FOREX COMPUTER COMPANY 386 CACHE SYSTEM BOARD Processor 80386DX/AM386DX Processor Speed 33/40MHz Chip Set Forex Max. Onboard DRAM 64MB Cache 32/64/128KB BIOS AMI Dimensions 330mm x 218mm I/O Options external memory card slot NPU Options 80387/3167 [Image] CONNECTIONS Purpose Location Purpose Location External battery JP2 Speaker JP10 Turbo LED JP7 Turbo switch JP11 Reset switch JP8 External memory card S1 Power LED & keylock JP9 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color JP3 Open Monitor type select monochrome JP3 Closed » NPU mode select synchronous with JP5 pins 1 & 2 CPU closed NPU mode select synchronous with JP5 pins 2 & 3 oscillator installed at Y1 closed » External battery select 6.0VDC JP200 Open External battery select 3.6VDC JP200 Closed » Factory configured - do not alter JP201 N/A » CMOS memory normal operation JP202 Open CMOS memory clear JP202 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 1MB (4) 256K x 9 NONE NONE NONE 2MB (4) 256K x 9 (4) 256K x 9 NONE NONE 4MB (4) 1M x 9 NONE NONE NONE 5MB (4) 256K x 9 (4) 1M x 9 NONE NONE 6MB (4) 256K x 9 (4) 256K x 9 (4) 1M x 9 NONE 8MB (4) 1M x 9 (4) 1M x 9 NONE NONE 9MB (4) 256K x 9 (4) 1M x 9 (4) 1M x 9 NONE 12MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 NONE 16MB (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE NONE NONE 20MB (4) 1M x 9 (4) 4M x 9 NONE NONE 24MB (4) 1M x 9 (4) 1M x 9 (4) 4M x 9 NONE 32MB (4) 4M x 9 (4) 4M x 9 NONE NONE 36MB (4) 1M x 9 (4) 4M x 9 (4) 4M x 9 NONE 48MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 NONE 64MB (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 (4) 4M x 9 Note:Banks 2 & 3 are used when a 32-bit external memory card is installed. CACHE CONFIGURATION Size Bank 0 Bank 1 Tag1 Tag0 32KB (4) 8K x 8 NONE (1) 8K x 8 NONE 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 32K x 8 NONE CACHE JUMPER CONFIGURATION Size JP6 32KB pins 1 & 2 closed 64KB pins 2 & 3 closed 128KB pins 2 & 3 closed