
MICRO-STAR INTERNATIONAL CO., LTD.

MS-4132

Processor  80486SX/SL80486SX/80487SX/AM486DX/80486DX/SL80486DX/AM486DX2/80486DX2/SL80486DX2
Processor  25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set   SIS
Max.       96MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       AMI/Phoenix
Dimensions 260mm x 221mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Auxiliary keyboard       CN1         Reset switch         JFP pins 19 &
  connector                                                      20

  External battery          JB         Green PC connector       JG1
                                       (monitor)

  Power LED &          JFP pins 1 -    Green PC LED             JG2
  keylock                   5

  Speaker              JFP pins 7 -    Green PC connector       JG3
                            10

  Turbo LED            JFP pins 12 &   32-bit VESA local     SL1 - SL3
                            13         bus slots

  Turbo switch         JFP pins 15 -
                            17

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery type select internal             JB           pins 2 & 3
                                                              closed

      Battery type select external             JB             Closed

     CPU type select PQFP CPU                JC1              Open
      installed

      CPU type select PGA CPU                 JC1             Closed
      installed

     Factory configured - do not             JC5              N/A
      alter

     Factory configured - do not             JC6              N/A
      alter

     Factory configured - do not             JC7              N/A
      alter

     Factory configured - do not             JC9              N/A
      alter

     Factory configured - do not             JC10             N/A
      alter

     Monitor type select monochrome          JP1              Open

      Monitor type select color               JP1             Closed

     Factory configured - do not             JP16             N/A
      alter

     VESA local bus card select any          JP23             Open
      card installed

      VESA local bus card select              JP23            Closed
      special cards only

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       1MB             NONE        (1) 256K x 36        NONE

