
AMPTRON INTERNATIONAL, INC.

DX-6600

Processor        80486SX/AM486SX/Cx486S/80487SX/AM486DX

                 80486DX/Cx486DX/AM486DX2/80486DX2
Processor Speed  25/33/40/50(internal/50/66(internal)MHz
Chip Set         SARC
Max. Onboard DRAM64MB
Cache            64/128/256KB
BIOS             AMI
Dimensions       330mm x 218mm
I/O Options      32-bit VESA local bus slots (3)
NPU Options      80387DX

[Image]

                                CONNECTIONS

  Purpose              Location       Purpose               Location

  Power LED &            JP10         Reset switch            JP13
  keylock

  Speaker                JP11         Turbo switch            JP14

  Turbo LED              JP12         32-bit VESA        SL1, SL2,& SL3
                                      local bus slots

                        USER CONFIGURABLE SETTINGS

                  Function                      Jumper        Position

      CPU clock rate < 33 MHz                    JP15           Open

      CPU clock rate > 33 MHz                    JP15        pins 1 & 2
                                                               closed

     CMOS memory normal operation(External       JP1           Open
      Battery)

      CMOS memory normal                          JP1        pins 2 & 3
      operation(Rechargeable Battery)                          closed

      CMOS memory clear                           JP1        pins 3 & 4
                                                               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) 1M x 9     (4) 256K 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

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

      64MB        (4) 16M x 9        NONE

                    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

                        CACHE JUMPER CONFIGURATION

    Size          JP2            JP4            JP5              JP6

    64KB          Open          Open         pins 1 & 2         Open
                                               closed

   128KB          Open         Closed        pins 2 & 3       pins 2 & 3
                                               closed          closed

   256KB         Closed        Closed        pins 1 & 2       pins 1 & 2
                                               closed          closed

                          CPU TYPE CONFIGURATION

        CPU Type                   JP16                     JP17

         80486SX             pins 2 & 3 closed              Open

         Cx486S              pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                  closed

         80487SX             pins 1 & 2, 3 & 4       pins 2 & 3 closed
                                  closed

         80486DX             pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                  closed

         Cx486DX             pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                  closed

        80486DX2             pins 1 & 2, 3 & 4       pins 1 & 2 closed
                                  closed

                          CPU SPEED CONFIGURATION

    CPU speed            JP7                JP8               JP18

      25MHz           pins 2 & 3         pins 1 & 2         pins 1 & 2
                        closed            closed             closed

      33MHz           pins 1 & 2         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

      40MHz           pins 2 & 3         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

      50MHz           pins 2 & 3         pins 1 & 2         pins 2 & 3
                        closed            closed             closed

      50iMHz          pins 2 & 3         pins 1 & 2         pins 1 & 2
                        closed            closed             closed

      66iMHz          pins 1 & 2         pins 2 & 3         pins 1 & 2
                        closed            closed             closed

                 CPU SPEED CONFIGURATION (AMD486 CPU ONLY)

                    Adaptor Board        System Board

    CPU speed            JP1                 JP2               JP18

      25MHz           pins 1 & 2        pins 1 & 2, 3 &     pins 2 & 3
                                              4

      33MHz           pins 2 & 3        pins 1 & 2, 3 &     pins 2 & 3
                                              4

    Cx 40MHz          pins 2 & 3          pins 3 & 4        pins 1 & 2

      40MHz           pins 1 & 2          pins 2 & 3        pins 1 & 2

      50MHz           pins 1 & 2          pins 3 & 4        pins 2 & 3

     50iMHz           pins 1 & 2        pins 1 & 2, 3 &     pins 2 & 3
                                              4

     66iMHz           pins 2 & 3        pins 1 & 2, 3 &     pins 2 & 3
                                              4

  Note:Pins designated are in the closed position.

  When this system board is installed with a AMD486 CPU, a DX-6600 clock
  generator adaptor board is required. A system board that has this
  adaptor board installed must follow the above configuration table.
  System boards without this adapter board are to be configured according
  to the user manual.

  To install the DX-6600 clock generator adaptor board, remove the
  original clock chip from location "Y1" (between the 387DX socket and
  the inner most VL-bus slot). Remove the jumper caps from JP7 and JP8.
  Use a wire cutter to cut all the pins from JP7. Orient the cut-off at
  the socket under the adapter with the cut-off at the socket on the
  system board location "Y1" in such a way that the jumper JP1 & JP2 on
  the adapter board are on top of the original jumper JP7 on the system
  board. Insert the adapter board firmly into the 8-pin system board
  socket and follow the jumper settings above to configure your system.

  If you have any problems installing the DX-6600 or configuring your
  system, please contact the manufacturer for assisstance.

