DTK COMPUTER, INC.

GRAFIKA 3A

Processor         80386SX
Processor Speed   20MHz
Chip Set          C & T
Max. Onboard DRAM 5MB
Cache             None
BIOS              DTK
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                    Location   Purpose                  Location

  CPU frequency connector      J1       Turbo LED                  J5

  Power LED & keylock          J2       Reset switch               J6

  Turbo switch                 J3       External battery           J7

  Speaker                      J4

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   BIOS type select 27256                   W7           pins 1 & 2
                                                              closed

      BIOS type select 27128                   W7           pins 2 & 3
                                                              closed

  »   Pipeline mode enabled                    W8           pins 2 & 3
                                                              closed

      Pipeline mode disabled                   W8           pins 1 & 2
                                                              closed

  »   NPU disabled                             W9           pins 2 & 3
                                                              closed

      NPU enabled                              W9           pins 1 & 2
                                                              closed

  »   Power good signal detect from           W11           pins 2 & 3
      power supply                                            closed

      Power good signal detect from           W11           pins 1 & 2
      board                                                   closed

  »   Monitor type select monochrome          W12           pins 1 & 2
                                                              closed

      Monitor type select color               W12           pins 2 & 3
                                                              closed

  »   Battery type select external            W13           pins 1 & 2
                                                              closed

      Battery type select internal            W13           pins 2 & 3
                                                              closed

                            DRAM CONFIGURATION

   Size     Bank 0       P 0      Bank 1       P 1      Bank 2    Bank 3

  512KB       (4)        (2)       NONE       NONE       NONE      NONE
             44256      41256

  640KB       (4)        (2)      (4) 4164     (2)       NONE      NONE
             44256      41256                 41256

   1MB        (4)        (2)        (4)        (2)       NONE      NONE
             44256      41256      44256      41256

  1.5MB       (4)        (2)        (4)        (2)        (2)      NONE
             44256      41256      44256      41256     256K x
                                                          9

  2MB (A)     (4)        (2)        (4)        (2)        (2)       (2)
             44256      41256      44256      41256     256K x     256K x
                                                          9          9

  2MB (B)    NONE       NONE       NONE       NONE      (2) 1M     NONE
                                                         x 9

   3MB        (4)        (2)        (4)        (2)      (2) 1M     NONE
             44256      41256      44256      41256      x 9

   4MB       NONE       NONE       NONE       NONE      (2) 1M     (2) 1M
                                                         x 9        x 9

   5MB        (4)        (2)        (4)        (2)      (2) 1M     (2) 1M
             44256      41256      44256      41256      x 9        x 9

                         DRAM JUMPER CONFIGURATION

   Size        W1         W2        W3         W4        W5         W6

   512KB     1 & 2      1 & 2      1 & 2     1 & 2      1 & 2     1 & 2

   640KB     1 & 2      1 & 2      1 & 2     1 & 2      1 & 2     1 & 2

    1MB      1 & 2      1 & 2      1 & 2     1 & 2      1 & 2     1 & 2

   1.5MB     2 & 3      2 & 3      2 & 3     2 & 3      2 & 3     2 & 3

  2MB (A)    2 & 3      2 & 3      2 & 3     2 & 3      2 & 3     2 & 3

  2MB (B)    1 & 2      1 & 2      1 & 2     1 & 2      1 & 2     1 & 2

    3MB      2 & 3      2 & 3      2 & 3     2 & 3      2 & 3     2 & 3

    4MB      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

  Note: Pins designated should be in the closed position.