
MICRO-STAR INTERNATIONAL CO., LTD.

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    N/A     N/A     Open    Closed   Closed
                        2 & 3

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

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

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

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

  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.

