear panel ports 10 9 8 7 6 a gt PS 2 Mouse port green This port is for a PS 2 mouse Parallel port This 25 pin port connects a parallel printer a scanner or other devices LAN RJ 45 port This port allows Gigabit connection to a Local Area Network LAN through a network hub LAN port LED indications ACT LINK SPEED LED LED Activity Link LED Speed LED Status Description _ Status Description OFF 10Mbps connection ORANGE Linked ORANGE 100Mbps connection BLINKING Data activity GREEN 1Gbps connection LAN port Line In port light blue This port connects to the tape
13. 100 and 200 series CPUs support up to DDR3 1066MHz With ASUS design this motherboard can support up to DDR3 1333MHz Refer to www asus com for the latest Memory QVL Qualified Vendors List When you install a total memory of 4GB or more Windows 32 bit operating system may only recognize less than 3GB We recommend a maximum of 3GB system memory if you are using a Windows 32 bit operating system 1 x PCle 2 0 x16 slot 2 x PCle 2 0 x1 slots 3 x PCI slots 1 x Ultra DMA 133 100 66 connector 6 x Serial ATA 3Gb s connectors support RAID 0 RAID 1 RAID 10 and JBOD configurations Realtek 8111E PCle Gigabit LAN controller ALC887 8 channel High Definition Audio CODEC Use a chassis with HD audio module in the front panel to support an 8 channel audio output 10 x USB 2 0 1 1 ports 6 ports at the mid board 4 ports at the back panel 100 All high quality conductive polymer capacitors M4A78LT only Core Unlocker ASUS EPU 4 Engine ASUS CrashFree BIOS 3 ASUS EZ Flash 2 ASUS Q Fan ASUS MyLogo 2 ASUS C P R CPU Parameter Recall ASUS Anti Surge ASUS Al Charger ASUS Turbo Key continued on the next page M4A78LT Series specifications summary Back panel I O 1x LPT port ports 1 x PS 2 Keyboard port 1 x PS 2 Mouse port 1 x LAN RJ 45 port 4 x USB 2 0 1 1 ports 1 x COM connector 3 x Audio jacks Internal HO 3 x USB 2 0 1 1 connectors support additional 6 USB 2 0 1 1 ports connec
14. 3D3N9 1G KVR1333D3N9 2G low profile 1GB 2GB ELPIDA ELPIDA J1108BDBG DJ F J1108BDBG DJ F 1 5V KVR1333D3N9 2G 2GB KTC D1288JPNDPLD9U 1 5V KVR1333D3N9 2G 2GB ELPIDA J1108BDSE DJ F 1 5V KHX1333C7D3K2 4GX XMP 4GB 2 x 2GB 1 65V KHX1333C9D3UK2 4GX XMP 4GB 2 x 2GB XMP 1 25V KVR1333D3N9 4G low profile 4GB HYNIX H5TQ2G83AFRH9C 1 5V KVR1333D3N9 4G 4GB Hynix H5TQ2G83AFR MT4JTF12864AZ 1G4D1 1GB MICRON D9LGQ MT8JTF12864AZ 1G4F1 1GB Micron QFF22D9KPT MT9JSF12872AZ 1G4F1 1GB Micron 91F22D9KPT ECC MT8JTF25664AZ 1G4D1 2GB MICRON D9LGK MT16JTF25664AZ 1G4F1 2GB Micron 9KF27D9KPT MT18JSF25672AZ 1G4F1 2GB Micron 91F22D9KPT ECC MT16JTF51264AZ 1G4D1 OCZ3G1333LV3GK 4GB 3GB 3 x 1GB MICRON D9LGK OCZ3F13334GK 4GB 2 x 2GB 0CZ3G13334GK 4GB 2 x 2GB OCZ3G1333LV4GK 4GB 2 x 2GB OCZ3P1333LV4GK 4GB 2 x 2GB OCZ3RPX1333EB4GK 4GB 2 x 2GB O0CZ3X13334GK XMP 4GB 2 x 2GB OCZ3G1333LV6GK continued on the next page Chapter 1 Product introduction DDR3 1333MHz capability Vendor Part No Ocz OCZ3P1333LV6GK SS Chip DS Brand 6GB 3x2GB DS DIMM support Voltage 7 7 7 20 ocz OCZ3X1333LV6GK XMP 6GB 3x2GB DS 8 8 8 20 ocz OCZ3G1333LV8GK 8GB 2x4GB DS 9 9 9 20 PSC
15. Alt gt lt Delete gt simultaneously Press the reset button on the system chassis Press the power button to turn the system off then back on Do this option only if you failed to enter BIOS Setup using the first two options A Using the power button reset button or the lt Ctrl gt lt Alt gt lt Del gt keys to force l reset from a running operating system can cause damage to your data or system We recommend that you always shut down the system properly from the operating system A The default BIOS settings for this motherboard apply to most conditions to ensure optimum performance If the system becomes unstable after changing any BIOS settings load the default settings to ensure system compatibility and stability Select the Load Setup Defaults item under the Exit menu See section 2 8 Exit Menu The BIOS setup screens in this chapter are for reference only They may not exactly match what you see on your screen Visit the ASUS website at www asus com to download the latest BIOS file for this motherboard Chapter 2 BIOS information 2 2 1 BIOS menu screen Menu items Menu bar Configuration fields General help M4A78L1 BIOS Setup Version 0307 Advanced Power Boot Tools Exit C Copyright 1985 2011 American Me Submenu items Navigation keys 2 2 2 Menu bar The menu bar on top of the screen has the following main items Main For changing the basic system configuration Advanced For changing the advanced
16. E CPU Overclocking Auto Selects the CPU overclocking options to achieve desired CPU internal frequency Configuration options Manual Auto Overclock Profile Test Mode ASUS M4A78LT Series 2 9 The following item only appears when you set CPU Overclocking to Manual CPU HT Reference Clock MHz 200 Sets the CPU HT Reference Clock Configuration options Min 200 Max 550 The following item only appears when you set CPU Overclocking to Overclock Profile Overclock Options Auto Selects the overclocking profile Configuration options Auto Overclock 2 Overclock 5 Overclock 8 Overclock 10 PCIE Overclocking Auto Configures the PCIE overclocking Configuration options Auto Manual ff The following item only appears when you set PCIE Overclocking to Manual PCIE Clock 100 Sets the PCIE Clock Configuration options Min 100 Max 150 Processor Frequency Multiplier Auto Sets the processor frequency multiplier Configuration options Auto x4 0 800MHz x4 5 900MHz x5 0 1000MHZ x5 5 1100MHz x6 0 1200MHz x6 5 1300MHz x7 0 1400MHZz x7 5 1500MHZ x8 0 1600MHz x8 5 1700MHz x9 0 1800MHz x9 5 1900MHZz x10 0 2000MHZ x10 5 2100MHZz x11 0 2200MHz x11 5 2300MHz x12 0 2400MhHz x12 5 2500MHz x13 0 2600MHz x13 5 2700MHZ x14 0 2800MHz x14 5 2900MHz x15 0 3000MHz CPU NB Frequency Auto Sets the CPU Northbridge frequency Configuration options Au
17. F3 12800CL8D 4GBRM XMP 4GB 2 x 2GB 1 60V F3 12800CL9T 6GBNQ XMP 6GB 3 x 2GB 1 5V 1 6V GET316GB1600C9QC XMP 16GB 4 x 4GB 1 6V GV34GB1600C8DC XMP 2GB 1 6V FLGD45F B8KG9 XMP 1GB Kingmax KFB8FNGXF ANX 12A FLGE85F B8KG9 XMP 2GB Kingmax KFB8FNGXF ANX 12A KINGSTON KHX1600C9D3K3 12GX XMP 12GB 3x4GB KINGSTON KHX1600C7D3K2 4GX XMP 4GB 2x 2GB Kingston KHX1600C8D3K2 4GX XMP 4GB 2 x 2GB Kingston KHX1600C8D3T1K2 4GX XMP 4GB 2 x 2GB KINGSTON KHX1600C9D3T1K3 6GX XMP 6GB 3x 2GB KHX1600C9D3K3 6GX XMP OCZ3BE1600C8LV4GK 6GB 3 x 2GB 4GB 2 x 2GB OCZ3BE1600LV4GK 4GB 2 x 2GB 0CZ3G16004GK 4GB 2 x 2GB OCZ30B1600LV4GK 4GB 2 x 2GB OCZ3P1600EB4GK OCZ3P1600LV4GK 4GB 2 x 2GB 4GB 2 x 2GB OCZ3P1600LV4GK 4GB 2 x 2GB OCZ3G1600LV6GK 6GB 3 x 2GB WA160UX6G9 6GB 3 x 2GB SLZ3128M8 EGJ1D XMP 2GB Asint 3128M8 GJ1D M2Y2G64CB8HA9N DG XMP 2GB KTG2G1600PG3 2GB 998659 XMP 6GB 3 x 2GB 998659 XMP 6GB 3 x 2GB PGS34G1600LLKA ASUS M4A78LT Series 1 13 1 14 AD31333001GOU DDR3 1333MHz capability 1GB AD30908C8D 151C E0906 DIMM support B C Voltage AD31333G001GOU 3GB 3 x 1GB 1 65 1 85V AD31333002GOU 2GB A Data AD30908C8D 151C E0903 78 A1GC6 9L1 2GB APACER AM5D5808DEWSBG 78 A1GC6 9L1
18. IR IS IS m u 31 3 3 3 j USB34 3 lt lt a e s s s Z ZI allo 5 ollo lle HE LAN1_USB12 S 8 S 8 me E 2 AUDIO 3 CHA FAN a g E AMD ZS m 2 RS780L Sal S ag zJ x zal mm Sue PCIEX1_1 es z ASUS SE M4A78LT Series gog PCIEX16_1 eg 3 PCIEX1_2 8g ll Super a SATA3G_5 SATA3G_6 vo AMD PCH SB710 SATA3G_3 SATA3G_4 1 PCI2 SATA3G_1 SATA3G_2 w sos PCI3 SPDIF_OUT AAFP a HHB HERAN HAE Ay HNH DI USB56 USB78 USB910 BIV DN ASUS M4A78LT Series 1 5 4 Layout contents Connectors Jumpers Slots USB device wake up 3 pin USBPW1 4 USBPW5 10 Connectors Jumpers Slots IDE connector 40 1 pin PRI_IDE ATX power connectors 24 pin EATXPWR 4 pin ATX12V Onboard LED Keyboard power 3 pin KBPWR System panel connector 20 8 pin PANEL CPU and chassis fan connectors 4 pin CPU_FAN 3 pin CHA_FAN USB connectors 10 1 pin USB56 USB78 USB910 AMD CPU socket Clear RTC RAM CLRTC DDR3 DIMM sockets Serial ATA connectors 7 pin SATA1 6 Digital audio connector 4 1 pin SPDIF_OUT Front panel audio connector 10 1 pin AAFP 1 6 Central Processing Unit CPU This motherboard comes with an AM3 socket designed for Phenom II Athlon II Sempron 100 series processors A The AM3 socket has a different pinout from the AM2 AM2 socket Ensure that you use a CPU designed f
19. M4A78LT M4A78LT LE Le a cO Be E cD om u gt E6331 First Edition V1 January 2011 Copyright 2011 ASUSTeK Computer Inc All Rights Reserved No part of this manual including the products and software described in it may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form or by any means except documentation kept by the purchaser for backup purposes without the express written permission of ASUSTeK Computer Inc ASUS Product warranty or service will not be extended if 1 the product is repaired modified or altered unless such repair modification of alteration is authorized in writing by ASUS or 2 the serial number of the product is defaced or missing ASUS PROVIDES THIS MANUAL AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL ASUS ITS DIRECTORS OFFICERS EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING DAMAGES FOR LOSS OF PROFITS LOSS OF BUSINESS LOSS OF USE OR DATA INTERRUPTION OF BUSINESS AND THE LIKE EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL U
