UNIDENTIFIED 386CM Processor 80386DX Processor Speed 25MHz Chip Set Intel Max. Onboard DRAM 16MB Cache 32KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options None NPU Options 80387DX/3167 [Image] CONNECTIONS Purpose Location Purpose Location External battery BC1 Reset switch J19 Power LED & keylock J17 Speaker J20 USER CONFIGURABLE SETTINGS Function Jumper Position » NPU synchronous with CPU JP1 pins 1 & 2 closed NPU asynchronous with CPU JP1 pins 2 & 3 closed » BIOS type select 27512 JP4 pins 1 & 2 closed BIOS type select 27256 JP4 pins 2 & 3 closed » Non-cacheable region select JP5 pins 1 & 2 0E0000-0FFFFF (27512) closed Non-cacheable region select JP5 pins 2 & 3 0F0000-0FFFFF (27256) closed » NPU disabled JP6 pins 1 & 2 closed NPU enabled JP6 pins 2 & 3 closed » NPU disabled JP8 pins 1 & 2 closed NPU enabled JP8 pins 2 & 3 closed » 32-bit memory access wait state JP10 pins 1 & 2 select 4 wait states closed 32-bit memory access wait state JP10 pins 2 & 3 select 3 wait states closed » Turbo speed enabled J21 Open Turbo speed disabled J21 Closed » 32-bit memory RAS# & CAS# T state JP25 pins 1 & 2 select 1 T state closed 32-bit memory RAS# & CAS# T state JP25 pins 2 & 3 select 0.5 T state closed » Monitor type select color SW2 pins 1 & 2 closed Monitor type select monochrome SW2 pins 2 & 3 closed DRAM CONFIGURATION Size Extended Bank 0 Bank 1 Bank 2 Bank 3 1MB 0KB (4) 256K NONE NONE NONE x 9 1MB 384KB (4) 256K NONE NONE NONE x 9 2MB 1408KB (4) 256K (4) 256K NONE NONE x 9 x 9 3MB 2432KB (4) 256K (4) 256K (4) 256K NONE x 9 x 9 x 9 4MB 3456KB (4) 256K (4) 256K (4) 256K (4) 256K x 9 x 9 x 9 x 9 4MB 3456KB (4) 1M x NONE NONE NONE 9 5MB 4480KB (4) 1M x (4) 256K NONE NONE 9 x 9 6MB 5504KB (4) 1M x (4) 256K (4) 256K NONE 9 x 9 x 9 7MB 6528KB (4) 1M x (4) 256K (4) 256K (4) 256K 9 x 9 x 9 x 9 8MB 7552KB (4) 1M x (4) 1M x NONE NONE 9 9 9MB 8576KB (4) 1M x (4) 1M x (4) 256K NONE 9 9 x 9 10MB 9600KB (4) 1M x (4) 1M x (4) 256K (4) 256K 9 9 x 9 x 9 12MB 10624KB (4) 1M x (4) 1M x (4) 1M x NONE 9 9 9 12MB 11648KB (4) 1M x (4) 1M x (4) 1M x NONE 9 9 9 13MB 12672KB (4) 1M x (4) 1M x (4) 1M x (4) 256K 9 9 9 x 9 16MB 13696KB (4) 1M x (4) 1M x (4) 1M x (4) 1M x 9 9 9 9 16MB 14720KB (4) 1M x (4) 1M x (4) 1M x (4) 1M x 9 9 9 9 DRAM JUMPER CONFIGURATION Size SW4/1 SW4/2 SW4/3 SW4/4 1MB On On On On 1MB Off On On On 2MB On Off On On 3MB Off Off On On 4MB On On Off On 4MB On On Off On 5MB Off On Off On 6MB On Off Off On 7MB Off Off Off On 8MB On On On Off 9MB Off On On Off 10MB On Off On Off 12MB Off Off On Off 12MB On On Off Off 13MB Off On Off Off 16MB On Off Off Off 16MB Off Off Off Off Note:The location of SW4 is unidentified. CACHE CONFIGURATION Size Bank 0 0KB NONE 32KB (4) 8K x 8 Note: The location of the cache bank is unidentified CACHE JUMPER CONFIGURATION Size JP2 JP3 JP22 0KB pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed 32KB pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed DMA MODE CONFIGURATION Mode JP7 JP9 Normal (processor holds on all DMA & pins 1 & 2 pins 1 & 2 refresh cycles) closed closed Bypass (processor holds on cache DMA pins 2 & 3 pins 2 & 3 invalidation cycles only) closed closed