GIGA-BYTE TECHNOLOGY CO., LTD. GA-686NX 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 (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, VRM connector, USB connector, ATX power connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location ATX power supply ATX Speaker J2 Serial port 2 CN1 Reset switch J3 Parallel port CN2 Power LED J4 PS/2 mouse port CN4 IDE interface LED J5 Serial port 1 CN5 IR connector J6 USB connector CN6 Green PC connector J7 IDE interface 2 CN7 Soft on power supply J8 IDE interface 1 CN8 Green PC LED J9 Floppy drive interface CN9 Chassis fan power JP1 VRM connector J1 32-bit PCI slots PC1 – PC4 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not JP2 Unidentified alter » Factory configured - do not JP4 Unidentified alter DRAM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 36 None 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 24MB (2) 2M x 36 (2) 1M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 40MB (2) 4M x 36 (2) 1M x 36 48MB (2) 4M x 36 (2) 2M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 128MB (2) 16M x 36 None 136MB (2) 16M x 36 (2) 1M x 36 144MB (2) 16M x 36 (2) 2M x 36 160MB (2) 16M x 36 (2) 4M x 36 192MB (2) 16M x 36 (2) 8M x 36 256MB (2) 16M x 36 (2) 16M x 36 256MB (2) 32M x 36 None 264MB (2) 32M x 36 (2) 1M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 272MB (2) 32M x 36 (2) 2M x 36 288MB (2) 32M x 36 (2) 4M x 36 320MB (2) 32M x 36 (2) 8M x 36 384MB (2) 32M x 36 (2) 16M x 36 512MB (2) 32M x 36 (2) 32M x 36 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