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Asus A7M266 BIOS Update [Enabled], USB Legacy Support [Auto], Spread Spectrum Control [Enabled], PS/2 Mouse Function Control [Auto], OS/2 Onboard Memory > 64M [Disabled]

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4. BIOS SETUP

Spread Spectrum Control [Enabled]

Leave on default setting. Spread spectrum typically reduces system electromagnetic interference (EMI) by 8dB to 10dB.

CPU Level 1 Cache, CPU Level 2 Cache [Enabled]

These fields allow you to choose from the default of [Enabled] or choose [Disabled] to turn on or off the CPU’s Level 1 and Level 2 built-in cache. Configuration options: [Disabled] [Enabled]

CPU Level 2 Cache ECC Check [Disabled]

This function controls the ECC capability in the CPU level 2 cache. Configuration options: [Disabled] [Enabled]

BIOS Update [Enabled]

This functions as an update loader integrated into the BIOS to supply the processor with the required data. In the default position of [Enabled], the BIOS will load the update on all processors during system bootup. Configuration options: [Disabled] [Enabled]

PS/2 Mouse Function Control [Auto]

The default of [Auto] allows the system to detect a PS/2 mouse on startup. If detected, IRQ12 will be used for the PS/2 mouse. IRQ12 will be reserved for expansion cards only if a PS/2 mouse is not detected. [Enabled] will always reserve IRQ12, whether on startup a PS/2 mouse is detected or not. Configuration options: [Enabled] [Auto]

USB Legacy Support [Auto]

This motherboard supports Universal Serial Bus (USB) devices. The default of [Auto] allows the system to detect a USB device on startup. If de- tected, the USB controller will be enabled. If not detected, the USB controller will be disabled. When this field is set to [Disabled], the USB controller is disabled no matter whether you are using a USB device or not. Configuration options: [Disabled] [Enabled] [Auto]

OS/2 Onboard Memory > 64M [Disabled]

When using OS/2 operating systems with installed DRAM of greater than 64MB, you need to set this option to [Enabled]; otherwise, leave this on [Disabled]. Configuration options: [Disabled] [Enabled]

