No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK Computer Inc. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identication or explanation and to the
owners’ benet, without intent to infringe.
Page 3
iii
Contents
Notices .......................................................................................................... v
Safety information ...................................................................................... vi
About this guide ......................................................................................... vi
M2N68-AM SE specications summary .................................................. viii
Chapter 1: Product introduction
1.1 Before you proceed ..................................................................... 1-1
2.7 Tools menu ................................................................................. 2-16
2.8 Exit menu .................................................................................... 2-16
Page 5
v
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with manufacturer’s instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics card is required
to assure compliance with FCC regulations. Changes or modications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.
Page 6
vi
Safety information
Electrical safety
• To prevent electric shock hazard, disconnect the power cable from the electric outlet
before relocating the system.
•
When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
•
Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
•
Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
• If the power supply is broken, do not try to x it by yourself. Contact a qualied service
technician or your retailer.
Operation safety
•
Before installing the motherboard and adding devices on it, carefully read all the manuals
that came with the package.
•
Before using the product, ensure that all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
•
To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets, and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may become wet.
•
Place the product on a at and stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports.
• Chapter 2: BIOS information
This chapter tells how to change system settings through the BIOS setup menus.
Detailed descriptions of the BIOS parameters are also provided.
Page 7
vii
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when trying toInformation to prevent injury to yourself when trying to
complete a task.
CAUTION: Information to prevent damage to the components when trying toInformation to prevent damage to the components when trying to
complete a task.
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.Tips and additional information to help you complete a task.
Where to nd more 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.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
Typography
Bol d te xt Indicates a menu or an item to select.
Italics
Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign means
that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1>+<Key2>+<Key3> If you must press two or more keys simultaneously, the keynames are linked with a plus sign (+).
Example: <Ctrl>+<Alt>+<D>
CommandMeans that you must type the command exactly as shown,Means that you must type the command exactly as shown, then supply the required item or value enclosed in brackets.
Example: At the DOS prompt, type the command line:
afudos /i[lename]
GraphicsIntegrated NVIDIA® GeForce 7 Series Shader model 3.0
Expansion slots1 x PCIe x16 slot
Storage1 x UltraDMA 133/100 connector
AudioALC662 High Denition Audio 6-channel CODEC
USBSupports up to 10 USB 2.0/1.1 ports (6 ports at mid-board,
LANRealtek PHY 10/100 LAN
Athlon™ / Sempron™ processors
AMD Cool ‘n’ Quiet™ Technology
Supports CPU up to 95W
AMD64 architecture enables simultaneous 32-bit and 64-bit
computing
2 x 240-pin DIMM slots support unbuffered non-ECC
DDR2 1066/800/667/533MHz memory modules
Supports up to 4GB system memory
* Due to AM2+ CPU limitation, only one DDR2 1066 is
supported per channel. Refer to www.asus.com for the
AM2+ CPU models.
** Refer to www.asus.com for the latest Memory QVL
(Qualied Vendors List).
*** When you install a total memory of 4GB or more,
Windows® 32-bit operating system may only recognize
less than 3GB. Hence, a total installed memory of less
than 3GB is recommended if you are using a Windows
32-bit operating system.
DirectX 9 graphics processor
Maximum shared memory of 256MB
Supports RGB with max. resolution 1920 x 1440 @ 70MHz*32bpp/75MHz*16bpp
* Due to the chipset limitation, only MPEG 2 and WMV
ofoad support HD format 1920 x 1080p.
** The recommended system conguration when playing
HD DVD and Blu-ray disc: DDR2 800 1GB x 2 /
Athlon 64 x 2 4400+ / Graphic shared memory 256MB /
Purevideo HD support
1 x PCIe x1 slot
1 x PCI slot
2 x Serial ATA 3Gb/s connectors
Supports Jack-detection and Multi-streaming
4 ports at back panel)
(continued on the next page)
Page 9
ix
M2N68-AM SE specications summary
ASUS special featuresASUS Express Gate
ASUS overclocking
features
Back panel I/O ports1 x PS/2 Keyboard port
Internal I/O connectors3 x USB 2.0/1.1 connectors support additional
BIOS8Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0,
Accessories1 x Serial ATA cable
Form FactorMicroATX form factor: 9.6 in x 8.0 in
Support DVDDrivers
ASUS Q-Fan
ASUS CrashFree BIOS3
ASUS EZ Flash2
ASUS MyLogo2
SFS (Stepless Frequency Selection):
- HT tuning from 200MHz to 300MHz at 1MHz increment
- Memory tuning from 533MHz to 1066MHz
- PCIe frequency tuning from 100MHz to 150MHz
at 1MHz increment
Adjustable CPU voltage at 0.05V increment
Overclocking protection:
- ASUS C.P.R. (CPU Parameter Recall)
1 x PS/2 Mouse port
1 x RJ45 port
1 x VGA port
4 x USB 2.0/1.1 ports
6-channel audio I/O ports
1 x COM port
6 USB 2.0/1.1 ports
1 x IDE connector
2 x SATA connectors
1 x system panel connector
1 x CD audio-in connector
1 x Internal speaker connector
1 x Front panel audio connector
1 x CPU can connector
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V power connector
ACPI2.0, SM BIOS 2.5, ASUS EZ Flash2
1 x UltraDMA 133/100/66 cable
1 x IO Shield
User Manual
ASUS Update
ASUS PC Probe II
Anti-Virus software (OEM version)
*Specications are subject to change without notice.
Page 10
Chapter 1
M2N68-AM SE
SB_PWR
ON
Standby Power Powered Off
OFF
M2N68-AM SE Onboard LED
Product introduction
Thank you for buying an ASUS® M2N68-AM SE motherboard!
Before you start installing the motherboard, and hardware devices on it, check the items in
your motherboard package. Refer to page ix for the list of accessories.
If any of the items is damaged or missing, contact your retailer.
1.1 Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due to
static electricity
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, ensure that the ATX power supply is
switched off or the power cord is detached from the power supply. Failure to do so may
cause severe damage to the motherboard, peripherals, or components.
Onboard LED
This motherboard comes with a standby power LED that lights up to indicate that the system
is ON, in sleep mode, or in soft-off mode. This is a reminder that you must shut down
the system and unplug the power cable before removing or plugging in any motherboard
component. The illustration below shows the location of the onboard LED.
Chapter 1: Product introduction1-1
Page 11
1.2 Motherboard overview
M2N68-AM SE
PCIEX16
PCIEX1_1
PCI1
PRI_IDE
USB56USB78 USB910
F_PANEL
AAFP
CD
ATX12V
EATXPWR
CPU_FAN
Lithium Cell
CMOS Power
Super
I/O
ALC
662
RTL
8201CP
KBMS
8Mb
BIOS
SB_PWR
CLRTC
USBPW5-10
USBPW1-4
SPEAKER
20.3cm(8.0in)
24.4cm(9.6in)
NVIDIA
®
MCP68PVNT
DDR2 DIMM_A1 (64bit, 240-pin module)
SOCKET AM2
DDR2 DIMM_B1 (64bit, 240-pin module)
SATA1 SATA2
VGA
AUDIO
COM
LAN1_USB12
USB34
1
2
3
4
5
79101112138
14
15
16
6
1-2ASUS M2N68-AM SE
1.2.1 Motherboard layout
Ensure that you install the motherboard into the chassis in the correct orientation. The edge
with external ports goes to the rear part of the chassis.
