
AMPTRON INTERNATIONAL, INC.

DX-6900 VER. 1.9

Processor  AM486SX/80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/
           AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set   Unidentified
Max.       64MB
Onboard
DRAM
Cache      64/128/256/512/1024KB
BIOS       AMI
Dimensions 254mm x 218mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  External battery          JP1       Reset switch                JP20

  Power LED & keylock       JP15      Turbo switch                JP22

  Speaker                   JP18      Green PC connector          JP23

  Turbo LED                 JP19      32-bit VESA local bus    SL1 - SL3
                                      slots

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery type select internal            JP1             Closed

      Battery type select external            JP1           pins 2 & 3
                                                              closed

      CMOS memory clear                       JP1           pins 3 & 4
                                                              closed

     Factory configured - do not             JP2           pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP3              Open
      alter

     Factory configured - do not             JP31             Open
      alter

     Factory configured - do not             JP36            Closed
      alter

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       1MB         (4) 256K x 9         NONE            NONE

       1MB             NONE        (1) 256K x 36        NONE

       2MB         (4) 256K x 9    (1) 256K x 36        NONE

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

       2MB             NONE        (1) 512K x 36        NONE

       3MB         (4) 256K x 9    (1) 256K x 36    (1) 256K x 36

       3MB             NONE        (1) 256K x 36    (1) 512K x 36

       3MB             NONE        (1) 512K x 36    (1) 256K x 36

       4MB          (4) 1M x 9          NONE            NONE

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

       4MB             NONE         (1) 1M x 36         NONE

       5MB         (4) 256K x 9     (1) 1M x 36         NONE

       5MB          (4) 1M x 9     (1) 256K x 36        NONE

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

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

       6MB         (4) 256K x 9    (1) 256K x 36     (1) 1M x 36

       6MB          (4) 1M x 9     (1) 256K x 36    (1) 256K x 36

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

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

       8MB          (4) 1M x 9      (1) 1M x 36         NONE

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

       8MB             NONE         (1) 2M x 36         NONE

       9MB          (4) 1M x 9     (1) 256K x 36     (1) 1M x 36

       9MB          (4) 1M x 9      (1) 1M x 36     (1) 256K x 36

       9MB             NONE        (1) 256K x 36     (1) 2M x 36

       9MB             NONE         (1) 2M x 36     (1) 256K x 36

      10MB             NONE        (1) 512K x 36     (1) 2M x 36

      10MB             NONE         (1) 2M x 36     (1) 512K x 36

      12MB          (4) 1M x 9      (1) 1M x 36      (1) 1M x 36

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

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

      16MB          (4) 4M x 9          NONE            NONE

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

      16MB             NONE         (1) 4M x 36         NONE

                    DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1          Bank 2

      17MB         (4) 256K x 9     (1) 4M x 36         NONE

      17MB          (4) 4M x 9     (1) 256K x 36        NONE

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

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

      18MB         (4) 256K x 9    (1) 256K x 36     (1) 4M x 36

      18MB         (4) 256K x 9     (1) 1M x 36     (1) 256K x 36

      18MB         (4) 256K x 9     (1) 4M x 36     (1) 256K x 36

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

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

      20MB          (4) 1M x 9      (1) 4M x 36         NONE

      20MB          (4) 4M x 9      (1) 1M x 36         NONE

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

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

      21MB         (4) 256K x 9     (1) 1M x 36      (1) 4M x 36

      21MB         (4) 256K x 9     (1) 4M x 36      (1) 1M x 36

      21MB          (4) 1M x 9     (1) 256K x 36     (1) 4M x 36

      21MB          (4) 1M x 9      (1) 4M x 36     (1) 256K x 36

      24MB          (4) 1M x 9      (1) 1M x 36      (1) 4M x 36

      24MB          (4) 1M x 9      (1) 4M x 36      (1) 1M x 36

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

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

      32MB          (4) 4M x 9      (1) 4M x 36         NONE

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

      32MB             NONE         (1) 8M x 36         NONE

      33MB         (4) 256K x 9     (1) 4M x 36      (1) 4M x 36

      33MB             NONE        (1) 256K x 36     (1) 8M x 36

      33MB             NONE         (1) 8M x 36     (1) 256K x 36

      34MB             NONE        (1) 512K x 36     (1) 8M x 36

      34MB             NONE         (1) 8M x 36     (1) 512K x 36

      36MB          (4) 1M x 9      (1) 4M x 36      (1) 4M x 36

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

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

      40MB             NONE         (1) 2M x 36      (1) 8M x 36

      40MB             NONE         (1) 8M x 36      (1) 2M x 36

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

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

      64MB         (4) 16M x 9          NONE            NONE

      64MB             NONE         (1) 16M x 36        NONE

      64MB             NONE             NONE        (1) 16M x 36

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

                      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

     256KB        (4) 64K x 8        NONE        (1) 32K x 8

     512KB        (4) 64K x 8     (4) 64K x 8    (1) 32K x 8

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

      1MB        (4) 128K x 8    (4) 128K x 8    (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

