
DTK COMPUTER, INC.

PLM-2531P/3331P/5031P

Processor        80486SX/80487SX/ODP80486SX/80486DX/80486DX2
Processor Speed  25/33/40/50(internal)/50/66(internal)MHz
Chip Set         OPTI
Max. Onboard DRAM128MB
Cache            64/128/256KB
BIOS             AMI/DTK
Dimensions       330mm x 218mm
I/O Options      None
NPU Options      4167

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Reset switch                J1       Speaker                     J4

  Turbo switch                J2       Power LED & keylock         J5

  Turbo LED                   J3       External battery            J12

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Turbo switch enabled                     J2             Closed

      turbo switch disabled                    J2              Open

     Monitor type select monochrome          J11              Open

      Monitor type select color               J11             Closed

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

      4MB        (4) 1M x 9       NONE

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

     16MB        (4) 4M x 9       NONE

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

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

     64MB        (4) 16M x 9      NONE

     128MB       (4) 16M x 9   (4) 16M x 9

                            CACHE CONFIGURATION

   Size     Bank 0   Bank 1      TAG       Dirty        TAG     TAG (U33)
                                (U30)      (U31)      (U32)

   64KB     (4) 8K   (4) 8K    (1) 8K x   (1) 8K x   (1) 8K x     NONE
             x 8      x 8         1          1          8

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

  256KB       (4)      (4)     (1) 8K x   (1) 8K x     NONE     (1) 32K x
             32K x    32K x       1          1                      8
              8        8

                        CACHE JUMPER CONFIGURATION

                Size                                 J10

                64KB                          pins 9 & 10 closed

               128KB                  pins 1 & 2, 5 & 6, 11 & 12 closed

               256KB                  pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9
                                                 & 10 closed

                        CPU TYPE CONFIGURATION

               Type                                J9

              80486SX                      pins 9 & 10 closed

              80487SX               pins 3 & 4, 5 & 6, 7 & 8 closed

            ODP80486SX              pins 3 & 4, 5 & 6, 7 & 8 closed

            80486DX/DX2             pins 1 & 2, 3 & 4, 5 & 6 closed

                          CPU SPEED CONFIGURATION

      Speed               J6                 J7                 J8

      25MHz            pins 2 & 3           Open              Closed
                        closed

      33MHz            pins 1 & 2          Closed              Open
                        closed

      40MHz            pins 2 & 3           Open              Closed
                        closed

      50iMHz           pins 2 & 3           Open              Closed
                        closed

      50MHz            pins 2 & 3           Open              Closed
                        closed

      66iMHz           pins 1 & 2          Closed              Open
                        closed

