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 [Image] CONNECTIONS Purpose Location Purpose Location AGP slot AGP IDE interface 1 CN8 ATX power ATX Floppy drive CN9 connector interface CPU fan power C1 IR connector IR1 SB-link connector C2 Wake on LAN J13 connector Power fan power C3 Wake on modem J19 connector 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 JP7/pins 15 & supply 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 None None None 64 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 (1) 1M x 64 None None 64 144MB (1) 16M x (1) 2M x 64 None None 64 176MB (1) 16M x (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 64 192MB (1) 16M x (1) 8M x 64 None None 64 192MB (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 None 256MB (1) 32M x None None None 64 256MB (1) 16M x (1) 16M x None None 64 64 256MB (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 272MB (1) 16M x (1) 16M x (1) 1M x 64 (1) 1M x 64 64 64 280MB (1) 32M x (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 64 288MB (1) 16M x (1) 16M x (1) 2M x 64 (1) 2M x 64 64 64 320MB (1) 16M x (1) 16M x (1) 4M x 64 (1) 4M x 64 64 64 384MB (1) 16M x (1) 16M x (1) 16M x None 64 64 64 448MB (1) 32M x (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 64 512MB (1) 32M x (1) 32M x None None 64 64 512MB (1) 16M x (1) 16M x (1) 16M x (1) 16M x 64 64 64 64 640MB (1) 32M x (1) 16M x (1) 16M x (1) 16M x 64 64 64 64 768MB (1) 32M x (1) 32M x (1) 32M x None 64 64 64 1024MB (1) 32M x (1) 32M x (1) 32M x (1) 32M x 64 64 64 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 Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 speed speed 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