Place this side towards
the rear of the chassis.
Place six screws into the holes indicated by circles to secure the motherboard to the
chassis. DO NOT overtighten the screws! Doing so can damage the motherboard.
This motherboard comes with a 940-pin AM2+ / AM2 socket designed for AMD® Phenom™FX
/ Phenom™ / Athlon™ / Sempron™ processors.
The AM2+ / AM2 socket has a different pinout from the 940-pin socket designed for the
AMD Opteron™ processor. Use a CPU that is designed for the AM2+ / AM2 socket.
1.4 System memory
1.4.1 Overview
This motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Modules
(DIMM) sockets. A DDR2 DIMM has the same physical dimensions as a DDR DIMM but
has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched
differently to prevent installation on a DDR DIMM socket. The gure illustrates the location of
the DDR2 DIMM sockets:
ChannelSockets
Channel ADIMM_A1
Channel BDIMM_B1
Page 13
1.4.2 Memory congurations
1-4ASUS M2N68-AM SE
You may install 256MB, 512MB, 1GB, and 2GB unbuffered non-ECC DDR2 DIMMs into the
DIMM sockets.
• 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 the single-channel operation.
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
recommend that you obtain memory modules from the same vendor.
• Due to the memory address limitation on the 32-bit Windows® OS, when you install
4GB or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do either of the
following:
- Install a maximum of 3GB system memory if you are using a 32-bit Windows
OS.
- Use a 64-bit Windows® OS if you want to install 4GB or more memory on the
motherboard.
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
This motherboard supports up to 4GB memory modules on Windows XP Professional x64
and Vista x64 editions. You may install a maximum of 2GB DIMMs on each slot.
M2N68-AM SE Motherboard Qualied Vendors Lists (QVL)
256MB HYHYMP532U64CP6-Y5 AB 5HynixSSHY5PS121621CFP-Y5••
512MB HYHYMP564U64AP8-Y4 AA N/AHynixSSHY5PS12821AFP-Y4••
512MB HYHYMP564U64AP8-Y5 AA N/AHynixSSHY5PS12821AFP-Y5••
512MB HYHYMP564U72AP8-Y4N/AHynixSSHY5PS12821AFP-Y4(ECC)••
512MB HYHYMP564U72AP8-Y5N/AHynixSSHY5PS12821AFP-Y5(ECC)••
1GHYHYMP512U72AP8-Y5N/AHynixDSHY5PS12821AFP-Y5(ECC)••
1GHYHYMP512U64AP8-Y5 AB N/AHynixDSHY5PS12821AFP-Y5••
1GHYHYMP512U64CP8-Y5 AB 5HynixDSHY5PS12521CFP-Y5••
512MB KingmaxKLCC28F-A8EB5N/AElpidaSSE5108AE-6E-E••
• The default DIMM frequency depends on its Serial Presence Detect (SPD), which is the
standard way of accessing information from a memory module. Under the default state,
some memory modules for overclocking may operate at a lower frequency than the
vendor-marked value.
SS: Single-sided / DS: Double-sided
DIMM support:
• A*: Supports one module inserted into either slot as the single-channel memory
conguration.
• B*: Supports one pair of modules inserted into both the yellow slots as one pair of
dual-channel memory conguration.
Visit the ASUS website at www.asus.com for the latest QVL.
Page 16
1.5 Expansion slots
Chapter 1: Product introduction1-7
In the future, you may need to install expansion cards. The following sub-sections describe
the slots and the expansion cards that they support.
Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.
1.5.1 Installing an expansion card
To install an expansion card:
1. Before installing the expansion card, read the documentation that comes with it and
make the necessary hardware settings for the card.
2. Remove the chassis cover (if your motherboard is already installed in a chassis).
3. Remove the bracket opposite the slot that you intend to use.
4. Align the card connector with the slot and press rmly until the card is completely
seated on the slot.
5. Secure the card to the chassis with the screw.
6. Replace the chassis cover.
1.5.2 Conguring an expansion card
After installing the expansion card, congure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.
2. Assign an IRQ to the card.
3. Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments; otherwise, conicts will arise between the two PCI
groups, making the system unstable and the card inoperable.
1.5.3 PCI slot
The PCI slots support cards such as LAN cards, SCSI cards, USB cards, and other cards
that comply with the PCI specications.
1.5.4 PCI Express x1 slot
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.
1.5.5 PCI Express x16 slot
This motherboard supports PCI Express x16 graphics cards that comply with the PCI
Express specications.
Page 17
1.6 Jumpers
M2N68-AM SE
M2N68-AM SE Clear RTC RAM
1 22 3
Normal
(Default)
Clear RTC
CLRTC
M2N68-AM SE
M2N68-AM SE USB Device Wake Up
21
2 3
+5V
(Default)
+5VSB
USBPW5-10
1-8ASUS M2N68-AM SE
1. Clear RTC RAM (3-pin CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can
clear the CMOS memory of date, time, and system setup parameters by erasing
the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in
CMOS, which include system setup information such as system passwords.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3
for about 5-10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter
data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
• If the steps above do not help, remove the onboard battery and move the jumper again
to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature. Shut
down and reboot the system, then the BIOS automatically resets parameter settings to
default values.
2. USB device wake-up (3-pin USBPW5-10)
Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped,
DRAM refreshed, system running in low power mode) using the connected USB
devices. Set to +5VSB to wake up from S3 and S4 sleep modes (no power to CPU,
DRAM in slow refresh, power supply in reduced power mode). The USBPW5-10
jumper is for the internal USB connectors that you can connect to additional USB ports.
Page 18
3. Keyboard/mouse power (3-pin PS2_USBPW1-4)
M2N68-AM SE
M2N68-AM SE Keyboard/mouse power
21
2 3
+5V
(Default)
+5VSB
PS2_USBPW1-4
3 42
57698
1
10
Chapter 1: Product introduction1-9
This jumper allows you to enable or disable the keyboard/mouse and USB port 1-4
wake-up feature. When you set this jumper to pins 2-3 (+5VSB), you can wake up the
computer by pressing a key on the keyboard (the default is the Space Bar), clicking
the mouse, or using a USB device. This feature requires an ATX power supply that can
supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS. The
PS2_USBPW1-4 jumper is for the rear USB ports.
1.7 Connectors
1.7.1 Rear panel ports
1. PS/2 Mouse port. This port is for a PS/2 mouse.
2. LAN (RJ-45) port. This port allows 10/100 PHY connection to a Local Area Network
(LAN) through a network hub.