20. MS1GB364D081 107EY TMS1GB364D081 138EY TMS2GB364D081 107EY TMS2GB364D081 138EY TMS2GB364D082 138EW E41302GP0 73BDB TD2G16C9 Z8 1GB ss 1GB 2GB DS UMAX DS HYNIX U2S24D30TP 13 H5TQ1G83AFP ASUS M4A78LT Series 1 16 DDR3 1066MHz capability CT12864BA1067 8FF Micron 9GF22D9KPT Voltage DIMM support A BY Ct CT12872BA1067 9FF Micron 9HF22D9KPT ECC CT25664BA1067 16FF Micron QHF22D9KPT CT25672BA1067 18FF Micron 9GF22D9KPT ECC EBJ10UE8EDFO AE F ELPIDA J1108EDSE DJ F 1 35V low voltage EBJ11UD8BAFA AE E Elpida J5308BASE AC E EBJ21UE8EDFO AE F ELPIDA J1108EDSE DJ F 1 35V low voltage KVR1066D3E7 1G ELPIDA J1108BDBG DJ F ECC 1 5V KVR1066D3N7 1G KTC D1288JPNDPLD9U 1 5V KVR1066D3N7 2G ELPIDA J1108BDSE DJ F 1 5V H5TQ2G83AFR 1 5V KVR1066D3N7 4G Hynix MT8JTF12864AZ 1G1F1 Micron MT9JSF12872AZ 1G1F1 Micron MT16JTF25664AZ 1G1F1 2GB Micron MT18JSF25672AZ 1G1F1 2GB Micron OCZ3G1066LV4GK 4GB 2 x 2GB Micron M378B2873EH1 CF8 1GB 9GF22D9KPT QHF22D9KPT ECC QHF22D9KPT 9GF22D9KPT ECC 9BF27D9KPV 7 7 7 20 1 65V Samsung SEC 901 HCF8 K4B1G0846E SAMSUNG 846 K4B2G0846B HCF8 M378B5273BH1 CF8 4GB Due to CPU spec AMD 100 and 200 series CPUs support up to DDR3 1066MHz With ASUS design this motherboard can support up to DDR3 1333MHz When overclocki
21. N3 LJ Looz o9 0s N3 LJ g0 00z z Z LA Z IZE zoe NA L L0 600Z L l LA Z rrS zoe N3 O 60 002 1 LA bz 68r Loe N3 l 0 Sooz L F A E68 Loe Na O S0 6002 L L ZA 41 68 Loe N3 I S0 200 L zen Z 806 Loe N3 O L 2002 LA 6 687 oe Na DI S0 2002 1 ZEN 1 806 Loe Na D LL S00Z LE LA ege Loe N3 O e0 002 2 0 6A LLS Loe Na LJ 80 zo0z l e LA 68t Loe NA L 0 8002 L Z LA zort 00 N3 O 80 Z002 1 LA Cer Loe NA O egener Lu Lopr 00 Na O 0 8002 1 8 LA L 68 Loe N3 O S0 900z L LA Bze 00 Na O ABO 3118 93 8 6660 2002 02055 N3 I 900Z ZV 00Z 1V 100Z L0SS Na DI g002 00019 Na DJ 9002 2 00019 Na X 002 2V L002 1W 8661 pz0ss N3 DI 400Z 1V 9002 22055 N3 Bd 2S8AH90 1p Bulmo jo ou JO S y IN3 93 80 9002X zuawau nba Ienu ss y Y IM uttojuoos 311182VrN Lieu aweu I poW pueoquayjow aweu yonpold snjesedde Bulmojoj ay e 5 p ANVWY3O Knunoo NSONILVY 0880p EZ LZ NLS LUONYVH LD sseuppy HquiS YI LNIWOI SnSV adoun u aanequaseides pazuoyiny NWMIVL Knunoo D OH NYMIYL ZL l I3dlV1 NOLISd GY 31 17 OSE ON Ay9 sseuppy ONI HALNdWOD X LSNSV 4a npejnuew nen man p uBisi pun ay am AyW IO JUOJ Jo uoneue 5 q 93 1107 hz uer IA anuig nr JU DIS 4d SUB 9A9 S OWEN S uosi q Anp1u s d g uone1odo pau sapun snes Aew yey u 1 ji lur 8urp
22. Priority 2 6 2 Boot Settings Configuration 2 19 2 6 3 SGCUNY eisrean ege Tools menu 2 7 1 ASUS EZ Flash 2 27 2 ASUS OC Profile u unn cede cen 2 22 Exit menu vi Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules Operation is subject to the following two conditions This device may not cause harmful interference and This device must accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with manufacturer s instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipm
23. Product introduction 6 USB connectors 10 1 pin USB56 USB78 USB910 These connectors are for USB 2 0 ports Connect the USB module cable to any of these connectors then install the module to a slot opening at the back of the system chassis These USB connectors comply with USB 2 0 specification that supports up to 480Mbps connection speed DI es Bm Q KD USB56 PIN1 o o USB 5V USB Ee USB P6 USB 5V USB _P8 USB_P8 USB 5V USB _P10 USB_P10 2 Q Q Zo Zo Zo oz oz oz HEEN USB78 HEEN USB910 bt J Sach WK E REENEN MP A GE GER GER am Damm Damm Nya ana ana 258 258 258 M4A78LT Series USB2 0 connectors Never connect a 1394 cable to the USB connectors Doing so will damage the motherboard The USB 2 0 module is purchased separately 7 Digital audio connector 4 1 pin SPDIF_OUT This connector is for an additional Sony Philips Digital Interface S PDIF port o oe i u 5 A fe ee do JE gt a mE az S D GO H CEET SPDIF_OUT M4A78LT Series Digital audio connector aN Ensure that the audio device of Sound playback is Realtek High Definition Audio the name may be different based on the OS Go to Start gt Control Panel gt Sounds and Audi
24. SE ONLY AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies and are used only for identification or explanation and to the owners benefit without intent to infringe Offer to Provide Source Code of Certain Software This product may contain copyrighted software that is licensed under the General Public License GPL and under the Lesser General Public License Version LGPL The GPL and LGPL licensed code in this product is distributed without any warranty Copies of these licenses are included in this product You may obtain the complete corresponding source code as defined in the GPL for the GPL Software and or the complete corresponding source code of the LGPL Software with the complete machine readable work that uses the Library for a period of three years after our last shipment of the product including the GPL Software and or LGPL Software which will be no earlier than December 1 2011 either 1 for free by downloading it from http support asus com download or 2 for the cost of reproduction and shipment which is dependent on the preferred carrier and the
25. Series 1 11 1 12 1 7 2 Memory configurations You may install 512MB 1GB 2GB and 4GB unbuffered non ECC DDR3 DIMMs into the DIMM sockets N You may install varying memory sizes in Channel A and Channel B The system maps the total size of the lower sized channel for the dual channel configuration Any excess memory from the higher sized channel is then mapped for single channel operation Always install DIMMs with the same CAS latency For optimum compatibility we recommend that you obtain memory modules from the same vendor We recommend that you install the memory modules from the blue slots for better overclocking capability Due to the CPU specification AMD 100 and 200 series CPUs support up to DDR3 1066MHz With ASUS design this motherboard can support up to DDR3 1333MHz When overclocking some AMD CPUs may not support DDR3 1600MHz or higher frequency DIMMs Due to the memory address limitation on 32 bit Windows OS when you install 4GB or more memory on the motherboard the actual usable memory for the OS can be about 3GB or less For effective use of memory we recommend that you do any of the followings Install a maximum of 3GB system memory if you are using a 32 bit Windows Os Use a 64 bit Windows OS if you want to install 4GB or more memory on the motherboard This motherboard does not support DIMMs made up of 256 megabits Mb chips or less M4A78LT series Motherboards Qualified V
26. Service Provider ISP This utility is available in the support DVD that comes with the motherboard package Installing ASUS Update To install ASUS Update 1 Place the support DVD into the optical drive The Drivers menu appears 2 Click the Utilities tab then click ASUS Update 3 Follow the onscreen instructions to complete the installation Quit all Windows applications before you update the BIOS using this utility Updating the BIOS To update the BIOS 1 From the Windows desktop click Start gt Programs gt ASUS gt ASUS Update gt ASUS Update to launch the ASUS Update utility 2 From the dropdown list select either of the following methods Updating from the Internet a Select Update BIOS from the Internet then click Next b Select the ASUS FTP site nearest you to avoid network traffic or click Auto Select then click Next c From the FTP site select the BIOS version that you want to download then click Next ASUS M4A78LT Series 2 1 2 2 Y 3 The ASUS Update utility is capable of updating itself through the Internet Always update the utility to avail all its features Updating from a BIOS file a Select Update BIOS from a file then click Next b Locate the BIOS file from the Open window then click Open Follow the onscreen instructions to complete the updating process 2 1 2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you to update the BIOS without usin
27. Temperature xxx C xxx F or Ignored MB Temperature xxx C xxx F or Ignored The onboard hardware monitor automatically detects and displays the motherboard and CPU temperatures Select Ignored if you do not wish to display the detected temperatures CPU Chassis Fan Speed N A xxxxRPM or Ignored The onboard hardware monitor automatically detects and displays the CPU Chassis fan speeds in rotations per minute RPM If the fan is not connected to the motherboard the field shows N A Select gnored if you do not want the detected speed to be displayed VCORE Voltage 3 3V Voltage 5V Voltage 12V Voltage xx xxxV or Ignored The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators CPU Q Fan Function Enabled Enables or disables the ASUS Q Fan feature that smartly adjusts the CPU fan speeds for more efficient system operation Configuration options Disabled Enabled I 4 The following item appears only when you set CPU Q Fan Function to Enabled CPU Fan Speed Low Limit 200 RPM Allows you to manually set a lower limit for the CPU fan speed If the CPU fan speed is below the specified limit the system sends out warning beeps Configuration options 600 RPM 500 RPM 400 RPM 300 RPM 200 RPM Ignored CPU Q Fan Mode Standard Allows you to set the appropriate performance level of the CPU fan Standard Sets to Standard to make the CPU fan automa
28. UTER INC Address 15 Li Te Road Peitou Taipei Taiwan 11259 Telephone 886 2 2894 3447 Fax 886 2 2890 7798 E mail info asus com tw Web site www asus com tw Technical Support Telephone 86 21 38429911 Online support support asus com ASUS COMPUTER INTERNATIONAL America Address 800 Corporate Way Fremont CA 94539 USA Telephone 1 510 739 3777 Fax 1 510 608 4555 Web site usa asus com Technical Support Telephone 1 812 282 2787 Support fax 1 812 284 0883 Online support support asus com ASUS COMPUTER GmbH Germany and Austria Address Harkort Str 21 23 D40880 Ratingen Germany Fax 49 2102 9599 11 Online contact www asus com de sales Technical Support Component Telephone 49 1805 010923 System Notebook Eee LCD Telephone 49 1805 010920 Support Fax 492102959911 Online support www asus com de support Website www asus com de news aunyeuBbis usys Aner owen 039 uonsog DupJew AyWOJUOD D3 Lboz 6urysew 39 Buixyye u B5 q oi 1ea LLOZ pz uer ae uonesejoag Bumeu 3554 LOLOLL Yon sooz Loez9 Na O 6002 82 ON 03 uoneinGey sooz L0ez9 Na O 6002 29 ON 03 uoneinboy sooz L0ez9 na LJ 8002 5221 ON 03 uoneIn6 u sanded d1i3 23 SZL 600Z 1 6002 LLW 9002 1 09609 N3 Dd 800Z LY 900Z LY Z00Z S9009 N3 L 900Z 1 0S609 N3 O SAn9911q ANT 93 56 9002 X 10 6002 1 LA geg Zoe Na LI 0 SO 900Z L E LAZ ISE Loe N3 L D 60 2002 L E LAE IZE zoe
29. agement for advanced operating systems Serial ATA 3Gb s technology and RAID support N i This motherboard supports hard drives based on the Serial ATA SATA um 3Gb s storage specification delivering enhanced scalability and doubling the bus bandwidth for high speed data retrieval and save It also supports RAID 0 RAID 1 and RAID 10 configurations for Serial ATA hard drives 8 channel high definition audio Enjoy high end sound quality on your PC The onboard 8 channel High Definition Audio CODEC enables high quality 192KHz 24 bit audio output jack sensing feature and multi streaming technology that simultaneously sends different audio streams to different destinations You can now talk to your partners on the headphone while playing multi channel network games EN a 100 All High quality Conductive Polymer Capacitors Deg M4A78LT only This motherboard uses all high quality conductive polymer capacitors for durability improved lifespan and enhanced thermal capacity Chapter 1 Product introduction 1 3 2 Innovative ASUS features Core Unlocker E ASUS Core Unlocker simplifies the activation of a latent AMD CPU en meter with just pressing a key Enjoy an instant performance boost by simply unlocking the extra cores without performing complicated BIOS changes ASUS EPU ASUS EPU is a unique power saving technology that detects the current system loadings and adjusts the power consumption in real
30. ash drive into M4A78LT ROM for M4A78LT or M478LTLE ROM for M4A78LT LE Download the latest BIOS file from the ASUS website at www asus com Recovering the BIOS To recover the BIOS 1 Turn on the system 2 Insert the support DVD to the optical drive or the removable device that contains the BIOS file to the USB port or to the floppy disk drive if supported 3 The utility automatically checks the devices for the BIOS file When found the utility reads the BIOS file and starts flashing the corrupted BIOS file 4 Turn off the system after the utility completes the updating process and turn on again j N DO NOT shut down or reset the system while updating the BIOS Doing so can cause Ce system boot failure Ensure to load the BIOS default settings to ensure system compatibility and stability Select lt the Load Setup Defaults item under the Exit menu Refer to section 2 8 Exit menu for details ASUS M4A78LT Series 2 3 2 4 2 2 BIOS setup program Use the BIOS Setup program to update the BIOS or configure its parameters The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program Entering BIOS Setup at startup To enter BIOS Setup at startup Press lt Delete gt during the Power On Self Test POST If you do not press lt Delete gt POST continues with its routines Entering BIOS Setup after POST To enter BIOS Setup after POST Press lt Ctrl gt lt
31. ata transfer rate of the Serial ATA 3Gb s is faster than the standard parallel ATA with 133MB s Ultra DMA133 If you install Serial ATA hard disk drives you can create a RAID 0 RAID 1 or RAID 10 set through the onboard chipset SATAS SATA6 l l GND RSATA_TXP5 GND RSATA_TXNS RSATA_RXPS GND RSATA_RXNS gt L GND GND RSATA_TXP3 RSATA_TXN3 RSATA_RXN3 RSATA_RXP1 RSATA_TXP1 g GND E RSATA_TXNI J gt RSATA_RXP3 RSATA_RXN1 GND GND M4A78LT Series SATA connectors N GND RSATA_RXP6 RSATA_RXNG GND gt GND RSATA_TXP4 GND RSATA_TXN4 RSATA_RXP4 GND RSATA_RXN4 3 RSATA_RXN2 RSATA_RXP2 RSATA_TXN2 RSATA_TXP2 GND GND GND Install the Windows XP Service Pack 3 or later versions before using Serial ATA If you intend to create a SATA RAID set set the type of the SATA connectors to RAID in the BIOS See 2 3 4 SATA Configuration for details The motherboard does not provide a floppy disk drive connector You could use a USB floppy disk drive when installing Windows XP operating system on a hard disk drive that includes a RAID AHCI set Due to Windows XP limitation Windows XP may not recognize some USB floppy disk drives For more details on RAID AHCI refer to the RAID AHCI Supplementary Guide included in the folder named Manual in
32. ation options Disabled Enabled Advanced Clock Calibration Disabled Adjusts the processor s overclocking capability When this item is set to Auto the BIOS automatically adjusts this function When this item is set to All Cores the processor has the best overclocking performance When this item is set to Per Core the processor s overclocking capability is enhanced Configuration options Disabled Auto All Cores Per Core 2 4 3 Chipset NorthBridge Configuration DRAM Controller Configuration Bank Interleaving Auto Allows you to enable the bank memory interleaving Configuration options Disabled Auto Channel Interleaving Auto Allows you to enable the channel memory interleaving Configuration options Disabled Address bits 6 Address bits 12 Auto XOR of Address bits 20 16 6 XOR of Address bits 20 16 9 Enable Clock to All DIMMs Disabled Enables unused Clocks to DIMMs even though memory slots are not populated Configuraiton options Enabled Disabled MemClk Tristate C3 ATLVID Disabled Allows you to enable or disable MemClk Tri Stating during C3 and Alt VID Configuration options Disabled Enabled Memory Hole Remapping Enabled Allows you to enable or disable memory remapping around memory hole Configuration options Disabled Enabled DCT Unganged Mode Always Allows you to select the unganged DRAM mode 64 bit width Configuration options Auto Always Power Down Enable D
33. ce Configuration Serial Port Address 3F8 RQ4 Allows you to select the Serial Port base address Configuration options Disabled SF8 IRQ4 2F8 IRQ3 3E8 IRQ4 2E8 IRQ3 Parallel Port Address 378 Allows you to select the Parallel Port base addresses Configuration options Disabled 378 278 3BC Parallel Port Mode Normal Allows you to select the Parallel Port mode Configuration options Normal EPP ECP EPP ECP Parallel Port IRQ IRQ7 Configuration options IRQ5 IRQ7 HDAudio Controller Enabled Enables or disables the high definition audio controller Configuration options Disabled Enabled Front Panel Select HD Audio Configuration options AC97 HD Audio OnBoard LAN Controller Enabled Configuration options Disabled Enabled OnBoard LAN Boot ROM Disabled Configuration options Disabled Enabled 2 4 5 PCIPnP The PCI PnP menu items allow you to change the advanced settings for PCI PnP devices The menu includes setting IRQ and DMA channel resources for either PCI PnP or legacy ISA devices and setting the memory size block for legacy ISA devices AN Take caution when changing the settings of the PCI PnP menu items Incorrect field values Ce can cause the system to malfunction Plug and Play O S No When this item is set to No BIOS configures all the devices in the system When this item is set to Yes and if you install a Plug and Play operating system
34. d information on ASUS hardware and software products Refer to the ASUS contact information 2 Optional documentation Your product package may include optional documentation such as warranty flyers that may have been added by your dealer These documents are not part ofthe standard package Typography Bold text Indicates a menu or an item to select Italics Used to emphasize a word or a phrase lt Key gt Keys enclosed in the less than and greater than sign means that you must press the enclosed key Example lt Enter gt means that you must press the Enter or Return key lt Key1 gt lt Key2 gt lt Key3 gt If you must press two or more keys simultaneously the key names are linked with a plus sign Example lt Ctrl gt lt Alt gt lt D gt M4A78LT Series specifications summar Chipset System bus Memory Expansion slots Storage USB Special features ASUS unique features AMD Socket AM3 AMD Phenom II Athlon II Sempron 100 series processors Supports 45nm CPU AMD Cool n Quiet Technology Supports CPU up to 125W Refer to www asus com for the AMD CPU support list AMD 760G 780L SB710 Up to 5200 MT s HyperTransport 3 0 interface Dual channel memory architecture 4 x DIMM max 16GB DDR3 2000 0 C 1866 0 C 1800 0 C 1600 0 C 1333 1066 MHz ECC and non ECC un buffered memory Dual channel memory architecture Due to CPU spec AMD
