
DTK COMPUTER, INC.

FEAT-5031

Processor         80486SX/80487SX/80486DX/80486DX2
Processor Speed   16/20/25/33/50(internal)/50MHz
Chip Set          Symphony
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI/DTK
Dimensions        330mm x 218mm
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

      Turbo enabled                            J2              Open

      Turbo disabled                           J2           Pins 1 & 2
                                                              closed

      Turbo controlled by keyboard             J2           Pins 2 & 3
      CTRL, ALT, -                                            closed

     Cache wait state select 0 wait           J9             Closed
      states

     Cache wait state select 1 wait           J9              Open
      state

     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) 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          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

      80487SX              N/A               N/A               N/A

      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      Pins 1 & 2      Open
                                                    closed

   20MHz       Closed       Open        Open      Pins 1 & 2      Open
                                                    closed

   25MHz       Closed       Open        Open      Pins 1 & 2      Open
                                                    closed

   33MHz       Closed       Open        Open      Pins 1 & 2      Open
                                                    closed

   50iMHz      Closed       Open        Open      Pins 1 & 2     Closed
                                                    closed

  50MHz (A)    Closed      Closed      Closed     Pins 2 & 3     Closed
                                                    closed

  50MHz (B)     Open       Closed       Open      Pins 2 & 3     Closed
                                                    closed

  Note: (A) 20ns cache installed. (B) 15ns cache installed.

