Gigabyte GA-686BLX User manual

GA –686BLX
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

II Processor MAINBOARD
REV. 1.0 Second Edition

GA-686BLX
1
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.
OCTOBER 17, 1997 Taipei, Taiwan

Quick Installation Guide
2
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.
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

GA-686BLX
3
1. PentiumII 200 MHz
82443LX
PIIX4
11
11
1
GA-686BLX
1
1
1
1
1
1
1
4
3
2
1
SW
ON OFF
+ + + +
2. PentiumII 233 MHz
82443LX
PIIX4
11
11
1
GA-686BLX
1
1
1
1
1
1
1
SW
ON OFF
4
3
2
1
+ + + +

Quick Installation Guide
4
3. PentiumII 266 MHz
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
SW
ON OFF
4
3
2
1
+++ +
4. PentiumII 300 MHz
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
SW
ON OFF
4
3
2
1
+++ +

GA-686BLX
5
5. PentiumII 333 MHz
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
SW
ON OFF
4
3
2
1
+++ +
6. PentiumII 366 MHz
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
SW
ON OFF
4
3
2
1
+++ +

Quick Installation Guide
6
II. Jumper setting :
PWR : Power LED / Key-Lock Connector
+++ +
Pin No. Function
1
2
LED anode (+)
LED cathode (-)
3
NC
4
5
Key Lock
GND 82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
1
SPK : Speaker Connector
+
+
+
+
Pin No. Function
1
2
VCC
NC
3NC
4Data
82443LX
PIIX4
1
1
1
1
1
GA-686BLX
1
1
1
1
1
1
1
1

GA-686BLX
7
TD : Turbo LED Connector
+++ +
Pin No. Function
1
2
LED anode (+)
LED cathode (-)
82443LX
PIIX4
1
1
1
1
1
GA-686BLX
1
1
1
1
1
1
1
1
TB : Turbo Switch Connector
Function Reserved
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +

Quick Installation Guide
8
RST : Reset Switch
1
1Open :
Normal operation.
For Hardware
Reset
System
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +
GN : Green Function Switch
1
1Open :
Normal operation.
Close:
Enterning Green
Mode.
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +