JC INFORMATION SYSTEMS CORPORATION MODEL 2020 Processor 80386DX Processor Speed 25/33MHz Chip Set C & T PEAK/DM Max. Onboard DRAM 32MB Cache 64KB BIOS C & T/Phoenix Dimensions 330mm x 218mm I/O Options 32-bit external memory card slot NPU Options 80387 [Image] CONNECTIONS Purpose Location Purpose Location External battery J4 Speaker SPK Power LED & keylock KEYL Self test TEST Reset switch RSW Turbo LED TLED 32-bit external memory S1 Turbo switch TSW card USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not alter W2 open » Factory configured - do not alter W3 pins 1 & 2 closed » Factory configured - do not alter W6 closed » Factory configured - do not alter W9 pins 2 & 3 closed » CMOS memory normal operation W10 pins 2 & 3 closed CMOS memory clear W10 pins 1 & 2 closed » Monitor type select color W11 closed Monitor type select monochrome W11 open Note:The locations of W2, W3, W6, and W9 are unknown. DRAM CONFIGURATION Size Bank 0 Bank 1 W4 1MB (4) 256K x 9 NONE pins 1 & 2 closed 2MB (4) 256K x 9 (4) 256K x 9 pins 1 & 2 closed 4MB (4) 1M x 9 NONE pins 1 & 2 closed 5MB (4) 1M x 9 (4) 256K x 9 pins 2 & 3 closed 8MB (4) 1M x 9 (4) 1M x 9 pins 1 & 2 closed 16MB (4) 4M x 9 NONE pins 1 & 2 closed 32MB (4) 4M x 9 (4) 4M x 9 pins 1 & 2 closed CACHE CONFIGURATION Size Cache CACHE Location TAG 64KB (8) 8K x 8 CACHE (2) 16K x 1