| M2N68-AM SE2   Contents   Chapter 1: Product introduction   Jumpers ........................................................................................ 1-7   Chapter 2: BIOS information   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   |