GIGA-BYTE TECHNOLOGY CO., LTD. GA-686LX4 (VER. 1.0) Device Type Mainboard Processor Pentium II Processor Speed 200/233/266/300/333/366MHz Chip Set Intel 440LX Maximum Onboard Memory 1GB (EDO & SDRAM supported) Cache 256/512KB (located on Pentium II 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 [Image] CONNECTIONS Purpose Location Purpose Location AGP slot AGP Serial port 1 CN2 ATX power connector ATX Serial port 2 CN3 Speaker C1 USB connector 1 CN4 Reset switch C2 USB connector 2 CN5 Power LED C3 PS/2 mouse port CN6 IDE interface LED C4 IDE interface 2 CN7 IR connector C5 IDE interface 1 CN8 Green PC connector C6 Floppy drive CN9 interface Soft off power supply C7 CPU fan power J1 Parallel port CN1 32-bit PCI slots PC1 - PC4 USER CONFIGURABLE SETTINGS Function Label Position ATX power supply select soft off J16 Open ATX power supply select full on J16 Closed » Keyboard power on disabled JP1 Pins 2 & 3 closed Keyboard power on enabled JP1 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 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 DIMM CONFIGURATION (CON'T) Size Bank 0 Bank 1 Bank 2 Bank 3 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. 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