LAN port LED indications
LED (Orange) LED (green)
StatusDescriptionStatusDescription
OFFNo linkOFFNo link
ORANGE100Mbps connection GREEN10Mbps connection
LED
(Orange)
LAN port
LED
(Green)
Page 19
3. Line In port (light blue). This port connects to the tape, CD, DVD player, or other
SATA2
SATA1
GND
RSATA_TXN1
RSATA_TXP1
GND
RSATA_RXN1
RSATA_RXP1
GND
GND
RSATA_TXN2
RSATA_TXP2
GND
RSATA_RXN2
RSATA_RXP2
GND
M2N68-AM SE
M2N68-AM SE SATA connectors
1-10ASUS M2N68-AM SE
audio sources.
4. Line Out port (lime). This port connects to a headphone or a speaker. In 4-channel
and 6-channel conguration, the function of this port becomes Front Speaker Out.
5. Microphone port (pink). This port connects to a microphone.
Refer to the audio conguration table below for the function of the audio ports in 2, 4, or
6-channel conguration.
Audio 2, 4, 6-channel conguration
PortHeadset 2-channel4-channel6-channel
Light Blue Line InRear Speaker OutRear Speaker Out
LimeLine OutFront Speaker Out Front Speaker Out
PinkMic InMic InBass / Center
6. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0 devices.
7. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0 devices.
8. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other
VGA-compatible devices.
9. COM port. This 9-pin COM1 port is for pointing devices or other serial devices.
10. PS/2 Keyboard port. This port is for a PS/2 keyboard.
1.7.2 Internal connectors
1. Serial ATA connectors (7-pin SATA1, SATA2)
These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/s hard disk
and optical disk drives. The Serial ATA 3Gb/s is backward compatible with Serial ATA
1.5Gb/s specication. The data transfer rate of the Serial ATA 3Gb/s is faster than the
standard parallel ATA with 133MB/s (Ultra DMA133).
Install the Windows® XP Service Pack 1 before using Serial ATA.
Page 20
2. IDE connector (40-1 pin PRI_IDE)
M2N68-AM SE
PRI_IDE
NOTE:Orient the red markings
on the IDE ribbon cable to PIN 1.
PIN1
M2N68-AM SE IDE connector
CD
Left Audio Channel
GND
GND
Right Audio Channel
M2N68-AM SE
M2N68-AM SE Internal audio connecto
r
Chapter 1: Product introduction1-11
The onboard IDE connector is for an Ultra DMA 133/100/66 signal cable. There are
three connectors on each Ultra DMA 133 / 100 / 66 signal cable: blue, black, and gray.
Connect the blue connector to the motherboard’s IDE connector, then select one of the
following modes to congure your devices.
Drive jumper settingMode of device(s)Cable connector
Single deviceCable-Select or Master-Black
Cable-Select
Two devices
MasterMaster
SlaveSlave
Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA cable
connector. This prevents incorrect insertion when you connect the IDE cable.
• If any device jumper is set as “Cable-Select”, ensure that all other device jumpers have
the same setting.
• Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE devices.
MasterBlack
SlaveGray
Black or gray
3. Optical drive audio in connector (4-pin CD)
This connector allows you to receive stereo audio input from sound sources such as a
CD-ROM, TV tuner, or MPEG card.
Page 21
4. USB connectors (10-1 pin USB56, USB78, USB910)
M2N68-AM SE
M2N68-AM SE USB2.0 connectors
PIN 1
USB+5V
USB_P10-
USB_P10+
GND
NC
USB+5V
USB_P9-
USB_P9+
GND
USB910
PIN 1
USB+5V
USB_P8-
USB_P8+
GND
NC
USB+5V
USB_P7-
USB_P7+
GND
USB78
PIN 1
USB+5V
USB_P6-
USB_P6+
GND
NC
USB+5V
USB_P5-
USB_P5+
GND
USB56
CPU_FAN
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
M2N68-AM SE
M2N68-AM SE CPU fan connector
1-12ASUS M2N68-AM SE
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with the USB 2.0 specication that supports up
to 480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
5. CPU fan connector (4-pin CPU_FAN)
The CPU fan connector supports cooling fans of 350mA~740mA (8.88W max.) or a
total of 1A~2.22A (26.64W max.) at +12V. Connect the CPU fan cable to the CPU fan
connector on the motherboard, ensuring that the black wire of each cable matches the
ground pin of the connector.
DO NOT forget to connect the CPU fan cable to the CPU fan connector. Insufcient air ow
inside the system may damage the motherboard components. It is not a jumper! DO NOT
place a jumper cap on the CPU fan connector.
Only the CPU fan supports the ASUS Q-Fan feature.
Page 22
6. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
M2N68-AM SE
M2N68-AM SE ATX power connectors
EATXPWR
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
ATX12V
PIN 1
+12V DC
+12V DC
GND
GND
M2N68-AM SE
M2N68-AM SE Speaker Out Connector
+5V
GND
GND
Speaker Out
SPEAKER
PIN 1
Chapter 1: Product introduction1-13
These connectors are for an ATX power supply. The plugs from the power supply are
designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
•
We recommend that you use an ATX 12V Specication 2.0-compliant power supply unit
(PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin power
plugs.
•
If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin
power plug can provide at least 15A on +12V and that the PSU has a minimum power
rating of 300W. The system may become unstable or may not boot up if the power is
inadequate.
• DO NOT forget to connect the 4-pin ATX +12 V power plug; otherwise, the system will
not boot up.
• We recommend that you use a PSU with higher power output when conguring a
system with more power-consuming devices or when you intend to install additional
devices. The system may become unstable or may not boot up if the power is
inadequate.
• If you are uncertain about the minimum power supply requirement for your system,
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
7. Speaker connector (4- pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
Page 23
8. System panel connector (10-1 pin F_PANEL)
M2N68-AM SE
M2N68-AM SE System panel connector
PIN 1
PWR BTN
PLED+
PLED-
PWR
GND
IDE_LED+
IDE_LED-
Ground
Reset
F_PANEL
PWR LED
HD_LED RESET
M2N68-AM SE
M2N68-AM SE Analog front panel connector
AAFP
PIN 1
GND
PRESENCE#
SENSE1_RETUR
SENSE2_RETUR
PORT1 L
PORT1 R
PORT2 R
SENSE_SEND
PORT1 L
HD-audio-compliant
pin definition
PIN 1
AGNDNCNC
NC
MIC2
MICPWR
Line out_R
NC
Line out_L
Legacy AC’97
compliant definition
1-14ASUS M2N68-AM SE
This connector supports several chassis-mounted functions.
• System power LED (2-pin PWRLED)
This 2-pin connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on the system
power, and blinks when the system is in sleep mode.
• Hard disk drive activity LED (2-pin HDLED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable
to this connector. The IDE LED lights up or ashes when data is read from or written to
the HDD.
• Power/Soft-off button (2-pin PWRBTN)
This 2-pin connector is for the system power button. Pressing the power button turns
the system ON or puts the system in SLEEP or SOFT-OFF mode depending on the
BIOS settings. Pressing the power switch for more than four seconds while the system
is ON turns the system OFF.
• Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.
9. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports
either High Denition Audio or AC`97 audio standard. Connect one end of the front
panel audio I/O module cable to this connector.
If you want to connect a high-denition front panel audio module to this connector, ensure
that the Front Panel Select item in the BIOS is set to [HD Audio]. If you want to connect
an AC97 front panel audio module to this connector, set the item to [AC97]. See page 2-10
for details.
Page 24
1.8 Software support
Chapter 1: Product introduction1-15
1.8.1 Installing an operating system
This motherboard supports Windows® XP/Vista Operating Systems (OS). Always install the
latest OS version and corresponding updates to maximize the features of your hardware.
• Motherboard settings and hardware options vary. Refer to your OS documentation for
detailed information.
• Ensure that you install Windows® XP Service Pack 3 or later versions / Windows® Vista
Service Pack 1 or later versions before installing the drivers for better compatibility and
system stability.
1.8.2 Support DVD information
The Support DVD that comes with the motherboard package contains drivers, software
applications, and utilities that you can install to get all motherboard features.
To run the Support DVD
Place the Support DVD into the optical drive. The DVD automatically displays the Drivers
menu if the Autorun function is enabled on your computer.
The contents of the Support DVD are subject to change at any time without notice. Visit the
ASUS website at www.asus.com for updates.
Click an icon to
display Support DVD/
motherboard information
Click an item to install
If the Autorun function is NOT enabled on your computer, browse the contents of the
Support DVD to locate the le ASSETUP.EXE from the BIN folder. Double-click
ASSETUP.EXE to run the DVD.
Page 25
1.8.3 ASUS Express Gate
1-16ASUS M2N68-AM SE
ASUS Express Gate is an instant-on environment that gives you quick access to the Internet.
Five seconds after bootup, you can instantly surf the Internet, use Skype or other Express
Gate applications.
Installing ASUS Express Gate
• ASUS Express Gate supports SATA HDDs in IDE mode only.
• ASUS Express Gate supports HDDs connected to motherboard chipset-controlled onboard SATA ports only. All onboard extended SATA ports and external SATA ports
are NOT supported. See section 1.2.1 Motherboard layout for the exact location of the
onboard SATA ports.
To install Express Gate on your computer:
1. Place the Support DVD into the optical drive. The Drivers menu appears if Autorun is
enabled on your computer.
2. Click the Utilities tab, then click ASUS Express Gate.
3. Select your preferred language, then click
OK.
4. The InstallShield Wizard for Express
Gate appears. Click Next to continue.
5. Select the target drive where you want to
install Express Gate. If you have multiple
partitions installed on your computer, it is
recommended to install Express Gate in
Drive C. Click Next to continue.
6. Follow the onscreen instructions to
complete the installation.
Page 26
The Splash Screen
Chapter 1: Product introduction1-17
Express Gate’s splash screen appears within
a few seconds after bootup. From here,
immediately start surng the Internet, chat on
Skype, enter the OS or BIOS, or power off your
computer.
If you do not make any selection, Express
Gate automatically closes and boots to your
OS after some time. The timer countdown
is shown inside the Enter OS button. As
you move the mouse or press a key, the
countdown stops and the timer disappears, so
you can take your time to make a selection.
Splash screen hot keys
KeyFunction
<PAUSE/BREAK>Power-off
<ESC>Continue to boot OS
<DEL>Enter BIOS setup
<F8>Enter Boot selection pop-up
The Express Gate Environment
The very rst time you enter the Express
Gate environment, either through launching
the web or Skype from the splash screen,
a rst time wizard appears. The rst time
wizard guides you in conguring the basic
Express Gate settings such as the language,
date and time, and screen resolution.
Express Gate hot keys
KeyFunction
<Alt> + <Tab>Switch between applications
<Ctrl> + <Alt> + <Del>Bring the Power-Off dialog box
Launch or switch between applicationsClick the icons on the LaunchBar located at the bottom
Bring a window to the foregroundClick within the window or click its icons.
Resize a windowDrag any of the window’s four corners.
Move a windowDrag the window’s title bar.
Bring a menu of applicationsRight-click anywhere on your desktop.
The red triangle on a LaunchBar icon indicates that the application is running, which means
that you can switch to this application without delay. If the application stops responding,
right-click its icon to force it to close.
of the screen.
On your computer’s keyboard, press <Alt> + <Tab>.
Using the Conguration Panel
Use the conguration panel to change the Express Gate settings.
Click an icon to open a particular conguration tool. The following tools are available:
• Date and Time: This allows you to set the date, time, and time zone.
• Input Method: This allows you to choose your favorite input method.
• Language and Keyboard: This allows you to choose your language and keyboard
preferences.
• LaunchBar Settings: This allows you to customize your LaunchBar settings.
• Network: This allows you to specify how your computer connects to the Internet.
Enable all the network ports that you may use.
Also specify whether each port uses DHCP (most common) or static IP. For PPPoE
and wireless, set the login credentials such as the username, password, and SSID.
• The number of the LAN ports may differ from motherboards.
• You can connect the LAN cable to any RJ-45 port, and Express Gate automatically uses
the available port.
Page 28
• Environment Settings: This function allows you to clear the Express Gate settings
Chapter 1: Product introduction1-19
and any information saved by the web browser such as bookmarks, cookies, and
history. The user data is restored to the original default congurations.
After you click Restore System, a conrmation dialog box appears. If you click Yes in
the conrmation dialog box, your system immediately restarts. Re-launch the Express
Gate environment to nish clearing the settings. This is useful in the rare case when
settings might become corrupted.
The rst-time Wizard will run again when you enter the Express Gate environment after
clearing its settings.
• Screen Settings: This allows you to choose the screen resolution.
• Volume Control: This allows you to control the volume for your speaker and
microphone.
Using the LaunchBar
Click an icon on the LaunchBar to launch the corresponding application.
Launches the Web Browser for quick access to the Internet.
Launches the Photo Manager album / organizer tool.
Launches the Chat instant messaging tool.
Launches the Skype application which allows you to chat with or call other people
on Skype.
Launches the Conguration Panel which allows you to specify network settings.
If an application stops responding, right-click its icon then select Close to force it to close.
Page 29
The smaller icons on the right side of the LaunchBar are:
1-20ASUS M2N68-AM SE
Launches File Manager which allows you to access les on a USB drive. If a USB device is detected, the icon contains a green arrow.
ASUS Express Gate supports le uploading from SATA HDDs, ODDs, and USB drives. It
supports le downloading to USB drives only.
Congures the network.
Adjusts the volume.
Sets the input language and keyboard shortcuts (Ctrl-Space by default).
Congures the LaunchBar settings such as auto-hide mode and docking position.
Displays the ASUS Utility panel.
Displays your Express Gate version.
Launches the help le.
