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686BX
USER'S MANUAL
1. System power on by PS/2 Mouse: First, enable this function
in CMOS Setup, then 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 larger than 720 mA 5V Stand-By current, you can
power on your system by entering password from the
keyboard after setting the “Keyboard power on” password in
CMOS Setup.
3. Supports 3 steps ACPI LED.
4. Modem Ring-On. (COM B)
5. Wake-Up on LAN. (on J13)
6. Supports LDCM®
Pentium II Processor MAINBOARD
REV. 1.0 First Edition
Release Date 98.03.19
R-01-01-080319
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686BX
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.
March 19, 1998 Taipei, Taiwan
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Quick Installation Guide
I. Quick Installation Guide :
CPU SPEED SETUP
The system bus speed is selectable between 66.6MHz and 100 MHz. The
user can select the system bus speed (JP6) and 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.
CLK RATIO SW 1 SW 2 SW 3 SW 4
X3
X3.5
X4
X4.5
X5
X5.5
ON OFF ON ON
OFF OFF ON ON
ON ON OFF ON
OFF ON OFF ON
ON OFF OFF ON
OFF OFF OFF ON
JP6
1-2 CLOSE : System Speed is set to 66 MHz
2-3 CLOSE : Reserved (For Future use only!)
1-2-3 OPEN : System Speed is set to 100MHz
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686BX
I. Set system speed to 66MHz: JP6 pin 1-2 short will cause
system always run at 66 MHz FSB (Front Side Bus).
JP6
3 2 1
II. Set system speed to 100MHz: JP6 pin 1-2-3 open will cause
system always run at 100MHz FSB.
JP6
3 2 1
III. Function for future use: Please don’ t short this pins right now!
JP6
3 2 1
1. Pentium II 300 / 100MHz FSB
PIIX4
4 3 2 1
82443BX
JP6 1
JP6
ON
3
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2. Pentium II 350 / 100MHz FSB
4 3 2 1
4 3 2 1
4 3 2 1
4 3 2 1
Quick Installation Guide
JP6
SW
3 2 1
3. Pentium II 400 / 100MHz FSB
JP6
3 2 1
4. Pentium II 450 / 100MHz FSB
SW
JP6
3 2 1
5. Pentium II 233 MHz / 66MHz FSB
SW
ON
ON
ON
JP6
3 2 1
SW
ON
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686BX
4 3 2 1
6. Pentium II 266 / 66MHz FSB
JP6
SW
3 2 1
7. Pentium II 300 MHz / 66MHz FSB
JP6
SW
3 2 1
II. Jumper setting :
SPK : Speaker Connector
ON
4 3 2
ON
82443BX
PIIX4
PIN FUNCTION
RST : Reset Switch
1 VCC
2 NC
3 NC
4 Data
JP6
SPK
1
1
5
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PIIX4
Quick Installation Guide
82443BX
JP6
PW LED : Power LED Connector
PIIX4
PIN FUNCTION
1 LED (+)
2 NC
3 LED (-)
HD : IDE Hard Disk Active LED
RST
JP6
Power LED
Open: Normal Close: Reset System
82443BX
1
6
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686BX
82443BX
PIIX4
JP6
PIN FUNCTION
1 LED (+)
2 LED (-)
HD LED
IR : Infrared Connector (Optional)
PIIX4
PIN FUNCTION
1 IR Data Output
2 GND
3 IR Data Input
4 Signal
5 POWER (+)
1
82443BX
JP6
1
IR Connector
GN : Green Function Switch
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PIIX4
Quick Installation Guide
82443BX
JP6
Soft POWER : Soft Power Connector
PIIX4
JP6
Soft Power
POWER1 : Power Connector
GN
Open: Normal Close: Enter Green Mode
82443BX
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686BX
1
Power Good
15-17
18
-5V
11
PS/2 Keyboard
PS/2 Mouse
PIIX4
PS/2 Mouse / Keyboard Connector
82443BX
Pin No.
