GIGA-BYTE TECHNOLOGY CO., LTD. GA-686LX Device Type Mainboard Processor Pentium II Processor Speed 200/233/266/300/333/366MHz Chip Set Intel Video Chip Set None Maximum Onboard Memory 1GB (EDO & SDRAM supported) Maximum Video Memory None Cache 256/512KB (located on Pentium II CPU) BIOS Award Dimensions 305mm x 244mm 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 NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location AGP slot AGP CPU fan power J2 ATX power connector ATX Speaker J3 Serial port 1 CN1 Reset switch J4 Serial port 2 CN2 Power LED J5 Parallel port CN3 IDE interface LED J6 USB connector 1 CN4 IR connector J7 USB connector 2 CN4A Green PC connector J8 PS/2 mouse port CN5 Soft off power supply J9 IDE interface 2 CN6 Green PC LED J10 IDE interface 1 CN7 32-bit PCI slots PC1 – PC4 Floppy drive interface CN8 Note: The location of J10 is unidentified. USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not JP2 Unidentified alter DIMM CONFIGURATION 1GB 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) 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 96MB (1) 8M x 64 (1) 4M x 64 None None 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 152MB (1) 16M x 64 (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 160MB (1) 16M x 64 (1) 4M 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 224MB (1) 16M x 64 (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 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 304MB (1) 32M x 64 (1) 2M 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 320MB (1) 16M x 64 (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 352MB (1) 32M x 64 (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 384MB (1) 16M x 64 (1) 16M x 64 (1) 16M x 64 None 384MB (1) 32M x 64 (1) 16M x 64 None 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: Maximum EDO memory is 1GB. Maximum SDRAM is 512MB. CACHE CONFIGURATION Note: 256KB/512KB cache is located on the Pentium II CPU. CPU SPEED SELECTION CPU Clock Multiplier S1/1 S1/2 S1/3 S1/4 speed speed 200MHz 66MHz 3x Off On Off Off 233MHz 66MHz 3.5x On On Off Off 266MHz 66MHz 4x Off Off On Off 300MHz 66MHz 4.5x On Off On Off 333MHz 66MHz 5x Off On On Off 366MHz 66MHz 5.5x On On On Off