Gigabyte GA-6BA User manual

R-29-01-090122
6BA
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 300 mA 5V Stand-By current, you can
power on your system by entering password from the
Keyboard after setting the “Keyboard power on”jumper (JP1)
and password in CMOS Setup.
3. Support Modem Ring-On. (Include internal Modem and
external modem on COM A and COM B)
4. Wake-up on LAN supports(on J11): Your ATX power supply
must support larger than 720 mA 5V Stand-By current.
5. Support 3 steps ACPI LED.
6. Support LDCM

For Intel Pentium

II / III / CeleronProcessor MAINBOARD
REV. 2.9 First Edition

6BA
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.
Sound Blaster is a registered trademark of Creative Technology Ltd in the
United States and certain other countries. Sound Blaster-LINK and SB-LINK
are trademarks of Creative Technology Ltd.
Jan 22, 1999 Taipei, Taiwan

Quick Installation Guide
2
I. Quick Installation Guide :
CPU SPEED SETUP
The system bus speed can be selectable between 66.6MHz and 100MHz.
The user can select the system bus speed (JP8) and change the DIP
SWITCH selection to set up the CPU speed for 233 - 633MHz processor.
M 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
FREQ. RATIO 1 2 3 4
X 3 ON OFF ON ON
X 3.5 OFF OFF ON ON
X 4 ON ON OFF ON
X 4.5 OFF ON OFF ON
X 5 ON OFF OFF ON
X 5.5 OFF OFF OFF ON
X 6 ON ON ON OFF
X 6.5 OFF ON ON OFF
X 7 ON OFF ON OFF
X 7.5 OFF OFF ON OFF
X 8 ON ON OFF OFF
X 8.5 OFF ON OFF OFF
X 9 ON OFF OFF OFF
X 9.5 OFF OFF OFF OFF

6BA
3
MJP8 (Select the system speed between 66.6MHz and 100MHz)
1-2 Close Set system speed to 66MHz − system
always run at 66MHz FSB (Front Side Bus).
2-3 Close Set system speed to Auto − system
speed detect automatically (66/ 100MHz FSB).
1-2-3 Open Set system speed to 100MHz − system
always run at 100MHz FSB (Front Side Bus).
MThere are two ways to set system speed
A. 66MHz forced (JP8 1-2 short) or Auto detect (2-3 short)
B. 100MHz forced (JP8 1-2-3 open) or Auto detect (2-3 short)
1. PentiumII / Celeron233 / 66 MHz FSB
82443LX
6BA
1
PIIX4
82443BX
83977-EF
BIOS
4
3
2
1
SW
ON OFF
JP8 3 2 1
JP8 3 2 1
1
23
123
1
23

Quick Installation Guide
4
2. PentiumII / Celeron266 / 66 MHz FSB
3. PentiumII / Celeron300MHz / Celeron300A MHz/66MHz FSB
4. PentiumII / Celeron333 / 66 MHz FSB
5. PentiumII / Celeron366 / 66 MHz FSB
6. PentiumII / Celeron400 MHz / 66MHz FSB
SW 4
3
2
1
ON
OFF
JP8 3 2 1
SW 4
3
2
1
ON OFF
JP8 3 2 1
SW 4
3
2
1
ON OFF
JP8 3 2 1
SW 4
3
2
1
ON OFF
JP8 3 2 1
JP8 321
SW 4
3
2
1
ON OFF

6BA
5
7. PentiumII / Celeron433 MHz / 66MHz FSB
8. PentiumII 350 / 100 MHz FSB
9. PentiumII 400 / 100 MHz FSB
10. PentiumIII 450 / 100 MHz FSB
11. PentiumIII 500 / 100 MHz FSB
SW 4
3
2
1
ON OFF
JP8 321
SW 4
3
2
1
ON OFF
JP8
3
2 1
SW 4
3
2
1
ON OFF
JP8 3 2 1
SW 4
3
2
1
ON OFF
JP8 3 2 1
SW 4
3
2
1
ON OFF
JP8 321

Quick Installation Guide
6
12. PentiumIII 550MHz / 100MHz FSB
13. PentiumIII 600MHz / 100MHz FSB
14. PentiumIII 650MHz / 100MHz FSB
SW 4
3
2
1
ON OFF
JP8 321
SW 4
3
2
1
ON OFF
JP8 3 2 1
SW 4
3
2
1
ON
OFF
JP8 321

6BA
7
II. Jumper setting :
IR : Infrared Connector (Optional)
82443LX
6BA
PIIX4
82443BX
83977-EF
BIOS
+Pin Function
1IR Data Output
2GND
3IR Data Input
4NC
5POWER (+)
PWR : Power LED / Key-Lock Connector
82443LX
6BA
PIIX4
82443BX
83977-EF
BIOS
1Pin Function
1LED anode (+)
2LED cathode (−)
3LED cathode (−)
4Key Lock
5GND

Quick Installation Guide
8
SPK : Speaker Connector
82443LX
6BA
PIIX4
82443BX
83977-EF
BIOS
1Pin Function
1VCC
2NC
3NC
4Data
TD : Turbo LED Connector
82443LX
6BA
PIIX4
82443BX
83977-EF
BIOS
1Pin Function
1LED anode (+)
2LED cathode (−)