DELL COMPUTER CORPORATION SYSTEM V486/XX REV. 1 Processor 80486SX/80486DX/80486DX2/Overdrive Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set Opti Max. Onboard DRAM 32MB Cache 64/256KB BIOS AMI Dimensions 330mm x 218mm NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Turbo LED J9 Speaker J21 External battery J18 Power LED and keylock J22 Turbo Switch J20 USER CONFIGURABLE SETTINGS Function Jumper Position » Battery type select - internal W1 Closed Battery type select - external W1 Open » CMOS memory normal operation W2 pins 1 & 2 closed CMOS memory clear W2 pins 2 & 3 closed » Factory configured - do not W3 pins 2 & 3 alter closed » Factory configured - do not W4 pins 2 & 3 alter closed » Monitor type select color W12 pins 1 & 2 closed Monitor type select monochrome W12 pins 2 & 3 closed » Factory configured - do not W13 Open alter DRAM CONFIGURATION Size Bank 0 Bank 1 4MB (4) 1M x 9 NONE 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 64KB (8) 16K x4 256KB (8) 32K x 8 CACHE JUMPER CONFIGURATION Size W8 W9 W10 0KB Open Open Open 64KB pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed 256KB pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed CPU TYPE SELECT CPU type W5 W6 W7 486SX pins 2 & 3 pins 2 & 3 Open closed closed 487SX pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 486DX pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed 486DX2 pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed Overdrive pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed