
ACHME COMPUTER, INC.

MS-4132G VLB 486 SI3G

Processor        80486SX/80487SX/80486SX-SL/80486DX/80486DX-SL
Processor Speed  25/33/40/50MHz
Chip Set         SIS
Max. Onboard DRAM32MB
Cache            128/256KB
BIOS             Phoenix
Dimensions       254mm x 218mm
I/O Options      32-Bit VESA local bus slots (3)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                   Location     Purpose                Location

  Internal keyboard            CN1       Power saving switch      JG3
  connector

  External battery             JB        32-Bit VESA local         S1
                                         bus slot

  Green Function               JC7       32-Bit VESA local         S2
                                         bus slot

  Monitor power control        JG1       32-Bit VESA local         S3
                                         bus slot

  Green PC LED                 JG2

                  PIN OUT CONFIGURATION

          Connector
                                         JFP

           Keylock
                                  pins 1 & 2 closed

          Power LED
                                  pins 3 & 5 closed

          Turbo LED
                                 pins 12 & 13 closed

        Turbo switch
                               pins 15, 16, & 17 closed

            Reset
                                 pins 19 & 20 closed

           Speaker
                              pins 7, 8, 9, & 10 closed

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     CPU PQFP not installed                  JC1             Closed

      CPU PQFP installed                      JC1              Open

     Monitor type select monochrome          JP1              Open

      Monitor type select color               JP1             Closed

     Factory configured - do not             JP4A          pins 1 & 2
      alter                                                   closed

     Factory configured - do not             JP16             N/A
      alter

     Normal VL-bus card installed            JP23             Open

      Special VL-bus card installed           JP23            Closed

                    CACHE CONFIGURATION

     Size
                   Bank 0
                                  Bank 1
                                                  TAG

     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                 JS1                  JS2

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

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

                          CPU TYPE CONFIGURATION

     Type
                 JC2
                         JC3
                                 JC4
                                         JC5
                                                 JC6
                                                          JC8
                                                                    JC9

    80486SX
                Open
                         pins
                        2 & 3
                                 N/A
                                         N/A
                                                 Open
                                                         Closed
                                                                  Closed

  80486SX-SL
                 pins
                2 & 3
                         pins
                        2 & 3
                                 pins
                                 1 & 2
                                         pins
                                         1 & 2
                                                 Open
                                                         Closed
                                                                  Closed

    80487SX
                Open
                         1 &
                         2, 3
                         & 4
                                 N/A
                                         N/A
                                                 pins
                                                 1 & 2
                                                          Open
                                                                   Open

    80486DX
                Open
                         1 &
                         2, 3
                         & 4
                                 N/A
                                         N/A
                                                 pins
                                                 2 & 3
                                                          Open
                                                                   Open

  80486DX-SL
                 pins
                2 & 3
                         1 &
                         2, 3
                         & 4
                                 pins
                                 1 & 2
                                         pins
                                         1 & 2
                                                 pins
                                                 2 & 3
                                                         Closed
                                                                  Closed

  Note: Pins designated should be in the closed position.

              VESA WAIT STATE/BUS SPEED CONFIGURATION

      Speed        Wait states          JP8              JP9

     < 33MHz      0 wait states         Open            Open

     >33MHz        1 wait state        Closed          Closed

                          CPU SPEED CONFIGURATION

    Speed
                   JK1
                                  JK2
                                                 JK3
                                                                 JK4

    25MHz
                   Open
                                  Open
                                               Closed
                                                              pins 2 & 3
                                                               closed

    33MHz
                  Closed
                                  Open
                                                Open
                                                              pins 2 & 3
                                                               closed

    40MHz
                  Closed
                                 Closed
                                                Open
                                                              pins 2 & 3
                                                               closed

    50MHz
                   Open
                                 Closed
                                                Open
                                                              pins 1 & 2
                                                               closed

                    DRAM BANK AND JUMPER CONFIGURATION

  Size       Bank 0       Bank 1       Bank 2      JM1      JM2     JM3

   4MB      (1) 256KB    (1) 512KB      NONE       1 & 2    N/A     N/A
            x 36 DS        x 36

   4MB     (1) 256K x    (1) 512KB     (4) 256K    1 & 2   4 & 5   1 & 2
               36          x 36          x 9

   4MB      (1) 512KB    (1) 512KB      NONE       2 & 3    N/A     N/A
              x 36         x 36

   4MB      (1) 1M x       NONE         NONE       N/A      N/A     N/A
               36

   4MB        NONE         NONE        (4) 1M x    N/A      N/A    2 & 3
                                          9

   8MB      (1) 256KB    (1) 512KB     (4) 1M x    1 & 2   1 & 2   1 & 2
            x 36 DS        x 36           9

   8MB      (1) 256KB     (1) 1M x      NONE       1 & 2    N/A     N/A
            x 36 DS         36

   8MB      (1) 256KB      NONE        (4) 1M x    N/A     2 & 3   1 & 2
            x 36 DS                       9

   8MB      (1) 1M x      (1) 1M x      NONE       2 & 3    N/A     N/A
               36           36

   8MB      (1) 1M x       NONE        (4) 1M x    N/A     4 & 5   1 & 2
               36                         9

   8MB      (1) 1M x       NONE         NONE       N/A      N/A     N/A
             36 DS

  12MB      (1) 256KB     (1) 1M x     (4) 1M x    1 & 2   1 & 2   1 & 2
            x 36 DS         36            9

  12MB      (1) 1M x      (1) 1M x     (4) 1M x    1 & 2   4 & 5   1 & 2
               36           36            9

  16MB      (1) 1M x      (1) 1M x     (4) 1M x    1 & 2   1 & 2   1 & 2
             36 DS          36            9

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

  16MB      (1) 4M x       NONE         NONE       N/A      N/A     N/A
               36

  16MB        NONE         NONE        (4) 4M x    N/A      N/A    2 & 3
                                          9

  20MB      (1) 2M x      (1) 2M x     (4) 4M x    2 & 3   2 & 3   1 & 2
               36           36            9

  24MB      (1) 2M x      (1) 4M x     (4) 4M x    1 & 2   1 & 2   1 & 2
             36 DS          36            9

  32MB      (1) 4M x      (1) 4M x      NONE       2 & 3    N/A     N/A
               36           36

  64MB      (1) 4M x      (1) 4M x      NONE       1 & 2   1 & 2   1 & 2
             36 DS         36 DS

  64MB      (1) 4M x      (1) 4M x     (4) 4M x    1 & 2   1 & 2   1 & 2
             36 DS          36            9

  Note:Pins designated should be in the closed position.

