
SILICON STAR INTERNATIONAL, INC.

AN4R2/AN4TR2

Processor  80486SX/CX486M7/80486DX/80486DX2/80486DX4
Processor  20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed      100(internal)MHz
Chip Set   Unidentified
Max.       128MB
Onboard
DRAM
Cache      128/256/512KB
BIOS       AMI/Award
Dimensions 330mm x 218mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose               Location     Purpose                  Location

  Power LED &             JW1        External battery           JP25
  keylock

  Speaker                 JW2        Green PC connector     JP46 (pins 1,
                                     (monitor)                 3, 5)

  Reset switch            JW3        Green PC connector    JP46 (pins 7 &
                                     (power)                     8)

  Turbo switch            JW4        32-bit VESA local       SL1 - SL3
                                     bus slots

  Turbo LED               JW5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not             JP3              Open
      alter

     Factory configured - do not             JP4           pins 1 & 2
      alter                                                   closed

     Factory configured - do not             JP5              Open
      alter

     Factory configured - do not             JP6              Open
      alter

     Factory configured - do not             JP8           pins 1 & 2
      alter                                                   closed

     Factory configured - do not             JP13            Closed
      alter

     Factory configured - do not             JP14          pins 1 & 2
      alter                                                   closed

     Factory configured - do not             JP15             Open
      alter

     Factory configured - do not             JP16            Closed
      alter

     Factory configured - do not             JP17             Open
      alter

     CMOS memory normal operation            JP21          pins 1 & 2
                                                              closed

      CMOS memory clear                       JP21          pins 2 & 3
                                                              closed

     Factory configured - do not             JP41             Open
      alter

     Factory configured - do not             JP45             Open
      alter

     Factory configured - do not             JP49          pins 1 & 2
      alter                                                   closed

                            DRAM CONFIGURATION

     Size       SIMM 1 - 4     SIMM 5 - 8       SIMM 9         SIMM 10

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

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

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

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

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

     2MB           NONE           NONE        (1) 512K x        NONE
                                                  36

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

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

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

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

     4MB       (4) 256K x 9       NONE        (1) 512K x    (1) 256K x 36
                                                  36

     4MB       (4) 256K x 9   (4) 256K x 9    (1) 512K x        NONE
                                                  36

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

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

     6MB        (4) 1M x 9        NONE        (1) 256K x    (1) 256K x 36
                                                  36

     6MB       (4) 256K x 9       NONE       (1) 1M x 36    (1) 256K x 36

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

     6MB       (4) 256K x 9   (4) 256K x 9   (1) 1M x 36        NONE

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

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

     8MB           NONE           NONE       (1) 2M x 36        NONE

     8MB        (4) 1M x 9        NONE        (1) 512K x    (1) 512K x 36
                                                  36

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

     10MB       (4) 1M x 9     (4) 1M x 9     (1) 256K x    (1) 256K x 36
                                                  36

     10MB      (4) 256K x 9   (4) 256K x 9   (1) 1M x 36     (1) 1M x 36

     12MB       (4) 1M x 9        NONE       (1) 1M x 36     (1) 1M x 36

                        DRAM CONFIGURATION (CONT)

     Size       SIMM 1 - 4     SIMM 5 - 8       SIMM 9         SIMM 10

     12MB       (4) 1M x 9        NONE       (1) 1M x 36     (1) 1M x 36

     12MB       (4) 1M x 9     (4) 1M x 9     (1) 512K x    (1) 512K x 36
                                                  36

     12MB       (4) 1M x 9     (4) 1M x 9    (1) 1M x 36        NONE

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

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

     16MB       (4) 4M x 9        NONE           NONE           NONE

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

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

     16MB       (4) 4M x 9        NONE           NONE           NONE

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

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

     18MB       (4) 4M x 9        NONE        (1) 256K x    (1) 256K x 36
                                                  36

     18MB      (4) 256K x 9       NONE       (1) 4M x 36    (1) 256K x 36

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

     18MB      (4) 256K x 9   (4) 256K x 9   (1) 4M x 36        NONE

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

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

     20MB       (4) 4M x 9        NONE        (1) 512K x    (1) 512K x 36
                                                  36

     24MB       (4) 4M x 9        NONE       (1) 1M x 36     (1) 1M x 36

     24MB       (4) 1M x 9        NONE       (1) 4M x 36     (1) 1M x 36

     24MB       (4) 1M x 9     (4) 4M x 9     (1) 512K x    (1) 512K x 36
                                                  36

     24MB       (4) 1M x 9     (4) 1M x 9    (1) 4M x 36        NONE

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

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

     32MB          NONE           NONE       (1) 8M x 36        NONE

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

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

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

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

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

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

     40MB       (4) 4M x 9     (4) 4M x 9    (1) 1M x 36     (1) 1M x 36

     40MB       (4) 1M x 9        NONE       (1) 8M x 36     (1) 1M x 36

     40MB       (4) 1M x 9     (4) 1M x 9    (1) 8M x 36        NONE

     40MB       (4) 1M x 9     (4) 1M x 9    (1) 4M x 36     (1) 4M x 36

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

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

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

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

     64MB       (4) 4M x 9     (4) 4M x 9    (1) 4M x 36     (1) 4M x 36

     64MB          NONE           NONE       (1) 16M x 36       NONE

     64MB      (4) 16M x 9        NONE           NONE           NONE

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

     64MB       (4) 4M x 9        NONE       (1) 8M x 36     (1) 4M x 36

                        DRAM CONFIGURATION (CONT)

