Asus M2N68 AM SE2 User Manual

M2N68-AM SE2  
Contents  
iii  
Contents  
iv  
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 modifications 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.  
v
 
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 fix it by yourself. Contact a qualified 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 flat and stable surface.  
If you encounter technical problems with the product, contact a qualified service  
technician or your retailer.  
About this guide  
This user guide contains the information you need when installing and configuring 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.  
vi  
 
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 to  
:
complete a task.  
CAUTION: Information 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.  
Where to find 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 flyers,  
that may have been added by your dealer. These documents are not part of the  
standard package.  
Typography  
Bold text  
Italics  
Indicates a menu or an item to select.  
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 key  
names are linked with a plus sign (+).  
Example: <Ctrl>+<Alt>+<D>  
Command  
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[filename]  
afudos /iM2NAMSE2.ROM  
vii  
M2N68-AM SE2 specifications summary  
CPU  
AMD® Socket AM2+ / AM2 for AMD Phenom™FX / Phenom /  
Athlon™ / Sempron™ processors  
AMD Cool ‘n’ Quiet™ Technology  
AMD64 architecture enables simultaneous 32-bit and 64-bit  
computing  
Chipset  
NVIDIA® GeForce 7025/nForce 630a (MCP68 SE)  
System bus  
Memory  
2000 / 1600MT/s  
Dual-channel memory architecture  
2 x 240-pin DIMM slots support unbuffered ECC and  
non-ECC DDR2 1066/800/667MHz memory modules  
Supports up to 4GB system memory  
* DDR2 1066 is supported by AM2+ CPU only. Refer to  
www.asus.com for the AM2+ CPU models.  
(Qualified 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.  
Graphics  
Integrated programmable Shader model 3.0 DirectX 9  
graphics processor  
Maximum shared memory of 256MB  
Supports RGB with max. resolution 1920 x 1440 @  
75MHz*32bpp  
Expansion slots  
Storage  
1 x PCIe x16 slot  
1 x PCIe x1 slot  
1 x PCI slot  
1 x UltraDMA 133/100/66 connector  
2 x Serial ATA 3Gb/s connectors support RAID 0, 1, and  
JBOD configurations on Windows® Vista OS  
Audio  
USB  
ALC662 High Definition Audio 6-channel CODEC  
Supports Jack-detect and Multi-streaming  
Supports up to 10 USB 2.0/1.1 ports (6 ports at mid-board,  
4 ports at the back panel)  
LAN  
Realtek RTL8201CP Phy 10/100 LAN  
(continued on the next page)  
viii  
 
M2N68-AM SE2 specifications summary  
ASUS special features  
ASUS Quiet Thermal Solution  
ASUS Q-Fan  
ASUS EZ DIY  
-
-
-
ASUS CrashFree BIOS3  
ASUS EZ Flash2  
ASUS MyLogo2  
Back panel I/O ports  
1 x PS/2 Keyboard port  
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  
Internal I/O connectors  
3 x USB 2.0/1.1 connectors support additional  
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 fan connector  
1 x 24-pin EATX power connector  
1 x 4-pin ATX 12V power connector  
BIOS  
8Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0,  
ACPI2.0, SM BIOS 2.5  
Accessories  
1 x Serial ATA cable  
1 x UltraDMA 133/100/66 cable  
1 x IO shield  
User Manual  
Form Factor  
Support DVD  
MicroATX form factor: 9.6 in x 8.0 in  
Drivers  
ASUS Update  
ASUS PC Probe II  
Anti-Virus software (OEM version)  
*Specifications are subject to change without notice.  
ix  
Chapter 1  
Product introduction  
Thank you for buying an ASUS® M2N68-AM SE2 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, switch off the ATX power supply and  
detach its power cord. 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.  
1-1  
Chapter 1: Product introduction  
 