       1MB         (4) 256K x 9         NONE            NONE

       2MB             NONE        (1) 256K x 36    (1) 256K x 36

       2MB             NONE        (1) 512K x 36        NONE

       2MB         (4) 256K x 9    (1) 256K x 36        NONE

       4MB             NONE        (1) 512K x 36    (1) 512K x 36

       4MB             NONE         (1) 1M x 36         NONE

       4MB          (4) 1M x 9          NONE            NONE

       5MB             NONE        (1) 256K x 36     (1) 1M x 36

       5MB          (4) 1M x 9     (1) 256K x 36        NONE

       6MB             NONE        (1) 512K x 36     (1) 1M x 36

       6MB          (4) 1M x 9     (1) 512K x 36        NONE

       6MB          (4) 1M x 9     (1) 256K x 36    (1) 256K x 36

       8MB             NONE         (1) 1M x 36      (1) 1M x 36

       8MB             NONE         (1) 2M x 36         NONE

       8MB          (4) 1M x 9      (1) 1M x 36         NONE

       8MB          (4) 1M x 9     (1) 512K x 36    (1) 512K x 36

      12MB          (4) 1M x 9      (1) 1M x 36      (1) 1M x 36

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

      16MB             NONE         (1) 4M x 36         NONE

      16MB          (4) 4M x 9          NONE            NONE

      17MB             NONE        (1) 256K x 36     (1) 4M x 36

      17MB          (4) 4M x 9     (1) 256K x 36        NONE

      18MB             NONE        (1) 512K x 36     (1) 4M x 36

      18MB          (4) 4M x 9     (1) 512K x 36        NONE

      18MB          (4) 4M x 9     (1) 256K x 36    (1) 256K x 36

      20MB             NONE         (1) 1M x 36      (1) 4M x 36

                    DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1          Bank 2

      20MB          (4) 4M x 9      (1) 1M x 36         NONE

      20MB          (4) 4M x 9     (1) 512K x 36    (1) 512K x 36

      24MB          (4) 4M x 9      (1) 1M x 36      (1) 1M x 36

      32MB             NONE         (1) 4M x 36      (1) 4M x 36

      32MB             NONE         (1) 8M x 36         NONE

      32MB          (4) 4M x 9      (1) 4M x 36         NONE

      36MB             NONE         (1) 1M x 36      (1) 8M x 36

      36MB          (4) 1M x 9          NONE         (1) 8M x 36

      36MB          (4) 4M x 9      (1) 1M x 36      (1) 4M x 36

      48MB             NONE         (1) 4M x 36      (1) 8M x 36

      48MB          (4) 4M x 9          NONE         (1) 8M x 36

      48MB          (4) 4M x 9      (1) 4M x 36      (1) 4M x 36

      64MB             NONE         (1) 8M x 36      (1) 8M x 36

      64MB         (4) 16M x 9          NONE            NONE

      65MB         (4) 16M x 9     (1) 256K x 36        NONE

      68MB         (4) 16M x 9      (1) 1M x 36         NONE

      72MB         (4) 16M x 9      (1) 1M x 36      (1) 1M x 36

      80MB         (4) 16M x 9      (1) 4M x 36         NONE

      96MB         (4) 16M x 9      (1) 4M x 36      (1) 4M x 36

                 DRAM JUMPER CONFIGURATION

             Size                          JM1

             1MB                          Open

             1MB                    pins 1 & 2 closed

             2MB                          Open

             2MB                          Open

             2MB               pins 2 & 3 or 3 & 4 closed

             4MB                          Open

             4MB                          Open

             4MB                    pins 1 & 2 closed

             5MB                          Open

             5MB               pins 2 & 3 or 3 & 4 closed

             6MB                          Open

             6MB               pins 2 & 3 or 3 & 4 closed

             6MB                    pins 4 & 5 closed

             8MB                          Open

             8MB                          Open

             8MB               pins 2 & 3 or 3 & 4 closed

             8MB                    pins 4 & 5 closed

             12MB                   pins 4 & 5 closed

             16MB                         Open

             16MB                         Open

             16MB                   pins 1 & 2 closed

             17MB                         Open

             DRAM JUMPER CONFIGURATION (CONT)

             Size                          JM1

             17MB              pins 2 & 3 or 3 & 4 closed

             18MB                         Open

             18MB              pins 2 & 3 or 3 & 4 closed

             18MB                   pins 4 & 5 closed

             20MB                         Open

             20MB              pins 2 & 3 or 3 & 4 closed

             20MB                   pins 4 & 5 closed

             24MB                   pins 4 & 5 closed

             32MB                         Open

             32MB                         Open

             32MB              pins 2 & 3 or 3 & 4 closed

             36MB                         Open

             36MB                   pins 1 & 2 closed

             36MB                   pins 4 & 5 closed

             48MB                         Open

             48MB                   pins 1 & 2 closed

             48MB                   pins 4 & 5 closed

             64MB                         Open

             64MB                   pins 1 & 2 closed

             65MB              pins 2 & 3 or 3 & 4 closed

             68MB              pins 2 & 3 or 3 & 4 closed

             72MB                   pins 4 & 5 closed

             80MB              pins 2 & 3 or 3 & 4 closed

             96MB                   pins 4 & 5 closed

                            CACHE CONFIGURATION

       Size             Bank 0           Bank 1               TAG

      128KB          (4) 32K x 8          NONE         (1) 8K, (1) 16K or
                                                          (1) 32K x 8

    256KB (A)        (4) 32K x 8      (4) 32K x 8      (1) 16K or (1) 32K
                                                              x 8

    256KB (B)        (4) 64K x 8          NONE         (1) 16K or (1) 32K
                                                              x 8

      512KB          (4) 128K x 8         NONE            (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

      Size               JS1               JS2                 JS3

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

    256KB (A)         pins 2 & 3        pins 2 & 3      pins 1 & 2 closed
                       closed             closed

    256KB (B)         pins 2 & 3        pins 1 & 2      pins 1 & 2 closed
                       closed             closed

      512KB           pins 2 & 3        pins 1 & 2      pins 2 & 3 closed
                       closed             closed

                          CPU TYPE CONFIGURATION

      Type           JC2            JC3           JC4            JC8

    80486SX          Open          2 & 3          Open           Open

   SL80486SX     1 & 2, 3 & 4      2 & 3         1 & 2           Open

    80487SX          Open        1 & 2, 3 &       Open          1 & 2
                                     4

    AM486DX          Open        1 & 2, 3 &       Open          2 & 3
                                     4

    80486DX          Open        1 & 2, 3 &       Open          2 & 3
                                     4

   SL80486DX     1 & 2, 3 & 4    1 & 2, 3 &      1 & 2          2 & 3
                                     4

    AM486DX2         Open        1 & 2, 3 &       Open          2 & 3
                                     4

    80486DX2         Open        1 & 2, 3 &       Open          2 & 3
                                     4

   SL80486DX2    1 & 2, 3 & 4    1 & 2, 3 &      1 & 2          2 & 3
                                     4

  Note: Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

         Speed                     JK1                      JK5

         25MHz                    Open               pins 2 & 3 closed

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

         40MHz              pins 3 & 4 closed        pins 2 & 3 closed

         50iMHz                   Open               pins 2 & 3 closed

         50MHz              pins 1 & 2, 5 & 6        pins 1 & 2 closed
                                 closed

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

                       VESA WAIT STATE CONFIGURATION

              Wait states                               JP8

                0 wait states                         Closed

               1 wait state                           Open

  VL BUS SPEED CONFIGURATION

   CPU speed         JP9

   <= 33MHz          Open

    > 33MHz         Closed

