
ACHME COMPUTER, INC.

MS-4116 VER. 2.0

Processor        80486SX/80487SX/80486DX/80486DX2
Processor Speed  25/33/50(internal)/50/66(internal)MHz
Chip Set         Unidentified
Max. Onboard DRAM128MB
Cache            64/128/256KB
BIOS             Unidentified
Dimensions       330mm x 218mm
I/O Options      32-bit external memory card, 32-bit VESA local bus slot
NPU Options      4167

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Auxiliary keyboard       JP1         Turbo switch        JP20 pins 15 -
  connector                                                      17

  External battery         JP5         Reset switch        JP20 pins 19 &
                                                                 20

  Power LED &          JP20 pins 1 -   32-bit VESA local        SL1
  keylock                   5          bus slot

  Speaker              JP20 pins 7 -   32-bit external          SL2
                            10         memory card

  Turbo LED            JP20 pins 12
                           & 13

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color               JP4             Closed

      Monitor type select monochrome          JP4              Open

     Battery type select internal            JP5           pins 2 & 3
                                                              closed

      Battery type select external            JP5             Closed

     Factory configured - do not             JP14          pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP15          pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP16          pins 2 & 3
      alter                                                   closed

     Factory configured - do not             JP21             N/A
      alter

     Factory configured - do not             JP22             N/A
      alter

     Factory configured - do not             JP23             N/A
      alter

     Factory configured - do not             JP24             N/A
      alter

                            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

          17MB                (4) 256K x 9              (4) 4M x 9

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

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

          64MB                 (4) 16M x 9                 NONE

  Note: In order to use 128MB, an external memory card must be installed.
  It uses the same configuration as above.

                    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      JP6     JP7     JP8      JP9      JP10      JP11      JP12

   64KB     1 & 2    1 & 2   2 & 3    Open     Open      Open      Open

   128KB    1 & 2    2 & 3   2 & 3   Closed    Open     Closed     Open

   256KB    2 & 3    2 & 3   2 & 3   Closed   Closed    Closed    Closed

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type               JP13              JP17               JP18

      80486SX             Open           pins 2 & 3            Open
                                           closed

      80487SX            Closed          pins 1 & 2         pins 2 & 3
                                           closed             closed

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

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

         CPU SPEED CONFIGURATION

        Speed                JP24

        25MHz         pins 2 & 3 closed

        33MHz         pins 2 & 3 closed

       50iMHz         pins 2 & 3 closed

        50MHz         pins 1 & 2 closed

       66iMHz         pins 2 & 3 closed

         BUS SPEED CONFIGURATION

      CPU speed              JP19

      <= 33MHz        pins 2 & 3 closed

       > 33MHz        pins 1 & 2 closed

