AMPTRON INTERNATIONAL, INC.

DX-6400


Processor              80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed        16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set               C & T
Max. Onboard DRAM      32MB
Cache                  64/256KB
BIOS                   AMI
Dimensions             330mm x 218mm
I/O Options            None
NPU Options            None


[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            J3       Reset switch                J6

  Turbo switch                J4       Power LED & keylock         J7

  Turbo LED                   J5       Speaker                     J8

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   CMOS memory normal operation             JP1           pins 2 & 3
                                                              closed

      CMOS memory clear                        JP1           pins 1 & 2
                                                              closed

  »   Monitor type select color                JP2            Closed

      Monitor type select monochrome           JP2             Open

  »   I/O bus speed select CPUCLK/4            JP3             Open

      I/O bus speed select CPUCLK/6            JP3            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

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

      16MB        (4) 4M x 9         NONE

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

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

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

                           CACHE CONFIGURATION

     Size          Bank 0         Bank 1       TAG (U27)      TAG (U28)

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

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

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

                 CACHE JUMPER CONFIGURATION

   Size       JP7       JP8       JP9       JP10      JP11

   64KB      Open      Open       Open      Open     2 & 3

  256KB      1 & 2     1 & 2      Open     1 & 2     2 & 3

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

      Type          Socket          JP4           JP5            JP6

    80486SX          CPU         pins 2 & 3       Open           open
                                  closed

    ODP486SX        CPU-X        pins 1 & 2      Closed       pins 1 & 2
                                  closed                        closed

    80487SX         CPU-X        pins 1 & 2      Closed       pins 1 & 2
                                  closed                        closed

    80486DX          CPU         pins 1 & 2      Closed       pins 2 & 3
                                  closed                        closed

    80486DX2         CPU         pins 1 & 2      Closed       pins 2 & 3
                                  closed                        closed

                     CPU CLOCK FREQUENCY CONFIGURATION

            Type              CPU Frequency   Osc Frequency       JP12

  80486SX/80487SX/80486DX      20/25/33MHz     40/50/66MHz     pins 2 & 3
                                                                 closed

     80486DX2/ODP486SX          50/66MHz         25/33MHz      pins 1 & 2
                                                                 closed

     80486DX2/ODP486SX          50/66MHz         50/66MHz      pins 2 & 3
                                                                 closed

          80486DX                 50MHz           50MHz        pins 1 & 2
                                                                 closed