1.2  
Motherboard overview  
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.  
1.2.2  
Layout contents  
Connectors/Jumpers/Slots/LED  
Page Connectors/Jumpers/Slots/LED  
Page  
1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-13 9. USB connectors (10-1 pin USB56, USB 78, USB910) 1-12  
2. AM2 CPU Socket  
1-3  
1-3  
1-9  
1-11  
10. Clear RTC RAM (3-pin CLRTC)  
1-7  
3. DDR2 DIMM slots  
11. Internal speaker connector (4-pin SPEAKER)  
12. Standby power LED (SB_PWR)  
1-13  
1-1  
4. Keyboard/mouse power (3-pin PS2_USBPW 1-4)  
5. IDE connector (40-1 pin PRI_IDE)  
6. CPU fan connector (4-pin CPU_FAN)  
7. Serial ATA connectors (7-pin SATA1, SATA2)  
8. USB device wake-up (3-pin USBPW 5-10)  
13. System panel connector (10-1 pin F_PANEL)  
1-14  
1-11  
1-14  
1-7  
1-12 14. Optical drive audio connector (4-pin CD)  
1-10 15. Front panel audio connector (10-1 pin AAFP)  
1-8  
16. PCIe x16/PCIe x1/PCI slots  
ASUS M2N68-AM SE2  
1-2  
 
1.3  
Central Processing Unit (CPU)  
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 figure illustrates the location of  
the DDR2 DIMM sockets:  
Channel  
Sockets  
Channel A  
Channel B  
DIMM_A1  
DIMM_B1  
1-3  
Chapter 1: Product introduction  
 
1.4.2  
Memory configurations  
You may install 256MB, 512MB, 1GB, and 2GB unbuffered ECC and 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 configuration. 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.  
ASUS M2N68-AM SE2  
1-4  
 
M2N68-AM SE2 Motherboard Qualified Vendors List (QVL)  
DDR2-667MHz capability  
DIMM support  
SS/  
DS  
Chip  
Brand  
Vendor  
Part No.  
Size  
CL  
Chip No.  
A*  
B*  
SO1237650821 SBP D6408TR4CGL25  
USL074905PECNB  
Kingston  
KVR667D2N5/512  
512MB  
SS  
N/A  
Kingston  
Qimonda  
Micron  
HY  
HYS64T64000EU-3S-B2  
MT8HTF12864AY-667E1  
HYMP512U64CP8-Y5 AB  
AU512E667C5KBGC  
512MB  
1G  
SS  
SS  
DS  
SS  
DS  
SS  
DS  
DS  
SS  
DS  
DS  
DS  
SS  
DS  
DS  
5
HYB18T512B00B2F3SFSS28171  
D9HNL 7ZE17  
Qimonda  
Micron  
Hynix  
5
1G  
5
HY5PS12521CFP-Y5  
AM4B5708GQJS7E06332F  
E5108AJBG-6E-E  
Apacer  
512MB  
1G  
5
Apacer  
Elpida  
ADATA  
ADATA  
ADATA  
PSC  
Transcend 506010-4894  
5
ADATA  
ADATA  
ADATA  
PSC  
M2OAD5G3H3160Q1C52 512MB  
N/A  
N/A  
N/A  
5
AD29608A8A-3EG20813  
AD29608A8A-3EG80814  
AD20908A8A-3EG 30724  
A3R12E3JFF717B9A00  
A3R12E3JFF717B9A01  
Heat-Sink Package  
M2OAD5G314170Q1C58  
M2OAD5H3J4170I1C53  
AL6E8E63J-6E1  
1G  
2G  
512MB  
1G  
PSC  
AL7E8E63J-6E1  
5
PSC  
GEIL  
GX21GB5300SX  
1G  
3
GEIL  
G.SKILL  
Twinmos  
ELIXIR  
Leadmax  
F2-5400PHU2-2GBNT  
8D-A3JK5MPETP  
2G(kit of 2)  
512MB  
1G  
5-5-5-15 D2 64M8CCF 0815 C7173S  
G.SKILL  
PSC  
5
A3R12E3GEF633ACAOY  
M2Y1G64TU8HA2B-3C  
LRMP512U64A8-Y5  
5
M2TU51280AE-3C717095R28F  
HY5PS12821CFP-Y5 C 702AA  
ELIXIR  
Hynix  
1G  
N/A  
DDR2-800MHz capability  
DIMM support  
SS/  
DS  
Chip  
Brand  
Vendor  
Part No.  
Size  
CL  
Chip No.  
A*  
B*  
Kingston KHX6400D2LLK2/1GN  
Kingston KVR800D2N5/1G  
512MB  
1G  
SS  
DS  
SS  
SS  
DS  
SS  
DS  
SS  
SS  
SS  
SS  
DS  
SS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
N/A  
N/A  
6
Heat-Sink Package  
Kingston  
Elpida  
E5108AJBG-8E-E  
Samsung M378T2863QZS-CF7  
Samsung M391T2863QZ3-CF7  
Samsung M378T5263AZ3-CF7  
Qimonda HYS64T64000EU-2.5-B2  
1G  
K4T1G084QQ-HCF7  
K4T1G084QQ-HCF7(ECC)  
K4T2G084QA-HCF7  
Samsung  
Samsung  
Samsung  
Qimonda  
Corsair  
N/A  
1G  
6
4G  
N/A  
6
512MB  
2G(Kit of 2)  
HYB18T512800B2F25FSS28380  
Heat-Sink Package  
Corsair  
Crucial  
HY  
CM2X2048-6400C5DHX  
BL12864AA804.8FE5  
5
2G(Kit of 2)(EPP)  
N/A  
5
Heat-Sink Package  
HYMP564U64CP8-S5 AB  
512MB  
512MB  
512MB  
2G  
HY5PS12821CFP-S5  
KKA8FF1XF-JFS-25A  
AM4B5708JQJS8E0751C  
AM4B5808CQJS8E0747D  
VD29608A8A-25EG20813  
AD29608A8A-25EG80810  
A3R1GE3CFF750RABBP(ECC)  
Heat-Sink Package  
Hynix  
Kingmax KLDC28F-A8KI5  
N/A  
5
Kingmax  
Apacer  
Apacer  
VDATA  
ADATA  
PSC  
Apacer  
Apacer  
VDATA  
ADATA  
PSC  
78.91G91.9K5  
78.A1GA0.9K4  
5
M2GVD6G3H3160Q1E52  
M2OAD6G314170Q1E58  
AL7E8E63H-10E1K  
GX22GB6400LX  
512MB  
1G  
N/A  
N/A  
5
2G  
GEIL  
2G  
5
GEIL  
G.SKILL  
G.SKILL  
OCZ  
F2-6400CL4D-2GBHK  
F2-6400CL4D-4GBPK  
OCZ2VU8004GK  
28V0H8  
1G  
4
Heat-Sink Package  
G.SKILL  
G.SKILL  
OCZ  
2G  
4
Heat-Sink Package  
1G  
6
Heat-Sink Package  
Century  
1G  
5
HY5PS12821CFP-S5  
Hynix  
1-5  
Chapter 1: Product introduction  
DDR2-1066MHz capability  
DIMM support  
SS/  
DS  
Chip  
Brand  
Vendor Part No.  
Size  
CL  
Chip No.  
A*  
B*  
Corsair  
GEIL  
CM2X1024-8500C5 1G  
GB24GB8500C5QC 1G  
DS  
SS  
N/A  
Heat-Sink Package  
N/A  
5
GL2L128M88BA25AB  
GEIL  
DDR2 1066 is supported by AM2+ CPU only.  
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  
configuration.  
B*: Supports one pair of modules inserted into both the yellow slots as one pair of  
dual-channel memory configuration.  
1.5  
Expansion slots  
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.  
3.  
4.  
Remove the chassis cover (if your motherboard is already installed in a chassis).  
Remove the bracket opposite the slot that you intend to use.  
Align the card connector with the slot and press firmly until the card is completely  
seated on the slot.  
5.  
6.  
Secure the card to the chassis with the screw.  
Replace the chassis cover.  
ASUS M2N68-AM SE2  
1-6  
 
1.5.2  
Configuring an expansion card  
After installing the expansion card, configure 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, conflicts 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 specifications.  
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 specifications.  
1.5.5  
PCI Express x16 slot  
This motherboard supports PCI Express x16 graphics cards that comply with the PCI  
Express specifications.  
1.6  
Jumpers  
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.  
1-7  
Chapter 1: Product introduction  
 
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 reenter  
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.  
ASUS M2N68-AM SE2  
1-8  
3.  
Keyboard/mouse power (3-pin PS2_USBPW1-4)  
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
2
3 4  
10  
9
8
7
6
5
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.  
LED  
LAN port LED indications  
LED  
(Orange) (Green)  
LED (Orange)  
LED (Green)  
Status  
OFF  
Description  
Status  
Description  
No link  
OFF  
No link  
ORANGE  
100Mbps connection Green  
10Mbps connection  
LAN port  
1-9  
Chapter 1: Product introduction  
 
