GIGA-BYTE TECHNOLOGY CO., LTD. GA-686DX Processor Pentium Pro Processor Speed 150/166/180/200/233/266MHz Chip Set Intel Video Chip Set None Maximum Onboard Memory 512MB (EDO supported) Maximum Video Memory None Cache 256/512KB (located on Pentium Pro CPU) BIOS Award Dimensions 305mm x 244mm I/O Options 32-bit PCI slots (5), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connector, ATX power connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location ATX power connector ATX Reset switch J2 Serial port 1 CN1 Power LED J3 Parallel port CN2 IDE interface LED J4 Serial port 2 CN3 IR connector J5 PS/2 mouse port CN4 Green PC connector J6 USB connector CN5 Soft on power supply J7 (optional) IDE interface 1 CN6 Green PC LED J8 IDE interface 2 CN7 Chassis fan power JP2 Floppy drive interface CN8 Chassis fan power JP4 Speaker J1 32-bit PCI slots PC1 – PC5 DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 8MB (2) 1M x 36 None None 16MB (2) 1M x 36 (2) 1M x 36 None 16MB (2) 2M x 36 None None 24MB (2) 2M x 36 (2) 1M x 36 None 24MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 32MB (2) 4M x 36 None None 32MB (2) 2M x 36 (2) 2M x 36 None 40MB (2) 4M x 36 (2) 1M x 36 None 48MB (2) 4M x 36 (2) 2M x 36 None 48MB (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 56MB (2) 4M x 36 (2) 2M x 36 (2) 1M x 36 64MB (2) 8M x 36 None None 64MB (2) 4M x 36 (2) 4M x 36 None 80MB (2) 8M x 36 (2) 2M x 36 None 80MB (2) 8M x 36 (2) 1M x 36 (2) 1M x 36 88MB (2) 8M x 36 (2) 2M x 36 (2) 1M x 36 96MB (2) 8M x 36 (2) 4M x 36 None 96MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 96MB (2) 8M x 36 (2) 2M x 36 (2) 2M x 36 104MB (2) 8M x 36 (2) 4M x 36 (2) 1M x 36 112MB (2) 8M x 36 (2) 4M x 36 (2) 2M x 36 128MB (2) 8M x 36 (2) 4M x 36 (2) 4M x 36 128MB (2) 16M x 36 None None 128MB (2) 8M x 36 (2) 8M x 36 None 136MB (2) 8M x 36 (2) 8M x 36 (2) 1M x 36 136MB (2) 16M x 36 (2) 1M x 36 None 144MB (2) 16M x 36 (2) 2M x 36 None 144MB (2) 16M x 36 (2) 1M x 36 (2) 1M x 36 152MB (2) 16M x 36 (2) 2M x 36 (2) 1M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 160MB (2) 16M x 36 (2) 4M x 36 None 160MB (2) 16M x 36 (2) 2M x 36 (2) 2M x 36 168MB (2) 16M x 36 (2) 4M x 36 (2) 1M x 36 176MB (2) 16M x 36 (2) 4M x 36 (2) 2M x 36 192MB (2) 16M x 36 (2) 8M x 36 None 192MB (2) 16M x 36 (2) 4M x 36 (2) 4M x 36 200MB (2) 16M x 36 (2) 8M x 36 (2) 1M x 36 208MB (2) 16M x 36 (2) 8M x 36 (2) 2M x 36 224MB (2) 16M x 36 (2) 8M x 36 (2) 4M x 36 256MB (2) 16M x 36 (2) 16M x 36 None 256MB (2) 16M x 36 (2) 8M x 36 (2) 8M x 36 256MB (2) 32M x 36 None None 264MB (2) 16M x 36 (2) 16M x 36 (2) 1M x 36 264MB (2) 32M x 36 (2) 1M x 36 None 272MB (2) 16M x 36 (2) 16M x 36 (2) 2M x 36 272MB (2) 32M x 36 (2) 2M x 36 None 288MB (2) 16M x 36 (2) 16M x 36 (2) 4M x 36 288MB (2) 32M x 36 (2) 4M x 36 None 320MB (2) 16M x 36 (2) 16M x 36 (2) 8M x 36 320MB (2) 32M x 36 (2) 8M x 36 None 384MB (2) 16M x 36 (2) 16M x 36 (2) 16M x 36 384MB (2) 32M x 36 (2) 16M x 36 None 512MB (2) 32M x 36 (2) 32M x 36 None Note: Board accepts EDO memory. CACHE CONFIGURATION Note: 256KB/512KB cache is located on the Pentium Pro CPU. CPU SPEED SELECTION Speed S1/1 S1/2 S1/3 S1/4 150MHz On On Off Off 166MHz Off On Off Off 180MHz On Off On Off 200MHz Off Off On Off 233MHz Off On On Off 266MHz Off Off Off On