DTK COMPUTER, INC.

PEM-2530

Processor          80386DX
Processor Speed    25MHz
Chip Set           VLSI
Max. Onboard DRAM  16MB (8MB on external memory card)
Cache              None
BIOS               DTK/Phoenix
Dimensions         333mm x 222mm
I/O Options        32-bit external memory card slot (PEI-306)
NPU Options        80387/3167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  Power LED & keylock        J1        32-bit external             S1
                                       memory card

  Reset switch               J2        Turbo switch                W4

  Speaker                    J3        Turbo LED                   W5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   DRAM (16-bit) speed select 2 wait        W2            pins 2 & 3
      state                                                   closed

      DRAM (16-bit) speed select 1 wait        W2            pins 1 & 2
      state                                                   closed

  »   DRAM (8-bit) speed select 5 wait         W3            pins 2 & 3
      state                                                   closed

      DRAM (8-bit) speed select 4 wait         W3            pins 1 & 2
      state                                                   closed

  »   CPU speed select fast                    W4              Open

      CPU speed select slow                    W4            pins 1 & 2
                                                              closed

      CPU speed switchable from                W4            pins 2 & 3
      keyboard                                                closed

  »   Monitor type select monochrome           W6            pins 1 & 2
                                                              closed

      Monitor type select color                W6            pins 2 & 3
                                                              closed

  »   NPU disabled                             W7            pins 2 & 3
                                                              closed

      NPU enabled                              W7            pins 1 & 2
                                                              closed

  »   BIOS type select 27256                   W8            pins 1 & 2
                                                              closed

      BIOS type select 27512                   W8            pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

       Size                  Bank 0                      Bank 1

       1MB                (2) 256K x 9                (2) 256K x 9

       2MB                (2) 512K x 9                (2) 512K x 9

       4MB                 (2) 1M x 9                  (2) 1M x 9

       8MB                (1) 1M x 36                 (1) 1M x 36

  Note:The 1M x 36 SIPPs are a proprietary DTK design that use two SIPP
  sockets.

                     DRAM JUMPER/SWITCH CONFIGURATION

   Size       SW1/1       SW1/2       SW1/3       SW1/4          W1

    1MB        On          On          On          On         pins 2 & 3
                                                               closed

    2MB        On          Off         On          On         pins 2 & 3
                                                               closed

    4MB        Off         On          On          Off        pins 1 & 2
                                                               closed

    8MB        Off         Off         Off         On         pins 1 & 2
                                                               closed