Launches the Power Off window where you may choose to enter OS, restart the
computer, or power off the computer. This window also appears when you press
Ctrl-Alt-Del on the keyboard.
Power off
Enter OS
Check to save
user prole
Cancel and return to
Express Gate
Restart
Accessing the Internet
If you cannot access the Internet in the Express Gate environment, check the following:
1. Open the Conguration Panel.
Conguration Panel
Page 30
2. Open Network.
Chapter 1: Product introduction1-21
Network
3. Make the proper network congurations.
Each network interface is enabled immediately after you tick the Enable checkbox.
• If you use a network cable connected to a home router that is connected to your DSL/
cable modem, enable all the LAN ports. Express Gate automatically uses the available
port.
• The number of the LAN ports vary with the motherboard.
• If you plug the network cable into a different port while Express Gate is running (e.g.
move the cable from LAN1 to LAN2), press the Refresh button to activate the new
setting.
• If your computer does not automatically get network settings from a DHCP server, click
Setup to congure the static IP settings manually. If your computer automatically gets
network settings from a DHCP server, skip this step.
Page 31
• If you want to connect to a wireless network, click Setup to congure the WiFi options.
1-22ASUS M2N68-AM SE
In the WiFi tab of the Advanced Network Settings box, key in the network name of
your wireless access point in the SSID eld. If Security is enabled on your wireless
access point, select the corresponding security algorithm from the dropdown list such
as WEPAUTO in the Encryption Type eld, and key in the password.
Click OK to enable WiFi and establish the wireless connection.
• If you use a network cable connected directly to your DSL/cable modem, click Setup
for xDSL/cable dial-up which is referred to as PPPoE. Choose whether the DSL/cable
modem is connected to your computer’s LAN port. Key in the username and password
for your account.
Click OK to enable xDSL/cable dial-up and establish the PPPoE connection. When
PPPoE is enabled, the port it uses will automatically be unchecked.
Using the Photo Manager
Photo Manager allows you to view pictures saved on your hard drive or external storage
devices. You can view pictures in thumbnail view, in an enlarged view individually, in a
lename/data list view, or play them in a slideshow with background music and fancy
transition effects. JPEG, GIF, BMP, and PNG formats are supported. Refer to the online Help
for details.
HelpPhoto slideshow
View mode
Shows the
image folders
found on your
hard drive
or external
devices
selection
Shows usercreated image
albums
ASUS Express Gate supports HDDs connected to motherboard chipset-controlled
onboard SATA ports only. All onboard extended SATA ports and external SATA ports are
NOT supported.
Image
control bar
Page 32
Conguring Express Gate in BIOS Setup
Chapter 1: Product introduction1-23
To enter the BIOS Setup program, press <DEL> during POST or click the BIOS Setup button
on the Express Gate’s splash screen. Go to the Tools menu to congure Express Gate.
Main Ai Tweaker Advanced Power Boot Tools Exit
ASUS EZ Flash 2
Express Gate [Enabled]
Enter OS Timer [10 Seconds]
Reset User Data [No]
BIOS SETUP UTILITY
Press ENTER to run
the utility to select
and update BIOS.
This utility doesn't
support :
1.NTFS format
Updating Express Gate
To update Express Gate:
1. Double-click the Express Gate setup le
to start the software update.
2. A software update conrmation dialog
box appears. Click Yes to continue.
3. The InstallShield Wizard for Express Gate appears. Click Next to continue.
4. Follow the onscreen instructions to complete the updating process.
Download the latest Express Gate version from the ASUS website at www.asus.com.
Repairing Express Gate
In case Express Gate does not start normally,
reinstall the software or use the repair utility to
repair Express Gate.
To repair Express Gate:
• Click Start > All Programs > Express
Gate > Express Gate Installer > Repair
this software.
• You may also double-click the Express
Gate setup le, choose Repair, and click
Next to continue.
Page 33
Chapter 2
BIOS information
2.1 Managing and updating your BIOS
Save a copy of the original motherboard BIOS le to a USB ash disk in case you need to
restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update
utility.
2.1.1 ASUS Update utility
The ASUS Update is a utility that allows you to manage, save, and update the motherboard
BIOS in Windows® environment.
• ASUS Update requires an Internet connection either through a network or an Internet
Service Provider (ISP).
• This utility is available in the Support DVD that comes with the motherboard package.
Installing ASUS Update:
1. Place the Support DVD into the optical drive. The Drivers menu appears.
2. Click the Utilities tab, then click Install ASUS Update.
3. Follow the onscreen instructions to complete the installation.
Quit all Windows® applications before you update the BIOS using this utility.
Updating the BIOS:
To update the BIOS:
1. From the Windows® desktop, Click Start > Programs > ASUS > ASUS Update >
ASUS Update to launch the ASUS Update utility.
2. From the dropdown list, select either of the following methods:
Updating from the Internet
a. Select Update BIOS from the Internet, then click Next.
b. Select the ASUS FTP site nearest you to avoid network trafc, or click Auto Select
then click Next.
c. From the FTP site, select the BIOS version you want to download then click Next.
The ASUS Update utility is capable of updating itself through the Internet. Always update
the utility to get all its features.
Chapter 2: BIOS information2-1
Page 34
2-2ASUS M2N68-AM SE
Updating from a BIOS file
a. Select Update BIOS from a le, then click Next.
b. Locate the BIOS le from the Open window, then click Open.
3. Follow the onscreen instructions to complete the updating process.
2.1.2 ASUS EZ Flash 2 utility
The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based
utility.
Download the latest BIOS le from the ASUS website at www.asus.com.
To update the BIOS using EZ Flash 2:
1. Insert the USB ash disk that contains the latest BIOS le to a USB port, then launch
EZ Flash 2 in either of these two ways.
• Press <Alt> + <F2> during POST to display the following:
ASUSTek EZ Flash 2 BIOS ROM Utility V3.06
FLASH TYPE: MXIC 25L8005
Current ROM
BOARD: M2N68-AM SE
VER: 0203
DATE: 10/20/2008
PATH: A:\
A:
Update ROM
BOARD: Unknown
VER: Unknown
DATE: Unknown
Note
[ En te r ] S el ec t o r L o ad [ B] Ba c ku p [ ES C] E xi t
[Tab] Switch [Up/Down/Home/End] Move
• Enter the BIOS setup program. Go to the Tools menu to select EZ Flash 2 then
press <Enter> to enable it.
2. Press <Tab> to locate the correct le. Press <Enter>.
When the correct BIOS le is found, EZ Flash 2 performs the BIOS updating process and
automatically reboots the system when done.
• Only a USB ash disk with FAT 32/16 format and single partition supports the ASUS EZ
Flash 2 utility.
• DO NOT shut down or reset the system while updating the BIOS to prevent system boot
failure!
Page 35
Chapter 2: BIOS information2-3
2.1.3 ASUS CrashFree BIOS 3 utility
The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the
BIOS le when it fails or gets corrupted during the updating process. You can update a
corrupted BIOS le using the motherboard Support DVD or a USB ash disk that contains the
updated BIOS le.
