Gigabyte 686LX4 User manual

R-01-01-080119
686LX4
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 selectable.
4. Modem Ring-On. (COM B)
5. Wake-Up on LAN. (on J13)
Pentium

II Processor MAINBOARD
REV. 1.0 First Edition

686LX4
1
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.

Quick Installation Guide
2
January 19, 1998 Taipei, Taiwan
I. Quick Installation Guide :
CPU SPEED SETUP
The default system bus speed is 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 that of CPU.
DIP SWITCH (SW)
1 2 3 4
FREQ.
RATIO
EXT.CLK.
MHz
INT.CLK.
MHz CPU Type
OFF ON OFF OFF 366 200 PentiumII 200 MHz
ON ON OFF OFF 3.5 66 233 PentiumII 233 MHz
OFF OFF ON OFF 466 266 PentiumII 266 MHz
ON OFF ON OFF 4.5 66 300 PentiumII 300 MHz
OFF ON ON OFF 566 333 PentiumII 333 MHz
ON ON ON OFF 5.5 66 366 PentiumII 366 MHz
Main Clock JP4 JP3 JP2
66 MHz 1-2 1-2 1-2

686LX4
3
1. PentiumII 200 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4321
2. PentiumII 233 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4321

Quick Installation Guide
4
3. PentiumII 266 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4321
4. PentiumII 300 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4321
5. PentiumII 333 MHz

686LX4
5
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4321
6. PentiumII 366 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4321
II. Jumper setting :
SPK : Speaker Connector

Quick Installation Guide
6
1
PIIX4
INTEL
440LX
PIN
FUNCTION
1
VCC
2
NC
3
NC
4
Data
SPK
1
RST : Reset Switch
PIIX4
INTEL
440LX
RST
Open: Normal Close: Reset System
PWR : Power LED Connector

686LX4
7
PIIX4
INTEL
440LX
Power LED
PIN
FUNCTION
1
LED (+)
2
NC
3
LED (-)
1
HD : IDE Hard Disk Active LED
PIIX4
INTEL
440LX
PIN
FUNCTION
1
LED (+)
2
LED (-)
1
HD LED
IR : Infrared Connector

Quick Installation Guide
8
PIIX4
INTEL
440LX
PIN
FUNCTION
1
IR Data Output
2
GND
1
IR Connector
3
IR Data Input
4
Signal
5
POWER (+)
GN : Green Function Switch
PIIX4
INTEL
440LX
GN
Open: Normal Close: Enter Green Mode
Soft POWER : Soft Power Connector