35. e This symbol of the crossed out wheeled bin indicates that the battery should not be placed in municipal waste Safety information Electrical safety To prevent electric shock hazard disconnect the power cable from the electric outlet before relocating the system When adding or removing devices to or from the system ensure that the power cables for the devices are unplugged before the signal cables are connected If possible disconnect all power cables from the existing system before you add a device Before connecting or removing signal cables from the motherboard ensure that all power cables are unplugged Seek professional assistance before using an adapter or extension cord These devices could interrupt the grounding circuit Ensure that your power supply is set to the correct voltage in your area If you are not sure about the voltage of the electrical outlet you are using contact your local power company If the power supply is broken do not try to fix it by yourself Contact a qualified service technician or your retailer Operation safety Before installing the motherboard and adding devices on it carefully read all the manuals that came with the package Before using the product ensure that all cables are correctly connected and the power cables are not damaged If you detect any damage contact your dealer immediately To avoid short circuits keep paper clips screws and staples away from connectors slots s
36. eatures 1 3 1 Product highlights 2A AA AMD Phenom II Athlon Il Sempron 100 series CPU a ead support gt This motherboard supports AMD Socket AM3 multi core processors with unique L3 cache and delivers better overclocking capabilities with less Am power consumption It features dual channel DDR3 memory support and accelerates data transfer rate up to 5200MT s via HyperTransport 3 0 based system bus This motherboard also supports AMD CPUs in the new 45nm manufacturing process ASUS M4A78LT Series 1 1 Sn AMD Cool n Quiet Technology This motherboard supports the AMD Cool n Quiet technology which monitors system operation and automatically adjusts CPU voltage and frequency for a cool and quiet operating environment HyperTransport 3 0 support q HyperTransport 3 0 technology provides 2 6 times more bandwidth mesono up than HT1 0 that radically improves system efficiency for a smoother and faster computing environment Dual Channel DDR3 2000 0 C support This motherboard supports DDR3 memory that features data transfer rates of 2000 O C 1866 O C 1800 O C 1600 O C 1333 1066 MHz to meet the higher bandwidth requirements of the latest operating system 3D graphics multimedia and Internet applications Gigabit LAN solution The onboard LAN controller is a highly integrated Gb LAN controller It is kd enhanced with an ACPI management function to provide efficient power man
37. endors Lists QVL DDR3 2000 0 C MHz capability i i DIMM support o ss Chip Chip Vendor Part No Size DS Brand NO CL Voltage Transcend TX2400KLU 4GK XMP 4GB 2x2GB DS 9 11 9 28 1 65V DDR3 1866 O C MHz capability Voltage DIMM support AY B c Corsair CMT4GX3M2A1866C9 XMP 4GB 2 x 2GB 1 65V Kingston KHX1866C9D3T1K3 3GX XMP 3GB 3 x 1GB gt lt lt 1 65V Kingston KHX1866C9D3T1K3 6GX XMP 6GB 3 x 2GB gt z lt 1 65V OCZ3G1866LV4GK 4GB 2 x 2GB gt lt 10 10 10 27 1 65V OCZ3P1866LV4GK 4GB 2 x 2GB 9 9 9 27 1 65V Chapter 1 Product introduction DDR3 1800 0 C MHz capability Vendor Part No OCZ OCZ3P18004GK AD31600E001GM O U3K ss Chip DS Brand Voltage DIMM support AY B c 4GB 2 x 2GB DS Voltage DIMM support 3GB 3 x 1GB 1 65V 1 85V TR3X3G1600C8D XMP 3GB 3 x 1GB 1 65V CMP4GX3M2A1600C8 XMP 4GB 2 x 2GB 1 65V CMT4GX3M2A1600C6 XMP 4GB 2 x 2GB 1 65V CMX4GX3M2A1600C9 XMP 4GB 2 x 2GB 1 65V CMX4GX3M2A1600C9 XMP TR3X6G1600C8D G XMP 4GB 2 x 2GB 6GB 3 x 2GB 1 65V 1 65V TR3X6G1600C9 G XMP 6GB 3 x 2GB 1 65V CMX8GX3M4A1600C9 XMP 8GB 4 x 2GB 1 65V BL25664BN1608 16FF XMP 6GB 3 x 2GB F3 12800CL9D 2GBNQ XMP 2GB 2 x 1GB 1 5V 1 6V F3 12800CL7D 4GBRH XMP 4GB 2 x 2GB 1 6V F3 12800CL7D 4GBECO XMP 4GB 2 x 2GB XMP 1 35V F3 12800CL7D 4GBRM XMP 4GB 2 x 2GB 1 6V
38. ent and receiver Connect the equipment to an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help N The use of shielded cables for connection of the monitor to the graphics card is required se to assure compliance with FCC regulations Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications This class B digital apparatus complies with Canadian ICES 003 REACH Complying with the REACH Registration Evaluation Authorisation and Restriction of Chemicals regulatory framework we published the chemical substances in our products at ASUS REACH website at http csr asus com english REACH htm DO NOT throw the motherboard in municipal waste This product has been designed to enable proper reuse of parts and recycling This symbol of the crossed out wheeled bin indicates that the product electrical and electronic equipment should not be placed in municipal waste Check local regulations for disposal of electronic products DO NOT throw the mercury containing button cell battery in municipal wast
39. es Clear RTC RAM To erase the RTC RAM 1 2 Turn OFF the computer and unplug the power cord Move the jumper cap from pins 1 2 default to pins 2 3 Keep the cap on pins 2 3 for about 5 10 seconds then move the cap back to pins 1 2 Plug the power cord and turn ON the computer Hold down the lt Del gt key during the boot process and enter BIOS setup to reenter data Except when clearing the RTC RAM never remove the cap on CLRTC jumper default position Removing the cap will cause system boot failure Ifthe steps above do not help remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data After clearing the CMOS reinstall the battery You do not need to clear the RTC when the system hangs due to overclocking For system failure due to overclocking use the CPU Parameter Recall C P R feature Shut down and reboot the system so the BIOS can automatically reset parameter settings to default values 1 19 ASUS M4A78LT Series USB device wake up 3 pin USBPW1 4 USBPW5 10 Set these jumpers to 5V to wake up the computer from S1 sleep mode CPU stopped DRAM refreshed system running in low power mode using the connected USB devices Set these jumpers to 5VSB to wake up the compurer from S3 and S4 sleep modes no power to CPU DRAM in slow refresh power supply in reduced power mode USBPW
40. g an OS based utility Before you start using this utility download the latest BIOS file from the ASUS website at www asus com To update the BIOS using EZ Flash 2 1 2 Insert the USB flash disk that contains the latest BIOS file to the USB port then launch EZ Flash 2 in either of these two ways Press lt Alt gt lt F2 gt during POST Enter the BIOS setup program Go to the Tools menu to select EZ Flash 2 and press lt Enter gt to enable it Press lt Tab gt to switch between drives until the correct BIOS file is found ASUSTek EZ Flash 2 BIOS ROM Utility V3 44 FLASH TYPE BOARD VER DATE Enter Select or Load Tab Switch V Drive Info Up Down Home End Move B Backup ESC Exit When the correct BIOS file is found EZ Flash 2 performs the BIOS update process and automatically reboots the system when done Chapter 2 BIOS information A This function supports USB flash disks with FAT 32 16 format and single partition only DO NOT shut down or reset the system while updating the BIOS to prevent system boot failure 2 1 3 ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file when it fails or gets corrupted during the updating process You can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains the BIOS file A Before using this utility rename the BIOS file in the USB fl
41. he current BIOS file to the BIOS Flash In the Name sub item type your profile name and press lt Enter gt and then choose a profile number to save your CMOS settings in the Save to sub item Load CMOS Profiles Allows you to load the previous BIOS settings saved in the BIOS Flash Press lt Enter gt and choose a profile to load Start O C Profile Allows you to run the utility to save and load CMOS Press lt Enter gt to run the utility ASUSTek O C Profile Utility v1 44 Enter Select or Load Tab Switch V Drive Info Up Down Home End Move B Backup ESC Exit This function can support devices such as a USB flash disk with FAT 32 16 format and single partition only DO NOT shut down or reset the system while updating the BIOS to prevent the system boot failure We recommend that you update the BIOS file only coming from the same memory CPU configuration and BIOS version Only the CMO file can be loaded Chapter 2 BIOS information 2 8 Exit menu The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items and save or discard your changes to the BIOS items M4A78LT BIOS Setu Version 0307 Boot Tools Exit Main Advanced Power Exit Options Exit system setup Eh after saving the cahnges Exit amp Discard Changes Discard Changes F10 key can be used for this operation Load Setup Defaults Pressing lt Esc gt does not immediately exit this men