Function
3,5,7,13,
GND
4,6,19,20
JP6
VCC(+5V)
10
+12V
12
-12V
8
9
5V SB
14
PS-ON
PIIX4
JP6
J1 : CPU Cooling Fan Power Connector
9
82443BX
Page 12
PIIX4
J1
PIN
FUNCTION1GND
2
+12V
3
SENSE
FAN Power
111
RED LINE
IDE1: For Primary IDE port
Quick Installation Guide
1
82443BX
JP6
PIIX4
IDE2: For Secondary IDE port
82443BX
JP6
IDE1
1
1
10
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686BX
111
1
1
RED LINE
IDE2
JP6
111
1
RED LINE
PIIX4
J3 : FLOPPY PORT
82443BX
JP6
PIIX4
LPT PORT / COM A / COM B
82443BX
FLOPPY
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Quick Installation Guide
1-2
2-3
Enable
Disable
LPT PORT
PIIX4
JP1 : Keyboard Power On Selection
PIIX4
82443BX
JP6
82443BX
COM B
JP1
COM A
1
J1
2
3
Keyboard Power On
Default: Disable
CN1: USB Port
JP6
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686BX
J1
Pin No.
Function12345678
GND
GND
PIIX4
J15: ATX Power Control Selection
PIIX4
82443BX
JP6
82443BX
USB V0
USB D0USB D0+
USB V0
USB D1-
USB D1+
J15
J13:Wake On LAN
JP6
Open: Soft Off Close: Full On
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PIIX4
1
JP6
Pin No.
1
2
SB-LINK
Quick Installation Guide
82443BX
Pin No. Function
1 +5V SB
2 GND
3 Signal
JP6
J14:Creative PCI Sound Card Support
J14
PIIX4
5 6
4
Function
1 Signal
2 GND
3 NC
4 Signal
5 GND
6 Signal
82443BX
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686BX
ROM PCI / ISA BIOS
CHIPSET FEATURES SETUP
AWARD SOFTWARE, INC.
: 1
EDO CASx# MA Wait State
: 1
Video RAM Cacheable
System BIOS Cacheable
Memory Hole At 15M-16M
: 1
Video BIOS Cacheable
ore
Current - 5 V
: 56
Alarm When CPU Overheat
F6
III. Top Performance Test Setting:
The following performance data list is the testing results of some popular
benchmark testing programs.
Users have to modify the value for each item in chipset features as follow
for top performance setting.
¢J
EDO RASx# Wait State
SDRAM CAS latency Time
DRAM Data Integrity Mode
16 Bit I/O Recovery Time
Delayed Transaction
Clock Spread Spectrum
Slow Down CPU Duty Cycle
CPU Temperature Select
CPUFan Control
*CPUFan Fail Alarm
: 2
: Non-ECC
: Enabled
: Enabled
: Disabled
: Disabled
: Disabled
: Disable
: Disable
: Disabled
: 75 /167
: Disabled
: Disabled
Current CPU Temperature
Current CPU FAN Speed
Current CPUVC
Current CPUVC
Current +3.3 V
Current +5 V
Current +12 V
Current - 12 V
Current Battery Life
: Quit
F1
¢K¢J
: Help
F5
: Old Values
: Load BIOS Defaults
F7
: Load PERFORMANCE Defaults
A
B
ore
PU/PD/+/(Shift)F2
¡ô¡õ¡÷¡ö
: 5152 RPM
: 2.83 V
: 1.50 V
: 3.53 V
: 4.99 V
: 12.28 V
:-11.81 V
:-5.04 V
: OK
: Select ItemESC
: Modify
: Color
/132
¢K
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Quick Installation Guide
These data are just referred by users, and there is no responsibility for
different testing data values gotten by users. (Different Hardware &
Software configuration will result in different benchmark testing results.)
• CPU
• DRAM (32 x 2) MB SDRAM (MICRON MT 48LC2M8A1 -8)
• CACHE SIZE 512 KB included in CPU
• DISPLAY GA-600 AGP Display Card (4MB SGRAM)
• STORAGE Onboard IDE (IBM DHEA-36480)
• O.S. Windows NT™ 4.0
• DRIVER Display Driver at 1024 x 768 x 64k colors x 75Hz.
Processor
Pentium II processor
TRIONES Bus Master IDE Driver 3.70
Intel Pentium II
300MHz(100x3)
Winbench98
795
FPU Winmark
1560
Business Disk 1670 1780
Hi-End Disk 3300 3620
Business Graphics 165 188
Hi-End Graphics 183 214
952
1850
Winstone98
Business 29.8 33.8
Hi-End 31.2 35.3
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