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Contents Notices...vi Safety information vii About this guide viii M4A78LT PLUS specifications summary ix Chapter 1: Product introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-2 1.2.1 Placement direction 1-2 1.2.2 Screw holes 1-2 1.2.3 Motherboard layout 1-3 1.2.4 Layout contents 1-4 1.3 Central Processing Unit (CPU 1-4 1.3.1 Installing the ...
Contents Notices...vi Safety information vii About this guide viii M4A78LT PLUS specifications summary ix Chapter 1: Product introduction 1.1 Before you proceed 1-1 1.2 Motherboard overview 1-2 1.2.1 Placement direction 1-2 1.2.2 Screw holes 1-2 1.2.3 Motherboard layout 1-3 1.2.4 Layout contents 1-4 1.3 Central Processing Unit (CPU 1-4 1.3.1 Installing the ...
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Where to find more keys simultaneously, the key names are linked with a plus sign (+). Refer to select. Typography Bold text Italics ++ Indicates a menu or an item to the ASUS contact information. 2. Example: ++ viii DANGER/WARNING: Information to prevent injury to yourself when trying... information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Detailed descriptions of the BIOS parameters are not part of the motherboard...
Where to find more keys simultaneously, the key names are linked with a plus sign (+). Refer to select. Typography Bold text Italics ++ Indicates a menu or an item to the ASUS contact information. 2. Example: ++ viii DANGER/WARNING: Information to prevent injury to yourself when trying... information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Detailed descriptions of the BIOS parameters are not part of the motherboard...
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M4A78LT PLUS specifications summary CPU Chipset System Bus Memory Expansion slots Storage / RAID LAN Audio USB ASUS unique features AMD® socket AM3 for AMD® Phenom™ II / Athlon™ II / Sempron™ 100 series processors Supports 45nm CPU ... Retasking (HD only) AMD® SB710 southbridge: - 10 USB 2.0/1.1 ports (4 ports at the mid-board, 6 ports at the back panel) ASUS Q-Fan ASUS CrashFree BIOS 3 ASUS EZ Flash 2 ASUS MyLogo 2™ 100% All High-quality Conductive Polymer Capacitors iCafe Memory Anti-theft (continued on the next page) ix We recommend a maximum of...
M4A78LT PLUS specifications summary CPU Chipset System Bus Memory Expansion slots Storage / RAID LAN Audio USB ASUS unique features AMD® socket AM3 for AMD® Phenom™ II / Athlon™ II / Sempron™ 100 series processors Supports 45nm CPU ... Retasking (HD only) AMD® SB710 southbridge: - 10 USB 2.0/1.1 ports (4 ports at the mid-board, 6 ports at the back panel) ASUS Q-Fan ASUS CrashFree BIOS 3 ASUS EZ Flash 2 ASUS MyLogo 2™ 100% All High-quality Conductive Polymer Capacitors iCafe Memory Anti-theft (continued on the next page) ix We recommend a maximum of...
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M4A78LT PLUS specifications summary Back panel I/O ports Internal connectors BIOS Manageability Accessories Support DVD Form factor 1 x PS/2 Mouse port (green) 1 x PS/2 Keyboard port (purple) 1 x COM port 1 x LAN (... connector 1 x Speaker connector 1 x 24-pin EATX power connector 1 x 4-pin ATX 12V power connector 8Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0, ACPI 2.0a, SM BIOS 2.6, ASUS EZ Flash 2, ASUS CrashFree BIOS 3 WfM 2.0, DMI 2.0, WOR by PME, PXE 2 x Serial ATA cables 1 x I/O shield 1 x User Manual 1 x Support DVD 2 x iCafe Memory Anti-theft locks Drivers...
M4A78LT PLUS specifications summary Back panel I/O ports Internal connectors BIOS Manageability Accessories Support DVD Form factor 1 x PS/2 Mouse port (green) 1 x PS/2 Keyboard port (purple) 1 x COM port 1 x LAN (... connector 1 x Speaker connector 1 x 24-pin EATX power connector 1 x 4-pin ATX 12V power connector 8Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM 2.0, ACPI 2.0a, SM BIOS 2.6, ASUS EZ Flash 2, ASUS CrashFree BIOS 3 WfM 2.0, DMI 2.0, WOR by PME, PXE 2 x Serial ATA cables 1 x I/O shield 1 x User Manual 1 x Support DVD 2 x iCafe Memory Anti-theft locks Drivers...
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... electricity. • Hold components by the edges to the motherboard, peripherals, or components. Refer to page x for buying an ASUS® M4A78LT PLUS motherboard! If any component, switch off the ATX power supply and detach its power cord. Chapter 1 Product introduction Thank you for...with the component. • Before you install or remove any of the items is damaged or missing, contact your motherboard package. ASUS M4A78LT PLUS 1-1 Before you start installing the motherboard, and hardware devices on a grounded antistatic pad or in your retailer. 1.1 Before you proceed...
... electricity. • Hold components by the edges to the motherboard, peripherals, or components. Refer to page x for buying an ASUS® M4A78LT PLUS motherboard! If any component, switch off the ATX power supply and detach its power cord. Chapter 1 Product introduction Thank you for...with the component. • Before you install or remove any of the items is damaged or missing, contact your motherboard package. ASUS M4A78LT PLUS 1-1 Before you start installing the motherboard, and hardware devices on a grounded antistatic pad or in your retailer. 1.1 Before you proceed...
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1.2 Motherboard overview 1.2.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the image below. 1.2.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the rear part of the chassis. The edge with external ports goes to the chassis. M4A78LT PLUS 1-2 Chapter 1: Product introduction Doing so can damage the motherboard. Place this side towards the rear of the chassis as indicated in the correct orientation. DO NOT overtighten the screws!
1.2 Motherboard overview 1.2.1 Placement direction When installing the motherboard, ensure that you place it into the chassis in the image below. 1.2.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the rear part of the chassis. The edge with external ports goes to the chassis. M4A78LT PLUS 1-2 Chapter 1: Product introduction Doing so can damage the motherboard. Place this side towards the rear of the chassis as indicated in the correct orientation. DO NOT overtighten the screws!
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... USB78, 1-21 3-pin CHA_FAN) USB910) 4. ATX power connectors (24-pin EATXPWR, 4-pin 1-18 11. Chassis intrusion connector (4-1 pin 1-21 ATX12V) CHASSIS) 5. AM3 CPU socket 1-4 12. M4A78LT PLUS M4A78LT PLUS CPU socket AM3 2.
... USB78, 1-21 3-pin CHA_FAN) USB910) 4. ATX power connectors (24-pin EATXPWR, 4-pin 1-18 11. Chassis intrusion connector (4-1 pin 1-21 ATX12V) CHASSIS) 5. AM3 CPU socket 1-4 12. M4A78LT PLUS M4A78LT PLUS CPU socket AM3 2.
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... for instructions. Hardware monitoring errors can also refer to plug this connector. Small triangle 5. CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND M4A78LT PLUS M4A78LT PLUS CPU fan connector DO NOT forget to prevent bending the pins and damaging the CPU! Install a CPU heatsink and fan following the instructions that comes... side tab to secure the CPU. When the CPU is locked. 6. Position the CPU above the socket such that it fits in place. Gold triangle 7. ASUS M4A78LT PLUS 1-5 Carefully insert the CPU into the socket to connect the CPU fan connector! 3.
... for instructions. Hardware monitoring errors can also refer to plug this connector. Small triangle 5. CPU_FAN CPU FAN PWM CPU FAN IN CPU FAN PWR GND M4A78LT PLUS M4A78LT PLUS CPU fan connector DO NOT forget to prevent bending the pins and damaging the CPU! Install a CPU heatsink and fan following the instructions that comes... side tab to secure the CPU. When the CPU is locked. 6. Position the CPU above the socket such that it fits in place. Gold triangle 7. ASUS M4A78LT PLUS 1-5 Carefully insert the CPU into the socket to connect the CPU fan connector! 3.
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3. When the fan and heatsink assembly is in place. Align the other end of the DDR3 DIMM sockets: DIMM_A1 DIMM_B1 M4A78LT PLUS Channel Channel A Channel B Sockets DIMM_A1 DIMM_B1 M4A78LT PLUS 240-pin DDR3 DIMM sockets ASUS M4A78LT PLUS 1-7 DDR3 modules are developed for better performance with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. A clicking...
3. When the fan and heatsink assembly is in place. Align the other end of the DDR3 DIMM sockets: DIMM_A1 DIMM_B1 M4A78LT PLUS Channel Channel A Channel B Sockets DIMM_A1 DIMM_B1 M4A78LT PLUS 240-pin DDR3 DIMM sockets ASUS M4A78LT PLUS 1-7 DDR3 modules are developed for better performance with two Double Data Rate 3 (DDR3) Dual Inline Memory Modules (DIMM) sockets. A clicking...
