Page 1
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
Page 2
Page 3
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.
Page 4
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 3 66 200 Pentium
II 200 MHz
ON ON OFF OFF 3.5 66 233 Pentium
II 233 MHz
OFF OFF ON OFF 4 66 266 Pentium
II 266 MHz
ON OFF ON OFF 4.5 66 300 Pentium
II 300 MHz
OFF ON ON OFF 5 66 333 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
Page 5
686LX4
3
1. Pentium II 200 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4 3 2 1
2. Pentium II 233 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4 3 2 1
Page 6
Quick Installation Guide
4
3. Pentium II 266 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4 3 2 1
4. Pentium II 300 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4 3 2 1
5. Pentium II 333 MHz
Page 7
686LX4
5
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4 3 2 1
6. Pentium II 366 MHz
PIIX4
INTEL
440LX
JP2
JP3
JP4
3 2 1
ON
4 3 2 1
II. Jumper setting :
SPK : Speaker Connector
Page 8
Quick Installation Guide
6
1
PIIX4
INTEL
440LX
PIN
FUNCTION1VCC2NC3NC4Data
SPK
1
RST : Reset Switch
PIIX4
INTEL
440LX
RST
Open: Normal Close: Reset System
PWR : Power LED Connector
Page 9
686LX4
7
PIIX4
INTEL
440LX
Power LED
PIN
FUNCTION
1
LED (+)2NC3LED (-)
1
HD : IDE Hard Disk Active LED
PIIX4
INTEL
440LX
PIN
FUNCTION
1
LED (+)2LED (-)
1
HD LED
IR : Infrared Connector
Page 10
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
Page 11
686LX4
9
PIIX4
INTEL
440LX
1
Soft Power
POWER1 : Power Connector
PIIX4
INTEL
440LX
1
Power Good
Pin No.
3,5,7,13,
15-17
4,6,19,20
10
12
18
8
9
14
Function
GND
VCC(+5V)
+12V
-12V
-5V
5V SB
PS-ON
11
PS/2 Mouse / Keyboard Connector
Page 12
Quick Installation Guide
10
PIIX4
INTEL
440LX
PS/2 Keyboard
PS/2 Mouse
J1 : CPU Cooling Fan Power Connector
PIIX4
INTEL
440LX
PIN
FUNCTION
1
GND2+12V3SENSE
FAN Power
1
IDE1: For Primary IDE port
Page 13
686LX4
11
PIIX4
INTEL
440LX
111
FLOPPY
IDE1
IDE2
1
RED LINE
IDE2: For Secondary IDE port
PIIX4
INTEL
440LX
111
FLOPPY
IDE1
IDE2
1
RED LINE
J3 : FLOPPY PORT
Page 14
Quick Installation Guide
12
PIIX4
INTEL
440LX
111
FLOPPY
IDE1
IDE2
1
RED LINE
LPT PORT / COM A / COM B
PIIX4
INTEL
440LX
111
FLOPPY
IDE1
IDE2
COM B
LPT PORT
COM A
JP1 : Keyboard Power On
Page 15
686LX4
13
PIIX4
INTEL
440LX
111
FLOPPY
IDE1
IDE2
Keyboard Power On
Default: Disable
1
2
3
1-2
2-3
Enable
Disable
CN1: USB Port
PIIX4
INTEL
440LX
111
FLOPPY
IDE1
IDE2
Pin No.
Function
1234567
8
USB D0USB D0+
GND
USB V0
GND
USB V0
USB D1-
USB D1+
J16: ATX Power Control Selection
Page 16
Quick Installation Guide
14
PIIX4
INTEL
440LX
111
FLOPPY
IDE1
IDE2
J16
Open: Soft Off
Close: Full On
J13:Wake On LAN
PIIX4
INTEL
440LX
11
1
FLOPPY
IDE1
IDE2
Pin No. Function
1 +5V SB
2 GND
3 Signal
1
J15:Creative PCI Sound Card Support
Page 17
686LX4
15
PIIX4
INTEL
440LX
11
1
FLOPPY
IDE1
IDE2
Pin No.
Function
1 Signal
2 GND
3 NC
4 Signal
5 GND
6 Signal
1 2
5 6
4
Page 18
Quick Installation Guide
16
III. Top Performance Test Setting:
Users have to modify the value for each item in chipset features as follow
for top performance setting.
F7 : Load Setup Defaults
Slow Down CPU Duty Cycle
: Disabled
Current +3.3 V
Current CPUVC
A
Current - 12 V
Current - 5 V
:-11.81 V
:-5.04 V
Current CPU1 Temperature
¢K¢J
¢K¢J
Current Battery Life
: OK
Loading...