DFI AK76-SN User Manual
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DFI AK76-SN User Manual

Rev. a+ system board
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AK76-SN
Rev. A+
System Board
User’s Manual
46500051

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Summary of Contents for DFI AK76-SN

  • Page 1 AK76-SN Rev. A+ System Board User’s Manual 46500051...
  • Page 2 Copyright Trademarks Caution:...
  • Page 3 FCC and DOC Statement on Class B...
  • Page 4 Table of Contents Chapter 1 - Introduction Chapter 2 - Hardware Installation Chapter 3 - Award BIOS Setup Utility...
  • Page 5 Chapter 4 - Supported Softwares Appendix A - System Error Messages Appendix B - Troubleshooting...
  • Page 6 Introduction Chapter 1 - Introduction 1.1 Features and Specifications 1.1.1 Features Chipset Processor System Memory...
  • Page 7 Introduction Expansion Slots The system board is equipped with 1 universal AGP slot. AGP is an interface designed to support high performance 3D graphics cards. It utilizes a dedicated pipeline to access system memory for texturing, z-buffering and alpha blending. The universal AGP slot supports AGP 2x with up to 533MB/sec.
  • Page 8 Introduction PCI Bus Master IDE Controller IrDA Interface USB Ports BIOS Desktop Management Interface (DMI)

  • Page 9: System Health Monitor Functions

    Introduction BIOS. DMI, along with the appropriately networked software, is designed to make inventory, maintenance and troubleshooting of computer systems easier. Refer to chapter 4 for instructions on using the DMI utility. 1.1.2 System Health Monitor Functions The system board is capable of monitoring the following “system health”...
  • Page 10 Introduction Dual Function Power Button Wake-On-Ring Important: If you are using a modem add-in card, the 5VSB power source of your power supply must support a minimum of ≥ 720mA. Wake-On-LAN Important: The 5VSB power source of your power supply must support a minimum of ≥...
  • Page 11 Introduction AC Power Failure Recovery ACPI Virus Protection 1.2 Package Checklist þ þ þ þ ¨ þ...
  • Page 12 Hardware Installation Chapter 2 - Hardware Installation 2.1 System Board Layout...

  • Page 13: Hardware Installation

    Hardware Installation Warning: Electrostatic discharge (ESD) can damage your system board, processor, disk drives, add-in boards, and other components. Perform the upgrade instruction procedures described at an ESD workstation only. If such a station is not available, you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the system chassis.
  • Page 14 Hardware Installation 2.2.1 Installing the DIM Module...
  • Page 15 Hardware Installation 2.3 Selecting the CPU Frequency Ratio SW1’ s default setting. SW1: Pin 5 Ratio Ratio On: Auto - the system will run according 5.5x 9.5x to the CPU’s default ratio. Settings on pins 1 to 4 will have no effect. 6.5x 10.5x Off: Manual - use pins 1, 2, 3 and 4 to...
  • Page 16 Hardware Installation 2.4 Selecting the CPU Core Voltage SW2’s default setting. SW2: Pin 5 Voltage Voltage 1.475V 1.675V Off: Auto - the system will run according 1.500V 1.700V to the CPU’s default core voltage. 1.525V 1.725V Settings on pins 1 to 4 will have no effect.
  • Page 17 Hardware Installation 2.5 Jumper Settings for Selecting the CPU’s Front Side Bus CPU Front Side Bus Select - Jumpers JP2, JP3 and JP4...

  • Page 18: Jumper Settings For Clearing Cmos Data

    Hardware Installation 2.6 Jumper Settings for Clearing CMOS Data Clear CMOS Data - Jumper JP1 a) CMOS data becomes corrupted. b) You forgot the supervisor or user password. c) You are unable to boot-up the computer system because the CPU’s external system bus clock was incorrectly set in the BIOS.
  • Page 19 Hardware Installation...
  • Page 20 Hardware Installation 2.7 Ports and Connectors 2.7.1 Serial Ports...
  • Page 21 Hardware Installation 2.7.2 PS/2 Mouse and PS/2 Keyboard Ports Warning: Make sure to turn off your computer prior to connecting or disconnecting a mouse or keyboard. Failure to do so may damage the system board.
  • Page 22 Hardware Installation 2.7.3 Parallel Port Setting Function...
  • Page 23 Hardware Installation 2.7.4 Floppy Disk Drive Connector Connecting the Floppy Disk Drive Cable...

