UNIDENTIFIED VL-486 Processor 80486SX/80487SX/ODP487SX/80486DX/80486DX2 Processor Speed 25/33/50(internal)/50/66(internal)MHz Chip Set UMC Video Chip Set None Maximum Onboard Memory 32MB Maximum Video Memory None Cache 128/256KB BIOS AMI Dimensions 254mm x 218mm I/O Options 32-bit VESA local bus slots (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery BATT Turbo switch CN4 Power LED & keylock CN1 Turbo LED CN5 Speaker CN2 Auxiliary keyboard KBD connector Reset switch CN3 32-bit VESA local bus SL1 & SL2 slots USER CONFIGURABLE SETTINGS Function Label Position Battery type select internal BATT Pins 2 & 3 closed Battery type select external BATT Closed CMOS memory clear BATT Pins 3 & 4 closed Monitor type select color C/M Closed Monitor type select monochrome C/M Open DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (4) 256K x 9 None 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 None 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 None 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 Note: The location of banks 0 & 1 is unidentified. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 None (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JS3 JS4 JS5 JS6 128KB Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed closed 256KB Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed CPU SPEED SELECTION Speed JC2 JC3 JF2 JF3 JF5 25MHz Open 2 & 3 Closed Closed Open 33MHz Open 2 & 3 Open Closed Closed 50iMHz Open 2 & 3 Closed Closed Open 50MHz Closed 1 & 2 Open Open Open 66iMHz Open 2 & 3 Open Closed Closed Note: Pins designated should be in the closed position. CPU TYPE SELECTION Type JC5 JC6 80486SX Pins 2 & 3 closed Open 80487SX Pins 1 & 2, 3 & 4 Pins 2 & 3 closed closed ODP487SX Pins 1 & 2, 3 & 4 Pins 2 & 3 closed closed 80486DX Pins 1 & 2, 3 & 4 Pins 1 & 2 closed closed 80486DX2 Pins 1 & 2, 3 & 4 Pins 1 & 2 closed closed VL BUS WAIT STATE SELECTION Setting J2 » 0 Open 1 Closed VL BUS SPEED SELECTION Speed J1 <= 33MHz Open >33 MHz Closed