NEC TECHNOLOGIES, INC. POWERMATE 425/433/466 Processor 80486SX/80487DX/80486DX/80486DX2 Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set C & T Max. Onboard DRAM 64MB Cache NONE BIOS NEC Dimensions 330mm x 218mm I/O Options Floppy drive interface, IDE interface, multifunction connector (PS/2 mouse, PS/2 keyboard, power LED), parallel port, proprietary ISA riser card slot, serial port, VGA port NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Proprietary riser JA-1 Speaker JP11 card connector Floppy drive J1 Mutifunction P1 interface connector IDE interface J2 Parallel port P2 IDE interface LED JP6 Serial port P3 External battery JP9 VGA port P4 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Parallel port (P2) select JP13 pins 1 & 2 LPT1/IRQ7 (378-37Fh) closed Parallel port (P2) select JP13 pins 2 & 3 LPT1/IRQ5 (278-27Fh) closed » Flash BIOS programmable via JP14 pins 1 & 2 network disabled closed Flash BIOS programmable via JP14 pins 2 & 3 network enabled closed » Onboard video enabled SW1/1 Off Onboard video disabled SW1/1 On » Floppy interface (J1) enabled SW1/2 Off Floppy interface (J1) SW1/2 On disabled » System password enabled SW1/3 Off System password disabled & SW1/3 On cleared » Flash BIOS write enabled SW1/4 Off Flash BIOS write disabled SW1/4 On DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (1) 1M x 36 NONE NONE NONE 5MB (1) 1M x 36 (1) 256K x NONE NONE 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x NONE 36 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 9MB (1) 1M x 36 (1) 1M x 36 (1) 256K x NONE 36 10MB (1) 1M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 13MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 256K x 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 4M x 36 NONE NONE NONE 17MB (1) 4M x 36 (1) 256K x NONE NONE 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x NONE 36 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20MB (1) 4M x 36 (1) 1M x 36 NONE NONE 21MB (1) 4M x 36 (1) 1M x 36 (1) 256K x NONE 36 22MB (1) 4M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 25MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 256K x 36 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 33MB (1) 4M x 36 (1) 4M x 36 (1) 256K x NONE 36 34MB (1) 4M x 36 (1) 4M x 36 (1) 256K x (1) 256K x 36 36 36MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 NONE 37MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 256K x 36 40MB (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 49MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 256K x 36 52MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 CPU TYPE CONFIGURATION Type JP1 JP2 JP12 80486SX PQFP pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 80486SX PGA pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed 80487SX PGA pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 80486DX PGA pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed 80486DX2 PGA pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed CPU SPEED CONFIGURATION Clock Speed JP15 25/50i MHz pins 1 & 2 closed 33/66i MHz pins 2 & 3 closed