         Size                     JP5                      JP10

         64KB              pins 2 & 3 closed         pins 2 & 3 closed

         128KB             pins 1 & 2 closed         pins 1 & 2 closed

         256KB             pins 2 & 3 closed         pins 2 & 3 closed

         256KB              pins 1 & 2, 3 & 4        pins 1 & 2 closed
                                 closed

         512KB              pins 2 & 3, 4 & 5        pins 2 & 3 closed
                                 closed

         512KB           pins 1 & 2, 3 & 4, 5 &      pins 1 & 2 closed
                                6 closed

          1MB            pins 2 & 3, 4 & 5, 6 &      pins 2 & 3 closed
                                7 closed

       CACHE JUMPER CONFIGURATION (CONT)

   Size      JP11     JP12      JP13      JP14

   64KB      Open     Open      Open      Open

  128KB      Open     Open      Open     Closed

  256KB      Open     Open     Closed    Closed

  256KB      Open     Open     Closed    Closed

  512KB      Open    Closed    Closed    Closed

  512KB      Open    Closed    Closed    Closed

   1MB      Closed   Closed    Closed    Closed

                          CPU TYPE CONFIGURATION

        Type             JP27         JP28         JP29          JP30

       AM486SX           Open         2 & 3        Open          Open

       80486SX           Open         2 & 3        Open          Open

       CX486DX           2 & 3      1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6     4, 5 & 6          5

       AM486DX           Open         2 & 3        Open          Open

       80486DX           Open         2 & 3        Open          Open

      SL80486DX         1 & 2, 3      1 & 2        1 & 2         5 & 6
                          & 4

      CX486DX2           2 & 3      1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6     4, 5 & 6          5

    CX486DX2V-80         2 & 3      1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6     4, 5 & 6          5

      AM486DX2           Open         2 & 3        Open          Open

      80486DX2           Open         2 & 3        Open          Open

     SL80486DX2         1 & 2, 3      1 & 2        1 & 2         5 & 6
                          & 4

      AM486DX4           Open         2 & 3        Open          Open

      80486DX4          1 & 2, 3      1 & 2        1 & 2         5 & 6
                          & 4

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

      Type          JP32          JP33           JP34           JP35

    AM486SX         Open          2 & 3         Closed         Closed

    80486SX         Open          2 & 3         Closed         Closed

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

    AM486DX         1 & 2       1 & 2, 3 &      Closed         Closed
                                    4

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

   SL80486DX        1 & 2       1 & 2, 3 &       Open          Closed
                                    4

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

  CX486DX2V-80      1 & 2       1 & 2, 3 &       Open           Open
                                    4

    AM486DX2        1 & 2       1 & 2, 3 &      Closed         Closed
                                    4

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

   SL80486DX2       1 & 2       1 & 2, 3 &       Open          Closed
                                    4

    AM486DX4        1 & 2       1 & 2, 3 &       Open          Closed
                                    4

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

  Note: Pins designated should be in the closed position.

          CPU SPEED CONFIGURATION

   Speed      JP6        JP7        JP8

   25MHz      Open       Open     Closed

   33MHz     Closed     Closed    Closed

   40MHz      Open      Closed    Closed

  50iMHz      Open       Open     Closed

   50MHz     Closed      Open      Open

  66iMHz     Closed     Closed    Closed

  75iMHz      Open       Open     Closed

  100iMHz    Closed     Closed    Closed

                         CPU VOLTAGE CONFIGURATION

     Voltage             JP24               JP25               JP26

       3.3v            pins 1 & 2        pins 1 & 2         pins 1 & 2
                        closed             closed             closed

        4v             pins 1 & 2        pins 1 & 2         pins 1 & 2
                        closed             closed             closed

        5v             pins 2 & 3        pins 2 & 3         pins 2 & 3
                        closed             closed             closed

  VESA WAIT STATE CONFIGURATION

   Wait states         JP16

  0 wait states        Open

  1 wait state        Closed

            BUS SPEED CONFIGURATION

       CPU speed                  JP17

        <= 33MHz                  Open

        > 33MHz                  Closed

  Note: The location of JP17 is unidentified.

