DTK COMPUTER, INC. PEM-2030B Processor 80386SX Processor Speed 20MHz Chip Set Unidentified Max. Onboard DRAM 16MB (on external memory card) Cache None BIOS Unidentified Dimensions 330mm x 218mm I/O Options External memory card (PEM-3303) NPU Options 80387SX [Image] CONNECTIONS Purpose Location Purpose Location Serial port CN1 Power LED & keylock J4 Serial port CN2 Speaker J5 Parallel port CN3 Reset switch J6 External battery J1 External memory card SL1 Turbo LED J3 USER CONFIGURABLE SETTINGS Function Jumper Position Parallel port enabled SW2 pins 5 & Open 6 Parallel port disabled SW2 pins 5 & Closed 6 Parallel port LPT select LPT1 SW2 pins 7 & Open 8 Parallel port LPT select LPT2 SW2 pins 7 & Closed 8 Parallel port IRQ select IRQ7 SW3 pins 7 & 8 closed Parallel port IRQ select IRQ5 SW3 pins 5 & 6 closed 8-bit memory I/O wait state W1 pins 1 & 2 select 4 wait states closed 8-bit memory I/O wait state W1 pins 2 & 3 select 5 wait states closed 16-bit memory I/O wait state W2 pins 1 & 2 select 1 wait states closed 16-bit memory I/O wait state W2 pins 2 & 3 select 2 wait states closed CPU speed control 8MHz W3 pins 1 & 2 closed CPU speed control keyboard W3 pins 2 & 3 control closed CPU speed control 20MHz W3 Open Monitor type select monochrome W4 pins 1 & 2 closed Monitor type select color W4 pins 2 & 3 closed NPU disabled W5 pins 1 & 2 closed NPU enabled W5 pins 2 & 3 closed BIOS type select 27128 W6 pins 1 & 2 closed BIOS type select 27256 W6 pins 2 & 3 closed Note: The location of W6 is unidentified. DRAM CONFIGURATION Note: DRAM is located on the external memory card. DRAM JUMPER CONFIGURATION Size SW1 2MB pins 1 & 2, 3 & 4, 5 & 6 closed 4MB pins 3 & 4, 5 & 6 closed 8MB pins 5 & 6 closed 16MB Open SERIAL PORT CONFIGURATION Setting SW2 SW3 COM1 pins 1 & 2 closed pins 1 & 2 closed COM2 pins 2 & 3 closed pins 2 & 3 closed