
DTK COMPUTER, INC.

PKM-0038S (VER. 3)

Processor  CX486S/80486SX/SL80486SX/CX486DX/AM486DXL/80486DX/
           SL80486DX/AM486(PLUS)/AM486DXL2/CX486DX2/AM486DX2(PLUS)/80486DX2/SL80486DX2/80486DX4/P24D/P24T
Processor  20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz
Speed
Chip Set   Unidentified
Video Chip None
Set
Maximum    128MB
Onboard
Memory
Maximum    None
Video
Memory
Cache      128/256/512KB
BIOS       Award
Dimensions 260mm x 220mm
I/O        32-bit VESAI slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  External battery            J1       Reset switch                J6

  Green PC connector          J2       Power LED & keylock         J7

  Turbo switch                J3       Green PC connector         JP26

  Turbo LED                   J4       Green PC LED               JP27

  Speaker                     J5       32-bit VESA local bus   SL1 - SL3
                                       slots

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

     CMOS memory normal operation              JP16         Pins 1 & 2
                                                              closed

      CMOS memory clear                         JP16         Pins 2 & 3
                                                              closed

     Monitor type select                       JP17           Open
      monochrome/EGA/VGA

      Monitor type select CGA                   JP17          Closed

     CPU clock delay select CLKIN delayed      JP20         Pins 2 & 3
      for CPUCLK                                              closed

      CPU clock delay select CLKIN =            JP20         Pins 1 & 2
      CPUCLK                                                  closed

     Factory configured - do not alter         JP32         Pins 1 & 2
                                                              closed

     Factory configured - do not alter         JP35         Pins 2 & 3
                                                              closed

     Keyboard clock select asynchronous        JPX1           Open
      mode

      Keyboard clock select synchronous         JPX1          Closed
      mode

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2          Bank 3

     1MB         (1) 256K x       None           None            None
                    36

     2MB         (1) 256K x     (1) 256K x       None            None
                    36             36

     2MB         (1) 512K x       None           None            None
                    36

     4MB         (1) 256K x     (1) 256K x     (1) 512K x        None
                    36             36             36

     4MB         (1) 512K x     (1) 512K x       None            None
                    36             36

     4MB        (1) 1M x 36       None           None            None

     5MB         (1) 256K x    (1) 1M x 36       None            None
                    36

     6MB         (1) 256K x     (1) 256K x    (1) 1M x 36        None
                    36             36

     6MB         (1) 512K x    (1) 1M x 36       None            None
                    36

     8MB         (1) 256K x     (1) 256K x     (1) 512K x    (1) 1M x 36
                    36             36             36

     8MB         (1) 512K x     (1) 512K x    (1) 1M x 36        None
                    36             36

     8MB        (1) 1M x 36    (1) 1M x 36       None            None

     8MB        (1) 2M x 36       None           None            None

     10MB        (1) 256K x     (1) 256K x    (1) 1M x 36    (1) 1M x 36
                    36             36

     12MB        (1) 512K x     (1) 512K x    (1) 1M x 36    (1) 1M x 36
                    36             36

     12MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        None

     12MB       (1) 1M x 36    (1) 2M x 36       None            None

     16MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

     16MB       (1) 4M x 36       None           None            None

     16MB       (1) 2M x 36    (1) 2M x 36       None            None

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     16MB        (1) 1M x 36    (1) 1M x 36    (1) 2M x 36       None

     17MB         (1) 256K x    (1) 4M x 36       None           None
                     36

     18MB         (1) 256K x     (1) 256K x    (1) 4M x 36       None
                     36             36

     18MB         (1) 512K x    (1) 4M x 36       None           None
                     36

     20MB         (1) 512K x     (1) 512K x    (1) 4M x 36       None
                     36             36

     20MB        (1) 1M x 36    (1) 4M x 36       None           None

     20MB        (1) 1M x 36    (1) 2M x 36    (1) 2M x 36       None

     24MB         (1) 512K x     (1) 512K x    (1) 1M x 36   (1) 4M x 36
                     36             36

     24MB        (1) 1M x 36    (1) 1M x 36    (1) 4M x 36       None

     24MB        (1) 2M x 36    (1) 2M x 36    (1) 2M x 36       None

     24MB        (1) 1M x 36    (1) 1M x 36    (1) 2M x 36   (1) 2M x 36

     24MB        (1) 2M x 36    (1) 4M x 36       None           None

     28MB        (1) 1M x 36    (1) 2M x 36    (1) 2M x 36   (1) 2M x 36

     32MB        (1) 4M x 36    (1) 4M x 36       None           None

     32MB        (1) 8M x 36       None           None           None

     32MB        (1) 2M x 36    (1) 2M x 36    (1) 4M x 36       None

     32MB        (1) 2M x 36    (1) 2M x 36    (1) 2M x 36   (1) 2M x 36

     36MB         (1) 512K x     (1) 512K x    (1) 4M x 36   (1) 4M x 36
                     36             36