42. imary IDE Master Slave SATA 1 2 3 4 5 6 While entering Setup the BIOS automatically detects the presence of IDE SATA devices There is a separate submenu for each IDE SATA device Select a device item then press lt Enter gt to display the IDE SATA device information The BIOS automatically detects the values opposite the dimmed items Device Vendor Size LBA Mode Block Mode PIO Mode Async DMA Ultra DMA and SMART monitoring These values are not user configurable These items show Not Detected if no IDE SATA device is installed in the system Type Auto Selects the type of IDE drive Setting this item to Auto allows automatic selection of the appropriate IDE device type Select CDROM if you are specifically configuring a CD ROM drive Select ARMD ATAPI Removable Media Device if your device is either a ZIP LS 120 or MO drive Configuration options Not Installed Auto CDROM ARMD V This item only appears in the Primary IDE Master Slave menus LBA Large Mode Auto Enables or disables the LBA mode Setting this item to Auto enables the LBA mode if the device supports this mode and if the device was not previously formatted with LBA mode disabled Configuration options Disabled Auto Block Multi Sector Transfer Mode Auto Enables or disables data multi sectors transfers When this item is set to Auto the data transfer from and to the device occurs multiple sectors at a time if the device supports mul
43. in 1 20000V Memory Clock Mode Auto Sets the memory clock mode Configuration options Auto Manual The following item only appears when you set Memory Clock Mode to Manual Memclock Value 400MHz Selects the DRAM frequency programming method Configuration options 400MHz 533MHz 667MHz 800MHz DRAM Timing Configuration a The configuration options for some of the following items vary depending on the DIMMs you install on the motherboard DRAM CAS Latency Auto Configuration options Auto 4 CLK 12 CLK DRAM RAS to CAS Delay Auto Configuration options Auto 5 CLK 12 CLK DRAM RAS PRE Time Auto Configuration options Auto 5 CLK 12 CLK DRAM RAS ACT Time Auto Configuration options Auto 15 CLK 30 CLK DRAM READ to PRE Time Auto Configuration options Auto 4 CLK 5 CLK 6 CLK 7 CLK ASUS M4A78LT Series 2 11 2 12 DRAM Row Cycle Time Auto Configuration options Auto 11 CLK 41 CLK DRAM WRITE Recovery Time Auto Configuration options Auto 5 CLK 6 CLK 7 CLK 8 CLK 10 CLK 12 CLK DRAM RAS to RAS Delay Auto Configuration options Auto 4 CLK 5 CLK 6 CLK 7 CLK DRAM READ to WRITE Delay Auto Configuration options Auto 3 CLK 17 CLK DRAM WRITE to READ Delay DD Auto Configuration options Auto 2 CLK 10 CLK DRAM WRITE to READ Delay SD Auto Configuration options Auto 4 CLK 5 CLK
44. isabled Allows you to enable or disable DDR power down mode Configuration options Disabled Enabled ASUS M4A78LT Series 2 13 ECC Configuration ECC Mode Disabled Enables or disables the DRAM ECC that allows the hardware to report and correct memory errors automatically Configuration options Disabled Basic Good Super Max User Internal Graphics Primary Video Controller GFX0 GPP PCI Selects the primary display adapter Configuration options GFX0 GPP PCl GPP GFX0 PCI PCI GFX0 GPP GFXO primary video controller on a PCle x16 slot GPP primary video controller on a PCle x1 slot PCI primary video controller on a PCI slot Hybrid Crossfire Disabled Enables or disables the Hybird Crossfire function Configuration options Enabled Disabled UMA Frame Buffer Size Auto Selects the UMA frame buffer size Configuration options Auto 32MB 64MB 128MB 256MB 512MB 1GB The 512MB option only appears when you install 1GB system memory or more gn The 1GB option only appears when you install 2GB system memory or more Surround View Auto Disables or enables the Surround View function Configuration options Auto Disabled Enabled This item becomes user configurable when you install an ATI graphics card into the PCle x16 slot Frame Buffer Location Above 4G Configuration options Below 4G Above 4G Chapter 2 BIOS information 2 4 4 Onboard Devi
45. location where you want to have it shipped to by sending a request to ASUSTeK Computer Inc Legal Compliance Dept 15 Li Te Rd Beitou Taipei 112 Taiwan In your request please provide the name model number and version as stated in the About Box of the product for which you wish to obtain the corresponding source code and your contact details so that we can coordinate the terms and cost of shipment with you The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as the corresponding binary object code This offer is valid to anyone in receipt of this information ASUSTeK is eager to duly provide complete source code as required under various Free Open Source Software licenses If however you encounter any problems in obtaining the full corresponding source code we would be much obliged if you give us a notification to the email address gpl asus com stating the product and describing the problem please do NOT send large attachments such as source code archives etc to this email address Contents let i Safety information About this guide u uuu uu u u uuu uuu ii M4A78LT Series specifications summar Chapter 1 Product introduction 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 Welcomel cesstassastcis stadastsncvectiactiasseistcusdandssesiuenstssninasnaaeaenia 1 1 Package contents Special features casas cccccias secceesespeceeaeaccsenstiesee
46. m and press lt Enter gt 2 On the password box key in a password containing up to six letters or numbers or both then press lt Enter gt 3 Confirm the password when prompted The message Password Installed appears after you successfully set your password To change the supervisor password follow the same steps as in setting a supervisor password To clear the supervisor password select the Change Supervisor Password then press lt Enter gt twice The message Password uninstalled appears A If you forget your BIOS password you can clear it by erasing the CMOS Real Time Clock RTC RAM See section 1 9 Jumpers for information on how to erase the RTC RAM After you have set a supervisor password the other items appear to allow you to change other security settings User Access Level Full Access This item allows you to select the access restriction to the Setup items Configuration options No Access View Only Limited Full Access No Access prevents user access to the Setup utility View Only allows access but does not allow change to any field Limited allows changes only to selected fields such as Date and Time Full Access allows viewing and changing all the fields in the Setup utility Chapter 2 BIOS information Change User Password Select this item to set or change the user password The User Password item on top of the screen shows the default Not Installed After you set a password this item shows In
47. motherboard component The illustration below shows the location of the onboard LED Ca I ao D r es d SB_PWR MARTOLT Serios o r D Ss ON HCH OFF al Standby Power Powered Off M4A78LT Series Onboard LED ASUS M4A78LT Series 1 5 Motherboard overview 1 5 1 Placement direction When installing the motherboard ensure that you place it into the chassis in the correct orientation The edge with external ports goes to the rear part ofthe chassis as indicated in the image below 1 5 2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the chassis N DO NOT overtighten the screws Doing so can damage the motherboard Place this side towards the rear of the chassis 1 6 Chapter 1 Product introduction 1 5 3 Motherboard layout 20 3cm 8 0in ke gt Ze NA KBMS PER CPU_FAN EPU ATKIN 3 2 3 S SIS 5 I 3 3 18 i 818 E E EE 2 s s s s elle llelle lt S
48. n PRI_IDE The onboard IDE connector is for Ultra DMA 133 100 66 signal cable There are three connectors on each Ultra DMA 133 100 66 signal cable blue black and gray Connect the blue connector to the motherboard s IDE connector then select one of the following modes to configure your devices Drive jumper setting Mode of device s Cable connector Black Master Black N Slave Gray Two devices Master Master Slave Slave Single device Cable Select or Master Cable Select Black or gray Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA cable connector This prevents incorrect insertion when you connect the IDE cable Use the 80 conductor IDE cable for Ultra DMA 133 100 66 IDE devices A If any device jumper is set as Cable Select ensure that all other device jumpers have the same setting Ce S ao s ee PRI_IDE m Ee i oa Pin a NOTE Orient the red markings B a on the IDE ribbon cable to PIN 1 M4A78LT Series IDE connector Chapter 1 Product introduction 4 Serial ATA connectors 7 pin SATA1 SATA2 SATA3 SATA4 SATA5 and SATA6 These connectors are for the Serial ATA signal cables for Serial ATA 3Gb s hard disk and optical disk drives The Serial ATA 3Gb s is backward compatible with Serial ATA 1 5Gb s specification The d
49. n our poatsoar souaraysajur Aue Wang emm 3IA p sn 2 pue u j jilur puey osne9 jou Ae MAP sm I suoypuoo om SurAo oj 201 0 pofgns st uonerdg samy OO4 MP JO SI med tw s rlduuo3 IAAP SUL uoneuniofug A eyuawapddns s1oyeipey Ieuonu lul q Medang SI wed DOF sroyerpey Iguonu lul O uedgng SI wed DOA suoqeipey euonusgurun g uedqnS SI ued OOA X suonp uio ds SuLMOT O Iy 0 suttoJuoO 31 L182VFN L18ZVPIN 4 quinN IPPON pseoqiayjJOW 9WEN 19npoid yonpoud y yey sarejoop Agen SSSP BO9 OTS LLLE GEL OTS ON xed uouq 6ESh6 VI Mowry Aem 378 10d 107 008 SSOIPPV Teuogeu aajuf d49 nduro snsy ureN Qd quods LLOI uono S 7 Wed OO PA ALINYOANOD YO NOILVUV TOA