  • Page 24: Ide Disk Drive Connector

    Hardware Installation 2.7.5 IDE Disk Drive Connector Connecting the IDE Disk Drive Cable Note: Refer to your disk drive user’s manual for information about selecting proper drive switch settings.
  • Page 25 Hardware Installation Adding a Second IDE Disk Drive Important: If you encountered problems while using an ATAPI CD-ROM drive that is set in Master mode, please set the CD-ROM drive to Slave mode. Some ATAPI CD-ROMs may not be recognized and cannot be used if incorrectly set in Master mode.
  • Page 26 Hardware Installation 2.7.6 Universal Serial Bus Ports Pin Function Function...
  • Page 27 Hardware Installation...

  • Page 28: Irda Connector

    Hardware Installation 2.7.7 IrDA Connector Function Note: The sequence of the pin functions on some IrDA cable may be reversed from the pin function defined on the system board. Make sure to connect the cable to the IrDA connector according to their pin functions.
  • Page 29 Hardware Installation 2.7.8 CPU Fan 1 Connector Function...
  • Page 30 Hardware Installation 2.7.9 CPU Fan 2 Connector Function Ground +12V N. C. If you are installing a second CPU fan in the system unit, connect the fan’ s connector to location J9 (red connector) on the system board. The system is not capable of monitoring the speed of the fan that is connected to the CPU fan 2 connector.
  • Page 31 Hardware Installation 2.7.10 Chassis Fan 1 and Chassis Fan 2 Connectors Chassis Fan 1 Chassis Fan 2 Function Function Ground Ground +12V +12V Sense N. C. The system board is equipped with two chassis fan connectors. Installing chassis fans will provide adequate airflow throughout the chassis to prevent overheating the CPU.
  • Page 32 Hardware Installation 2.7.11 Chip Fan Connector Function...
  • Page 33 Hardware Installation 2.7.12 Wake-On-LAN Connector Function Important: The 5VSB power source of your power supply must support ≥ 720mA.
  • Page 34 Hardware Installation 2.7.13 Wake-On-Ring Connector Function Important: If you are using a modem add-in card, the 5VSB power source of your power supply must support ≥ 720mA.

  • Page 35: Power Connector

    Hardware Installation 2.7.14 Power Connector Function Pin Function Important: The system board requires a minimum of 250W power supply.
  • Page 36 Hardware Installation 2.7.15 Front Panel LEDs and Switches SP-LED - ATX 5VSB Standby LED HD-LED: Primary/Secondary IDE LED G-LED: Green LED SPEAKER: Speaker Connector SP-SW: ATX Power Switch G-SW: Green Switch H-RST: Reset Switch...
  • Page 37 Hardware Installation P-LED: Power/Standby LED Note: If a system did not boot-up and the Power/Standby LED did not light after it was powered-on, it may indicate that the CPU or memory module was not installed properly. Please make sure they are properly inserted into their corresponding socket. Pin Assignment SP-LED HD-LED...

  • Page 38: Award Bios Setup Utility

    Award BIOS Setup Utility Chapter 3 - Award BIOS Setup Utility 3.1 The Basic Input/Output System CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Standard CMOS Features Frequency/Voltage Control Advanced BIOS Features Load Fail-Safe Defaults Load Optimized Defaults Advanced Chipset Features Integrated Peripherals Set Supervisor Password Power Management Setup...

  • Page 39: Standard Cmos Features

    Award BIOS Setup Utility 3.1.1 Standard CMOS Features CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Standard CMOS Features Item Help Date (mm:dd:yy) Tue, Dec 5 2000 Time (hh:mm:ss) 4 : 35 : 5 Menu Level IDE Primary Master Press Enter None Change the day, month, IDE Primary Slave...
  • Page 40 Award BIOS Setup Utility IDE HDD Auto Detection IDE Primary/Secondar y Master/Slave Access Mode Capacity Drive A and Drive B None 360K, 5.25 in. 1.2M, 5.25 in. 720K, 3.5 in. 1.44M, 3.5 in. 2.88M, 3.5 in. Video EGA/VGA...
  • Page 41 Award BIOS Setup Utility CGA 40 CGA 80 Mono Halt On No Errors All Errors All, But Keyboard All, But Diskette All, But Disk/Key Base Memory Extended Memory T otal Memory...

