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
+++ +

GA-686BLX
9
HD : IDE Hard Disk Active LED
+++ +
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
Soft PWR : Soft Power Connector
+++ +
Pin No. Function
1
2CTRL-Signal
GND
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
1

Quick Installation Guide
10
POWER : Power Connector
1
Pin No. Function
1
2,10,11,12
3
4
5,6,7,8
VCC (+5V)
GND
+12V
-12V
-5V9
Power Good
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +
J3 : Keyboard Connector
1
2
3
4
5
Pin No. Function
1
2
3
4
5
Key Clock.
Key Data
NC
VCC (+5V)
GND
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +

GA-686BLX
11
J2 : CPU Cooling Fan Power Connector
Pin No. Function
1
2
1
3
GND
+12V
SENSE
82443LX
PIIX4
1
1
1
1
1
GA-686BLX
1
1
1
1
1
1
1
+++ +
IDE1: For Primary IDE port
1
RED LINE
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +

Quick Installation Guide
12
IDE2: For Secondary IDE port
1
RED LINE
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +
J5 : FLOPPY PORT
1
RED LINE
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +

GA-686BLX
13
J8 : LPT PORT
1
RED LINE
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +
J6 : COM B
1
RED LINE
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +

Quick Installation Guide
14
J7: COM A
1
RED LINE
82443LX
PIIX4
11
11
1
GA-686BLX
1
1
1
1
1
1
1
+ + + +
JP6 : Keyboard Power On
1
1
Open :
Disable Keyboard Power On.
Close :
Enable Keyboard Power On.
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +

GA-686BLX
15
POWER1: ATX POWER Connector
Pin No. Function
3,5,7,13,15-17
4,6,19,20
GND
10
12
18
8
+12V
-12V
-5V
VCC (+5V)
Power Good
9
14
5V SB
(Stand by +5V)
PS-ON
(Soft ON/OFF)
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +
J2 : PS/2 MOUSE
1
RED LINE
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
+++ +

Quick Installation Guide
16
CN3: USB Port
Pin No. Function
1
2
3
4
5
6
7
8
SBV 0-
SBV 0+
SBV1-
GND
VCC
GND
VCC
SBV1+
82443LX
PIIX4
1
1
1
1
1
GA-686BLX
1
1
1
1
1
1
1
+++ +
J9: Wake on Lan
Pin No. Function
1
2
3
GND
Signal
+5V SB
82443LX
PIIX4
1
1
1
1
1
GA-686BLX
1
1
1
1
1
1
1
1
1
+++ +

GA-686BLX
17
J17: ACPI LED Selection
Pin No. Function
1
2GND
Signal
82443LX
PIIX4
1
1
1
1
1
GA-686BLX
1
1
1
1
1
1
1
1
1
Normal: short: 4 steps
open: 3 steps.
+++ +
J10: System After Ac Back
Pin No. Function
1
2GND
82443LX
PIIX4
1
1
1
1
1
GA-686BLX
1
1
1
1
1
1
1
1
1
Normal:Open: Soft Off
Short: Full on/Soft Off
Signal
+
+
+
+

Quick Installation Guide
18
J16: For PCI Audio / Sound Card use only
Pin No. Function
1
2GND
Signal
82443LX
PIIX4
1
1
11
1
GA-686BLX
1
1
1
1
1
1
1
1
1
2
3NC
4Signal
5GND
6Signal
5
6
2
5
6
+
+
+
+
III. Top Performance Test Setting:
Users have to modify the value for each item in chipset features as follow
for top performance setting.
ROM PCI / ISA BIOS
CHIPSET FEATURES SETUP
AWARD SOFTWARE, INC.
: Select ItemESC
F1
F5
F7 : Load Setup Defaults
: Quit
: Help
: Old Values
PU/PD/+/-
(Shift)F2
: Modify
: Color
DRAM Speed Selection : Fast
Auto Configuration
DRAM Data Integrity Mode
: Enabled
Memory Hole At 15M-16M : Disabled
: Non-ECC
Video RAM Cacheable : Disabled
SDRAM RAS-to-CAS Delay
SDRAM RAS Precharge Time
SDRAM CAS latency Time : 2
CPU Temperature Select
CPU Temperature : OK
Fan Failure Control : Disabled
CPU Fan Status : XXXX
Power Supply +12V
Power Supply -12V
Power Supply +5V
Power Supply -5V
Battery Status
CPU VCore Voltage
: OK
: OK
: OK
: OK
: OK
: 2.8V
: 70
¢J
/158
¢K
Delayed Transaction : Disabled
Memory Buffer Strength : Middle
16 Bit I/O Recovery Time : 1
Power-Supply Type : Auto
Alarm When Overheat : Disabled
Slow Down CPU Duty Cycle : Normal
¡ô¡õ¡÷¡ö
: Fast
: Fast