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... is the standard way of the following: - J1108BDBG-DJ-F(ECC) 7 D1288JPNDPLD9U 7 J1108BDSE-DJ-F 7 H5TQ2G83AFR 7 9GF22D9KPT 7 9HF22D9KPT(ECC) 7 9HF22D9KPT 7 9GF22D9KPT(ECC) 7 9BF27D9KPV 7-7-7-20 N2CB1G80CN-BE - - 7-7-7-20 - - M4A78LT PLUS Motherboard Qualified Vendors Lists (QVL) DDR3-1066MHz capability Vendors Part No. With ASUS design, this motherboard can be about 3GB or less.
... is the standard way of the following: - J1108BDBG-DJ-F(ECC) 7 D1288JPNDPLD9U 7 J1108BDSE-DJ-F 7 H5TQ2G83AFR 7 9GF22D9KPT 7 9HF22D9KPT(ECC) 7 9HF22D9KPT 7 9GF22D9KPT(ECC) 7 9BF27D9KPV 7-7-7-20 N2CB1G80CN-BE - - 7-7-7-20 - - M4A78LT PLUS Motherboard Qualified Vendors Lists (QVL) DDR3-1066MHz capability Vendors Part No. With ASUS design, this motherboard can be about 3GB or less.
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...; - 7-7-7-20 1.65V • • - 8-8-8-20 1.60V • • - 9-9-9-20 1.65V • A3P1GF3DGF 9-9-9-20 1.65V • • 8-8-8-24 1.5V • • (continued on the next page) ASUS M4A78LT PLUS 1-9 Size SS/ Chip DS Brand AD31333001GOU AD31333G001GOU AD31333002GOU AD31333G002GMU 78.A1GC6.9L1 78.A1GC6.9L1 CM3X1024-1333C9 TR3X3G1333C9 G CMX8GX3M4A1333C9 CT12864BA1339.8FF CT12872BA1339.9FF CT25664BA1339.16FF...
...; - 7-7-7-20 1.65V • • - 8-8-8-20 1.60V • • - 9-9-9-20 1.65V • A3P1GF3DGF 9-9-9-20 1.65V • • 8-8-8-24 1.5V • • (continued on the next page) ASUS M4A78LT PLUS 1-9 Size SS/ Chip DS Brand AD31333001GOU AD31333G001GOU AD31333002GOU AD31333G002GMU 78.A1GC6.9L1 78.A1GC6.9L1 CM3X1024-1333C9 TR3X3G1333C9 G CMX8GX3M4A1333C9 CT12864BA1339.8FF CT12872BA1339.9FF CT25664BA1339.16FF...
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.... 1. 1.4.3 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components. Press the retaining clips outward to avoid damaging the DIMM. 3. ASUS M4A78LT PLUS 1-11 Align a DIMM on the socket such that it fits in the wrong direction to unlock a DIMM socket. 2. Firmly insert the DIMM into a socket in...
.... 1. 1.4.3 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components. Press the retaining clips outward to avoid damaging the DIMM. 3. ASUS M4A78LT PLUS 1-11 Align a DIMM on the socket such that it fits in the wrong direction to unlock a DIMM socket. 2. Firmly insert the DIMM into a socket in...
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... After installing the expansion card, configure it and make the necessary hardware settings for later use . Install the software drivers for information on the slot. 5. ASUS M4A78LT PLUS 1-13 1.5 Expansion slots In the future, you may cause you removed earlier. 6. Before installing the expansion card, read the documentation that complys with the slot...
... After installing the expansion card, configure it and make the necessary hardware settings for later use . Install the software drivers for information on the slot. 5. ASUS M4A78LT PLUS 1-13 1.5 Expansion slots In the future, you may cause you removed earlier. 6. Before installing the expansion card, read the documentation that complys with the slot...
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... jumper default position. Shut down the key during the boot process and enter BIOS setup to overclocking, use the CPU Parameter Recall (C.P.R) feature. M4A78LT PLUS CLRTC 12 23 Normal (Default) M4A78LT PLUS Clear RTC RAM Clear RTC To erase the RTC RAM: 1. Removing the cap will cause system boot failure! • If the steps...
... jumper default position. Shut down the key during the boot process and enter BIOS setup to overclocking, use the CPU Parameter Recall (C.P.R) feature. M4A78LT PLUS CLRTC 12 23 Normal (Default) M4A78LT PLUS Clear RTC RAM Clear RTC To erase the RTC RAM: 1. Removing the cap will cause system boot failure! • If the steps...
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... wake-up the compurer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in the BIOS. KBPWR +5V +5VSB (Default) 12 23 M4A78LT PLUS M4A78LT PLUS Keyboard power setting ASUS M4A78LT PLUS 1-15 This feature requires an ATX power supply that can wake up the computer from S3 and S4 sleep modes (no power to wake...
