SPRING CIRCLE COMPUTER, INC. MDX340C/FOREX386 Processor 80386DX Processor Speed 33/40MHz Chip Set Forex Max. Onboard DRAM 32MB Cache 32/64/128KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit 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 32-bit external S1 memory card 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 » Factory configured - do not alter JP6 N/A » External battery select 6.0VDC JP200 Open External battery select 3.6VDC JP200 Closed » 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 Tag (U15) Tag (U16) 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