GIGA-BYTE TECHNOLOGY CO., LTD.
GA-686LX4 (VER. 2.2)
Device Type | Mainboard |
Processor | Pentium II/Celeron |
Processor Speed | 233/266/300/333MHz |
Chip Set | Intel 440LX |
Maximum Onboard Memory | 1GB (EDO & SDRAM supported) |
Cache | 0/128/256/512KB (located on the CPU) |
BIOS | Award |
Dimensions | 305mm x 180mm |
I/O Options | 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connectors (2), ATX power connector, AGP slot, SB-link connector, wake on LAN connector, wake on modem connector |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
AGP slot | AGP | IDE interface 1 | CN8 |
ATX power connector | ATX | Floppy drive interface | CN9 |
CPU fan power | C1 | IR connector | IR1 |
SB-link connector | C2 | Wake on LAN connector | J13 |
Power fan power | C3 | Wake on modem connector | J19 |
Chassis fan power | C4 | Green PC LED | JP7/pins 1 & 12 |
Parallel port | CN1 | Reset switch | JP7/pins 3 & 4 |
Serial port 1 | CN2 | Speaker | JP7/pins 5 - 8 |
Serial port 2 | CN3 | IDE interface LED | JP7/pins 9 & 20 |
USB connector 1 | CN4 | Green PC connector | JP7/pins 11 & 22 |
USB connector 2 | CN5 | Soft off power supply | JP7/pins 15 & 16 |
PS/2 mouse port | CN6 | Power LED | JP7/pins 17 - 19 |
IDE interface 2 | CN7 | 32-bit PCI slots | PC1 - PC4 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | Keyboard power on disabled | JP1 | Pins 2 & 3 closed |
| Keyboard power on enabled | JP1 | Pins 1 & 2 closed |
» | CMOS memory normal operation | JP8 | Pins 2 & 3 closed |
| CMOS memory clear | JP8 | Pins 1 & 2 closed |
DIMM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
8MB | (1) 1M x 64 | None | None | None |
16MB | (1) 2M x 64 | None | None | None |
16MB | (1) 1M x 64 | (1) 1M x 64 | None | None |
24MB | (1) 2M x 64 | (1) 1M x 64 | None | None |
24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 | None |
32MB | (1) 4M x 64 | None | None | None |
32MB | (1) 2M x 64 | (1) 2M x 64 | None | None |
32MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
40MB | (1) 4M x 64 | (1) 1M x 64 | None | None |
48MB | (1) 4M x 64 | (1) 2M x 64 | None | None |
48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 | None |
64MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
64MB | (1) 8M x 64 | None | None | None |
64MB | (1) 4M x 64 | (1) 4M x 64 | None | None |
72MB | (1) 8M x 64 | (1) 1M x 64 | None | None |
80MB | (1) 8M x 64 | (1) 2M x 64 | None | None |
96MB | (1) 8M x 64 | (1) 4M x 64 | None | None |
96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 | None |
DIMM CONFIGURATION (CON'T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
128MB | (1) 16M x 64 | None | None | None |
128MB | (1) 8M x 64 | (1) 8M x 64 | None | None |
128MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
136MB | (1) 16M x 64 | (1) 1M x 64 | None | None |
144MB | (1) 16M x 64 | (1) 2M x 64 | None | None |
176MB | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
192MB | (1) 16M x 64 | (1) 8M x 64 | None | None |
192MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 | None |
256MB | (1) 32M x 64 | None | None | None |
256MB | (1) 16M x 64 | (1) 16M x 64 | None | None |
256MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
272MB | (1) 16M x 64 | (1) 16M x 64 | (1) 1M x 64 | (1) 1M x 64 |
280MB | (1) 32M x 64 | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
288MB | (1) 16M x 64 | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 |
320MB | (1) 16M x 64 | (1) 16M x 64 | (1) 4M x 64 | (1) 4M x 64 |
384MB | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 | None |
448MB | (1) 32M x 64 | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
512MB | (1) 32M x 64 | (1) 32M x 64 | None | None |
512MB | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 |
640MB | (1) 32M x 64 | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 |
768MB | (1) 32M x 64 | (1) 32M x 64 | (1) 32M x 64 | None |
1024MB | (1) 32M x 64 | (1) 32M x 64 | (1) 32M x 64 | (1) 32M x 64 |
Note: Board accepts EDO & SDRAM memory. Maximum SDRAM is 512MB. Maximum EDO is 1024MB. | ||||
CACHE CONFIGURATION |
Note: 256KB/512KB cache is located on the Pentium II CPU. 128KB cache is located on the Celeron 300A & 333 CPU. |
CPU SPEED SELECTION | |||||
CPU speed | Clock speed | Multiplier | JP2 | JP3 | JP4 |
200MHz | 66MHz | 3x | 1 & 2 | 1 & 2 | 1 & 2 |
233MHz | 66MHz | 3.5x | 1 & 2 | 1 & 2 | 1 & 2 |
266MHz | 66MHz | 4x | 1 & 2 | 1 & 2 | 1 & 2 |
300MHz | 66MHz | 4.5x | 1 & 2 | 1 & 2 | 1 & 2 |
333MHz | 66MHz | 5x | 1 & 2 | 1 & 2 | 1 & 2 |
366MHz | 66MHz | 5.5x | 1 & 2 | 1 & 2 | 1 & 2 |
Note: Pins designated should be in the closed position. | |||||
CPU SPEED SELECTION (CON'T) | ||||||
CPU speed | Clock speed | Multiplier | SW1/1 | SW1/2 | SW1/3 | SW1/4 |
200MHz | 66MHz | 3x | On | Off | On | On |
233MHz | 66MHz | 3.5x | Off | Off | On | On |
266MHz | 66MHz | 4x | On | On | Off | On |
300MHz | 66MHz | 4.5x | Off | On | Off | On |
333MHz | 66MHz | 5x | On | Off | Off | On |
366MHz | 66MHz | 5.5x | Off | Off | Off | On |