ACER, INC. CMPD4700ZIF Processor 80486DX/80486DX2 Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set Unidentified Video Chip Set None Maximum Onboard 32MB Memory Maximum Video None Memory Cache 64/128/256KB BIOS Unidentified Dimensions 254mm x 218mm I/O Options 32-bit VESA local bus slot, serial ports (2), game interface, parallel port, floppy drive interface, IDE interface NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery J2 Speaker J11 Serial port 2 J4 Reset switch J12 Serial port 1 J5 IDE interface LED J13 Game interface J6 Turbo switch J14 Parallel port J7 Turbo LED J15 Floppy drive J8 Power LED & keylock J16 interface IDE interface J9 32-bit VESA local bus SL1 slot USER CONFIGURABLE SETTINGS Function Label Position Battery type select internal W1 Closed Battery type select external W1 Open Monitor type select color W2 Closed Monitor type select monochrome W2 Open » Factory configured - do not alter W8 Pins 2 & 3 closed 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 5MB (4) 1M x 9 (4) 256K x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 None 17MB (4) 256K x 9 (4) 4M x 9 17MB (4) 4M x 9 (4) 256K x 9 20MB (4) 1M x 9 (4) 4M x 9 20MB (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 64KB (4) 8K x 8 (4) 8K x 8 128KB (4) 32K x 8 None 256KB (4) 32K x 8 (4) 32K x 8 CACHE TAG CONFIGURATION Size TAG 0 TAG 1 TAG 2 64KB None (1) 8K x 8 (1) 64K x 1 128KB None (1) 8K x 8 (1) 64K x 1 256KB (1) 8K x 8 (1) 8K x 8 (1) 64K x 1 CACHE JUMPER CONFIGURATION Size W4 W5 W6 W13 64KB Pins 2 & 3 Open Open Pins 2 & 3 closed closed 128KB Pins 1 & 2 Open Closed Pins 1 & 2 closed closed 256KB Pins 2 & 3 Closed Closed Pins 2 & 3 closed closed CACHE JUMPER CONFIGURATION (CON’T) Size W19 W20 W21 W22 64KB Open Open Open Open 128KB Open Open Open Closed 256KB Open Open Closed Closed CPU SPEED SELECTION Speed W14 W15 W16 20MHz Closed Open Open 25MHz Open Closed Closed 33MHz Open Closed Open 40MHz Open Open Closed 50iMHz Open Closed Closed 50MHz Open Closed Closed 66iMHz Open Closed Open CPU TYPE SELECTION Type W3 W7 W9 W17 W18 W23 W24 80486DX 1 & 2 1 & 2 1 & 2 2 & 3 1 & 2 Open 2 & 3 80486DX-50 1 & 2 2 & 3 1 & 2 2 & 3 1 & 2 Closed 2 & 3 80486DX2 1 & 2 1 & 2 1 & 2 2 & 3 1 & 2 Open 2 & 3 Note: Pins designated should be in the closed position. VL BUS WAIT STATE SELECTION Setting W11 0 Open 1 Closed VL BUS SPEED SELECTION Speed W10 W12 <= 33MHz Open Closed 40MHz Closed Open 50MHz Open Open