50. ng some AMD CPU models may not support DDR3 1600 MHz or higher frequency DIMMs SS Single sided DS Double sided DIMM support A Supports one module inserted into any slot as single channel memory configuration B Supports one pair of modules inserted into either the blue slots or the black slots as one pair of dual channel memory configuration C Supports two pairs of modules inserted into both the blue slots and the black slots as two pairs of dual channel memory configuration When using a DDR3 2000MHz memory module ensure to install it on the A1 slot for better overclocking capability Visit the ASUS website at www asus com for the latest QVL NN Chapter 1 Product introduction 1 7 3 Installing a DIMM IN 8 Unplug the power supply before adding or removing DIMMs or other system components Cs Failure to do so can cause severe damage to both the motherboard and the components 1 Press the retaining clips outward to DIMM notch unlock a DIMM socket 2 Align a DIMM on the socket such that the notch on the DIMM matches the DIMM slot key on the socket Unlocked retaining clip DIMM slot key A DIMM is keyed with a notch so that it fits in only one direction DO NOT force a DIMM into S a socket in the wrong direction to avoid damaging the DIMM 3 Firmly insert the DIMM into the socket until the retaining clips snap back in place and the DIMM is properly seated Locked Retaini
51. ng Clip 1 7 4 Removing a DIMM To remove a DIMM 1 Simultaneously press the retaining clips outward to unlock the DIMM 4 y4 Support the DIMM lightly with your fingers when pressing the retaining clips The DIMM might get damaged when it flips out with extra force 2 Remove the DIMM from the socket ASUS M4A78LT Series 1 17 1 18 1 8 Expansion slots In the future you may need to install expansion cards The following sub sections describe the slots and the expansion cards that they support L Unplug the power cord before adding or removing expansion cards Failure to do so may R V cause you physical injury and damage motherboard components 1 8 1 Installing an expansion card To install an expansion card 1 Before installing the expansion card read the documentation that came with it and make the necessary hardware settings for the card 2 Remove the system unit cover if your motherboard is already installed in a chassis 3 Remove the bracket opposite the slot that you intend to use Keep the screw for later use 4 Align the card connector with the slot and press firmly until the card is completely seated on the slot 5 Secure the card to the chassis with the screw you removed earlier 6 Replace the system cover 1 8 2 Configuring an expansion card After installing the expansion card configure it by adjusting the software settings 1 Turn on the system and change the necessary BIOS
52. o Devices gt Sound Playback to configure the setting The S PDIF module is purchased separately ASUS M4A78LT Series 1 27 1 28 CPU and chassis fan connectors 4 pin CPU_FAN and 3 pin CHA_FAN Connect the fan cables to the fan connectors on the motherboard ensuring that the black wire of each cable matches the ground pin of the connector CPU_FAN CPU FAN PWR CPU FAN IN CPU FAN PWM GND E CHA_FAN GND 12V Rotation M4A78LT Series fan connectors Ji Z N DO NOT forget to connect the fan cables to the fan connectors Insufficient air flow inside the system may damage the motherboard components These are not jumpers DO NOT place jumper caps on the fan connectors Only the 4 pin CPU fan supports the ASUS Q Fan feature Chapter 1 Product introduction 1 11 Software support 1 11 1 Installing an operating system This motherboard supports Windows XP Vista 7 Operating Systems OS Always install the latest OS version and corresponding updates to maximize the features of your hardware FE Motherboard settings and hardware options vary Refer to your OS documentation for detailed information Ensure that you install Windows XP Service Pack 3 or later versions Windows Vista Service Pack 1 or later versions before installing the drivers for better compatibility and system stability 1 11 2 Support DVD info
53. ockets and circuitry Avoid dust humidity and temperature extremes Do not place the product in any area where it may become wet Place the product on a stable surface If you encounter technical problems with the product contact a qualified service technician or your retailer About this guide This user guide contains the information you need when installing and configuring the motherboard How this guide is organized This guide contains the following parts Chapter 1 Product introduction This chapter describes the features of the motherboard and the new technology it supports Chapter 2 BIOS information This chapter tells how to change system settings through the BIOS Setup menus Detailed descriptions of the BIOS parameters are also provided vii viii Conventions used in this guide To ensure that you perform certain tasks properly take note of the following symbols used throughout this manual 2 DANGER WARNING Information to prevent injury to yourself when trying to ZA complete a task AN CAUTION Information to prevent damage to the components when trying to 1 complete a task q IMPORTANT Instructions that you MUST follow to complete a task ff NOTE Tips and additional information to help you complete a task Where to find more information Refer to the following sources for additional information and for product and software updates 1 ASUS websites The ASUS website provides update
54. on s Energy related Products ErP ready and ErP requires products to meet certain energy efficiency requirements in regards to energy consumptions This is in line with ASUS vision of creating environment friendly and energy efficient products through product design and innovation to reduce carbon footprint of the product and thus mitigate environmental impacts Chapter 1 Product introduction 1 4 Before you proceed Take note of the following precautions before you install motherboard components or change any motherboard settings N Unplug the power cord from the wall socket before touching any component Ce Before handling components use a grounded wrist strap or touch a safely grounded object or a metal object such as the power supply case to avoid damaging them due to static electricity Hold components by the edges to avoid touching the ICs on them Whenever you uninstall any component place it on a grounded antistatic pad or in the bag that came with the component Before you install or remove any component switch off the ATX power supply and detach its power cord Failure to do so may cause severe damage to the motherboard peripherals or components Onboard LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON in sleep mode or in soft off mode This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any
55. or the AM3 socket The CPU fits in only one correct orientation DO NOT force the CPU into the socket to prevent bending the pins and damaging the CPU 1 6 1 Installing the CPU To install a CPU 1 Locate the CPU socket on the motherboard tawny H cI om mm om om M4A78LT Series CPU socket AM3 Chapter 1 Product introduction 2 Press the lever sideways to unlock the socket then lift it up to a 90 100 angle Ensure that the socket lever is lifted up to a 90 100 angle otherwise the CPU will not fit in completely Socket lever 3 Position the CPU above the socket such that the CPU corner with the gold triangle matches the socket corner with a small triangle 4 Carefully insert the CPU into the socket until it fits in place 7 The CPU fits only in one correct orientation H DO NOT force the CPU into the socket to prevent bending the pins and damaging the CPU Small triangle 5 When the CPU is in place push down the socket lever to secure the CPU The lever clicks on the side tab to indicate that it is locked 6 Install a CPU heatsink and fan following the instructions that comes with the heatsink package You can also refer to section 1 6 2 Installing heatsink and fan for instructions T Connect the CPU fan cable to the CPU_FAN connector on the motherboard EW ER CPU FAN
56. or the USB storage device to initialize Configuration options 10 Sec 20 Sec 30 Sec 40 Sec Emulation Type Auto Allows you to set the emulation type Configuration options Auto Floppy Forced FDD Hard Disk CDROM 2 16 Chapter 2 BIOS information 2 5 Power menu The Power menu items allow you to change the settings for the Advanced Configuration and Power Interface ACPI and the Advanced Power Management APM Select an item then press lt Enter gt to display the configuration options M4A78LT BIOS Setup Version 0307 Main Advanced Boot Tools Exit Power Settings Select the ACPI state used for System Suspend ACPI 2 0 Support Enabled ACPI APIC Support Enabled k APM Configuration P HW Monitor Configuration Anti Surge Support Select Screen Select Item Change Option General Help Save and Exit Exit v02 61 C Copyright 1985 2011 American Megatrends 2 5 1 Suspend Mode Auto Allows you to select the Advanced Configuration and Power Interface ACPI state to be used for system suspend Configuration options S1 POS Only S3 Only Auto 2 5 2 ACPI 2 0 Support Enabled Allows you to enable or disable the Advanced Configuration and Power Interface ACPI 2 0 support Configuration options Disabled Enabled 2 5 3 ACPI APIC Support Enabled Allows you to enable or disable the Advanced Configuration and Power Interface ACPI support in the Advanced Programmable Interrupt Controller APIC
