UNIDENTIFIED NT-386/CT Processor 80386DX Processor Speed 16/20/25/33MHZ Chip Set C & T Peak/DM Max. onboard DRAM 32MB Cache 32/64/128/256KB BIOS Unknown Dimensions 330mm x 218mm I/O Options 32-bit external memory card NPU Options 80387DX/3167 [Image] CONNECTIONS Purpose Location Purpose Location External battery JP5 Turbo switch JP28 Power LED & keylock JP21 Reset switch JP29 Speaker JP24 32-bit external S1 memory card Turbo LED JP25 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Monitor type select color JP3 Closed Monitor type select JP3 Open monochrome » NPU synchronous with CPU JP26 Open NPU asynchronous JP26 Closed » Power good signal detect from JP27 pins 2 & 3 board closed Power good signal detect from JP27 pins 1 & 2 power supply closed » CMOS memory normal operation JP30 pins 2 & 3 closed CMOS memory clear JP30 pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 JP1 1MB (4) 256K NONE NONE NONE pins 1 & x 9 2 2MB (4) 256K (4) 256K NONE NONE pins 1 & x 9 x 9 2 3MB (4) 256K (4) 256K (4) 256K NONE pins 1 & x 9 x 9 x 9 2 4MB (4) 256K (4) 256K (4) 256K (4) 256K pins 1 & x 9 x 9 x 9 x 9 2 4MB (4) 1M x NONE NONE NONE pins 1 & 9 2 5MB (4) 256K (4) 1M x NONE NONE pins 2 & x 9 9 3 6MB (4) 256K (4) 256K (4) 1M x NONE pins 2 & x 9 x 9 9 3 8MB (4) 1M x (4) 1M x NONE NONE pins 1 & 9 9 2 10MB (4) 256K (4) 256K (4) 1M x (4) 1M x pins 2 & x 9 x 9 9 9 3 12MB (4) 1M x (4) 1M x (4) 1M x NONE pins 1 & 9 9 9 2 16MB (4) 1M x (4) 1M x (4) 1M x (4) 1M x pins 1 & 9 9 9 9 2 16MB (4) 4M x NONE NONE NONE pins 1 & 9 2 17MB (4) 256K (4) 4M x NONE NONE pins 2 & x 9 9 3 18MB (4) 256K (4) 256K (4) 4M x NONE pins 2 & x 9 x 9 9 3 20MB (4) 1M x (4) 4M x NONE NONE pins 2 & 9 9 3 24MB (4) 1M x (4) 1M x (4) 4M x NONE pins 2 & 9 9 9 3 32MB (4) 4M x (4) 4M x NONE NONE pins 1 & 9 9 2 33MB (4) 4M x (4) 4M x (4) 256K NONE pins 2 & 9 9 x 9 3 34MB (4) 4M x (4) 4M x (4) 256K (4) 256K pins 2 & 9 9 x 9 x 9 3 36MB (4) 4M x (4) 4M x (4) 1M x NONE pins 2 & 9 9 9 3 40MB (4) 1M x (4) 1M x (4) 4M x (4) 4M x pins 2 & 9 9 9 9 3 48MB (4) 4M x (4) 4M x (4) 4M x NONE pins 1 & 9 9 9 2 64MB (4) 4M x (4) 4M x (4) 4M x (4) 4M x pins 1 & 9 9 9 9 2 Note:Banks 2 & 3 are located on an optional 32-bit external memory card. Pins designated should be in the closed position. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 32KB (4) 8K x 8 NONE (2) 16K x 4 64KB (4) 8K x 8 (4) 8K x 8 (2) 16K x 4 128KB (4) 32K x 8 NONE (2) 64K x 4 256KB (4) 32K x 8 (4) 32K x 8 (2) 64K x 4 CACHE JUMPER CONFIGURATION Size JP6 JP7 JP8 JP9 32KB Open Closed Closed Closed 64KB Open pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed 128KB Closed pins 1 & 2 pins 1 & 2 pins 2 & 3 closed closed closed 256KB Closed pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed CACHE JUMPER CONFIGURATION Size JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 32KB Open Open Closed Open Closed Open 2 & Open 2 & Open 3 3 64KB Open Open Closed Closed Closed Open 2 & Open Open Closed 3 128KB Open Closed Open Closed Closed Open 1 & 1 & Open Closed 2 2 256KB Closed Closed Open Closed Open Closed 1 & 1 & 1 & Closed 2 2 2