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QE3666
M2N-CM DVI
Quick Start Guide
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First Edition Published February 2008
Copyright © 2008 ASUSTeK COMPUTER INC. All Rights Reserved.
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21.1cm (8.3in)
EATXPWR
DDR2 DIMM_A1 (64 bit,240-pin module)
DDR2 DIMM_B1 (64 bit,240-pin module)
Socket AM2+/AM2
SATA2
SATA4
SATA1
SATA3
USB56
USB78 USB910
F_PANEL
M2N-CM DVI
24.4cm (9.6in
)
CHA_FAN
LPT
USBPW5-10
CLRTC
PS2_USBPW1-4
CHASSIS
SPEAKER
NVIDIA
MCP68S
PCI2
PCI1
PCIEX16
FLOPPY
AAFP
SPDIF_OUT
VT1708B/S
8Mb
BIOS
Super I/O
CR2032 3V
Lithium Cell
CMOS Power
R
CD
SB_PWR
COM1
CPU_FAN
PS/2KBMS
T: Mouse
B: Keyboard
VGA_DVI
USB34
LAN1_USB12
AUDIO
Atheros
F1
ATX12V
PRI_IDE
3
2
2
1
USBPW5-10
(D
e
fa
u
lt
)
+5
V
+5VS
B
3
2
2
1
PS2_USBPW1-4
(Defau
lt
)
+5
V
+5VSB
CLRTC
Normal Clear RTC
(Default)
2 3
1 2
F_PANEL
PLED-
PWR
PLED+
Ground
GNDReset
IDELED+
IDELED-
+HDLED RESET
PLED
PWR BTN
1. Motherboard layout
2. Installing the CPU
Follow these steps to install a CPU.
1. Locate the 940-pin AM2+/AM2 socket on the motherboard.
2. Lift up the socket lever to at least a 90° angle.
The CPU ts only in one correct orientation. DO NOT force the CPU into the
socket to prevent bending the pins and damaging the CPU!
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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 ts in place.
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.
3. System memory
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered ECC / non-ECC
DDR2 DIMMs into the DIMM sockets using the memory congurations in this
section.
Recommended Memory Congurations
Sockets
Mode DIMM_A1 DIMM_B1
Single-Channel
Dual-channel Populated Populated
• 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
conguration. 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,
it is recommended that you obtain memory modules from the same vendor.
• If you install two 2GB memory modules, the system may only recognize less
than 3GB because the address space is reserved for other critical functions.
This limitation appears on Windows® XP 32-bit operation system which does
not support Physical Address Extension (PAE).
• If you install Windows® XP 32-bit operation system, a total memory of less
than 3GB is recommended.
– Populated
Populated –
ASUS M2N-CM DVI 3
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4. BIOS information
The Flash ROM on the motherboard contains the BIOS. You can update the
BIOS information or congure the parameters using the BIOS Setup utility. The
BIOS screens include navigation keys and brief online help to guide you. If you
encounter system problems, or if the system becomes unstable after you changed
settings, load the Setup Defaults. Refer to Chapter 2 of the user guide for detailed
BIOS information. Visit the ASUS website (www.asus.com) for updates.
To enter Setup at start up:
Press <Delete> during the Power-On Self Test (POST). If you do not press
<Delete>, POST continues with its test routines.
To enter Setup after POST:
• Restart the system by pressing <Ctrl> + <Alt> + <Delete>, then press <Delete>
during POST, or
• Press the reset button on the chassis, then press <Delete> during POST, or
• Turn the system off and back on, then press <Delete> during POST
To update the BIOS with AFUDOS:
Boot the system from a oppy disk that contains the latest BIOS le. At the DOS
prompt, type afudos /i<lename.rom> and press Enter. Reboot the system when
the update is complete.
To update the BIOS with ASUS EZ Flash 2:
EZ Flash 2 is a user-friendly BIOS update utility. Simply press the predened
hotkey to launch the utility and update BIOS from a USB ash disk before entering
the OS. Update your BIOS easily without preparing a bootable diskette or using an
OS-based ash utility.
To recover the BIOS with CrashFree BIOS 3:
Boot the system. If the BIOS is corrupted, the CrashFree BIOS 3 auto recovery
tool prompts you to insert a oppy disk, CD or USB ash disk that contains the
original or latest BIOS le. Reboot the system after the BIOS is recovered.
5. Software support CD information
This motherboard supports Windows® 32-bit XP / 32-bit Vista / 64-bit XP /
64-bit Vista operating system (OS). Always install the latest OS version and
corresponding updates so you can maximize the features of your hardware.
The support CD that came with the motherboard contains useful software and
several utility drivers that enhance the motherboard features. To begin using the
support CD, simply insert the CD into your CD-ROM drive. The CD automatically
displays the welcome screen and the installation menus if Autorun is enabled in
your computer. If the welcome screen did not appear automatically, locate and
double-click on the le ASSETUP.EXE from the BIN folder in the support CD to
display the menus.
4 ASUS M2N-CM DVI
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