3.  
4.  
5.  
Line In port (light blue). This port connects to the tape, CD, DVD player, or other  
audio sources.  
Line Out port (lime). This port connects to a headphone or a speaker. In 4-channel  
and 6-channel configurations, the function of this port becomes Front Speaker Out.  
Microphone port (pink). This port connects to a microphone.  
Refer to the audio configuration table below for the function of the audio ports in 2, 4, or  
6-channel configuration.  
Audio 2, 4, 6-channel configuration  
Port  
Headset 2-channel  
Line In  
4-channel  
6-channel  
Light Blue  
Lime  
Rear Speaker Out  
Front Speaker Out  
Mic In  
Rear Speaker Out  
Front Speaker Out  
Bass/Center  
Line Out  
Pink  
Mic In  
6.  
7.  
8.  
9.  
USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports connect to  
USB 2.0 devices.  
USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports connect to  
USB 2.0 devices.  
Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other  
VGA-compatible devices.  
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 specification. 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.  
ASUS M2N68-AM SE2  
1-10  
 
2.  
IDE connector (40-1 pin PRI_IDE)  
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 configure your devices.  
Drive jumper setting  
Mode of device(s)  
Cable connector  
Black  
Single device  
Two devices  
Cable-Select or Master  
-
Master  
Slave  
Master  
Slave  
Black  
Cable-Select  
Gray  
Master  
Slave  
Black or gray  
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.  
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.  
1-11  
Chapter 1: Product introduction  
4.  
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, then install the module to a slot opening at the back of the system  
chassis. These USB connectors comply with the USB 2.0 specification 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. Insufficient air flow  
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.  
ASUS M2N68-AM SE2  
1-12  
6.  
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 fit these connectors in only one orientation. Find the proper orientation and  
push down firmly until the connectors completely fit.  
We recommend that you use an ATX 12V Specification 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, make sure that the 20-pin  
power plug can provide at least 15 A on +12 V and that the PSU has a minimum power  
rating of 300 W. 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 configuring 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.  
1-13  
Chapter 1: Product introduction  
8.  
System panel connector (10-1 pin F_PANEL)  
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 flashes 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 Definition 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-definition 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.  
ASUS M2N68-AM SE2  
1-14  
1.8  
Software support  
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  
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 file ASSETUP.EXE from the BIN folder. Double-click  
ASSETUP.EXE to run the DVD.  
1-15  
Chapter 1: Product introduction  
 
Chapter 2  
BIOS information  
2.1  
Managing and updating your BIOS  
Save a copy of the original motherboard BIOS file to a USB flash 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.  
2.  
3.  
Place the Support DVD into the optical drive. The Drivers menu appears.  
Click the Utilities tab, then click Install ASUS Update.  
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 traffic, 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 information  
2-1  
 
Updating from a BIOS file  
a. Select Update BIOS from a file, then click Next.  
b. Locate the BIOS file 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 file from the ASUS website at www.asus.com.  
To update the BIOS using EZ Flash 2:  
1.  
Insert the USB flash disk that contains the latest BIOS file to a USB port, then launch  
EZ Flash 2 in either of the following ways.  
Press <Alt> + <F2> during POST to display the following:  
ASUSTek EZ Flash 2 BIOS ROM Utility V3.34  
FLASH TYPE: MXIC 25L8005  
Current ROM  
Update ROM  
BOARD: Unknown  
VER: Unknown  
BOARD: M2N68-AM SE2  
VER: 0207 (H:00 B01)  
DATE: 01/07/2009  
DATE: Unknown  
PATH: A:\  
A:  
Note  
[Enter] Select or Load [Tab] Switch [V] Drive Info  
[Up/Down/Home/End] Move[B] Backup [Esc] Exit  
Enter the BIOS setup program. Go to the Tools menu to select EZ Flash 2 and  
press <Enter> to enable it.  
2.  
Press <Tab> to locate the correct file. Press <Enter>.  
When the correct BIOS file is found, EZ Flash 2 performs the BIOS updating process and  
automatically reboots the system when done.  
Only a USB flash 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!  
2-2  
ASUS M2N68-AM SE2  
 