57. rmation The Support DVD that comes with the motherboard package contains the drivers software applications and utilities that you can install to avail all motherboard features The contents of the Support DVD are subject to change at any time without notice Visit the ASUS website at www asus com for updates To run the Support DVD Place the Support DVD into the optical drive The DVD automatically displays the Drivers menu if Autorun is enabled on your computer Z The following screen is for reference only ASUS Install Click an icon to display Support DVD motherboard information Click an item to install If Autorun is NOT enabled on your computer browse the contents of the Support DVD to Geng locate the file ASSETUP EXE from the BIN folder Double click the ASSETUP EXE to run the DVD ASUS M4A78LT Series 1 29 1 30 Chapter 1 Product introduction BIOS information 2 1 Managing and updating your BIOS N Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the future Copy the original motherboard BIOS using the ASUS Update utility 2 1 1 ASUS Update The ASUS Update is a utility that allows you to manage save and update the motherboard BIOS in Windows environment ASUS Update requires an Internet connection either through a network or an Internet
58. rtesecpertecsazeeccseneses 1 3 1 Prod ct highilighiS o o uu 4 e 1 3 2 Innovative ASUS features Before YOU proceed U U u uuu uu Motherboard overview U u uuu 1 5 1 Placement direction 1 5 2 Screw holes u 1 5 3 Motherboard Jovout AEN 1 54 Layouticontents 2ete seen Central Processing Unit CPU I u u 1 6 1 Installing the CPU u uu k ana 1 6 2 Installing the heatsink and fon 1 10 EE E 1 11 1 7 1 OVGIVIEW ns einen 1 11 1 7 2 Memory co figurations u u uuu ulus 1 12 1 7 3 Installing a DIMM nn 1 17 1 7 4 Removing a DIMM u uu uuu 1 17 Expansion slots I U u u u 1 18 1 8 1 Installing an expansion Card 1 18 1 8 2 Configuring an expansion card 1 18 1 8 3 PO elots OS n a en 1 18 1 84 PCI Express x1 slots a 1 18 1 85 PCI Express x16 sot 1 18 IT 1 19 CONMOCLONS iia uuu Scctek ececcecesuacvectecee creas ceecexceueerceoeneerettaans 1 21 1 10 1 Rear panel porte 1 21 1 10 2 Internal connechors u N u uuu u aw 1 22 Contents 1 11 Software Support sr cectesccsncnecsecpecteueszecencteseerdes 1 11 1 Installing an operating system 1 11 2 Support DVD information sssssessssse ee eserierereerererrereree Chapter 2 BIOS information 2 1 2 2 2 3
59. rts either High Definition Audio or AC 97 audio standard Connect one end of the front panel audio I O module cable to this connector x S E SE Bo oye g 9 I Ze q ao o ouz 2 E zeu u OOO van o 2 212 ts AAFP Gelee GEEL PIN PIN1 Q Nero 2 SS SE 32223 Error 253 O00 wi daawa 5 zZ u i a A El HD audio compliant Legacy AC 97 Ct D m ax pin definition compliant definition M4A78LT Series Front panel audio connector We recommend that you connect a high definition front panel audio module to this connector to avail of the motherboard high definition audio capability If you want to connect a high definition front panel audio module to this connector set the Front Panel Select item in the BIOS to HD Audio See section 2 4 3 Chipset for qetails The front panel audio I O module is purchased separately Chapter 1 Product introduction 2 ATX power connectors 24 pin EATXPWR 4 pin ATX12V These connectors are for an ATX power supply The plugs from the power supply are designed to fit these connectors in only one orientation Find the proper orientation and push down firmly until the connectors completely fit
60. se the time needed to boot the system When this item is set to Disabled BIOS performs all the POST items Configuration options Disabled Enabled Full Screen Logo Enabled Enables or disables the full screen logo display feature Configuration options Disabled Enabled V Set this item to Enabled to use the ASUS MyLogo2 feature AddOn ROM Display Mode Force BIOS Sets the display mode for option ROM Configuration options Force BIOS Keep Current ASUS M4A78LT Series 2 19 2 20 Bootup Num Lock On Selects the power on state for the NumLock Configuration options Off On Wait for F1 If Error Enabled When this item is set to Enabled the system waits for the F1 key to be pressed when error occurs Configuration options Disabled Enabled Hit DEL Message Display Enabled When this item is set to Enabled the system displays the message Press DEL to run Setup during POST Configuration options Disabled Enabled 2 6 3 Security The Security menu items allow you to change the system security settings Select an item then press lt Enter gt to display the configuration options Change Supervisor Password Select this item to set or change the supervisor password The Supervisor Password item on top of the screen shows the default Not Installed After you set a password this item shows Installed To set a Supervisor Password 1 Select the Change Supervisor Password ite
61. stalled To set a User Password 1 Select the Change User Password item and press lt Enter gt 2 On the password box key in a password containing up to six letters or numbers or both then press lt Enter gt 3 Confirm the password when prompted The message Password Installed appears after you set your password successfully To change the user password follow the same steps as in setting a user password Clear User Password Select this item to clear the user password Password Check Setup When set to Setup BIOS checks for user password when accessing the Setup utility When set to Always BIOS checks for user password both when accessing Setup and booting the system Configuration options Setup Always 2 7 Tools menu The Tools menu items allow you to configure options for special functions Select an item then press lt Enter gt to display the sub menu M4A78LT BIOS Setu Version 0307 Main Advanced Power Boot To xit v02 61 C Copyright 1985 2011 American Megatrends 2 7 1 ASUS EZ Flash 2 Allows you to run ASUS EZ Flash 2 When you press lt Enter gt a confirmation message appears Use the left right arrow key to select between Yes or No then press lt Enter gt to confirm your choice See section 2 1 2 for details ASUS M4A78LT Series 2 21 2 22 2 7 2 ASUS O C Profile This item allows you to store or load multiple BIOS settings Add Your CMOS Profile Allows you to save t
62. system settings Power For changing the advanced power management APM configuration Boot For changing the system boot configuration Tools For configuring options for special functions Exit For selecting the exit options and loading default settings To select an item on the menu bar press the right or left arrow key on the keyboard until the desired item is highlighted 2 2 3 Navigation keys At the bottom right corner of a menu screen are the navigation keys for that particular menu Use the navigation keys to select items in the menu and change the settings Some of the navigation keys differ from one screen to another ASUS M4A78LT Series 2 5 2 2 4 Menu items The highlighted item on the menu bar displays the specific items for that menu For example selecting Main shows the Main menu items The other items Advanced Power Boot Tools and Exit on the menu bar have their respective menu items 2 2 5 Submenu items A solid triangle before each item on a menu screen means that the item has a submenu To display the submenu select the item and press lt Enter gt 2 2 6 Configuration fields These fields show the values for the menu items If an item is user configurable you can change the value of the field opposite the item You cannot select an item that is not user configurable A configurable field is enclosed in brackets and is highlighted when selected To change the value of a field select it then press
63. the operating system configures the Plug and Play devices not required for boot Configuration options No Yes ASUS M4A78LT Series 2 15 2 4 6 USB Configuration The items in this menu allows you to change the USB related features Select an item then press lt Enter gt to display the configuration options ya The Module Version and USB Devices Enabled items show the auto detected values If no USB device is detected the item shows None USB Functions Enabled Allows you to enable or disable the USB functions Configuration options Disabled Enabled USB 2 0 Controller Enabled Enables or disables USB 2 0 Controllers Configuration options Disabled Enabled Legacy USB Support Auto Allows you to enable or disable support for Legacy USB storage devices including USB flash drives and USB hard drives Setting to Auto allows the system to detect the presence of USB devices at startup If detected the USB controller legacy mode is enabled If no USB device is detected the legacy USB support is disabled Configuration options Disabled Enabled Auto USB 2 0 Coniroller Mode HiSpeed Allows you to configure the USB 2 0 controller in HiSpeed 480Mbps or Full Speed 12Mbps Configuration options FullSpeed HiSpeed ff The following items only appear when a USB storage device is plugged in USB Mass Storage Device Configuration USB Mass Storage Reset Delay 20 Sec Sets the maximum time that the BIOS waits f