4. BIOS SETUP

Advanced Menu

ASUS A7M266 User’s Manual

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Contents

Page ASUS A7M266 1.04 E776 May ASUS A7M266 User’s Manual ASUSTeK COMPUTER INC. (Asia-Pacific) ASUS COMPUTER INTERNATIONAL (America) ASUS COMPUTER GmbH (Europe) Page Page Page 1.1How This Manual Is Organized 1.2 Item Checklist 2.1The ASUS A7M266 2.1.1 Specifications 2.1.2 Specifications – Optional Components 2.1.3Special Features 2.1.4 Performance Features 2.1.5Intelligence 2.2Motherboard Components 2.2.1Component Locations 3.1Motherboard Layout 3.2Layout Contents Page 3.3Getting Started 3.4Motherboard Settings Motherboard Features Settings (DIP Switches - DSCKF) 1) JumperFree™ Mode (JEN) setup (see 4.4 Advanced Menu) Setting JEN 2)Voltage Settings (VIO/VIO1) VIO1 3)Onboard PCI LAN Setting (LAN_EN) (optional) LAN_EN 4)USB Device Wake Up (USBPWR1, USBPWR2) 5)Onboard PCI Audio Setting (AUDIO_EN) (optional) Setting AUDIO_EN 6)CPU External Frequency Setting (DSCKF Switches 1–4) 1) JumperFree™ Mode (JEN) 3. HARDWARE SETUP CPU Frequency Manual CPU Settings Set the DIP switches by the internal speed of your processor as follows: 7)Voltage Regulator Output Setting (VID1, VID2, VID3, VID4) 3.5System Memory (DDR DIMM) 3.5.1General DIMM Notes 3.5.2 Memory Installation 3.6Central Processing Unit (CPU) NOTES Page 3.7Expansion Cards 3.7.1 Expansion Card Installation Procedure 3.7.2Assigning IRQs for Expansion Cards 3.7.3Accelerated Graphics Port Pro (AGP Pro) 3.7.4Audio Modem Riser (AMR) Slot 3.8External Connectors 3)Universal Serial Bus Ports 0 & 1 (Black two 4-pinUSB) 4)Serial Port Connectors (Teal/Turquoise 9-pinCOM1 / COM2) Onboard Serial Port 4.4.2 I/O Device Configu- ration 5)Parallel Port Connector (Burgundy 25-pinPRINTER) 6)Game/MIDI Connector (Gold 15-pinGAME_AUDIO) (optional) 7)Audio Port Connectors (Three 1/8” GAME_AUDIO) (optional) 8)Fast-EthernetPort Connector (RJ45) (optional) 9)Floppy Disk Drive Connector (34-1pin FLOPPY) 10)Primary (Blue) / Secondary IDE Connectors (Two 40-1pinIDE) 11)Chassis Intrusion Lead (4-1pin CHASSIS) 12)Standard Infrared Module Connector (5-1pin IR) UART2 Use Infrared 4.4.2 I/O Device Configuration) 13)Wake-On-LANConnector (3-pinWOLCON) 14)Wake-On-RingConnector (2-pinWOR) 6. SOFTWARE REFERENCE do not place jumper caps over these pins 16)USB Headers (10-1pin USBPORT) 17)SMBus Connector (5-1pin SMB) 18)ASUS iPanel Connector (24-1pin AFPANEL) 19)Power Supply Thermal Sensor Connector (2-pinblock JTPWR) 20)ATX Power Supply Connector (20-pinblock ATXPWR) 21)IDE Activity LED (2-pinIDELED) A7M266 System Panel Connectors 22)System Power LED Lead (3-1pin PWR.LED) 24)System Message LED Lead (2-pinMSG.LED) 25)System Management Interrupt Lead (2-pinSMI) 26)ATX Power Switch / Soft-OffSwitch Lead (2-pinPWR.SW) Page 3.9Starting Up the First Time Award BIOS Beep Codes 4. BIOS SETUP Powering Off your computer: Start Shut Down Shut down the computer 4.1Managing and Updating Your BIOS 4.1.1 Upon First Use of the Computer System 4.1.2 Updating BIOS Procedures Page Page 4.2BIOS Setup Program 4.2.1BIOS Menu Bar 4.2.2 Legend Bar General Help Saving Changes and Exiting the Setup Program Scroll Bar Sub-Menu 4.3Main Menu 4.3.1Primary & Secondary Master/Slave [User Type HDD] Translation Method [LBA] Cylinders Translation Method Head Sector CHS Capacity Maximum LBA Capacity Multi-SectorTransfers [Maximum] 4.3.2 Keyboard Features Language [English] A Note about Passwords Forgot the Password Halt On [All Errors] Installed Memory [XXX MB] 4.4Advanced Menu Spread Spectrum Control [Enabled] CPU Level 1 Cache, CPU Level 2 Cache [Enabled] CPU Level 2 Cache ECC Check [Disabled] BIOS Update [Enabled] PS/2 Mouse Function Control [Auto] Notes for JumperFree Mode 4.4.1Chip Configuration AGP Drive Strength P Ctrl [C] (When AGP 4X Drive Strength set to [Manual]) AGP Drive Strenght N Ctrl [5] AGP Data Strobe P Ctrl [F] AGP Data Strobe N Ctrl [F] AGP to DRAM Prefetch [Enabled] I/O Recovery Time [Medium (8 BCLKS)] Graphics Aperture Size [64MB] Video Memory Cache Mode [UC] 4.4.2I/O Device Configuration Onboard Peripheral Resource Control Game Port Function [Disabled] Onboard Legacy Audio Support [Disabled] Sound Blaster Emulation [Disabled] Sound Blaster I/O Base Address [220h-22Fh] Sound Blaster IRQ [IRQ5] 4.4.3PCI Configuration PCI/PNP IRQ Resource Exclusion PCI/PNP DMA Resource Exclusion PCI/PNP UMB Resource Exclusion 4.4.4Shadow Configuration 4.5Power Menu Video Off Option [Suspend ->Off ] Video Off Method [DPMS OFF] HDD Power Down [Disabled] Suspend Mode [Disabled] PWR Button < 4 Secs [Soft Off] 4.5.1Power Up Control Automatic Power Up [Disabled] 4.5.2Hardware Monitor 4.6Boot Menu Boot Sequence Other Boot Device Select [INT18 Device (Network)] Plug & Play O/S [No] Reset Configuration Data [No] Boot Virus Detection [Enabled] Quick Power On Self Test [Enabled] 4.7Exit Menu Exit Saving Changes Exit Discarding Changes Load Setup Defaults Discard Changes Save Changes 5.1Install Operating System 5.2 Start Windows 5.3 A7 Series Motherboard Support CD 5.3.1 Installation Menu AMD Miniport Driver: USB patch file for AMD K7: Install ASUS PC Probe Vx.xx: ASUS Update Vx.xx: PC-Cillin 5.4Uninstalling Programs Page 6.1ASUS PC Probe 6.1.1 Starting ASUS PC Probe 6.1.2Using ASUS PC Probe Settings History Fan Control Information Hard Drives Memory Device Summary DMI Explorer Utility 6.1.3ASUS PC Probe Task Bar Icon 6.2ASUS Update 6.3YAMAHA XGPlayer 6.3.1 Using YAMAHA XGPlayer 6.3.2 YAMAHA XGstudio Player Control Panel 6.3.3YAMAHA XGstudio Mixer Control Panel 6.3.4 YAMAHA XGplayer Minimize Panel 6.3.5Troubleshooting 6.4 C-MediaMixer 6.4.1 C-MediaMixer Control Panel 6.4.2 Enabling 4-SpeakerFunction 7.1 Modem Riser 7.1.1 56K Software Modem 7.1.2 Primary/Seconday MR 7.1.3Hardware Installation Procedure 7.1.4Software Setup in Windows 7.3 Glossary Boot Bus Master IDE Byte (Binary Term) COM Port Concurrent PCI LPT Port (Line Printer Port) MMX OnNow PC100 PCI Bus (Peripheral Component Interconnect Local Bus) ROM (Read Only Memory) SCSI (Small Computer System Interface) SDRAM (Synchronous DRAM) SPD for SDRAM module SSE (Streaming SIMD Extensions)