2.1.3  
ASUS CrashFree BIOS 3 utility  
The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file  
when it fails or gets corrupted during the updating process. You can update a corrupted BIOS  
file using the motherboard Support DVD or a USB flash disk that contains the updated BIOS  
file.  
Prepare the motherboard Support DVD or a USB flash 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 flash disk containing the BIOS file to the optical disk  
drive or a USB port.  
The utility displays the following message and automatically checks the Support DVD  
or the USB flash disk for the BIOS file.  
Bad BIOS checksum. Starting BIOS recovery...  
Checking for CD-ROM...  
When the BIOS file is found, the utility reads it and starts erasing the corrupted BIOS  
file.  
Bad BIOS checksum. Starting BIOS recovery...  
Checking for CD-ROM...  
CD-ROM found!  
Reading file “M2NAMSE2.ROM”. Completed.  
Start Erasing...  
Start Programming...  
3.  
Restart the system after the utility completes the updating process.  
Only a USB flash 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 file from the ASUS website at www.asus.com.  
Chapter 2: BIOS information  
2-3  
 
2.2  
BIOS setup program  
Use the BIOS Setup program when you are installing a motherboard, reconfiguring your  
system, or prompted to “Run Setup.” This section explains how to configure 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 file 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.  
BIOS SETUP UTILITY  
Main  
Advanced  
Power  
Boot  
Tools  
Exit  
Use [ENTER], [TAB]  
or [SHIFT-TAB] to  
select a field.  
System Time  
System Date  
[19:34:30]  
[Wed 08/27/2008]  
Use [+] or [-] to  
configure system Time.  
IDE Configuration  
Primary IDE Master  
Primary IDE Slave  
SATA1  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
Select Screen  
Select Item  
SATA2  
Change Field  
+-  
Tab  
Select Field  
System Information  
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.  
2-4  
ASUS M2N68-AM SE2  
 
2.3.3  
IDE Configuration  
The items in this menu allow you to set or change the configurations for the IDE devices  
installed in the system. Select an item then press <Enter> if you want to configure the item.  
Onboard IDE Controller [Enabled]  
Enables or disables the onboard IDE controller. Configuration options: [Disabled] [Enabled]  
Serial ATA Devices [Enabled]  
Enables or disables the Serial ATA devices. Configuration options: [Enabled] [Disabled]  
nVidia RAID Function [Disabled]  
Enables or disables the NVIDIA RAID function. Configuration options: [Disabled] [Enabled]  
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-configurable. 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 specifically configuring a CD-ROM drive. Select  
[ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or MO drive.  
Configuration 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.  
Configuration 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. Configuration options: [Disabled] [Auto]  
PIO Mode [Auto]  
Selects the PIO mode. Configuration options: [Auto] [0] [1] [2] [3] [4]  
DMA Mode [Auto]  
Selects the DMA mode. Configuration options: [Auto]  
SMART Monitoring [Auto]  
Sets the Smart Monitoring, Analysis, and Reporting Technology.  
Configuration options: [Auto] [Disabled] [Enabled]  
32Bit Data Transfer [Enabled]  
Enables or disables 32-bit data transfer. Configuration options: [Disabled] [Enabled]  
Chapter 2: BIOS information  
2-5  
 
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-configurable. 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.  
Configuration 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. Configuration options: [Disabled] [Auto]  
PIO Mode [Auto]  
Selects the PIO mode. Configuration options: [Auto] [0] [1] [2] [3] [4]  
DMA Mode [Auto]  
Selects the DMA mode. Configuration options: [Auto]  
SMART Monitoring [Auto]  
Sets the Smart Monitoring, Analysis, and Reporting Technology. Configuration options: [Auto]  
[Disabled] [Enabled]  
32Bit Data Transfer [Enabled]  
Enables or disables 32-bit data transfer. Configuration options: [Disabled] [Enabled]  
2.3.6  
System Information  
This menu gives you an overview of the general system specifications. The BIOS  
automatically detects the items in this menu.  
AMI BIOS  
Displays the auto-detected BIOS information  
Processor  
Displays the auto-detected CPU specification  
System Memory  
Displays the auto-detected system memory  
2-6  
ASUS M2N68-AM SE2  
 
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 field  
values can cause the system to malfunction.  
BIOS SETUP UTILITY  
Main  
Advanced  
Power  
Boot  
Tools  
Exit  
JumperFree Configuration  
CPU Configuration  
Chipset  
Adjust System  
Frequency etc.  
Onboard Devices Configuration  
PCIPnP  
USB Configuration  
2.4.1  
JumperFree Configuration  
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 Profile] - Loads overclocking profiles 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. Configuration options: [200.0] [201.0] - [299.0]  
[300.0]  
The following item appears only when the CPU Overclocking item is set to  
[Overclock Profile].  
Overcloking Options [Auto]  
Allows you to select the overclocking profile. Configuration options: [Auto]  
[Overclock 3%] [Overclock 5%] [Overclock 7%]  
PCIE Overclocking [Auto]  
Configures the PCIE overclocking options. Configuration 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. Configuration options: [100] [101] - [149] [150]  
Chapter 2: BIOS information  
2-7  
 
Processor Frequency Multiplier [Auto]  
Allows you to select the processor frequency. Configuration 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. Configuration options: [Power Saving Mode]  
[Standard] [+50mv] [+100mv]  
Memory Clock Mode [Auto]  
Allows you to select the memory clock mode. Configuration options: [Auto] [Manual]  
The following item appears only when the Memory Clock Mode item is set to [Manual].  
Memclock Value [200MHz]  
Allows you to set the memory clock value.  
Configuration options: [200MHz] [266MHz] [333MHz] [400MHz]  
DRAM Timing Mode [Auto]  
Allows you to set the DRAM timing mode. Configuration options: [Auto] [DCT 0]  
The following sub-items appear only when you set the DRAM Timing Mode item to  
[DCT 0].  
CAS Latency (CL) [Auto]  
Configuration options: [Auto] [3 CLK] ~ [6 CLK] [7 CLK DH_Only]  
TRCD [Auto]  
Configuration options: [Auto] [3 CLK] ~ [6 CLK]  
TRP [Auto]  
Configuration options: [3 CLK] ~ [6 CLK] [Auto]  
tRTP [Auto]  
Configuration options: [Auto] [2-4 CLK] [3-5 CLK]  
TRAS [Auto]  
Configuration options: [Auto] [5 CLK] ~ [18 CLK]  
TRC [Auto]  
Configuration options: [Auto]  
tWR [Auto]  
Configuration options: [Auto] [3 CLK] ~ [6 CLK]  
TRRD [Auto]  
Configuration options: [Auto] [2 CLK] ~ [5 CLK]  
tRWTTO [Auto]  
Configuration options: [Auto] [2 CLK] ~ [9 CLK]  
tWRRD [Auto]  
Configuration options: [Auto] [0 CLK] ~ [3 CLK]  
tWTR [Auto]  
Configuration options: [Auto] [1 CLK] [2 CLK] [3 CLK]  
tWRWR [Auto]  
Configuration options: [Auto] [1 CLK] [2 CLK] [3 CLK]  
2-8  
ASUS M2N68-AM SE2  
tRDRD [Auto]  
Configuration options: [Auto] [2 CLK] ~ [5 CLK]  
tRFCO [Auto]  
Configuration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns]  
tRFC1 [Auto]  
Configuration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns]  
tRFC2 [Auto]  
Configuration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns]  
tRFC3 [Auto]  
Configuration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns]  
Memory Voltage [Auto]  
Allows you to set the memory voltage. Configuration options: [Auto] [2.050V] [2.150V]  
[2.250V]  
Chipset Voltage [Auto]  
Allows you to set the chipset voltage. Configuration options: [Auto] [1.35V]  
2.4.2  
CPU Configuration  
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. Configuration options: [Disabled] [Enabled]  
Microcode Updation [Enabled]  
Allows you to enable or disable the microcode updation. Configuration options: [Disabled]  
[Enabled]  
Secure Virtual Machine Mode [Disabled]  
Allows you to enable or disable the AMD Secure Virtual Machine mode. Configuration  
options: [Disabled] [Enabled]  
Cool ‘n’ Quiet [Disabled]  
Allows you to enable or disable the generation of ACPI_PPC, _PSS, and _PCT objects.  
Configuration options: [Disabled] [Enabled]  
CPU Prefetching [Enabled]  
Enables or disables the CPU prefetching. Configuration options: [Enabled] [Disabled]  
Chapter 2: BIOS information  
2-9  
 
