Asus M4N68T-M Specifications Page 1

MotherboardM4N68T-M

xM4N68T-M specications summaryInternal I/O connectors 3 x USB 2.0/1.1 connectors support additional 6 USB 2.0/1.1 ports 4 x SATA connectors 1 x CPU

1.2 Package contentsCheck your motherboard package for the following items.Motherboard ASUS M4N68T-M motherboardCables 2 x Serial ATA cables 1 x

AMD® Cool ‘n’ Quiet TechnologyThis motherboard supports the AMD® Cool ‘n’ Quiet technology which monitors system operation and automatically adjusts C

1.3.2 Innovative ASUS featuresASUS Express Gate ASUS Express Gate is an ASUS exclusive OS that provides you with quick access to the Internet and key

ASUS Anti-Surge ProtectionThis special design prevents expensive devices and the motherboard from damage caused by power surges from switching power s

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

M4N68T-M1.5 Motherboard overview1.5.1 Placement directionWhen installing the motherboard, ensure that you place it into the chassis in the correct o

1.5.3 Motherboard layout1.5.4 Layout contentsM4N68T-MPCIEX16PCIEX1_1PCI1PCI2PRI_IDEUSB910USB78USB56AAFPSPDIF_OUTSPEAKERATX12VEATXPWRCPU_FANLithium C

1.6 Central Processing Unit (CPU)This motherboard supports AMD® Phenom™ II / Athlon™ II / Sempron™ 100 series processors.1.6.1 Installing the CPUTo

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

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

1.6.2 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 DDR3 DIMMs into the DIMM sockets.• You may install var

DDR3-1600(O.C.) MHz capability(continued on the next page)DDR3-1333 MHz capabilityVendor Part No. SizeSS/DSBrand Chip NO.Timing DIMM (BIOS)VoltageDIMM

DDR3-1333MHz capabilityVendor Part No. SizeSS/DSBrand Chip NO.Timing DIMM (BIOS)VoltageDIMM SupportA* B*G.SKILL F3-10600CL8D-2GBHK 1024MB SS G.SKILL H

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

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

2. 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, sy

iiiContentsNotices ... viSafety information ...

1.10 Connectors1.10.1 Rear panel ports1. PS/2 Mouse port (green). This port is for a PS/2 mouse.2. Parallel port. This 25-pin port connects a para

7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports connect to USB 2.0 devices.8. USB 2.0 ports 3 and 4. These two 4-pin Univ

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 signal cable. There are three connectors on each Ultra DMA 133/

4. Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4)These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/s hard disk and o

6. System panel connector (10-1 pin F_PANEL)This connector supports several chassis-mounted functions.M4N68T-MM4N68T-M System panel connectorPIN 1PWR

7. 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, the

8. 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

1.11 Software support1.11.1 Installing an operating systemThis motherboard supports Windows® XP/Vista/7 Operating Systems (OS). Always install the l

ASUS M4N68T-M 2-1Chapter 2BIOS information2.1 Managing and updating your BIOSSave a copy of the original motherboard BIOS le to a USB ash disk in

ivContents1.11 Software support ... 1-281.11.1 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 M4N68T-M 2-32.1.3 ASUS CrashFree BIOS utilityThe ASUS CrashFree BIOS is an auto recovery tool that allows you to restore the BIOS le when it f

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 M4N68T-M 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 basi

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 M4N68T-M 2-72.3 Main menuWhen you enter the BIOS Setup program, the Main menu screen appears, giving you an overview of the basic system inform

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 M4N68T-M 2-92.4.1 JumperFree Conguration2.4 Advanced menuThe Advanced menu items allow you to change the settings for the CPU and other syste

2-10 Chapter 2: BIOS informationProcessor Frequency Multiplier [Auto]Sets the processor frequency multiplier. Conguration options: [Auto] [Min.  x4.

ASUS M4N68T-M 2-11VDDNB Over Voltage [Auto]Sets the VDDNB over voltage. The valid value ranges vary depending on your CPU model. Use <+> / <

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

2-12 Chapter 2: BIOS information2.4.2 CPU CongurationThe items in this menu show the CPU-related information that the BIOS automatically detects.GAR

ASUS M4N68T-M 2-13ECC CongurationECC Mode [Disabled]Allows you to set the ECC mode. Conguration options: [Disabled] [Basic] [Good] [Super] [Max] [U

2-14 Chapter 2: BIOS information2.4.4 Onboard Device CongurationSerial Port1 Address [3F8/IRQ4]Allows you to select the Serial Port1 base address.

ASUS M4N68T-M 2-152.4.6 USB CongurationThe items in this menu allows you to change the USB-related features. Select an item then press <Enter>

2-16 Chapter 2: BIOS information2.5 Power menuThe Power menu items allow you to change the settings for the Advanced Conguration and Power Interface

ASUS M4N68T-M 2-172.5.5 HW Monitor CongurationCPU Temperature [xxxºC/xxxºF] or [Ignored] MB Temperature [xxxºC/xxxºF] or [Ignored]The onboard hardw

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 M4N68T-M 2-19AddOn ROM Display Mode [Force BIOS]Sets the display mode for option ROM. Conguration options: [Force BIOS] [Keep Current]Bootup Nu

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 M4N68T-M 2-212.7 Tools menuThe Tools menu items allow you to congure options for special functions. Select an item then press <Enter> to

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 information2.7.4 AI NET 2Check Realtek Phy LAN cable [Disabled]Enables or disables checking of the Realtek LAN cable during the

ASUS M4N68T-M 2-23Exit & Discard ChangesSelect this option only if you do not want to save the changes that you made to the Setup program. If you

2-24 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.

ixM4N68T-M specications summary(continued on the next page)CPU AMD® Socket AM3 for AMD® Phenom™ II / Athlon™ II / Sempron™ 100 series processors A