Gigabyte GA – 686LX3 User Manual
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Gigabyte GA – 686LX3 User Manual

Gigabyte GA – 686LX3 User Manual

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USER'S MANUAL
1.
System power on by PS/2 Mouse: You can power on the
system by double clicking the right or left button of your
PS/2 Mouse.
2.
System power on by Keyboard: If your ATX power supply
supports 1 ampere 5V Stand-By function, you can power on
your system by entering password from keyboard.
3.
Supports 3 steps ACPI LED
Pentium ® II Processor MAINBOARD
GA – 686LX3
REV. 1.0 Second Edition
Release Date 98.1.15
R-10-01-080123

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  • Page 1 GA – 686LX3 USER'S MANUAL System power on by PS/2 Mouse: You can power on the system by double clicking the right or left button of your PS/2 Mouse. System power on by Keyboard: If your ATX power supply supports 1 ampere 5V Stand-By function, you can power on your system by entering password from keyboard.
  • Page 3 GA-686LX3 The author assumes no responsibility for any errors or omissions that may appear in this document nor does it make a commitment to update the information contained herein. Third-party brands and names are the property of their respective owners. January 14, 1998 Taipei, Taiwan...

  • Page 4: Cpu Speed Setup

    Quick Installation Guide I. Quick Installation Guide: CPU SPEED SETUP The default system bus speed is fixed to 66.6MHz. The user can change the DIP SWITCH (SW) selection to set up the CPU speed for 200 - 366MHz processor. The CPU speed MUST match with the frequency RATIO. It will cause system hanging up if the frequency RATIO is higher than that of CPU.
  • Page 5 GA-686LX3 1. Pentium ® II 200 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1 2. Pentium ® II 233 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1...
  • Page 6 Quick Installation Guide 3. Pentium ® II 266 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1 4. Pentium ® II 300 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1...
  • Page 7 GA-686LX3 5. Pentium ® II 333 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1 6. Pentium ® II 366 MHz 3 2 1 INTEL 440LX PIIX4 GA-686LX3 4 3 2 1...

  • Page 8: Spk : Speaker Connector

    Quick Installation Guide II. Jumper setting : PWR : Power LED Connector INTEL 440LX PIIX4 GA-686LX3 FUNCTION LED (+) Power LED LED (-) SPK : Speaker Connector INTEL 440LX PIIX4 GA-686LX3 FUNCTION Data...

  • Page 9: Rst : Reset Switch

    GA-686LX3 RST : Reset Switch INTEL 440LX PIIX4 GA-686LX3 Open: Normal Close: Reset System GN : Green Function Switch INTEL 440LX PIIX4 GA-686LX3 Open: Normal Close: Enter Green Mode...
  • Page 10 Quick Installation Guide HD : IDE Hard Disk Active LED INTEL 440LX PIIX4 GA-686LX3 FUNCTION LED (+) HD LED LED (-) Soft PWR : Soft Power Connector INTEL 440LX PIIX4 GA-686LX3 Soft Power...

  • Page 11: Ps/2 Mouse / Keyboard Connector

    GA-686LX3 POWER : Power Connector INTEL 440LX Pin No. Function PIIX4 3,5,7,13, 15-17 GA-686LX3 4,6,19,20 VCC(+5V) +12V -12V Power Good 5V SB PS-ON PS/2 Mouse / Keyboard Connector PS/2 Mouse INTEL 440LX PS/2 Keyboard PIIX4 Function Data GA-686LX3 VCC (+5V) Clock.

  • Page 12: J2 : Cpu Cooling Fan Power Connector

    Quick Installation Guide J2 : CPU Cooling Fan Power Connector INTEL 440LX FAN Power PIIX4 GA-686LX3 FUNCTION +12V SENSE IDE1: For Primary IDE port RED LINE INTEL 440LX PIIX4 GA-686LX3 IDE2 IDE1 FLOPPY...
  • Page 13 GA-686LX3 IDE2: For Secondary IDE port RED LINE INTEL 440LX PIIX4 GA-686LX3 IDE2 IDE1 FLOPPY J7 : FLOPPY PORT INTEL 440LX RED LINE PIIX4 GA-686LX3 IDE2 IDE1 FLOPPY...
  • Page 14 Quick Installation Guide LPT PORT / COM A / COM B COMA COMB LPT PORT LPT PORT INTEL 440LX COM B COM A PIIX4 GA-686LX3 IDE2 IDE1 FLOPPY JP1 : Keyboard Power On Selection Keyboard Power On INTEL Default: Disable 440LX Enable Disable...
  • Page 15 GA-686LX3 CN1: USB Port Function Pin No. INTEL USB V0 440LX USB D0- USB D0+ USB V0 PIIX4 GA-686LX3 USB D1- USB D1+ IDE2 IDE1 FLOPPY J13: ATX Power Control Selection INTEL 440LX PIIX4 GA-686LX3 Close: Full On Open: Soft Off...
  • Page 16 Quick Installation Guide III. Top Performance Test Setting: Users have to modify the value for each item in chipset features as follow for top performance setting. ROM PCI / ISA BIOS CHIPSET FEATURES SETUP AWARD SOFTWARE, INC. Auto Configuration : Enabled DRAM Speed Selection : Fast Memory Buffer Strength...

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