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 Configuration  
Memory Configuration  
Bank Interleaving [Disabled]  
Allows you to enable the bank memory interleaving.  
Configuration options: [Disabled] [Auto]  
Channel Interleaving [Disabled]  
Allows you to enable the channel memory interleaving.  
Configuration options: [Disabled] [Address bits 6] [Address bits 12]  
[XOR of Address bits [20:16, 6]] [XOR of Address bits [20:16, 9]]  
Enable Clock to All DIMMs [Disabled]  
Enables or disables clock to all DIMMs. Configuration options: [Disabled] [Enabled]  
MemClk Tristate C3/ATLVID [Disabled]  
Enables or disables the MemClk Tristate C3/ALTVID.  
Configuration options: [Disabled] [Enabled]  
Memory Hole Remapping [Enabled]  
Enables or disables the memory remapping around memory hole.  
Configuration options: [Disabled] [Enabled]  
DCT Unganged Mode [Auto]  
Allows you to enable or disable Unganed mode.  
Configuration options: [Auto] [Always]  
Power Down Enable [Enabled]  
Enables or disables the DDR power down mode.  
Configuration options: [Disabled] [Enabled]  
ECC Configuration  
ECC Mode [Disabled]  
Enables or disables the DRAM ECC that allows the hardware to report and correct  
memory errors automatically. Configuration options: [Disabled] [Basic] [Good] [Super]  
[Max] [User]  
SouthBridge Configuration  
Primary Graphics Adapter [PCIE -> PCI -> IGP]  
Allows you to select the primary graphics adapter.  
Configuration options: [PCIE -> PCI -> IGP] [IGP -> PCI-> PCIE]  
OnChip VGA Frame Buffer Size [128MB]  
Sets the onchip VGA frame buffer size. Configuration options: [32MB] [64MB] [128MB]  
[256MB]  
AZALIA AUDIO [Auto]  
Allows you to enable or disable the HD audio mode. Configuration options: [Disabled] [Auto]  
Front Panel Select [HD Audio]  
Allows you to set the HD audio mode. Configuration options: [AC97] [HD Audio]  
2-10  
ASUS M2N68-AM SE2  
 
MAC LAN [Auto]  
Allows you to set or disable the onboard LAN. Configuration options: [Auto] [Disabled]  
Onboard LAN Boot ROM [Disabled]  
Allows you to enable or disable the Onboard LAN boot ROM.  
Configuration options: [Enabled] [Disabled]  
MCP68 SE ACPI HPET TABLE [Enabled]  
Allows you to enable or disable the MCP68 SE ACPI HPET TABLE.  
Configuration options: [Disabled] [Enabled]  
2.4.4  
Onboard Devices Configuration  
Serial Port1 Address [3F8/IRQ4]  
Allows you to select the Serial Port1 base address.  
Configuration options: [Disabled] [3F8/IRQ4][2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]  
2.4.5  
PCI PnP  
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 field values  
can cause the system to malfunction.  
Plug and Play O/S [No]  
When set to [No], BIOS configures all the devices in the system. When set to [Yes] and if  
you install a Plug and Play operating system, the operating system configures the Plug and  
Play devices not required for boot. Configuration options: [No] [Yes]  
2.4.6  
USB Configuration  
The items in this menu allows you to change the USB-related features. Select an item then  
press <Enter> to display the configuration 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. Configuration options: [Enabled] [Disabled]  
USB 2.0 Controller [Enabled]  
Enables or disables the USB 2.0 Controller. Configuration options: [Enabled] [Disabled]  
Chapter 2: BIOS information  
2-11  
 
Legacy USB Support [Auto]  
Allows you to enable or disable support for Legacy USB storage devices, including USB flash  
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. Configuration options: [Disabled] [Enabled]  
[Auto]  
USB 2.0 Controller Mode [HiSpeed]  
Allows you to configure the USB 2.0 controller in HiSpeed (480 Mbps) or Full Speed  
(12 Mbps). Configuration options: [FullSpeed] [HiSpeed]  
2.5  
Power menu  
The Power menu items allow you to change the settings for the Advanced Configuration and  
Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then  
press <Enter> to display the configuration options.  
Select the ACPI state  
used for System  
Suspend.  
Suspend Mode  
ACPI 2.0 Support  
ACPI APIC Support  
[Auto]  
[Disabled]  
[Enabled]  
APM Configuration  
Hardware Monitor  
2.5.1  
Suspend Mode [Auto]  
Allows you to select the Advanced Configuration and Power Interface (ACPI) state to be used  
for system suspend. Configuration options: [S1 (POS) Only] [S3 Only] [Auto]  
[S1(POS) Only] - Enables the system to enter the ACPI S1 (Power on Suspend) sleep state.  
In S1 sleep state, the system appears suspended and stays in a low power  
mode. The system can be resumed at any time.  
[S3 Only] - Enables the system to enter the ACPI S3 (Suspend to RAM) sleep state (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.  
[Auto] - Detected by OS.  
2.5.2  
ACPI 2.0 Support [Disabled]  
Allows you to add additional tables as per Advanced Configuration and Power Interface  
(ACPI) 2.0 specifications. Configuration options: [Disabled] [Enabled]  
2-12  
ASUS M2N68-AM SE2  
 
