DTK COMPUTER, INC.

PKM-0037Y (VER. 1.01)

Processor        80486SX/80487SX80486DX/ODP486SX/80486DX2
Processor Speed  20/25/33/50 (Internal)/50/66 (Internal)MHz
Chip Set         Symphony
Max. onboard DRAM32MB
Cache            64/128/256KB
BIOS             AMI/DTK
Dimensions       229mm x 221mm
I/O Options      None
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  Power LED & keylock          J1       Reset switch               J4

  Speaker                      J2       Turbo LED                  J5

  Turbo LED                    J3

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

  »   Monitor type select                    J8              pins 1 & 2
      monochrome                                               closed

      Monitor type select color              J8              pins 2 & 3
                                                               closed

  »   Cache write wait state                 J9                Closed
      select 0 wait states

      Cache write wait state                 J9                 Open
      select 1 wait state

              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

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

      16MB        (4) 4M x 9         NONE

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

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

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

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     64KB        (4) 8K x 8     (4) 8K x 8    (1) 8K x 8

     128KB      (4) 32K x 8        NONE       (1) 32K x 8

     256KB      (4) 32K x 8    (4) 32K x 8    (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

  Size     J14     J15     J16     J17      J18     J19     J20     J21

  64KB     1 & 2   1 & 2   1 & 2   1 & 2   1 & 2   1 & 2   1 & 2   1 & 2

  128KB    2 & 3   1 & 2   1 & 2   2 & 3   2 & 3   2 & 3   2 & 3   2 & 3

  256KB    2 & 3   2 & 3   2 & 3   1 & 2   1 & 2   1 & 2   1 & 2   1 & 2

  Note:Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

    Speed           J7            J10            J12             J13

    20MHz          Open           Open        pins 1 & 2         Open
                                                closed

    25Mhz          Open           Open        pins 1 & 2         Open
                                                closed

    33Mhz          Open           Open        pins 1 & 2         Open
                                                closed

   50i MHz        Closed          Open        pins 1 & 2         Open
                                                closed

    50MHz         Closed         Closed       pins 2 & 3        Closed
                                                closed

   66i MHz         Open           Open        pins 1 & 2         Open
                                                closed

                          CPU TYPE CONFIGURATION

      Type           J6            J11            J30            J31

  80486SX PGA      Closed          Open        pins 2 & 3        Open
                                                closed

  80486SX PQFP      Open           Open        pins 1 & 2        Open
                                                closed

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

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

  ODP486SX PGA     Closed       pins 1 & 2     pins 1 & 2     pins 1 & 2
                                  closed        closed          closed

  80486DX2 PGA     Closed       pins 1 & 2     pins 1 & 2     pins 1 & 2
                                  closed        closed          closed