DATAEXPERT CORPORATION ATX431 Device Type Mainboard Processor CX 6X86/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX Processor Speed 90/100/120/133/150/166/200/233MHz Chip Set Intel 430TX Video Chip Set None Maximum Onboard 256MB (EDO & SDRAM supported) Memory Maximum Video MemoryNone Cache 512KB BIOS AMI Dimensions 305mm x 190mm I/O Options 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connectors (2), USB connectors (2), ATX power connector [Image] CONNECTIONS Purpose Location Purpose Location ATX power connector ATX IDE interface LED J3 Serial port 1 CN1 Reset switch J4 Parallel port CN2 Turbo LED J5 PS/2 mouse port CN3 IR connector J8 Serial port 2 CN4 CIR connector J9 IDE interface 1 CN5 USB connector 1 J10 IDE interface 2 CN6 USB connector 2 J11 Floppy drive interface CN7 32-bit PCI slots PC1 – PC4 Power LED & keylock J1 Soft off power supply SW1 Speaker J2 USER CONFIGURABLE SETTINGS Function Label Position » Flash BIOS voltage select 5v JP3 Pins 2 & 3 closed Flash BIOS voltage select 12v JP3 Pins 1 & 2 closed » CMOS memory normal operation JP6 Closed CMOS memory clear JP6 Open SIMM 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 SIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 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 Note: Board accepts EDO memory. DIMM CONFIGURATION Size Bank 2 Bank 3 8MB (1) 1M x 64 None 16MB (1) 2M x 64 None 16MB (1) 1M x 64 (1) 1M x 64 24MB (1) 2M x 64 (1) 1M x 64 32MB (1) 4M x 64 None 32MB (1) 2M x 64 (1) 2M x 64 40MB (1) 4M x 64 (1) 1M x 64 48MB (1) 4M x 64 (1) 2M x 64 64MB (1) 8M x 64 None 64MB (1) 4M x 64 (1) 4M x 64 72MB (1) 8M x 64 (1) 1M x 64 80MB (1) 8M x 64 (1) 2M x 64 96MB (1) 8M x 64 (1) 4M x 64 128MB (1) 16M x 64 None 128MB (1) 8M x 64 (1) 8M x 64 136MB (1) 16M x 64 (1) 1M x 64 144MB (1) 16M x 64 (1) 2M x 64 160MB (1) 16M x 64 (1) 4M x 64 192MB (1) 16M x 64 (1) 8M x 64 256MB (1) 16M x 64 (1) 16M x 64 Note: Board accepts SDRAM memory. CACHE CONFIGURATION Size Bank 0 512KB (2) 64K x 32