
DTK COMPUTER, INC.

PKM-0038Y (VER. 1.00)

Processor              80486SX/80487SX/80486DX/80486DX2/P23T
Processor Speed        20/25/33/50(internal)/50/66(internal)MHz
Chip Set               Symphony
Video Chip Set         None
Maximum Onboard Memory 32MB
Maximum Video Memory   None
Cache                  64/128/256KB
BIOS                   AMI/DTK
Dimensions             252mm x 221mm
I/O Options            32-bit VESA local bus slots (2)
NPU Options            None

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  Power LED & keylock         J5        Turbo LED                  J8

  Speaker                     J6        Reset switch               J9

  Turbo switch                J7        32-bit VESA local      SL1 & SL2
                                        bus slots

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

     Factory configured - do not alter        J2             Closed

     Monitor type select monochrome          J26           Pins 1 & 2
                                                              closed

      Monitor type select color               J26           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         Bank 1          TAG

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

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

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

                        CACHE JUMPER CONFIGURATION

    Size           J13            J14            J15             J16

    None        Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
                 closed          closed         closed         closed

    64KB        Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
                 closed          closed         closed         closed

    128KB       Pins 1 & 2     Pins 2 & 3     Pins 1 & 2      Pins 2 & 3
                 closed          closed         closed         closed

    256KB       Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 1 & 2
                 closed          closed         closed         closed

                    CACHE JUMPER CONFIGURATION (CONT)

    Size           J17            J18            J19             J20

    None        Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
                 closed          closed         closed         closed

    64KB        Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
                 closed          closed         closed         closed

    128KB       Pins 2 & 3     Pins 2 & 3     Pins 2 & 3      Pins 2 & 3
                 closed          closed         closed         closed

    256KB       Pins 1 & 2     Pins 1 & 2     Pins 1 & 2      Pins 1 & 2
                 closed          closed         closed         closed

  CACHE WAIT STATE CONFIGURATION

  Setting       J1         J23

     0         Open       Closed

     1        Closed       Open

                            CPU SPEED SELECTION

     Speed           J21            J22           J24            J25

     20MHz        Pins 1 & 2       Open           Open           Open
                   closed

     25MHz        Pins 1 & 2       Open           Open           Open
                   closed

     33MHz        Pins 1 & 2       Open           Open           Open
                   closed

    50iMHz        Pins 1 & 2       Open           Open          Closed
                   closed

     50MHz        Pins 2 & 3      Closed         Closed         Closed
                   closed

    66iMHz        Pins 1 & 2       Open           Open           Open
                   closed

                            CPU TYPE SELECTION

       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

     80486DX2            Closed          Pins 1 & 2         Pins 1 & 2
                                           closed             closed

       P23T              Closed          Pins 1 & 2         Pins 2 & 3
                                           closed             closed

                        VL BUS WAIT STATE SELECTION

               Setting                                 J4

                     0                                Open

                    1                               Closed

                          VL BUS SPEED SELECTION

                 Speed                                  J3

                  <= 33MHz                             Open

                 >33 MHz                             Closed