2.5.3  
ACPI APIC Support [Enabled]  
Allows you to enable or disable the Advanced Configuration and Power Interface (ACPI)  
support in the Application-Specific Integrated Circuit (ASIC). When set to Enabled, the ACPI  
APIC table pointer is included in the RSDT pointer list. Configuration options: [Disabled]  
[Enabled]  
2.5.4  
APM Configuration  
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. Configuration options: [Power On]  
[Power Off]  
Power On By PCI(-E) 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.  
Configuration options: [Disabled] [Enabled]  
Power On By Ring [Disabled]  
Enable or disable RI to generate a wake event. Configuration options: [Disabled] [Enabled]  
Power On By PS/2 KB/MS [Disabled]  
Enable or disable PS/2 Keyboard/Mouse to generate a wake event.  
Configuration 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. Configuration 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 field 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 efficient system operation. Configuration options: [Disabled] [Enabled]  
Chapter 2: BIOS information  
2-13  
 
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.  
BIOS SETUP UTILITY  
Main  
Advanced  
Power  
Boot  
Tools  
Exit  
Specifies the Boot  
Device Priority  
sequence.  
Boot Settings  
Boot Device Priority  
A virtual floppy disk  
drive (Floppy Drive B:)  
may appear when you set  
the CD-ROM drive as the  
first boot device.  
Boot Settings Configuration  
Security  
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. Configuration options: [Removable Device] [Hard Drive]  
[ATAPI CD-ROM ] [Disabled]  
2.6.2  
Boot Settings Configuration  
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. Configuration options: [Disabled] [Enabled]  
Full Screen Logo [Enabled]  
This allows you to enable or disable the full screen logo display feature.  
Configuration 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. Configuration options: [Force BIOS] [Keep Current]  
Bootup Num-Lock [On]  
Allows you to select the power-on state for the NumLock. Configuration options: [Off] [On]  
Wait for ‘F1’ If Error [Enabled]  
When set to Enabled, the system waits for the F1 key to be pressed when error occurs.  
Configuration options: [Disabled] [Enabled]  
Hit ‘DEL’ Message Display [Enabled]  
When set to Enabled, the system displays the message Press DEL to run Setup during  
POST. Configuration options: [Disabled] [Enabled]  
2-14  
ASUS M2N68-AM SE2  
 
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 configuration 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.  
Confirm 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.  
Configuration options: [No Access] [View Only] [Limited] [Full Access]  
[No Access] - prevents user access to the Setup utility.  
[View Only] - allows access but does not allow change to any field.  
[Limited] - allows changes only to selected fields, such as Date and Time.  
[Full Access] - allows viewing and changing all the fields 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.  
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.  
Confirm 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.  
Chapter 2: BIOS information  
2-15  
 
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. Configuration options: [Setup] [Always]  
2.7  
Tools menu  
BIOS SETUP UTILITY  
Boot Tools Exit  
Main  
Advanced  
Power  
Press ENTER to run  
the utility to select  
and update BIOS.  
This utility doesn't  
support :  
ASUS EZ Flash 2  
1.NTFS format  
2.7.1  
ASUS EZ Flash 2  
Allows you to run ASUS EZ Flash 2. When you press <OK>, a confirmation message  
appears. Use the left/right arrow key to select between [Yes] or [No], then press <OK> to  
confirm 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 system setup  
after saving the  
changes.  
Exit & Save Changes  
Exit & Discard Changes  
Discard Changes  
F10 key can be  
used for this  
operation.  
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.  
2-16  
ASUS M2N68-AM SE2  
 

Hanns G Hi221AP User Manual
GE ZGU36 User Manual
GE 25951 Series User Manual
Dell Computer Hardware 3010 User Manual
Datacom Systems J Class User Manual
Curtis Mathes CM19102 User Manual
Black Box Computer Hardware ACU5501A R4 User Manual
ASRock Computer Hardware Version 1 0 User Manual
Albatron Technology DM 6952KF User Manual
Abit IS7 User Manual