Asus M4A78-EM 1394 Specifications

MotherboardM4A78-EM

xM4A78-EM specications summaryStorage / RAID AMD SB700 southbridge: - 1 x UltraDMA 133/100/66 connector - 5 x Serial ATA 3Gb/s connectors suppo

xi*Specications are subject to change without notice. M4A78-EM specications summaryInternal I/O connectors 3 x USB 2.0/1.1 connectors support addit

xii

1.2 Package contentsCheck your motherboard package for the following items.Motherboard ASUS M4A78-EM motherboardCables 1 x Serial ATA cable 1 x U

AMD® Socket AM2+/AM2 Phenom™ x4 / Phenom™ x3 / Athlon™ x2 / Athlon™ / Sempron™ CPU supportThis motherboard supports AMD® Socket AM2+ multi-c

64-bit CPU support64-bit computing, the next generation technology that replaces the current 32-bit architecture, delivers advanced system performance

ASUS EZ Flash 2ASUS EZ Flash 2 allows you to update the BIOS from a USB ash disk before entering the OS.ASUS Q-FanASUS Q-Fan technology intelligently

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, power, and chassis fan conn

iiCopyright © 2009 ASUSTeK Computer Inc. All Rights Reserved.No part of this manual, including the products and software described in it, may be repro

1.6 Central Processing Unit (CPU)This motherboard comes with an AM2+ / AM2 socket designed for AMD® Phenom™ x4 / Phenom™ x3 / Athlon™ x2 / Athlon™ /

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

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 DDR2 DIMMs into the DIMM sockets.• You may install var

DDR2-800MHz capabilitySize Vendor Part No.SS/DSCL Chip No.Chip BrandDIMM supportA* B* C*1G Kingston KHX6400D2LL/1G DS N/A Heat-Sink Package Kingston

1G Transcend TS128MLQ64V8U SS 5 E1108ACBG-8E-E Elpida · · ·2G Transcend JM800QLU-2G DS 5 TQ243PCF8 Transcend · · ·2G Transcend TS256MLQ64V8U DS 5 E110

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

iiiContentsNotices ... viSafety information ...

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

1.10 Connectors1.10.1 Rear panel ports1. PS/2 Keyboard/Mouse Combo port (purple). This port is for a PS/2 keyboard or mouse.2. Optical S/PDIF_OUT

12. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0 devices.13. eSATA port. This port connects to an extern

1.10.2 Internal connectors1. Chassis intrusion connector (4-1 pin CHASSIS)This connector is for a chassis-mounted intrusion detection sensor or swit

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

• For detailed instructions on RAID congurations, refer to the RAID manual in the Support DVD.• If you intend to create a Serial ATA RAID set using

7. System panel connector (20-8 pin F_PANEL)This connector supports several chassis-mounted functions.• System power LED This 2-pin connector is for

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

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

ivContents1.11 Software support ... 1-291.11.1 Installing an operating system .

12. Power, CPU, and chassis fan connectors (3-pin PWR_FAN, 4-pin CPU_FAN, 3-pin CHA_FAN)The fan connectors support cooling fans of 350mA~740mA (8.88

1.11 Software support1.11.1 Installing an operating systemThis motherboard supports Windows® XP/Vista Operating Systems (OS). Always install the lat

Chapter 1: Product introduction1-30

ASUS M4A78-EM 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

2-2 Chapter 2: BIOS informationUpdating the BIOSTo update the BIOS:1. From the Windows® desktop, click Start > Programs > ASUS > ASUS Update

ASUS M4A78-EM 2-3To update the BIOS using EZ Flash 2:1. Insert the USB ash disk that contains the latest BIOS le to the USB port, then launch EZ F

2-4 Chapter 2: BIOS information2.1.3 ASUS CrashFree BIOS 3 utilityThe ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the B

ASUS M4A78-EM 2-52.2 BIOS setup programThis motherboard supports a programmable Serial Peripheral Interface (SPI) chip that you can update using the

2-6 Chapter 2: BIOS information2.2.1 BIOS menu screen2.2.2 Menu barThe menu bar on top of the screen has the following main items:Main For chan

ASUS M4A78-EM 2-72.2.4 Menu itemsThe highlighted item on the menu bar displays the specic items for that menu. For example, selecting Main shows th

vContents2.5 Power menu ... 2-152.5.1 Suspend Mode ...

2-8 Chapter 2: BIOS information2.3 Main menuWhen you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic

ASUS M4A78-EM 2-9LBA/Large Mode [Auto]Enables or disables the LBA mode. Setting this item to [Auto] enables the LBA mode if the device supports this

2-10 Chapter 2: BIOS information2.4.1 JumperFree CongurationCPU Overclocking [Auto]Allows selection of CPU overclocking options to achieve desired C

ASUS M4A78-EM 2-11Hyper Transport Width [Auto]Allows you to set the HyperTransport link width. Conguration options: [Auto] [4 Bit] [8 Bit] [16 Bit]

2-12 Chapter 2: BIOS informationECC CongurationECC Mode [Disabled]Allows you to set the ECC mode. Conguration options: [Disabled] [Basic] [Good] [Su

ASUS M4A78-EM 2-132.4.4 Onboard Device CongurationSerial Port1 Address [3F8/IRQ4]Allows you to select the Serial Port1 base address. Conguration

2-14 Chapter 2: BIOS information2.4.6 USB CongurationThe items in this menu allows you to change the USB-related features. Select an item then press

ASUS M4A78-EM 2-152.5 Power menuThe Power menu items allow you to change the settings for the Advanced Conguration and Power Interface (ACPI) and t

2-16 Chapter 2: BIOS information2.5.5 HW Monitor CongurationCPU Temperature [xxxºC/xxxºF] or [Ignored] MB Temperature [xxxºC/xxxºF] or [Ignored]The

ASUS M4A78-EM 2-172.6 Boot menuThe Boot menu items allow you to change the system boot options. Select an item then press <Enter> to display t

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

2-18 Chapter 2: BIOS informationAddOn ROM Display Mode [Force BIOS]Sets the display mode for option ROM. Conguration options: [Force BIOS] [Keep Curr

ASUS M4A78-EM 2-19Change User PasswordSelect this item to set or change the user password. The User Password item on top of the screen shows the defa

2-20 Chapter 2: BIOS information2.7.2 Express Gate [Auto]Allows you to enable or disable the ASUS Express Gate feature. ASUS Express Gate is a unique

ASUS M4A78-EM 2-21Exit & Discard ChangesSelect this option only if you do not want to save the changes that you made to the Setup program. If you

2-22 Chapter 2: BIOS information

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

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

ixM4A78-EM specications summary(continued on the next page)CPU AMD® Socket AM2+ / AM2 for AMD® Phenom™ x4 / Phenom™ x3 / Athlon™ x2 / Athlon™ / Sem