Asus M4A77T Specifications

MotherboardM4A77T

xM4A77T specications summary* Specications are subject to change without notice.ASUS exclusive overclocking featuresIntelligent overclocking tools:

1.2 Package contentsCheck your motherboard package for the following items.Motherboard ASUS M4A77T motherboardCables 2 x Serial ATA cables 1 x Ul

AMD® 770 ChipsetThe AMD® 770 Chipset is designed to support up to 5200MT/s HyperTransport™ 3.0 (HT 3.0) interface speed and PCI Express 2.0 x16 graphi

MemOK!Memory compatibility is among the top concerns during computer upgrades. Worry no more. MemOK! is the fastest memory booting solution today. Thi

1.4 Before you proceedTake note of the following precautions before you install motherboard components or change any motherboard settings.• Unplug t

1.5 Motherboard overview1.5.1 Placement directionWhen installing the motherboard, ensure that you place it into the chassis in the correct orientati

1.5.3 Motherboard layout1.5.4 Layout contentsConnectors/Jumpers/Slots/LED Page Connectors/Jumpers/Slots/LED Page1. CPU and chassis fan connectors

1.6 Central Processing Unit (CPU)This motherboard comes with an AM3 socket designed for AMD® Phenom™ II / Athlon™ II / Sempron™ 100 processors.1.6.1

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

1.6.2 Installing the heatsink and fanEnsure that you use only AMD-certied heatsink and fan assembly.To install the CPU heatsink and fan:1. Place th

iiE5248First Edition V1 December 2009Copyright © 2009 ASUSTeK Computer Inc. All Rights Reserved.No part of this manual, including the products and sof

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.Ensure

1.7.2 Memory congurationsYou may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC and non-ECC DDR3 DIMMs into the DIMM sockets.• You may install var

DDR3-1333MHz capabilityDDR3-1600(O.C.)MHz capabilityWe recommend that you install the DDR3 1600+ memory modules on the blue slots for better overclock

DDR3-1333MHz capabilityG.SKILL F3-10600CL9D-2GBNQ 1024MB DS G.SKILL Heat-Sink Package N/A • • •G.SKILL F3-10666CL9D-4GBPK 2048MB DS G.SKILL Heat-Sink

SS: Single-sided / DS: Double-sided DIMM support: • A*: Supports one module inserted into any slot as single-channel memory conguration. • B*: Supp

1.7.3 Installing a DIMMUnplug the power supply before adding or removing DIMMs or other system components. Failure to do so can cause severe damage t

1.8 Expansion slotsIn the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that

1.9 Jumpers1. 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, ti

• The DRAM_LED also lights when the DIMM is not properly installed. Turn off the system and reinstall the DIMM before using the MemOK! function.• Pr

1.11 Connectors1.11.1 Rear panel ports1. PS/2 Keyboard/Mouse Combo port (purple). This port is for a PS/2 keyboard or PS/2 mouse.2. Parallel port.

iiiContentsNotices ... viSafety information ...

7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0 devices.8. USB 2.0 ports 3 and 4. These two 4-pin Univer

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 

3. IDE connector (40-1 pin PRI_IDE)The onboard IDE connector is for Ultra DMA 133/100/66 signal cable. There are three connectors on each Ultra DMA 1

4. Serial ATA connectors (7-pin SATA1~6)These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/s hard disk and optical disk drives.

5. System panel connector (20-8 pin PANEL)This connector supports several chassis-mounted functions.• System power LED (2-pin PLED)This 2-pin connec

6. Digital audio connector (4-1 pin SPDIF_OUT)This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.Ensure that the audio

8. USB connectors (10-1 pin USB78, USB910, USB1112)These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, t

1.12 Software support1.12.1 Installing an operating systemThis motherboard supports Windows® XP / Vista / 7 Operating Systems (OS). Always install t

Chapter 1: Product introduction1-28

ASUS M4A77T 2-1 Chapter 2 BIOS information2.1 Managing and updating your BIOSSave a copy of the original motherboard BIOS le to a USB ash disk i

ivContents1.12 Software support ... 1-271.12.1 Installing an operating system .