  • Page 42: Advanced Bios Features

    Award BIOS Setup Utility 3.1.2 Advanced BIOS Features CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Advanced BIOS Features Item Help Virus Warning Disabled CPU Internal Cache Enabled Menu Level External Cache Enabled Quick Power On Self Test Enabled Allows you to choose First Boot Device Floppy...
  • Page 43 Award BIOS Setup Utility CPU Internal Cache and External Cache Quick Power On Self Test First Boot Device, Second Boot Device, Third Boot Device and Boot Other Device Swap Floppy Drive Boot Up Floppy Seek Boot Up NumLock Status...
  • Page 44 Award BIOS Setup Utility Typematic Rate Setting Typematic Rate (Chars/Sec) Typematic Delay (Msec) Security Option System Setup OS Select for DRAM > 64MB...
  • Page 45 Award BIOS Setup Utility Video BIOS Shadow Enabled Disabled C8000-CBFFF Shadow to DC000-DFFFF Shadow Enabled Disabled...

  • Page 46: Advanced Chipset Features

    Award BIOS Setup Utility 3.1.3 Advanced Chipset Features CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Advanced Chipset Features Item Help System BIOS Cacheable Enabled Video RAM Cacheable Enabled Menu Level Memory Hole At 15M-16M Disabled AGP Aperture Size (MB) AGP Secondary Lat Timer AGP Fast Write Enabled...
  • Page 47 Award BIOS Setup Utility Memory Hole At 15M-16M AGP Aperture Size (MB) AGP Secondary Lat Timer AGP Fast Write AGP Data Transfer Mode AGP Always Compensate SDRAM ECC Setting...
  • Page 48 Award BIOS Setup Utility Disabled Enabled Super Bypass Mode SDRAM Timing setting by SDRAM PH Limit SDRAM Idle Limit SDRAM Trc Timing Value SDRAM Trp Timing Value...
  • Page 49 Award BIOS Setup Utility SDRAM Tras Timing Value SDRAM CAS Latency SDRAM Trcd Timing Value...

  • Page 50: Integrated Peripherals

    Award BIOS Setup Utility 3.1.4 Integrated Peripherals CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Integrated Peripherals Item Help OnChip IDE Channel0 Enabled OnChip IDE Channel1 Enabled Menu Level IDE Prefetch Mode Enabled IDE Primary Master PIO Auto IDE Primary Slave PIO Auto IDE Secondary Master PIO Auto...
  • Page 51 Award BIOS Setup Utility Auto IDE Primary Master/Slave UDMA and IDE Secondary Master/ Slave UDMA Auto Disabled Init Display First PCI Slot OnChip USB1 OnChip USB2 USB Keyboard Support USB Mouse Support...
  • Page 52 Award BIOS Setup Utility IDE HDD Block Mode Enabled Disabled Onboard FDD Controller Enabled Disabled Onboard Serial Port 1 and Onboard Serial Port 2 UART 2 Mode...
  • Page 53 Award BIOS Setup Utility IR Function Duplex Half Full TX,RX Inverting Enable Onboard Parallel Port Parallel Port Mode Normal “ECP (Extended Capabilities Port)” “EPP (Enhanced Parallel Port)” ECP Mode Use DMA Parallel Port EPP Type...

  • Page 54: Power Management Setup

    Award BIOS Setup Utility 3.1.5 Power Management Setup CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Power Management Setup Item Help ACPI Function Enabled Power Management User Define Menu Level Video Off Method DPMS Support Standby Mode Disabled HDD Power Down Disabled HDD Down In Suspend Disabled...
  • Page 55 Award BIOS Setup Utility Max Saving User Define Video Off Method V/H SYNC + Blank Blank Screen DPMS Support Standby Mode HDD Power Down HDD Down In Suspend Soft-Off by PBTN...
  • Page 56 Award BIOS Setup Utility Delay 4 Sec Instant-Off PWRON After PWR-Fail Former-Sts Wake-Up by PCI Card (PME) USB Resume...
  • Page 57 Award BIOS Setup Utility RI Resume Modem USE IRQ RTC Resume Enabled Disabled Date (of Month) Alarm...
  • Page 58 Award BIOS Setup Utility Time (hh:mm:ss) Alarm IRQ Wakeup Events LPT & COM HDD & FDD PCI Master...

