NEC TECHNOLOGIES, INC. POWERMATE EXPRESS 486SX/25TE, 486/33TE, 486/33TE(ENHANCED), 486/50TE, 486DX2/50TE, POM-2000 (NETT-2000) Processor 80486SX/80486DX/80486DX2 Processor Speed 25/33/50(internal)/50MHz Chip Set Unidentified Max. Onboard DRAM 256MB (224MB on external memory cards) Cache 128KB (location unidentified) BIOS Unidentified Dimensions 268mm x 224mm I/O Options External memory cards (2), CPU slot NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Speaker P1 Disk drive power P6 interface LED controller board P2 CPU slot SL1 Chassis fan power P5 External memory slots SL2-SL3 USER CONFIGURABLE SETTINGS Function Jumper Position » Test mode disabled (released J1 Out position) Test mode enabled (locked J1 In position) » Factory configured - do not JP1 Open alter » BIOS type select 28256 JP2 pins 1 & 2 closed BIOS type select 28512 JP2 pins 2 & 3 closed » Flash BIOS write enabled JP3 pins 1 & 2 closed Flash BIOS write disabled JP3 pins 2 & 3 closed » Password enabled JP4 pins 1 & 2 closed Password disabled JP4 pins 2 & 3 closed » Reset disabled JP5 Open Reset enabled JP5 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 8MB (2) 1M x 36 NONE NONE NONE 16MB (2) 1M x 36 (2) 1M x 36 NONE NONE 16MB (2) 1M x 36 (2) 1M x 36 NONE NONE 18MB (2) 1M x 36 (2) 1M x 36 (2) 256K x NONE 36 20MB (2) 1M x 36 (2) 1M x 36 (2) 256K x (2) 256K x 36 36 22MB (2) 1M x 36 (2) 1M x 36 (2) 256K x (2) 256K x 36 36 24MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 NONE 24MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 NONE 28MB (2) 1M x 36 (2) 1M x 36 (2) 256K x (2) 256K x 36 36 32MB (2) 4M x 36 NONE NONE NONE 32MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 32MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 34MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 36MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 38MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 40MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 40MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 48MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 50MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 52MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 64MB (2) 4M x 36 (2) 4M x 36 NONE NONE 64MB (2) 4M x 36 (2) 4M x 36 NONE NONE 64MB (2) 4M x 36 (2) 4M x 36 NONE NONE 72MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 NONE 72MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 NONE 80MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 80MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 82MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 84MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 86MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 88MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 88MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 96MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 NONE 96MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 104MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 112MB (2) 4M x 36 (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 128MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 160MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 192MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 224MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 256MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 Note: The orientation of Banks 0 & 1 are unidentified. Banks 2 - 7 are located on external memory cards. DRAM CONFIGURATION Size Bank 4 Bank 5 Bank 6 Bank 7 8MB NONE NONE NONE NONE 16MB NONE NONE NONE NONE 16MB NONE NONE NONE NONE 18MB NONE NONE NONE NONE 20MB NONE NONE NONE NONE 22MB (2) 256K x NONE NONE NONE 36 24MB NONE NONE NONE NONE 24MB NONE NONE NONE NONE 28MB (2) 256K x (2) 256K x (2) 256K x (2) 256K x 36 36 36 36 32MB NONE NONE NONE NONE 32MB NONE NONE NONE NONE 32MB NONE NONE NONE NONE 34MB (2) 256K x NONE NONE NONE 36 36MB (2) 256K x (2) 256K x NONE NONE 36 36 DRAM CONFIGURATION (CON’T) Size Bank 4 Bank 5 Bank 6 Bank 7 38MB (2) 256K x (2) 256K x (2) 256K x NONE 36 36 36 40MB (2) 1M x 36 NONE NONE NONE 40MB (2) 256K x (2) 256K x (2) 256K x (2) 256K x 36 36 36 36 48MB (2) 1M x 36 (2) 1M x 36 NONE NONE 50MB (2) 1M x 36 (2) 1M x 36 (2) 256K x NONE 36 52MB (2) 1M x 36 (2) 1M x 36 (2) 256K x (2) 256K x 36 36 64MB NONE NONE NONE NONE 64MB NONE NONE NONE NONE 64MB NONE NONE NONE NONE 72MB NONE NONE NONE NONE 72MB NONE NONE NONE NONE 80MB NONE NONE NONE NONE 80MB NONE NONE NONE NONE 82MB (2) 256K x NONE NONE NONE 36 84MB (2) 256K x (2) 256K x NONE NONE 36 36 86MB (2) 256K x (2) 256K x (2) 256K x NONE 36 36 36 88MB (2) 1M x 36 NONE NONE NONE 88MB (2) 256K x (2) 256K x (2) 256K x (2) 256K x 36 36 36 36 96MB NONE NONE NONE NONE 96MB (2) 1M x 36 (2) 1M x 36 NONE NONE 104MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 NONE 112MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 128MB NONE NONE NONE NONE 160MB (2) 4M x 36 NONE NONE NONE 192MB (2) 4M x 36 (2) 4M x 36 NONE NONE 224MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 NONE 256MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 Note: The orientation of Banks 0 & 1 are unidentified. Banks 2 - 7 are located on external memory cards. [Image] USER CONFIGURABLE SETTINGS Function Jumper Position » Test mode disabled 15A2 pins 1 & 2 closed Test mode enabled 15A2 pins 2 & 3 closed » Test mode disabled 15A3 pins 1 & 2 closed Test mode enabled 15A3 pins 2 & 3 closed [Image] [Image] MISCELLANEOUS TECHNICAL NOTE Note: The 486/33TE (enhanced) board has the same orientation as the 486/33TE. The 486DX2/50TE board has the same orientation as the 486/50TE.