2-2 Chapter 2: BIOS informationUpdating from a BIOS file a. Select Update BIOS from a le, then click Next. b. Locate the BIOS le from the Open w

ASUS M4A77T 2-3• This function supports USB ash disks with FAT 32/16 format and single partition only.• DO NOT shut down or reset the system while

2-4 Chapter 2: BIOS information2.2 BIOS setup programUse the BIOS Setup program to update the BIOS or congure its parameters. The BIOS screens inclu

ASUS M4A77T 2-52.2.1 BIOS menu screen2.2.2 Menu barThe menu bar on top of the screen has the following main items:Main For changing the basic

2-6 Chapter 2: BIOS information2.2.4 Menu itemsThe highlighted item on the menu bar displays the specic items for that menu. For example, selecting

ASUS M4A77T 2-72.3 Main menuWhen you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic system informat

2-8 Chapter 2: BIOS informationLBA/Large Mode [Auto]Enables or disables the LBA mode. Setting this item to [Auto] enables the LBA mode if the device s

ASUS M4A77T 2-92.4 Advanced menuThe Advanced menu items allow you to change the settings for the CPU and other system devices.Take caution when chan

2-10 Chapter 2: BIOS informationThe following items only appear when you set Ai Overclock Tuner to [Manual].Ai Overclock Tuner [Auto]Selects the CPU o

ASUS M4A77T 2-11DRAM Command Rate [Auto]Conguration options: [Auto] [1T] [2T]TCL [Auto]Conguration options: [Auto] [4 CLK] ~ [12 CLK]TRCD [Auto]Con

vContents2.5.4 APM Conguration ... 2-162.5.5 HW Monitor Conguration ...

2-12 Chapter 2: BIOS informationTWTR [Auto]Conguration options: [Auto] [4 CLK] ~ [7 CLK]TWRWR [Auto]Conguration options: [Auto] [3 CLK] ~ [10 CLK]TR

ASUS M4A77T 2-132.4.3 ChipsetNorthBridge CongurationDRAM Controller CongurationBank Interleaving [Auto]Allows you to enable the bank memory interl

2-14 Chapter 2: BIOS information2.4.4 Onboard Devices CongurationSerial Port1 Address [3F8/IRQ4]Selects the Serial Port1 base address. Conguration

ASUS M4A77T 2-15The Module Version and USB Devices Enabled items show the auto-detected values. If no USB device is detected, the item shows None.USB

2-16 Chapter 2: BIOS information Select Screen Select Item+- Change OptionF1 General HelpF10 Save and ExitESC Exitv02.61 (C)Copyright 198

ASUS M4A77T 2-17Power on By PS/2 Keyboard [Disabled]Enables or disables PS/2 Keyboard to generate a wake event. Conguration options: [Disabled] [Sp

2-18 Chapter 2: BIOS information2.6 Boot menuThe Boot menu items allow you to change the system boot options. Select an item then press <Enter>

ASUS M4A77T 2-19Bootup Num-Lock [On]Selects the power-on state for the NumLock. Conguration options: [Off] [On]Wait for ‘F1’ If Error [Enabled]When

2-20 Chapter 2: BIOS informationChange User PasswordSelect this item to set or change the user password. The User Password item on top of the screen s

ASUS M4A77T 2-212.7.2 Express Gate [Auto]Enables or disables the ASUS Express Gate feature. ASUS Express Gate is a unique instant-on environment th

viNoticesFederal Communications Commission StatementThis device complies with Part 15 of the FCC Rules. Operation is subject to the following two cond

2-22 Chapter 2: BIOS informationExit & Save ChangesOnce you are nished making your selections, choose this option from the Exit menu to ensure th

viiSafety informationElectrical safety• To prevent electric shock hazard, disconnect the power cable from the electric outlet before relocating the s

viiiConventions used in this guideTo ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

ixM4A77T specications summary(continued on the next page)CPU AMD® Socket AM3 for AMD® Phenom™ II / Athlon™ II / Sempron™ 100 series processors Sup