DTK COMPUTER, INC. PEM-2500 Processor 80386DX Processor Speed 25MHz Chip Set VLSI Max. Onboard DRAM 16MB (8MB on external memory card) Cache 64/256KB BIOS AMI/Award/DTK/Phoenix Dimensions 351mm x 306mm I/O Options 32-bit external memory card slot NPU Options 80387/3167 [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock J1 Turbo LED J4 Reset switch J2 Turbo switch J5 Speaker J3 32-bit external S15 memory card USER CONFIGURABLE SETTINGS Function Jumper/Switch Position » Expansion bus (8-bit) speed W11 pins 1 & 2 select 7 wait states closed Expansion bus (8-bit) speed W11 pins 2 & 3 select 5 wait states closed » Expansion bus (16-bit) speed W12 pins 1 & 2 select 3 wait states closed Expansion bus (16-bit) speed W12 pins 2 & 3 select 1 wait states closed » DMA & I/O speed select W13 pins 1 & 2 6/12MHz respectively closed DMA & I/O speed select 3/6MHz W13 pins 2 & 3 respectively closed » NPU disabled W14 Closed NPU enabled W14 Open » Monitor type select SW1/6 Off monochrome Monitor type select color SW1/6 On DRAM CONFIGURATION Size Bank 0 P-0 Bank 1 P-1 Bank 2 Bank 3 1MB (8) (4) NONE NONE NONE NONE 44256 41256 1MB NONE NONE NONE NONE NONE (4) 256K x 9 2MB (8) (4) (8) (4) NONE NONE 44256 41256 44256 41256 2MB (8) (4) NONE NONE NONE (4) 44256 41256 256K x 9 2MB NONE NONE (8) (4) NONE (4) 44256 41256 256K x 9 4MB (8) (4) (8) (4) (12) NONE 411000 411000 411000 411000 411000 4MB NONE NONE NONE NONE NONE (4) 1M x 9 5MB (8) (4) NONE NONE NONE (4) 1M 44256 41256 x 9 8MB (8) (4) (8) (4) (12) (4) 1M 411000 411000 411000 411000 411000 x 9 DRAM JUMPER CONFIGURATION Size W1 W2 W3 W4 W5 W6 W7 W8 1MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 1MB 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 2 & 3 2 & 3 2MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 4MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 1 & 2 1 & 2 4MB 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 5MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 1 & 2 8MB 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 1 & 2 1 & 2 Note:Pins designated should be in the closed position. DRAM SWITCH CONFIGURATION Size SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 1MB On On On On On 1MB On On On On On 2MB On On On On On 4MB On On Off On Off 4MB On On Off On Off 5MB Off On On Off On 8MB Off On Off Off Off CACHE CONFIGURATION Size Bank 0 TAG 64KB (8) 16K x 4 (2) 16K x 4 256KB (8) 64K x 4 (2) 64K x 4 CACHE JUMPER CONFIGURATION Size W9 W10 64KB pins 1 & 2 closed pins 1 & 2 closed 256KB pins 2 & 3 closed pins 2 & 3 closed