UNIDENTIFIED 80386SX-16/20/25 Processor 80386SX Processor Speed 16/20/25MHz Chip Set C & T Max. Onboard DRAM 16MB Cache None BIOS AMI/C & T Dimensions 230mm x 220mm I/O Options None NPU Options 80387SX [Image] CONNECTIONS Purpose Location Purpose Location Auxiliary keyboard J4 Turbo LED J20 External battery J5 Turbo switch J21 Power LED & keylock J18 Reset switch J22 Speaker J19 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select monochrome JP1 pins 2 & 3 closed Monitor type select color JP1 pins 1 & 2 closed » Battery select internal JP2 pins 1 & 2 closed Battery select external JP2 pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 512KB (2) 256K x 9 NONE NONE NONE 1MB (2) 256K x 9 (2) 256K x 9 NONE NONE 1.5MB (2) 256K x 9 (2) 256K x 9 (2) 256K x 9 NONE 2MB (2) 256K x 9 (2) 256K x 9 (2) 256K x 9 (2) 256K x 9 2MB (2) 1M x 9 NONE NONE NONE 3MB (2) 256K x 9 (2) 256K x 9 (2) 1M x 9 NONE 4MB (2) 1M x 9 (2) 1M x 9 NONE NONE 5MB (2) 256K x 9 (2) 256K x 9 (2) 1M x 9 (2) 1M x 9 6MB (2) 1M x 9 (2) 1M x 9 (2) 1M x 9 NONE 8MB (2) 1M x 9 (2) 1M x 9 (2) 1M x 9 (2) 1M x 9 9MB (2) 256K x 9 (2) 256K x 9 (2) 4M x 9 NONE 10MB (2) 1M x 9 (2) 4M x 9 NONE NONE 16MB (2) 4M x 9 (2) 4M x 9 NONE NONE