CHICONY, INC. CH-486-33/50P Processor 80486SX/80487SX/80486DX/80486DX2/P23T/P24T Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set UMC Video Chip Set None Maximum Onboard Memory 32MB Maximum Video Memory None Cache 64/128/256KB 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 Power LED & keylock J1 Reset switch J5 Speaker J2 External battery J6 Turbo switch J3 32-bit VESA local bus SL1 & SL2 slots Turbo LED J4 USER CONFIGURABLE SETTINGS Function Label Position Monitor type select color W1 Closed Monitor type select monochrome W1 Open Battery type select internal W14 Closed Battery type select external W14 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 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG (U30) TAG (U31) 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 None 128KB (4) 32K x 8 None (1) 8K x 8 None 256KB (A) (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 None 256KB (B) (4) 32K x 8 (4) 32K x 8 (1) 8K x 8 (1) 8K x 8 CACHE JUMPER CONFIGURATION Size W6 W7 W8 W9 64KB Open Open Open Open 128KB Open Closed Open Closed 256KB (A) Closed Closed Closed Closed 256KB (B) Closed Closed Closed Closed CACHE JUMPER CONFIGURATION (CON’T) Size W10 W11 W12 W13 64KB Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed closed 128KB Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 Pins 2 & 3 closed closed closed closed 256KB (A) Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed 256KB (B) Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed CPU SPEED SELECTION Speed W15 W16 W17 W18 20MHz Closed Closed Closed Closed 25MHz Closed Open Open Closed 33MHz Open Open Open Closed 40MHz Closed Open Open Open 50iMHz Closed Open Open Closed 50MHz Open Open Open Open 66iMHz Open Open Open Closed CPU TYPE SELECTION Type W2 W3 80486SX Pins 2 & 3 closed Open 80487SX Pins 1 & 2, 3 & 4 Pins 1 & 2 closed closed 80486DX Pins 1 & 2, 3 & 4 Pins 2 & 3 closed closed 80486DX2 Pins 1 & 2, 3 & 4 Pins 2 & 3 closed closed P23T Pins 1 & 2, 3 & 4 Pins 1 & 2 closed closed P24T Pins 1 & 2, 3 & 4 Pins 2 & 3 closed closed VL BUS WAIT STATE SELECTION Setting W4 0 Open 1 Closed VL BUS SPEED SELECTION Speed W5 <= 33MHz Open >33 MHz Closed