DTK COMPUTER, INC.

PKM-0031Y (VER. 1.00)

Processor              80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed        16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set               Symphony
Max. Onboard DRAM      32MB
Cache                  64/256KB
BIOS                   AMI/DTK
Dimensions             330mm x 222mm
I/O Options            None
NPU Options            None

[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

  »   CPU speed select forced high             J2              Open

      CPU speed select switchable at           J2            pins 2 & 3
      keyboard                                                closed

  »   Cache write select 0 wait states         J9             Closed

      Cache write select 1 wait state          J9              Open

  »   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) 4M x 9     (4) 256K x 9

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

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

      80486DX            Closed           pins 1 & 2          Closed
                                           closed

      80486DX2           Closed           pins 1 & 2          Closed
                                           closed

                     CPU SPEED CONFIGURATION

   Speed       J14        J15        J16        J17       J18

   16MHz     Closed      Open       Open       1 & 2      Open

   20MHz     Closed      Open       Open       1 & 2      Open

   25MHz     Closed      Open       Open       1 & 2      Open

   33MHz     Closed      Open       Open       1 & 2      Open

  50iMHz     Closed      Open       Open       1 & 2      Open

   50MHz      Open      Closed      Open       2 & 3     Closed

  66iMHz     Closed      Open       Open       1 & 2      Open

  Note: Pins designated should be in the closed position.