NEC TECHNOLOGIES, INC. IMAGE 425/433/466 Processor 80486SX/80487DX/80486DX/ODP486SX/80486DX2 Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set C & T Max. Onboard 64MB DRAM Cache 256KB expandable BIOS Intel Dimensions 220mm x 220mm I/O Options Cache expansion slot, floppy drive interface, IDE interface, multifunction connector (PS/2 mouse, PS/2 keyboard, power LED), parallel port, proprietary ethernet slot SCSI interface, serial port (2, 1 optional), VGA port, VGA feature connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location IDE interface J7 Cache expansion slot J18 Floppy drive J8 Speaker (not used) JP1 interface VGA feature J9 Reset switch JP3 connector Optional disk power J12 Serial port 1 P1 supply External battery J13 Serial port 2 P2 (optional) IDE interface LED J14 VGA port P3 (not used) Proprietary J15 Parallel port P4 Ethernet slot Proprietary riser J16 Multifunction P5 card slot connector SCSI interface J17 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Factory configured do not JP2 Open alter » ROM emulation enabled JP4 Open ROM emulation disabled JP4 Closed » Onboard video enabled SW1/switch 1 Off Onboard video disabled SW1/switch 1 On » Floppy interface enabled SW1/switch 2 Off Floppy interface disabled SW1/switch 2 On » System password enabled SW1/switch 3 Off System password disabled SW1/switch 3 On » Flash BIOS write protect SW1/switch 4 Off enabled Flash BIOS write protect SW1/switch 4 On disabled » BIOS programming via network SW1/switch 5 Off enabled BIOS programming via network SW1/switch 5 On disabled » CPU speed select 25/50iMHz SW1/switch 6 On CPU speed select 33/66iMHz SW1/switch 6 Off DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 4MB (1) 1M x 36 NONE NONE NONE 5M (1) 1M x 36 (1) 256K x NONE NONE 36 6M (1) 1M x 36 (1) 256K x (1) 256K x NONE 36 36 7M (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 8M (1) 1M x 36 (1) 1M x 36 NONE NONE 9M (1) 1M x 36 (1) 1M x 36 (1) 256K x NONE 36 10M (1) 1M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 12M (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 NONE 13M (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 256K x 36 16M (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16M (1) 4M x 36 NONE NONE NONE 17M (1) 4M x 36 (1) 256K x NONE NONE 36 18M (1) 4M x 36 (1) 256K x (1) 256K x NONE 36 36 19M (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20M (1) 4M x 36 (1) 1M x 36 NONE NONE 21M (1) 4M x 36 (1) 1M x 36 (1) 256K x NONE 36 22M (1) 4M x 36 (1) 1M x 36 (1) 256K x (1) 256K x 36 36 24M (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 NONE 25M (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 256K x 36 28M (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32M (1) 4M x 36 (1) 4M x 36 NONE NONE 33M (1) 4M x 36 (1) 4M x 36 (1) 256K x NONE 36 36M (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 NONE 37M (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 256K x 36 40M (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 48M (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 NONE 49M (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 256K x 36 52M (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 1M x 36 64M (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36