Gigabyte GA-686BX (rev 2.x)
Also known as: Amptron PII-3100 Gigabyte GA-6BX (rev 2.x)
chipChipset
cpuCPU socket
Slot 1 (Slot-242)
cpuCPU family
Pentium III (Katmai)Pentium II (Deschutes)Pentium II (Klamath)Pentium III (Coppermine)
speedFSB speeds
66MHz100MHz
chipCache
None/Integrated in the CPU
ramRAM types
SDR UDIMMSDR ECC UDIMM
ramMax RAM size
1GB
pwrPSU connector
ATX 1.x (20-pin ATX)
moboForm factor
ATX (max 305 x 244 mm)
dimDimensions
305mm x 190mm
connI/O ports
1x 
Floppy interface
2x 
IDE interface
1x 
PS/2 keyboard
1x 
PS/2 mouse
1x 
Parallel
2x 
Serial
2x 
USB 1.x
1x 
SB_Link
cardExpansion slots
4x 
32-bit PCI
1x 
3.3V AGP
3x 
16-bit ISA

Notes

F1 BIOS adds officially supports for 75+ GB HDDs, F2a update microcodes

This motherboard uses a LinFinity regulator on the 3.3-V rail that is rated to only 5 A—less than the AGP specification, which requires 6 A. When diagnostics or applications are running, the temperature of the regulator rises, causing the voltage to the NVIDIA chip to drop as low as 2.2 V. Under these circumstances, the regulator cannot supply the current on the 3.3-V rail that the NVIDIA chip requires. This problem does not occur when the graphics board has a switching regulator or when an external power supply is connected to the 3.3-V rail.

Last updated 2023-05-25T12:16:25Z
 TRW ID: 2765
chipsetChipset
chipsetChipset parts
Intel 82443BX (PAC) Intel 82371EB (PIIX4E)
chipPower Regulation chips
chipClock Synth / PLL chips
chipSensing / Monitoring chips
chipSuper I/O chips
drv Drivers: 1 entry
Language
Media type
OS Compatibility
Name
Version
English
1x Installer
1995winWindows 95 1998winWindows 98 1999winWindows 2000 1999winWindows ME 2001winWindows XP
BIOS images: 8 files
Manuf.
POST String
Note
Core Ver.
BIOS Ver.
Award
02/10/1999-i440BX-W977-2A69KG09C-00
4.51PG
Award
01/25/1999-i440BX-W977-2A69KG09C-00
4.51PG
Award
12/18/1998-i440BX-W977-2A69KG09C-00
4.51PG
Award
10/12/1998-i440BX-W977-2A69KG09C-00
4.51PG
Award
09/04/1998-i440BX-W977-2A69KG09C-00
4.51PG
Award
05/11/98-i440BX-W977-2A69KG09C-00
Amptron OEM
4.51PG
Award
04/25/2001-i440BX-W977-GA686BX0C-00
Lastest Beta BIOS
4.51PG
Award
02/05/2001-i440BX-W977-GA686BX0C-00
Lastest BIOS
4.51PG
doc Other files: not available
Model
Speed
FSB
Voltages
L1 Cache
L2 Cache
L3 Cache
Core
Process
TDP
1000MHz
100MHz
1.7V
32KB
256KB
-
Coppermine
180nm
33W
850MHz
100MHz
1.65V
32KB
256KB
-
Coppermine
180nm
26W
800MHz
100MHz
1.65V
32KB
256KB
-
Coppermine
180nm
21W
750MHz
100MHz
1.65V
32KB
256KB
-
Coppermine
180nm
19W
700MHz
100MHz
1.65V
32KB
256KB
-
Coppermine
180nm
18W
650MHz
100MHz
1.65V
32KB
256KB
-
Coppermine
180nm
17W
600MHz
100MHz
1.65V
32KB
256KB
-
Coppermine
180nm
16W
550MHz
100MHz
1.65V
32KB
256KB
-
Coppermine
180nm
14W
500MHz
100MHz
1.65V
32KB
256KB
-
Coppermine
180nm
13W
600MHz
100MHz
2.05V
32KB
512KB
-
Katmai
250nm
34W
550MHz
100MHz
2V
32KB
512KB
-
Katmai
250nm
31W
500MHz
100MHz
2V
32KB
512KB
-
Katmai
250nm
28W
450MHz
100MHz
2V
32KB
512KB
-
Katmai
250nm
25W
450MHz
100MHz
2V
32KB
512KB
-
Deschutes
250nm
27W
400MHz
100MHz
2V
32KB
512KB
-
Deschutes
250nm
24W
350MHz
100MHz
2V
32KB
512KB
-
Deschutes
250nm
21W
433MHz
66MHz
2V
32KB
128KB
-
Mendocino
250nm
24W
400MHz
66MHz
2V
32KB
128KB
-
Mendocino
250nm
23W
366MHz
66MHz
2V
32KB
128KB
-
Mendocino
250nm
21W
333MHz
66MHz
2V
32KB
128KB
-
Mendocino
250nm
19W
333MHz
66MHz
2V
32KB
512KB
-
Deschutes
250nm
23W
300MHz
66MHz
2V
32KB
-
-
Covington
250nm
18W
300MHz
66MHz
2V
32KB
128KB
-
Mendocino
250nm
19W
300MHz
66MHz
2V
32KB
512KB
-
Deschutes
250nm
18W
266MHz
66MHz
2V
32KB
-
-
Covington
250nm
16W
266MHz
66MHz
2V
32KB
512KB
-
Deschutes
250nm
19W
300MHz
66MHz
2.8V
32KB
512KB
-
Klamath
350nm
43W
266MHz
66MHz
2.8V
32KB
512KB
-
Klamath
350nm
-
266MHz
66MHz
2.8V
32KB
512KB
-
Klamath
350nm
38W
233MHz
66MHz
2.8V
32KB
256KB
-
Klamath
350nm
-
233MHz
66MHz
2.8V
32KB
512KB
-
Klamath
350nm
34W
No NPUs listed.

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