UNIDENTIFIED POWERSPEC (VER. 2) Processor CX486S/80486SX/ODP486SX/80486DX/80486DX2/ODP486DX2 Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set Unidentified Video Chip Set None Maximum Onboard Memory 64MB Maximum Video Memory None Cache 32/64/128/256KB BIOS AMI Dimensions 254mm x 218mm I/O Options 32-bit VESA local bus slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery JP21 Turbo switch JP25 Power LED & keylock JP22 Reset switch JP26 Speaker JP23 32-bit VESA local SL1 – SL3 bus slots Turbo LED JP24 USER CONFIGURABLE SETTINGS Function Label Position Battery type select internal JP1 Closed Battery type select external JP1 Open DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 1MB (4) 256K x 9 None None 2MB (4) 256K x 9 (1) 256K x 36 None 2MB (4) 256K x 9 None (1) 256K x 36 2MB None (1) 256K x 36 (1) 256K x 36 2MB None (1) 512K x 36 None 3MB (4) 256K x 9 (1) 256K x 36 (1) 256K x 36 3MB (4) 256K x 9 (1) 512K x 36 None 3MB None (1) 512K x 36 (1) 256K x 36 4MB (4) 1M x 9 None None 4MB None (1) 512K x 36 (1) 512K x 36 5MB (4) 1M x 9 (1) 256K x 36 None 5MB None (1) 1M x 36 (1) 256K x 36 5MB (4) 256K x 9 None (1) 1M x 36 6MB (4) 1M x 9 (1) 256K x 36 (1) 256K x 36 6MB (4) 256K x 9 (1) 1M x 36 (1) 256K x 36 6MB (4) 256K x 9 (1) 256K x 36 (1) 1M x 36 6MB None (1) 512K x 36 (1) 1M x 36 7MB (4) 1M x 9 (1) 512K x 36 (1) 256K x 36 8MB (4) 1M x 9 (1) 1M x 36 None 8MB None (1) 1M x 36 (1) 1M x 36 9MB (4) 1M x 9 (1) 1M x 36 (1) 256K x 36 9MB (4) 256K x 9 (1) 1M x 36 (1) 1M x 36 10MB (4) 1M x 9 (1) 512K x 36 (1) 1M x 36 12MB (4) 1M x 9 (1) 1M x 36 (1) 1M x 36 12MB (4) 1M x 9 (1) 2M x 36 None 12MB None (1) 2M x 36 (1) 1M x 36 13MB (4) 256K x 9 (1) 2M x 36 (1) 1M x 36 13MB (4) 1M x 9 (1) 2M x 36 (1) 256K x 36 16MB (4) 4M x 9 None None 16MB (4) 1M x 9 (1) 2M x 36 (1) 1M x 36 16MB None (1) 2M x 36 (1) 2M x 36 17MB (4) 4M x 9 (1) 256K x 36 None 17MB (4) 256K x 9 None (1) 4M x 36 18MB (4) 4M x 9 (1) 256K x 36 (1) 256K x 36 18MB (4) 256K x 9 (1) 4M x 36 (1) 256K x 36 19MB (4) 4M x 9 (1) 512K x 36 (1) 256K x 36 20MB (4) 4M x 9 (1) 1M x 36 None DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 20MB (4) 1M x 9 None (1) 4M x 36 21MB (4) 256K x 9 (1) 4M x 36 (1) 1M x 36 21MB (4) 1M x 9 (1) 256K x 36 (1) 4M x 36 21MB (4) 4M x 9 (1) 256K x 36 (1) 1M x 36 22MB (4) 4M x 9 (1) 512K x 36 (1) 1M x 36 24MB (4) 4M x 9 (1) 1M x 36 (1) 1M x 36 24MB (4) 1M x 9 (1) 4M x 36 (1) 1M x 36 24MB None (1) 2M x 36 (1) 4M x 36 25MB (4) 256K x 9 (1) 2M x 36 (1) 4M x 36 25MB (4) 4M x 9 (1) 2M x 36 (1) 256K x 36 28MB (4) 4M x 9 (1) 2M x 36 (1) 1M x 36 28MB (4) 1M x 9 (1) 2M x 36 (1) 4M x 36 32MB (4) 4M x 9 (1) 4M x 36 None 32MB None (1) 4M x 36 (1) 4M x 36 33MB (4) 256K x 9 (1) 4M x 36 (1) 4M x 36 33MB (4) 4M x 9 (1) 4M x 36 (1) 256K x 36 34MB (4) 4M x 9 (1) 512K x 36 (1) 4M x 36 36MB (4) 1M x 9 (1) 4M x 36 (1) 4M x 36 36MB (4) 4M x 9 (1) 4M x 36 (1) 1M x 36 40MB (4) 4M x 9 (1) 2M x 36 (1) 4M x 36 48MB (4) 4M x 9 (1) 4M x 36 (1) 4M x 36 64MB (4) 16M x 9 None None Note: Banks 1 & 2 are interchangeable. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 32KB (4) 8K x 8 None (1) 8K x 8 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 None (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 16K/32K x 8 CACHE JUMPER CONFIGURATION Size JP15 JP16 JP17 JP19 JP20 32KB 2 & 3 Open Open Open Open 64KB 1 & 2 Open Open Closed Open 128KB 2 & 3 2 & 3 Closed Closed Open 256KB 1 & 2 1 & 2 Closed Closed Closed Note: Pins designated should be in the closed position. CACHE TAG CONFIGURATION Size JP27 8K x 8 Pins 1 & 2 closed 16K x 8 Pins 2 & 3 closed 32K x 8 Pins 1 & 2 closed CPU SPEED SELECTION Speed JP2 JP3 JP4 JP7 JP18 20MHz Open Open Open 1 & 2 Open 25MHz Closed Open Open 1 & 2 Open 33MHz Closed Closed Closed 1 & 2 Open 40MHz Closed Closed Open 2 & 3 Closed 50iMHz Closed Open Open 1 & 2 Open 50MHz Open Open Closed 2 & 3 Closed 66iMHz Closed Closed Closed 1 & 2 Open Note: Pins designated should be in the closed position. CPU TYPE SELECTION Type JP6 JP9 JP11 JP12 JP14 CX486S Open Open 2 & 3 2 & 3 Open CX486S+CX83D87 1 & 2 1 & 2 1 & 2, 3 1 & 2 2 & 3 & 4 80486SX Open Open 2 & 3 2 & 3 Open ODP486SX Open 2 & 3 1 & 2, 3 2 & 3 Open & 4 80486DX Open 1 & 2 1 & 2, 3 2 & 3 Open & 4 80486DX2 Open 1 & 2 1 & 2, 3 2 & 3 Open & 4 ODP486DX2 Open 2 & 3 1 & 2, 3 2 & 3 Open & 4 Note: Pins designated should be in the closed position.