• Prepare the motherboard Support DVD or a USB ash disk containing the updated
motherboard BIOS before using this utility.
• Always connect the SATA cable to the SATA1/2 connector; otherwise, the utility will not
function.
Recovering the BIOS
To recover the BIOS:
1. Turn on the system.
2. Insert the Support DVD or USB ash disk containing the BIOS le to the optical disk
drive or a USB port.
The utility displays the following message and automatically checks the Support DVD
or the USB ash disk for the BIOS le.
Bad BIOS checksum. Starting BIOS recovery...
Checking for CD-ROM...
When the BIOS le is found, the utility reads it and starts erasing the corrupted BIOS
le.
Bad BIOS checksum. Starting BIOS recovery...
Checking for CD-ROM...
CD-ROM found!
Reading le “M2NAMSE.ROM”. Completed.
Start Erasing...
Start Programming...
3. Restart the system after the utility completes the updating process.
• Only a USB ash disk with FAT 32/16 format and single partition supports ASUS
CrashFree BIOS 3. The device size should be smaller than 8GB.
• DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!
The recovered BIOS may not be the latest BIOS version for this motherboard. Download
the latest BIOS le from the ASUS website at www.asus.com.
Page 36
2-4ASUS M2N68-AM SE
2.2 BIOS setup program
Use the BIOS Setup program when you are installing a motherboard, reconguring your
system, or prompted to “Run Setup.” This section explains how to congure your system
using this utility.
If you want to enter Setup after POST, reboot the system by doing any of the following
procedures:
• Restart using the OS standard shut-down procedure.
• Press <Ctrl>+<Alt>+<Del> simultaneously.
• Press the reset button on the system chassis.
• Press the power button to turn the system off then back on.
Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force
reset from a running operating system can cause damage to your data or system. We
recommend that you always shut down the system properly from the operating system.
• The default BIOS settings for this motherboard apply to most conditions to ensure
optimum performance. If the system becomes unstable after changing any BIOS
settings, load the default settings to ensure system compatibility and stability. Select the
Load Setup Defaults item under the Exit menu. See section 2.8 Exit menu.
• The BIOS setup screens in this section are for reference only. They may not exactly
match what you see on your screen.
• Visit the ASUS website at www.asus.com to download the latest BIOS le for this
motherboard.
2.3 Main menu
When you enter the BIOS Setup program, the Main menu screen appears, giving you an
overview of the basic system information.
Main Advanced Power Boot Tools Exit
System Time [19:34:30]
System Date [Wed 08/27/2008]
IDE Conguration
Primary IDE Master :[Not Detected]
Primary IDE Slave :[Not Detected]
SATA1 :[Not Detected]
SATA2 :[Not Detected]
System Information
BIOS SETUP UTILITY
Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a eld.
Use [+] or [-] to
congure system Time.
Select Screen
Select Item
Change Field
+-
Tab Select Field
2.3.1 System Time [xx:xx:xx]
Allows you to set the system time.
2.3.2 System Date [Day xx/xx/xxxx]
Allows you to set the system date.
Page 37
Chapter 2: BIOS information2-5
2.3.3 IDE Conguration
The items in this menu allow you to set or change the congurations for the IDE devices
installed in the system. Select an item then press <Enter> if you want to congure the item.
Onboard IDE Controller [Enabled]
Enables or disables the onboard IDE controller. Conguration options: [Disabled] [Enabled]
Serial ATA Devices [Enabled]
Enables or disables the Serial ATA devices. Conguration options: [Enabled] [Disabled]
SATA Mode Select [SATA Mode]
Selects the SATA mode. Conguration options: [SATA Mode]
2.3.4 Primary IDE Master/Slave
While entering Setup, the BIOS automatically detects the presence of IDE devices. There is
a separate submenu for each IDE device. Select a device item then press <Enter> to display
the IDE device information.
The BIOS automatically detects the values opposite the dimmed items (Device, Vendor,
Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring).
These values are not user-congurable. These items show Not Detected if no IDE device is
installed in the system.
Type [Auto]
Selects the type of IDE drive. Setting to [Auto] allows automatic selection of the appropriate
IDE device type. Select [CDROM] if you are specically conguring a CD-ROM drive. Select
[ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or MO drive.
Conguration options: [Not Installed] [Auto] [CDROM] [ARMD]
LBA/Large Mode [Auto]
Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device
supports this mode, and if the device was not previously formatted with LBA mode disabled.
Conguration options: [Disabled] [Auto]
Block (Multi-Sector Transfer) M [Auto]
Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from
and to the device occurs multiple sectors at a time if the device supports multi-sector transfer
feature. When set to [Disabled], the data transfer from and to the device occurs one sector
at a time. Conguration options: [Disabled] [Auto]
PIO Mode [Auto]
Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode. Conguration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Conguration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer. Conguration options: [Disabled] [Enabled]
Page 38
2-6ASUS M2N68-AM SE
2.3.5 SATA 1-2
While entering Setup, the BIOS automatically detects the presence of SATA devices. There
is a separate submenu for each SATA device. Select a device item then press <Enter> to
display the SATA device information.
The BIOS automatically detects the values opposite the dimmed items (Device, Vendor, Size,
LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring). These
values are not user-congurable. These items show Not Detected if no SATA device is
installed in the system.
LBA/Large Mode [Auto]
Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device
supports this mode, and if the device was not previously formatted with LBA mode disabled.
Conguration options: [Disabled] [Auto]
Block (Multi-Sector Transfer) M [Auto]
Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from
and to the device occurs multiple sectors at a time if the device supports multi-sector transfer
feature. When set to [Disabled], the data transfer from and to the device occurs one sector
at a time. Conguration options: [Disabled] [Auto]
PIO Mode [Auto]
Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode. Conguration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Conguration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer. Conguration options: [Disabled] [Enabled]
2.3.6 System Information
This menu gives you an overview of the general system specications. The BIOS
automatically detects the items in this menu.
AMI BIOS
Displays the auto-detected BIOS information
Processor
Displays the auto-detected CPU specication
System Memory
Displays the auto-detected system memory
Page 39
Chapter 2: BIOS information2-7
2.4 Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Take caution when changing the settings of the Advanced menu items. Incorrect eld
values can cause the system to malfunction.
Main Advanced Power Boot Tools Exit
JumperFree Conguration
CPU Conguration
Chipset
Onboard Devices Conguration
PCIPnP
USB Conguration
BIOS SETUP UTILITY
Adjust System
Frequency etc.
2.4.1 JumperFree Conguration
CPU Overclocking [Auto]
Selects the CPU overclocking options to achieve desired CPU internal frequency.
[Manual] - Allows you to manually set overclocking parameters.
[Auto] - Loads the optimal settings for the system.
[Overclock Prole] - Loads overclocking proles with optimal parameters for stability when
overclocking.
[Standard] - Load the standard settings for the system.
