ADVANCED COMPUTER TECHNOLOGY, LTD. T386-25 Processor 80386DX Processor Speed 25MHz Chip Set ACT Max. Onboard DRAM 16MB Cache None BIOS AMI Dimensions 330mm x 218mm I/O Options None NPU Options 80387/3167 [Image] CONNECTIONS Purpose Location Purpose Location Turbo LED JP3 External battery JP13 Power LED & Keylock JP7 Speaker JP16 Reset switch JP12 Turbo switch JP17 USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » BIOS type select 27512 JP6 pins 1 & 2 closed BIOS type select 27256 JP6 pins 2 & 3 closed » Monitor type select color JP8 pins 2 & 3 closed Monitor type select JP8 pins 1 & 2 monochrome closed » Battery select internal JP14 pins 2 & 3 closed Battery select external JP14 pins 1 & 2 closed » Power good signal detect JP15 pins 1 & 2 from power supply closed Power good signal detect JP15 pins 2 & 3 from board closed » Refresh timing select normal JP18 pins 1 & 2 closed Refresh timing select fast JP18 pins 2 & 3 closed » Parity check enabled JP19 pins 1 & 2 closed Parity check disabled JP19 pins 2 & 3 closed » Page mode select normal 1, 2 JP20 pins 1 & 2 wait state closed Page mode select page JP20 pins 2 & 3 interleave closed » SIMM wait state select 2 JP21 pins 2 & 3 wait states (non-page mode) closed SIMM wait state select 1 JP21 pins 1 & 2 wait state (non-page mode) closed » DIP RAM wait state select 2 JP22 pins 2 & 3 wait states (non-page mode) closed DIP RAM wait state select 1 JP22 pins 1 & 2 wait state (non-page mode) closed » Interleave factor banks 0-3 SW1/3 Off four way interleave disabled Interleave factor banks 0-3 SW1/3 On four way interleave enabled » Interleave factor banks 2 SW1/4 Off and 3 interleave disabled Interleave factor banks 2 SW1/4 On and 3 two way interleave enabled » Interleave factor banks 0 SW1/5 Off and 1 interleave disabled Interleave factor banks 0 SW1/5 On and 1 two way interleave enabled Note:SW1/switch 5 should be open if 1MB is installed, if memory is greater it should be closed. SW1/switch 4 should be closed if 10MB is installed. SW1/switch 3 should be closed if 4MB is installed. JP20 pins 1 & 2 must be closed if 4M x 9 SIMMs are used. DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 P-0 P-1 1MB (8) NONE NONE NONE (4) NONE 44256 41256 2MB (8) (8) NONE NONE (4) (4) 41256 44256 44256 41256 3MB (8) (8) (4) NONE (4) (4) 41256 44256 44256 256K x 41256 9 4MB (8) (8) (4) (4) (4) (4) 41256 44256 44256 256K x 256K x 41256 9 9 6MB (8) (8) (4) 1M NONE (4) (4) 41256 44256 44256 x 9 41256 10MB (8) (8) (4) 1M (4) 1M (4) (4) 41256 44256 44256 x 9 x 9 41256 16MB NONE NONE (4) 4M (4) 4M NONE NONE x 9 x 9 DRAM JUMPER/SWITCH CONFIGURATION Size SW1/6 SW1/7 SW1/8 JP23 1MB Off Off Off pins 2 & 3 closed 2MB Off Off On pins 2 & 3 closed 3MB Off On Off pins 2 & 3 closed 4MB Off On On pins 2 & 3 closed 6MB On On Off pins 2 & 3 closed 10MB On On On pins 2 & 3 closed 16MB Off Off Off pins 1 & 2 closed DRAM REFRESH RATE CONFIGURATION Size SW1/1 SW1/2 Refreshes per hold cycle Off Off select 1 Refreshes per hold cycle Off On select 2 Refreshes per hold cycle On Off select 4 Refreshes per hold cycle On On select 8 NPU TYPE CONFIGURATION Type JP2 JP4 80387 pins 1 & 2 closed pins 2 & 3 closed 3167 pins 2 & 3 closed pins 1 & 2 closed