     36MB        (1) 1M x 36    (1) 4M x 36    (1) 4M x 36       None

     36MB        (1) 1M x 36    (1) 8M x 36       None           None

     40MB        (1) 1M x 36    (1) 1M x 36    (1) 4M x 36   (1) 4M x 36

     40MB        (1) 1M x 36    (1) 1M x 36    (1) 8M x 36       None

     40MB        (1) 2M x 36    (1) 2M x 36    (1) 2M x 36   (1) 4M x 36

     48MB        (1) 4M x 36    (1) 4M x 36    (1) 4M x 36       None

     48MB        (1) 4M x 36    (1) 8M x 36       None           None

     48MB        (1) 2M x 36    (1) 2M x 36    (1) 4M x 36   (1) 4M x 36

     48MB        (1) 2M x 36    (1) 2M x 36    (1) 8M x 36       None

     64MB        (1) 4M x 36    (1) 4M x 36    (1) 4M x 36   (1) 4M x 36

     64MB        (1) 16M x 36      None           None           None

     64MB        (1) 4M x 36    (1) 4M x 36    (1) 8M x 36       None

     64MB        (1) 8M x 36    (1) 8M x 36       None           None

     65MB         (1) 256K x    (1) 16M x 36      None           None
                     36

     68MB        (1) 1M x 36    (1) 16M x 36      None           None

     68MB        (1) 1M x 36    (1) 8M x 36    (1) 8M x 36       None

     72MB        (1) 1M x 36    (1) 1M x 36     (1) 16M x        None
                                                   36

     72MB        (1) 1M x 36    (1) 1M x 36    (1) 8M x 36   (1) 8M x 36

     80MB        (1) 4M x 36    (1) 16M x 36      None           None

     80MB        (1) 4M x 36    (1) 8M x 36    (1) 8M x 36       None

     80MB        (1) 2M x 36    (1) 2M x 36    (1) 8M x 36   (1) 8M x 36

     96MB        (1) 4M x 36    (1) 4M x 36     (1) 16M x        None
                                                   36

     96MB        (1) 4M x 36    (1) 4M x 36    (1) 8M x 36   (1) 8M x 36

     96MB        (1) 8M x 36    (1) 8M x 36    (1) 8M x 36       None

     128MB       (1) 16M x 36   (1) 16M x 36      None           None

     128MB       (1) 8M x 36    (1) 8M x 36    (1) 8M x 36   (1) 8M x 36

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

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

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

   256KB (B)      (4) 64K x 8        None        (1) 32K x 8

     512KB       (4) 128K x 8        None        (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

     Size         JP1         JP2         JP3         JP4         JP33

    128KB        1 & 2       1 & 2      1 & 2, 3     1 & 2       2 & 3
                                          & 4

  256KB (A)      2 & 3       2 & 3      2 & 3, 4     1 & 2       2 & 3
                                          & 5

  256KB (B)      1 & 2       2 & 3      1 & 2, 3     1 & 2       1 & 2
                                          & 4

    512KB        1 & 2       2 & 3      1 & 2, 3     2 & 3       2 & 3
                                          & 4

       CPU SPEED SELECTION (AV9107)

   Speed      JP5        JP6        JP7

   20MHz     Closed      Open     Closed

   25MHz     Closed     Closed     Open

   33MHz      Open      Closed    Closed

   40MHz     Closed      Open      Open

  50iMHz     Closed     Closed     Open

   50MHz      Open       Open     Closed

  66iMHz      Open      Closed    Closed

  75iMHz     Closed     Closed     Open

  80iMHz     Closed      Open      Open

  100iMHz     Open      Closed    Closed

       CPU SPEED SELECTION (MX8315)

   Speed      JP5        JP6        JP7

   20MHz      Open       Open      Open

   25MHz      Open      Closed     Open

   33MHz     Closed     Closed    Closed

   40MHz      Open      Closed    Closed

  50iMHz      Open      Closed     Open

   50MHz     Closed      Open      Open

  66iMHz     Closed     Closed    Closed

  75iMHz      Open      Closed     Open

  80iMHz      Open      Closed    Closed

  100iMHz    Closed     Closed    Closed

                            CPU TYPE SELECTION

       Type           JP8       JP10       JP11        JP12       JP13

      CX486S         2 & 3      2 & 3      Open      2 & 3, 4     Open
                                                       & 5

