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Gigabyte GA-686BLX User Manual

Pentium ii processor mainboard
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USER'S MANUAL
1.
System power on by PS/2 Mouse: If you are using ATX
power supply, you are able to power on the system by
double clicking your PS/2 Mouse right or left button.
2.
System power on by Keyboard: If your ATX power supply
supports 1 ampere 5V Stand-By function, you can choose to
power on your system by entering the password or just
press any key with the AT keyboard.
3.
Modem Ring-On on COM B.
4.
Wake-up on LAN supports.(on J9
5.
Support 3 or 4 steps ACPI LED.
Pentium
GA – 686BLX
)
II Processor MAINBOARD
REV. 1.0 Second Edition

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Summary of Contents for Gigabyte GA-686BLX

  • Page 1 GA – 686BLX USER'S MANUAL System power on by PS/2 Mouse: If you are using ATX power supply, you are able to power on the system by double clicking your PS/2 Mouse right or left button. System power on by Keyboard: If your ATX power supply supports 1 ampere 5V Stand-By function, you can choose to power on your system by entering the password or just press any key with the AT keyboard.
  • Page 3 GA-686BLX The author assumes no responsibility for any errors or omissions which 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.

  • Page 4: Cpu Speed Setup

    Quick Installation Guide I. Quick Installation Guide : CPU SPEED SETUP The system's speed is fixed to 66.6MHz. The user can change the DIP SWITCH (SW) selection to set up the CPU speed for 200 - 633MHz processor. The CPU speed must match with the frequency RATIO. It will cause system hanging up if the frequency RATIO is higher than CPU's.
  • Page 5 GA-686BLX 1. Pentium II 200 MHz + + + PIIX4 GA-686BLX 82443LX 2. Pentium II 233 MHz + + + PIIX4 GA-686BLX 82443LX...
  • Page 6 Quick Installation Guide 3. Pentium II 266 MHz + + + PIIX4 GA-686BLX 82443LX 4. Pentium II 300 MHz + + + PIIX4 GA-686BLX 82443LX...
  • Page 7 GA-686BLX 5. Pentium II 333 MHz + + + PIIX4 GA-686BLX 82443LX 6. Pentium II 366 MHz + + + PIIX4 GA-686BLX 82443LX...

  • Page 8: Spk : Speaker Connector

    Quick Installation Guide II. Jumper setting : PWR : Power LED / Key-Lock Connector + + + PIIX4 Pin No. GA-686BLX Function LED anode (+) LED cathode (-) Key Lock 82443LX SPK : Speaker Connector + + + PIIX4 Pin No.
  • Page 9 GA-686BLX TD : Turbo LED Connector + + + PIIX4 GA-686BLX Function Pin No. LED anode (+) LED cathode (-) 82443LX TB : Turbo Switch Connector + + + PIIX4 GA-686BLX Function Reserved 82443LX...

  • Page 10: Rst : Reset Switch

    Quick Installation Guide RST : Reset Switch + + + PIIX4 Open : GA-686BLX Normal operation. For Hardware Reset System 82443LX GN : Green Function Switch + + + PIIX4 Open : GA-686BLX Normal operation. Close: Enterning Green 82443LX Mode.
  • Page 11 GA-686BLX HD : IDE Hard Disk Active LED + + + PIIX4 Pin No. Function GA-686BLX LED anode (+) LED cathode (-) 82443LX Soft PWR : Soft Power Connector + + + PIIX4 GA-686BLX Pin No. Function CTRL-Signal 82443LX...

  • Page 12: J3 : Keyboard Connector

    Quick Installation Guide POWER : Power Connector + + + PIIX4 GA-686BLX Pin No. Function Power Good VCC (+5V) 2,10,11,12 +12V -12V 5,6,7,8 82443LX J3 : Keyboard Connector + + + PIIX4 Pin No. Function GA-686BLX Key Clock. Key Data...

  • Page 13: J2 : Cpu Cooling Fan Power Connector

    GA-686BLX J2 : CPU Cooling Fan Power Connector + + + PIIX4 Pin No. Function GA-686BLX +12V SENSE 82443LX IDE1: For Primary IDE port + + + PIIX4 RED LINE GA-686BLX 82443LX...
  • Page 14 Quick Installation Guide IDE2: For Secondary IDE port + + + PIIX4 RED LINE GA-686BLX 82443LX J5 : FLOPPY PORT + + + PIIX4 RED LINE GA-686BLX 82443LX...
  • Page 15 GA-686BLX J8 : LPT PORT + + + PIIX4 RED LINE GA-686BLX 82443LX J6 : COM B + + + PIIX4 GA-686BLX RED LINE 82443LX...

  • Page 16: Jp6 : Keyboard Power On

    Quick Installation Guide J7: COM A + + + PIIX4 GA-686BLX RED LINE 82443LX JP6 : Keyboard Power On + + + PIIX4 Open : GA-686BLX Disable Keyboard Power On. Close : Enable Keyboard Power On. 82443LX...
  • Page 17 GA-686BLX POWER1: ATX POWER Connector + + + PIIX4 Function Pin No. GA-686BLX 3,5,7,13,15-17 VCC (+5V) 4,6,19,20 +12V -12V 82443LX Power Good 5V SB (Stand by +5V) PS-ON (Soft ON/OFF) J2 : PS/2 MOUSE + + + PIIX4 GA-686BLX RED LINE...
  • Page 18 Quick Installation Guide CN3: USB Port + + + PIIX4 Function Pin No. GA-686BLX SBV 0- SBV 0+ 82443LX SBV1- SBV1+ J9: Wake on Lan + + + PIIX4 Function Pin No. GA-686BLX +5V SB Signal 82443LX...
  • Page 19 GA-686BLX J17: ACPI LED Selection + + + Normal: short: 4 steps PIIX4 open: 3 steps. Function Pin No. GA-686BLX Signal 82443LX J10: System After Ac Back + + + PIIX4 Normal:Open: Soft Off Short: Full on/Soft Off Function GA-686BLX Pin No.
  • Page 20 Quick Installation Guide J16: For PCI Audio / Sound Card use only + + + PIIX4 Function GA-686BLX Pin No. Signal Signal 82443LX Signal III. Top Performance Test Setting: Users have to modify the value for each item in chipset features as follow for top performance setting.

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