64. the support DVD ASUS M4A78LT Series 1 25 1 26 System panel connector 20 8 pin PANEL This connector supports several chassis mounted functions PLED SPEAKER PLED Ge sl PLED PANEL Es fo PIN1 a ev eg on os E ais GE za 83 E W O O 03 Ey Ti ho en Pwrsw RESET 0 fh om m m mmm Requires an ATX power supply M4A78LT Series System panel connector System power LED 2 pin PLED This 2 pin connector is for the system power LED Connect the chassis power LED cable to this connector The system power LED lights up when you turn on the system power and blinks when the system is in sleep mode Hard disk drive activity LED 2 pin IDE_LED This 2 pin connector is for the HDD Activity LED Connect the HDD Activity LED cable to this connector The IDE LED lights up or flashes when data is read from or written to the HDD System warning speaker 4 pin SPEAKER This 4 pin connector is for the chassis mounted system warning speaker The speaker allows you to hear system beeps and warnings ATX power button soft off button 2 pin PWRSW This connector is for the system power button Reset button 2 pin RESET This 2 pin connector is for the chassis mounted reset button for system reboot without turning off the system power Chapter 1
65. ti sector transfer feature When this item is set to Disabled the data transfer from and to the device occurs one sector at a time Configuration options Disabled Auto PIO Mode Auto Selects the PIO mode Configuration options Auto 0 1 2 3 4 DMA Mode Auto Selects the DMA mode Configuration options Auto SMART Monitoring Auto Sets the Smart Monitoring Analysis and Reporting Technology Configuration options Auto Disabled Enabled 32Bit Data Transfer Enabled Enables or disables 32 bit data transfer Configuration options Disabled Enabled Chapter 2 BIOS information 2 3 4 System Information This menu gives you an overview of the general system specifications The BIOS automatically detects the items in this menu AMIBIOS Displays the auto detected BIOS information Processor Displays the auto detected CPU specification System Memory Displays the auto detected system memory 2 4 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices Take caution when changing the settings of the Advanced menu items Incorrect field values can cause the system to malfunction M4A78LT BIOS Setup Version 0307 Boot Tools Exit nfiguration v02 61 C Copyright 1985 2011 American Megatrends Inc JumperFree Configuration The items and configuration options in this menu may vary depending on the AMD CPU type N
66. tically adjust depending on the CPU temperature Silent Sets to Silent to minimize the fan speed for quiet CPU fan operation Turbo Set to Turbo to achieve maximum CPU fan speed Manual Allows you to individually set the CPU fan parameters 2 5 6 Anti Surge Support Enabled Allows you to enable or disable the Anti Surge protection feature Configuration options Disabled Enabled 2 18 Chapter 2 BIOS information 2 6 Boot menu The Boot menu items allow you to change the system boot options Select an item then press lt Enter gt to display the submenu BA T BIOS Setup Version 0307 Boot Main Advanced Tools Exit Boot Device Priority v02 61 C Copyright 1985 2011 American Megatrends Inc 2 6 1 Boot Device Priority 1st xxth Boot Device These items specify the boot device priority sequence from the available devices The number of device items that appears on the screen depends on the number of devices installed in the system Configuration options Removable Dev Hard Drive ATAPI CD ROM Disabled Q To select the boot device during system startup press lt F8 gt when ASUS logo appears To access Windows OS in Safe Mode do any of the following Press lt F5 gt when ASUS logo appears Press lt F8 gt after POST 2 6 2 Boot Settings Configuration Quick Boot Enabled Enabling this item allows the BIOS to skip some power on self tests POST while booting to decrea
67. time ASUS Turbo Key ASUS Turbo Key allows you to turn the PC power button into an overclocking button After the easy setup Turbo Key boosts performances without interrupting ongoing work or games simply through pressing the button ASUS MyLogo2 Turn your favorite photos into 256 color boot logos to personalize your system SS ASUS CrashFree BIOS 3 3 ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to Cranes restore a corrupted BIOS file using the bundled support DVD or a USB flash disk that contains the BIOS file T ASUS EZ Flash 2 SE be ASUS EZ Flash 2 allows you to update the BIOS from a USB flash disk men before entering the OS s ASUS Q Fan ASUS Q Fan technology intelligently adjusts the CPU fan speed SES according to system loading to ensure a quiet cool and efficient operation ASUS Anti Surge Protection This special design protects expensive devices and the motherboard from damage caused by power surges from switching power supply unit PSU ASUS M4A78LT Series 1 3 GREEN 2 C P R CPU Parameter Recall The BIOS C P R feature automatically restores the CPU default settings when the system hangs due to overclocking failure C P R eliminates the need to open the system chassis and clear the RTC data Simply shut down and reboot the system and the BIOS automatically restores the CPU parameters to their default settings ErP ready The motherboard is European Uni
68. to 4 00x 5 00x 6 00x 7 00x 8 00x 9 00x 10 00x CPU Over Voltage Auto Sets the CPU over voltage The valid value ranges vary depending on your CPU model Use lt gt lt gt keys to adjust the ratio Configuration options Auto VDDNB Over Voltage Auto Sets the VDDNB over voltage The valid value ranges vary depending on your CPU model Use lt gt lt gt keys to adjust the ratio Configuration options Auto 2 10 Chapter 2 BIOS information A If the system becomes unstable after changing the setting set it back to Auto for safe mode LoadLine Calibration Auto Sets the LoadLine Configuration options Auto 0 3 225 6 450 9 675 12 90 16 125 19 35 22 575 25 8 29 025 32 25 35 475 38 7 41 925 45 15 48 375 51 6 54 825 58 05 61 275 64 5 67 725 70 95 74 175 77 4 80 625 83 85 87 075 90 3 93 525 96 75 100 HT Link Speed Auto Sets the HyperTransport link speed Configuration options Auto 200MHz 400MHz 600MHz 800MHZ 1 000MHZ 1200MHz 1400MHz 1600MHz 1800MHz 2000MHz HT Link Width Auto Sets the HyperTransport link width Configuration options Auto 8 Bit 16 Bit HT Over Voltage Auto Sets the HT over voltage The values range from 1 20000V to 1 38000V with a 0 01000V increment Use the lt gt lt gt keys to adjust the value Configuration options Auto Max 1 38000V M
69. tors 6 x SATA connectors 1 x Front panel audio connector 1 x CPU fan connector 1 x Chassis fan connector 1 x IDE connector 1 x System panel connector 1 x S PDIF Out connector 1 x 24 pin EATX power connector 1 x 4 pin ATX 12V power connector 8 Mb Flash ROM AMI BIOS PnP DMI v2 0 WfM 2 0 ACPI v2 0a SM BIOS v2 5 Accessories 2 x Serial ATA cables 1 x I O shield 1 x User Manual Support DVD Drivers ASUS utilities ASUS Update Anti virus software OEM version Form factor ATX form factor 12 in x 8 in 30 5 cm x 20 3 cm Specifications are subject to change without notice Product introduction 1 1 Welcome Thank you for buying an ASUS M4A78LT Series motherboard The motherboard delivers a host of new features and latest technologies making it another standout in the long line of ASUS quality motherboards Before you start installing the motherboard and hardware devices on it check the items in your package with the list below 1 2 Package contents Check your motherboard package for the following items Motherboard ASUS M4A78LT Series motherboard Cables 2 x Serial ATA cables Accessories 1 x I O shield Application DVD ASUS motherboard Support DVD Documentation User Manual VA M4A78LT Series motherboards include M4A78LT and M4A78LT LE two models The SCH package contents vary from models If any of the items is damaged or missing contact your retailer 1 3 Special f
70. u Select one of the options from this lt menu or lt F10 gt from the legend bar to exit Exit amp Save Changes Once you are finished making your selections choose this option from the Exit menu to ensure the values you selected are saved to the CMOS RAM An onboard backup battery sustains the CMOS RAM so it stays on even when the PC is turned off When you select this option a confirmation window appears Select OK to save changes and exit Exit amp Discard Changes Select this option only if you do not want to save the changes that you made to the Setup program If you made changes to fields other than System Date System Time and Password the BIOS asks for a confirmation before exiting Discard Changes This option allows you to discard the selections you made and restore the previously saved values After selecting this option a confirmation appears Select OK to discard any changes and load the previously saved values Load Setup Defaults This option allows you to load the default values for each of the parameters on the Setup menus When you select this option or if you press lt F5 gt a confirmation window appears Select OK to load default values Select Exit amp Save Changes or make other changes before saving the values to the non volatile RAM ASUS M4A78LT Series 2 23 2 24 Chapter 2 BIOS information ASUS contact information ASUSTeK COMP

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