DTK COMPUTER, INC.

FEAT-3331

Processor         80486SX/80487SX/80486DX
Processor Speed   16/20/25/33MHz
Chip Set          Symphony
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI/DTK
Dimensions        254mm x 218mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Reset switch                J1       Turbo LED                   J4

  Turbo switch                J2       Power LED & keylock         J5

  Speaker                     J3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

      Turbo switch select normal speed         J2           pins 1 & 2
                                                              closed

      Turbo switch select turbo speed          J2              Open

      Turbo switch select through              J2           pins 2 & 3
      keyboard by pressing CTRL, ALT,                         closed
      -

  »   Cache wait state select 0 wait           J9             Closed
      states

      Cache wait state select 1 wait           J9              Open
      state

  »   Monitor type select monochrome          J13           pins 1 & 2
                                                              closed

      Monitor type select color               J13           pins 2 & 3
                                                              closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       NONE

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         NONE

      5MB         (4) 256K x 9    (4) 1M x 9

      5MB         (4) 1M x 9     (4) 256K x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

      17MB        (4) 256K x 9    (4) 4M x 9

      17MB        (4) 4M x 9     (4) 256K x 9

      20MB        (4) 1M x 9      (4) 4M x 9

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

            CACHE CONFIGURATION

     Size          Bank 0          TAG

     64KB        (8) 8K x 8    (1) 8K x 8

     256KB       (8) 32K x 8   (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

      Size               J6                 J7                 J8

      64KB            pins 1 & 2        pins 1 & 2      pins 1 & 2 closed
                       closed             closed

      256KB           pins 2 & 3        pins 2 & 3      pins 2 & 3 closed
                       closed             closed

                          CPU TYPE CONFIGURATION

       Type               J10               J11                J12

      80486SX            Open            pins 2 & 3           Open
                                          closed

      80487SX           Closed           pins 1 & 2         pins 2 & 3
                                          closed             closed

      80486DX           Closed           pins 1 & 2         pins 1 & 2
                                          closed             closed

         CPU SPEED CONFIGURATION

        Speed                J14

        16MHz         pins 2 & 3 closed

        20MHz         pins 2 & 3 closed

        25MHz         pins 2 & 3 closed

        33MHz         pins 1 & 2 closed