     80486SX         2 & 3      2 & 3      Open        Open       Open

    SL80486SX        2 & 3      2 & 3      Open       3 & 4       1 & 2

     CX486DX         1 & 2,     2 & 3      3 & 4      2 & 3       Open
                     3 & 4

     AM486DXL        1 & 2,     2 & 3     1 & 2, 3     Open       Open
                     3 & 4                  & 4

     80486DX         1 & 2,     2 & 3      3 & 4       Open       Open
                     3 & 4

    SL80486DX        1 & 2,     2 & 3      3 & 4      3 & 4       1 & 2
                     3 & 4

  AM486DX (PLUS)     1 & 2,     2 & 3      3 & 4      3 & 4       4 & 5
                     3 & 4

    AM486DXL2        1 & 2,     2 & 3     1 & 2, 3     Open       Open
                     3 & 4                  & 4

     CX486DX2        1 & 2,     2 & 3      3 & 4      2 & 3       Open
                     3 & 4

  AM486DX2 (PLUS)    1 & 2,     2 & 3      3 & 4      3 & 4       4 & 5
                     3 & 4

     80486DX2        1 & 2,     2 & 3      3 & 4       Open       Open
                     3 & 4

    SL80486DX2       1 & 2,     2 & 3      3 & 4      3 & 4       1 & 2
                     3 & 4

     80486DX4        1 & 2,     2 & 3      3 & 4      3 & 4       1 & 2
                     3 & 4

       P24D          1 & 2,     1 & 2      3 & 4     1 & 2, 3     2 & 3
                     3 & 4                             & 4

       P24T          1 & 2,     1 & 2      2 & 3      3 & 4       Open
                     3 & 4

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (CONT)

       Type          JP14        JP15       JP21       JP22       JP24

      CX486S        1 & 2, 3    2 & 3      1 & 2      2 & 3       2 & 3
                      & 4

     80486SX         Open        Open      2 & 3      1 & 2       Open

    SL80486SX        2 & 3      4 & 5      2 & 3      1 & 2       Open

     CX486DX         1 & 2      2 & 3      1 & 2      2 & 3       2 & 3

     AM486DXL        Open        Open      1 & 2      2 & 3       3 & 4

     80486DX         Open        Open      2 & 3      1 & 2       Open

    SL80486DX        2 & 3      4 & 5      2 & 3      1 & 2       Open

  AM486DX (PLUS)     2 & 3      4 & 5      1 & 2      1 & 2       Open

    AM486DXL2        Open        Open      1 & 2      2 & 3       3 & 4

     CX486DX2        1 & 2      2 & 3      1 & 2      2 & 3       2 & 3

  AM486DX2 (PLUS)    2 & 3      4 & 5      1 & 2      1 & 2       Open

     80486DX2        Open        Open      2 & 3      1 & 2       Open

    SL80486DX2       2 & 3      4 & 5      2 & 3      1 & 2       Open

     80486DX4        2 & 3      4 & 5      2 & 3      1 & 2       Open

       P24D          2 & 3      4 & 5      1 & 2      1 & 2       Open

       P24T          2 & 3      1 & 2      1 & 2      1 & 2       1 & 2

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (CONT)

       Type          JP25       JP30        JP31      JP34        JP36

      CX486S        2 & 3       Open        Open      1 & 2      Closed

     80486SX         Open       Open        Open      Open       Closed

    SL80486SX        Open       Open        Open      1 & 2      Closed

     CX486DX        2 & 3       Open        Open      1 & 2      Closed

     AM486DXL        Open       Open        Open      2 & 3      Closed

     80486DX         Open       Open        Open      Open       Closed

    SL80486DX        Open       Open        Open      1 & 2      Closed

  AM486DX (PLUS)    1 & 2       Open       2 & 3      1 & 2      Closed

    AM486DXL2        Open       Open        Open      2 & 3      Closed

     CX486DX2       2 & 3       Open        Open      1 & 2      Closed

     AM486DX2       1 & 2       Open       2 & 3      1 & 2      Closed
      (PLUS)

     80486DX2        Open       Open        Open      Open       Closed

    SL80486DX2       Open       Open        Open      1 & 2      Closed

     80486DX4       3 & 4       Open        Open      1 & 2       Open

       P24D         1 & 2      Closed      1 & 2      1 & 2      Closed

       P24T         1 & 2       Open        Open      1 & 2      Closed

  Note: Pins designated should be in the closed position.

                        VL BUS WAIT STATE SELECTION

               Setting                                JP28

                    0                          Pins 1 & 2 closed

                   1                          Pins 2 & 3 closed

                          VL BUS SPEED SELECTION

                Setting                                JP29

                  <= 33MHz                      Pins 1 & 2 closed

                 >33 MHz                       Pins 2 & 3 closed