The following item appears only when the CPU Overclocking item is set to [Manual].
CPU Frequency [200.0]
Allows you to set the CPU frequency. Conguration options: [200.0] [201.0] - [299.0]
[300.0]
The following item appears only when the CPU Overclocking item is set to
[Overclock Prole].
Overcloking Options [Auto]
Allows you to select the overclocking prole. Conguration options: [Auto]
[Overclock 3%] [Overclock 5%] [Overclock 7%]
PCIE Overclocking [Auto]
Congures the PCIE overclocking options. Conguration options: [Auto] [Manual]
The following item appears only when the PCIE Overclocking item is set to [Manual].
PCIE Frequency [100]
Allows you to set the PCIE frequency. Conguration options: [100] [101] - [149] [150]
Page 40
2-8ASUS M2N68-AM SE
Processor Frequency Multiplier [Auto]
Allows you to select the processor frequency. Conguration options: [Auto] [x4.0 800MHz]
[x5.0 1000MHz] [x6.0 1200MHz] [x7.0 1400MHz] [x8.0 1600MHz] [x9.0 1800MHz]
Processor Voltage [Standard]
Allows you to set the processor voltage. Conguration options: [Power Saving Mode]
[Standard] [+50mv] [+100mv]
Memory Clock Mode [Auto]
Allows you to select the memory clock mode. Conguration options: [Auto] [Manual]
The following item appears only when the Memory Clock Mode item is set to [Manual].
Allows you to set the memory voltage. Conguration options: [Auto] [2.050V] [2.150V]
[2.250V]
Chipset Voltage [Auto]
Allows you to set the chipset voltage. Conguration options: [Auto] [1.35V]
2.4.2 CPU Conguration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
GART Error Reporting [Disabled]
This option should remain disabled for the normal operation. The driver developer may
enable it for testing purpose. Conguration options: [Disabled] [Enabled]
Microcode Updation [Enabled]
Allows you to enable or disable the microcode updation. Conguration options: [Disabled]
[Enabled]
Secure Virtual Machine Mode [Enabled]
Allows you to enable or disable the AMD Secure Virtual Machine mode. Conguration
options: [Disabled] [Enabled]
Cool ‘n’ Quiet [Disabled]
Allows you to enable or disable the generation of ACPI_PPC, _PSS, and _PCT objects.
Conguration options: [Disabled] [Enabled]
CPU Prefetching [Enabled]
Enables or disables the CPU prefetching. Conguration options: [Enabled] [Disabled]
C1E Conguration [Auto]
Allows you to enable or disable the CPU Enhanced Halt (C1E) function, a CPU power-saving
function in system halt state. When enabled, the CPU core frequency and voltage will be
reduced during the system halt state to decrease power consumption. Conguration options:
[Disabled] [Auto]
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2-10ASUS M2N68-AM SE
2.4.3 Chipset
The Chipset menu allows you to change the advanced chipset settings. Select an item then
press <Enter> to display the sub-menu.
NorthBridge Conguration
Memory Conguration
Bank Interleaving [Disabled]
Allows you to enable the bank memory interleaving.
Conguration options: [Disabled] [Auto]
Channel Interleaving [Disabled]
Allows you to enable the channel memory interleaving.
The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices.
The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA
devices, and setting the memory size block for legacy ISA devices.
Take caution when changing the settings of the PCI PnP menu items. Incorrect eld values
can cause the system to malfunction.
Plug and Play O/S [No]
When set to [No], BIOS congures all the devices in the system. When set to [Yes] and if
you install a Plug and Play operating system, the operating system congures the Plug and
Play devices not required for boot. Conguration options: [No] [Yes]
PCI Latency Timer [64]
Allows you to select the value in units of PCI clocks for the PCI device latency timer register.
When set to [Yes], BIOS assigns an IRQ to PCI VGA card if the card requests for an IRQ.
When set to [No], BIOS does not assign an IRQ to the PCI VGA card even if requested.
Conguration options: [Yes] [No]
Palette Snooping [Disabled]
When set to [Enabled], the palete snooping feature informs the PCI devices that an
ISA graphics device is installed in the system so that the latter can function correctly.
Conguration options: [Disabled] [Enabled]
IRQ-xx assigned to [PCI Device]
When set to [PCI Device], the specic IRQ is free for use of PCI/PnP devices. When set to
[Reserved], the IRQ is reserved for legacy ISA devices.
Conguration options: [PCI Device] [Reserved]
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2-12ASUS M2N68-AM SE
2.4.6 USB Conguration
The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the conguration options.
The Module Version and USB Devices Enabled items show the auto-detected values. If
no USB device is detected, the item shows None.
USB Functions [Enabled]
Enables or disables the USB functions. Conguration options: [Enabled] [Disabled]
USB 2.0 Controller [Enabled]
Enables or disables the USB 2.0 Controller. Conguration options: [Enabled] [Disabled]
Legacy USB Support [Auto]
Allows you to enable or disable support for Legacy USB storage devices, including USB ash
drives and USB hard drives. Setting to Auto allows the system to detect the presence of USB
devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device
is detected, the legacy USB support is disabled. Conguration options: [Disabled] [Enabled]
[Auto]
USB 2.0 Controller Mode [HiSpeed]
Allows you to congure the USB 2.0 controller in HiSpeed (480 Mbps) or Full Speed
(12 Mbps). Conguration options: [FullSpeed] [HiSpeed]
2.5 Power menu
The Power menu items allow you to change the settings for the Advanced Conguration and
Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then
press <Enter> to display the conguration options.
Suspend Mode [Auto]
ACPI 2.0 Support [Disabled]
ACPI APIC Support [Enabled]
APM Conguration
Hardware Monitor
Select the ACPI state
used for System
Suspend.
2.5.1 Suspend Mode [Auto]
Allows you to select the Advanced Conguration and Power Interface (ACPI) state to be
used for system suspend. Conguration options: [S1 (POS) Only] [S3 Only] [Auto]
[S1(POS) Only] - Enables the system to enter the ACPI S1 (Power on Suspend) sleep
[S3 Only] - Enables the system to enter the ACPI S3 (Suspend to RAM) sleep state
[Auto] - Detected by OS.
state. In S1 sleep state, the system appears suspended and stays in a
low power mode. The system can be resumed at any time.
(default). In S3 sleep state, the system appears to be off and consumes less
power than in the S1 state. When signaled by a wake-up device or event, the
system resumes to its working state exactly where it was left off.
Page 45
Chapter 2: BIOS information2-13
2.5.2 ACPI Version Features [Disabled]
Allows you to add additional tables as per Advanced Conguration and Power Interface
(ACPI) 2.0 specications. Conguration options: [Disabled] [Enabled]
2.5.3 ACPI APIC Support [Enabled]
Allows you to enable or disable the Advanced Conguration and Power Interface (ACPI)
support in the Application-Specic Integrated Circuit (ASIC). When set to Enabled, the ACPI
APIC table pointer is included in the RSDT pointer list. Conguration options: [Disabled]
[Enabled]
2.5.4 APM Conguration
Restore on AC Power Loss [Power Off]
When set to Power Off, the system goes into off state after an AC power loss. When set to
Power On, the system goes on after an AC power loss.