  • Page 59: Pnp Os Installed

    Award BIOS Setup Utility 3.1.6 PnP/PCI Configurations CMOS Setup Utility - Copyright (C) 1984-2000 Award Software PnP/PCI Configurations Item Help PNP OS Installed Reset Configuration Data Disabled Menu Level Resources Controlled By Auto (ESCD) Select Yes if you are IRQ Resources Press Enter using a Plug and Play DMA Resources...
  • Page 60 Award BIOS Setup Utility Auto Manual IRQ Resources (IRQ3/4/5/7/9/10/11/12/14/15) and DMA Resources (DMA0/1/3/5/6/7) PCI/ISA PnP Legacy ISA PCI/VGA Palette Snoop Enabled Disabled Assign IRQ for VGA Note: When Disabled, a “Yellow” mark will appear in Windows 95’s ® Device Manager.
  • Page 61 Award BIOS Setup Utility Assign IRQ for USB Note: When Disabled, a “Yellow” mark will appear in Windows 95’s ® Device Manager.

  • Page 62: Pc Health Status

    Award BIOS Setup Utility 3.1.7 PC Health Status CMOS Setup Utility - Copyright (C) 1984-2000 Award Software PC Health Status Item Help Current CPU Temp. 31°C/ 87°F Current System Temp. 31°C/ 87°F Menu Level Current CPUFAN1 Speed 0 RPM Current Chassis Fan Speed 0 RPM Vcore 2.06 V...

  • Page 63: Spread Spectrum

    Award BIOS Setup Utility 3.1.8 Frequency/Voltage Control CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Frequency/Voltage Control Item Help Auto Detect DIMM/PCI Clk Enabled Spread Spectrum Disabled Menu Level CPU Clock ↑↓→← Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help F5:Previous Values F6:Fail-Safe Defaults F7:Optimized Defaults...
  • Page 64 Award BIOS Setup Utility 3.1.9 Load Fail-Safe Defaults 3.1.10 Load Optimized Defaults...
  • Page 65 Award BIOS Setup Utility 3.1.11 Set Supervisor Password 3.1.12 Set User Password...
  • Page 66 Award BIOS Setup Utility 3.1.13 Save & Exit Setup 3.1.14 Exit Without Saving...
  • Page 67 Supported Softwares Chapter 4 - Supported Softwares 4.1 Desktop Management Interface (DMI) 4.1.1 Running the DMI Utility...

  • Page 68: Supported Softwares

    Supported Softwares 4.1.2 Using the DMI Utility Award DMI Configuration Utility Copyright Award Software Inc, 1996 [Edit DMI] [Add DMI] [Load DMI File] [Save DMI File] BIOS *** BIOS Auto Detect *** System Enclosure/Chassis Type : BIOS Information Processor Handle : 0000 Memory Controller Vendor Name : Memory Module...
  • Page 69 Supported Softwares Add DMI ← → ↑ ↓ Load DMI File ← → Press [Enter] to select DMI file for load Do you want to execute? (Y/N) Save DMI File ← → Press [Enter] to select DMI file for save...

  • Page 70: Drivers And Utilities

    Supported Softwares 4.2 Drivers and Utilities ® ® ® ® ® ®...
  • Page 71 System Error Message Appendix A - System Error Message A.1 POST Beep A.2 Error Messages CMOS BATTERY HAS FAILED Caution: Danger of explosion if battery incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the battery manufacturer’s instructions.
  • Page 72 System Error Message FLOPPY DISK(S) fail (80) FLOPPY DISK(S) fail (40) Hard Disk(s) fail (80) Hard Disk(s) fail (40) Hard Disk(s) fail (20) Hard Disk(s) fail (10) Hard Disk(s) fail (08) Keyboard is locked out - Unlock the key Keyboard error or no keyboard present Manufacturing POST loop BIOS ROM checksum error - System halted Memory test fail...
  • Page 73 Troubleshooting Appendix B - Troubleshooting B.1 Troubleshooting Checklist Monitor/Display If the display screen remains dark after the system is turned on:...

  • Page 74: Troubleshooting

    Troubleshooting The picture seems to be constantly moving. The screen seems to be constantly wavering. Power Supply When the computer is turned on, nothing happens. Floppy Drive The computer cannot access the floppy drive.

  • Page 75: Hard Drive

    Troubleshooting Hard Drive Hard disk failure. Excessively long formatting period. Parallel Port The parallel printer doesn’t respond when you try to print.
  • Page 76 Troubleshooting Serial Port The serial device (modem, printer) doesn’t output anything or is outputting garbled characters. Keyboard Nothing happens when a key on the keyboard was pressed. System Board...

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