
AMPTRON INTERNATIONAL, INC.

DX-6900 VER. 1.75

Processor  AM486SX/80486SX/CX486DX/AM486DX/IBM486DX/TI486DX/80486DX/
           SL80486DX/CX486DX2/AM486DX2/IBM486DX2/TI486DX2/80486DX2/
           SL80486DX2/CX486DX4/AM486DX4/IBM486DX4/80486DX4/AM5X86
Processor  25/33/40/50(internal)/50/66(internal)/80(internal)/100(internal)/120(internal)/133(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           Pins 2 & 3
                                                              closed

      Battery type select external            JP1             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             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) 512K x 36        None

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

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

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

       3MB             None        (1) 256K x 36    (1) 512K 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) 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             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             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             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) 4M x 36         None

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

      17MB         (1) 4M x 36     (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

                    DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1          Bank 2

      18MB          (4) 4M x 9     (1) 256K 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             None         (1) 1M x 36      (1) 4M x 36

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

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

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

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

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

      32MB             None         (1) 8M x 36         None

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

      33MB          (4) 4M x 9     (1) 256K 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             None         (1) 1M x 36      (1) 8M x 36

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

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

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

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

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

      64MB         (4) 16M x 9          None            None

      64MB             None         (1) 16M x 36        None

      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 (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 (A)      (4) 64K x 8     (4) 64K x 8    (1) 32K x 8

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

      1MB        (4) 128K x 8    (4) 128K x 8    (1) 64K x 8

                        CACHE JUMPER CONFIGURATION

   Size       JP5     JP10       JP11       JP12       JP13       JP14

   64KB      2 & 3    2 & 3      Open       Open       Open       Open

  128KB      1 & 2    1 & 2      Open       Open       Open      Closed

   256KB     2 & 3    2 & 3      Open       Open      Closed     Closed
   (A)

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

   512KB     2 & 3,   2 & 3      Open      Closed     Closed     Closed
   (A)       4 & 5

   512KB     1 & 2,   1 & 2      Open      Closed     Closed     Closed
   (B)       3 & 4,
             5 & 6

   1MB       2 & 3,   2 & 3     Closed     Closed     Closed     Closed
             4 & 5,
             6 & 7

  Note: Pins designated should be in the closed position.

                          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

      IBM486DX          2 & 3       1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6      4, 5 & 6         5

       TI486DX          2 & 3       1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6      4, 5 & 6         5

       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

    CX486DX2-V80        2 & 3       1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6      4, 5 & 6         5

      AM486DX2           Open         2 & 3         Open         Open

   AM486DX2(3.3v)        Open         2 & 3         Open         Open

      IBM486DX2         2 & 3       1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6      4, 5 & 6         5

      TI486DX2          2 & 3       1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6      4, 5 & 6         5

      80486DX2           Open         2 & 3         Open         Open

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

     CX486DX4-GP        2 & 3       1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6      4, 5 & 6         5

    CX486DX4-GP4      1 & 2, 3 &    1 & 2, 4 &   1 & 2, 4 &    3 & 4, 5 &
                          4             5            5             6

   AM486DX4 (3.3v)       Open         2 & 3         Open         Open

    AM486DX4 (8B)     1 & 2, 3 &    1 & 2, 4 &   1 & 2, 4 &    3 & 4, 5 &
                          4             5            5             6

    IBM486DX4-GC        2 & 3       1 & 2, 3 &   1 & 2, 3 &    2 & 3, 4 &
                                    4, 5 & 6      4, 5 & 6         5

    IBM486DX4-GIC     1 & 2, 3 &    1 & 2, 4 &   1 & 2, 4 &    3 & 4, 5 &
                          4             5            5             6

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

     AM5X86-133       1 & 2, 3 &    1 & 2, 4 &   1 & 2, 4 &    3 & 4, 5 &
                          4             5            5             6

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

        Type          JP31       JP32      JP33       JP34        JP35

      AM486SX         Open       Open     2 & 3      Closed      Closed

      80486SX         Open       Open     2 & 3      Closed      Closed

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

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

      IBM486DX        Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

      TI486DX         Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

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

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

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

    CX486DX2-V80      Open      1 & 2     1 & 2,      Open        Open
                                          3 & 4

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

   AM486DX2(3.3v)     Open      1 & 2     1 & 2,     Closed      Closed
                                          3 & 4

     IBM486DX2        Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

      TI486DX2        Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

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

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

    CX486DX4-GP       Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

    CX486DX4-GP4      Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

  AM486DX4 (3.3v)     Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

   AM486DX4 (8B)      Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

    IBM486DX4-GC      Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

   IBM486DX4-GIC      Open      1 & 2     1 & 2,      Open       Closed
                                          3 & 4

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

     AM5X86-133       2 & 3     1 & 2     1 & 2,      Open       Closed
                                          3 & 4

  Note: Pins designated should be in the closed position.

                         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

          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

  80iMHz      Open      Closed    Closed

  100iMHz    Closed     Closed    Closed

  120iMHz     Open      Closed    Closed

  133iMHz    Closed     Closed    Closed

        VL BUS WAIT STATE CONFIGURATION

      Wait states                 JP17

     0 wait states                Open

      1 wait state               Closed

  Note: The location of JP17 is unidentified.

  VL BUS SPEED CONFIGURATION

   CPU speed         JP16

   <= 33MHz          Open

    > 33MHz         Closed