... wake-up the compurer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in the BIOS. KBPWR +5V +5VSB (Default) 12 23 M4A78LT PLUS M4A78LT PLUS Keyboard power setting ASUS M4A78LT PLUS 1-15 This feature requires an ATX power supply that can wake up the computer from S3 and S4 sleep modes (no power to wake...
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... motherboard components. Front panel audio connector (10-1 pin AAFP) This connector is purchased separately. Connect one end of the connector. ASUS M4A78LT PLUS 1-17 CPU and chassis connectors (4-pin CPU_FAN; 3-pin CHA_FAN) Connect the fan cables to the fan connectors on the fan connectors... If you want to connect a high definition front panel audio module to the fan connectors. Only the 4-pin CPU fan supports the ASUS Q-Fan feature. 2. M4A78LT PLUS AAFP SENSE2_RETUR SENSE1_RETUR PRESENCE# GND PORT2 L NC SENSE_SEND PORT2 R NC PORT1 R NC PORT1 L PIN 1 AGND Line out_L NC Line...
... motherboard components. Front panel audio connector (10-1 pin AAFP) This connector is purchased separately. Connect one end of the connector. ASUS M4A78LT PLUS 1-17 CPU and chassis connectors (4-pin CPU_FAN; 3-pin CHA_FAN) Connect the fan cables to the fan connectors on the fan connectors... If you want to connect a high definition front panel audio module to the fan connectors. Only the 4-pin CPU fan supports the ASUS Q-Fan feature. 2. M4A78LT PLUS AAFP SENSE2_RETUR SENSE1_RETUR PRESENCE# GND PORT2 L NC SENSE_SEND PORT2 R NC PORT1 R NC PORT1 L PIN 1 AGND Line out_L NC Line...
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...refer to the Recommended Power Supply Wattage Calculator at http://support.asus. 3. otherwise, the system will not boot. • We recommend that complies with more power-consuming devices. ATX12V EATXPWR +12V DC +12V DC M4A78LT PLUS GND GND +3 Volts +12 Volts +12 Volts +5V Standby... Power OK PIN 1 GND +5 Volts GND +5 Volts GND +3 Volts +3 Volts PIN 1 M4A78LT PLUS ATX power connectors GND +5 Volts +5 Volts +5 Volts -5 Volts GND...
...refer to the Recommended Power Supply Wattage Calculator at http://support.asus. 3. otherwise, the system will not boot. • We recommend that complies with more power-consuming devices. ATX12V EATXPWR +12V DC +12V DC M4A78LT PLUS GND GND +3 Volts +12 Volts +12 Volts +5V Standby... Power OK PIN 1 GND +5 Volts GND +5 Volts GND +3 Volts +3 Volts PIN 1 M4A78LT PLUS ATX power connectors GND +5 Volts +5 Volts +5 Volts -5 Volts GND...
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... RSATA_RXN1 RSATA_RXP1 GND RSATA_TXN1 RSATA_TXP1 GND GND RSATA_RXN2 RSATA_RXP2 GND RSATA_TXN2 RSATA_TXP2 GND M4A78LT PLUS SATA3G_1 SATA3G_2 M4A78LT PLUS SATA connectors • These connectors are set to hear system beeps and warnings. +5V GND GND Speaker Out SPEAKER M4A78LT PLUS PIN 1 M4A78LT PLUS Speaker out connector ASUS M4A78LT PLUS 1-19 The speaker allows you to IDE mode by default. If you...
... RSATA_RXN1 RSATA_RXP1 GND RSATA_TXN1 RSATA_TXP1 GND GND RSATA_RXN2 RSATA_RXP2 GND RSATA_TXN2 RSATA_TXP2 GND M4A78LT PLUS SATA3G_1 SATA3G_2 M4A78LT PLUS SATA connectors • These connectors are set to hear system beeps and warnings. +5V GND GND Speaker Out SPEAKER M4A78LT PLUS PIN 1 M4A78LT PLUS Speaker out connector ASUS M4A78LT PLUS 1-19 The speaker allows you to IDE mode by default. If you...
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... functions. Connect the HDD Activity LED cable to the HDD. • Power/Soft-off the system power. 1-20 Chapter 1: Product introduction 6. Ground Reset +HDLED RESET M4A78LT PLUS System panel connector • System power LED (2-pin PLED) This 2-pin connector is read from or written to this connector. PLED PWRBTN PLED+ PLEDPWR GND...
... functions. Connect the HDD Activity LED cable to the HDD. • Power/Soft-off the system power. 1-20 Chapter 1: Product introduction 6. Ground Reset +HDLED RESET M4A78LT PLUS System panel connector • System power LED (2-pin PLED) This 2-pin connector is read from or written to this connector. PLED PWRBTN PLED+ PLEDPWR GND...