Conguration options: [Power On] [Power Off]
Power On By PCI/PCIE Device [Disabled]
When set to [Enabled], this parameter allows you to turn on the system through a PCI/PCIE
card. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.
Conguration options: [Disabled] [Enabled]
Power On By Ring [Disabled]
Enable or disable RI to generate a wake event. Conguration options: [Disabled] [Enabled]
Power On By PS/2 KB/MS [Disabled]
Enable or disable PS/2 Keyboard/Mouse to generate a wake event.
Conguration options: [Disabled] [Enabled]
Power On By RTC Alarm [Disabled]
Allows you to enable or disable RTC to generate a wake event. When this item is set to
Enabled, the items RTC Alarm Date, RTC Alarm Hour, RTC Alarm Minute, and RTC Alarm
Second appear with set values. Conguration options: [Disabled] [Enabled]
2.5.5 Hardware Monitor
CPU Temperature [xxxºC/xxxºF]
MB Temperature [xxxºC/xxxºF]
The onboard hardware monitor automatically detects and displays the motherboard and CPU
temperatures. Select Ignored if you do not wish to display the detected temperatures.
CPU Fan Speed [xxxxRPM] or [Ignored]
The onboard hardware monitor automatically detects and displays the CPU fan speed in
rotations per minute (RPM). If the fan is not connected to the motherboard, the eld shows
N/A. Select Ignored if you do not want the detected speed to be displayed.
VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output through the onboard
voltage regulators.
Smart Q-Fan Function [Disabled]
Allows you to enable or disable the ASUS Q-Fan feature that smartly adjusts the CPU fan
speeds for more efcient system operation. Conguration options: [Disabled] [Enabled]
Page 46
2-14ASUS M2N68-AM SE
2.6 Boot menu
The Boot menu items allow you to change the system boot options. Select an item then
press <Enter> to display the sub-menu.
Main Advanced Power Boot Tools Exit
Boot Settings
Boot Device Priority
Boot Settings Conguration
Security
BIOS SETUP UTILITY
Species the Boot
Device Priority
sequence.
A virtual oppy disk
drive (Floppy Drive B:)
may appear when you set
the CD-ROM drive as the
rst boot device.
2.6.1 Boot Device Priority
1st ~ xxth Boot Device
These items specify the boot device priority sequence from the available devices. The
number of device items that appears on the screen depends on the number of devices
installed in the system. Conguration options: [Removable Device] [Hard Drive]
[ATAPI CD-ROM ] [Disabled]
2.6.2 Boot Settings Conguration
Quick Boot [Enabled]
Enabling this item allows the BIOS to skip some power on self tests (POST) while booting to
decrease the time needed to boot the system. When set to [Disabled], BIOS performs all the
POST items. Conguration options: [Disabled] [Enabled]
Full Screen Logo [Enabled]
This allows you to enable or disable the full screen logo display feature. Conguration
options: [Disabled] [Enabled]
Set this item to [Enabled] to use the ASUS MyLogo 2™ feature.
AddOn ROM Display Mode [Force BIOS]
Sets the display mode for option ROM. Conguration options: [Force BIOS] [Keep Current]
Bootup Num-Lock [On]
Allows you to select the power-on state for the NumLock. Conguration options: [Off] [On]
PS/2 Mouse Support [Auto]
Allows you to enable or disable support for PS/2 mouse. Conguration options: [Disabled]
[Enabled] [Auto]
Wait for ‘F1’ If Error [Enabled]
When set to Enabled, the system waits for the F1 key to be pressed when error occurs.
Conguration options: [Disabled] [Enabled]
Page 47
Chapter 2: BIOS information2-15
Hit ‘DEL’ Message Display [Enabled]
When set to Enabled, the system displays the message Press DEL to run Setup during
POST. Conguration options: [Disabled] [Enabled]
Interrupt 19 Capture [Disabled]
When set to [Enabled], this function allows the option ROMs to trap Interrupt 19.
Conguration options: [Disabled] [Enabled]
2.6.3 Security
The Security menu items allow you to change the system security settings. Select an item
then press <Enter> to display the conguration options.
Change Supervisor Password
Select this item to set or change the supervisor password. The Supervisor Password item
on top of the screen shows the default Not Installed. After you set a password, this item
shows Installed.
To set a Supervisor Password:
1. Select the Change Supervisor Password item then press <Enter>.
2. From the password box, type a password composed of at least six letters and/or
numbers, then press <Enter>.
3. Conrm the password when prompted.
The message Password Installed appears after you successfully set your password.
To change the supervisor password, follow the same steps in setting a supervisor password.
To clear the supervisor password, select the Change Supervisor Password then press
<Enter> twice. The message Password uninstalled appears.
If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock
(RTC) RAM. See section 1.6 Jumpers for information on how to erase the RTC RAM.
After you have set a supervisor password, the other items appear to allow you to change
other security settings.
User Access Level [Full Access]
This item allows you to select the access restriction to the Setup items.
[No Access] - prevents user access to the Setup utility.
[View Only] - allows access but does not allow change to any eld.
[Limited] - allows changes only to selected elds, such as Date and Time.
[Full Access] - allows viewing and changing all the elds in the Setup utility.
Change User Password
Select this item to set or change the user password. The User Password item on top of the
screen shows the default Not Installed. After you set a password, this item shows Installed.
Page 48
To set a User Password:
1. Select the Change User Password item.
2. From the password box, type a password composed of at least six letters and/or
numbers, then press <Enter>.
3. Conrm the password when prompted.
The message Password Installed appears after you set your password successfully.
To change the user password, follow the same steps in setting a user password.
Clear User Password
Select this item to clear the user password.
Password Check [Setup]
When set to [Setup], BIOS checks for user password when accessing the Setup utility. When
set to [Always], BIOS checks for user password both when accessing Setup and booting the
system. Conguration options: [Setup] [Always]
2.7 Tools menu
Main Advanced Power Boot Tools Exit
ASUS EZ Flash 2
BIOS SETUP UTILITY
Press ENTER to run
the utility to select
and update BIOS.
This utility doesn't
support :
1.NTFS format
ASUS EZ Flash 2
Allows you to run ASUS EZ Flash 2. When you press <OK>, a conrmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <OK> to
conrm your choice.
2.8 Exit menu
The Exit menu items allow you to load the optimal or failsafe default values for the BIOS
items, and save or discard your changes to the BIOS items.
Exit Options
Exit & Save Changes
Exit & Discard Changes
Discard Changes
Load Setup Defaults
Pressing <Esc> does not immediately exit this menu. Select one of the options from this
menu or <F10> from the legend bar to exit.
Exit system setup
after saving the
changes.
F10 key can be
used for this
operation.
2-16ASUS M2N68-AM SE
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