     Size        SIMM 1 - 4     SIMM 5 - 8      SIMM 9         SIMM 10

     64MB        (4) 4M x 9     (4) 4M x 9    (1) 8M x 36        NONE

     64MB        (4) 4M x 9     (4) 4M x 9    (1) 4M x 36    (1) 4M x 36

     64MB        (4) 16M x 9       NONE          NONE            NONE

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

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

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

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

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

     72MB        (4) 16M x 9       NONE       (1) 1M x 36    (1) 1M x 36

     72MB        (4) 1M x 9        NONE       (1) 16M x 36   (1) 1M x 36

     72MB        (4) 1M x 9     (4) 1M x 9    (1) 16M x 36       NONE

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

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

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

     96MB        (4) 16M x 9       NONE       (1) 4M x 36    (1) 4M x 36

     96MB        (4) 4M x 9        NONE       (1) 16M x 36   (1) 4M x 36

     96MB        (4) 4M x 9     (4) 4M x 9    (1) 16M x 36       NONE

     128MB          NONE           NONE       (1) 16M x 36   (1) 16M x 36

     128MB       (4) 16M x 9       NONE          NONE        (1) 16M x 36

     128MB       (4) 16M x 9    (4) 16M x 9      NONE            NONE

                         DRAM JUMPER CONFIGURATION

  Bank 0   Bank 1   Bank 2   Bank 3   JP18     JP19      JP20      JP22

  SIMM 1   SIMM 5   SIMM 9    SIMM   1 & 2    1 & 2      Open      1 & 2
   - 4      - 8               10

  SIMM 1   SIMM 5   SIMM 9   NONE    1 & 2    1 & 2      Open      1 & 2
   - 4      - 8

  SIMM 1   SIMM 9   NONE     NONE    1 & 2     Open      Open      1 & 2
   - 4

  SIMM 1    SIMM    SIMM 9   NONE    1 & 2     Open      Open      1 & 2
   - 4      10

  SIMM 9    SIMM    SIMM 1   SIMM 5  2 & 3    2 & 3      Open      2 & 3
            10       - 4      - 8

  SIMM 9    SIMM    NONE     NONE     Open     Open     Closed     2 & 3
            10

  SIMM 1    SIMM    SIMM 9   NONE    1 & 2     Open      Open      1 & 2
   - 4      10

  SIMM 9    SIMM    SIMM 1   SIMM 5  2 & 3    2 & 3      Open      2 & 3
            10       - 4      - 8

  Note: Pins designated should be in the closed position.

                     DRAM JUMPER CONFIGURATION (CONT)

  Bank 0   Bank 1   Bank 2   Bank 3   JP23     JP24      JP50      JP51

  SIMM 1   SIMM 5   SIMM 9    SIMM    Open    1 & 2      Open      Open
   - 4      - 8               10

  SIMM 1   SIMM 5   SIMM 9   NONE    1 & 2     Open      Open      Open
   - 4      - 8

  SIMM 1   SIMM 9   NONE     NONE    2 & 3     Open      Open      Open
   - 4

  SIMM 1    SIMM    SIMM 9   NONE    1 & 2    2 & 3      Open      Open
   - 4      10

  SIMM 9    SIMM    SIMM 1   SIMM 5   Open    2 & 3     Closed     2 & 3
            10       - 4      - 8

  SIMM 9    SIMM    NONE     NONE    2 & 3     Open      Open      1 & 2
            10

  SIMM 1    SIMM    SIMM 9   NONE    1 & 2    2 & 3      Open      Open
   - 4      10

  SIMM 9    SIMM    SIMM 1   SIMM 5   Open    2 & 3      Open      Open
            10       - 4      - 8

  Note: Pins designated should be in the closed position.

                      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

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

                        CACHE JUMPER CONFIGURATION

    Size          JP1            JP2            JP42            JP44

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

   256KB       pins 2 & 3     pins 2 & 3      pins 2 & 3      pins 1 & 2
                closed          closed         closed          closed

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

                          CPU TYPE CONFIGURATION

      Type          JP9        JP12       JP30        JP31        JP32

     80486SX       2 & 3      2 & 3       2 & 3       Open        2 & 3

    SL80486SX      2 & 3      2 & 3       2 & 3       Open        2 & 3

     CX486M7       2 & 3      2 & 3       1 & 2       2 & 3       2 & 3

   80486DX/DX2     2 & 3      2 & 3       1 & 2       2 & 3       2 & 3

  SL80486DX/DX2    2 & 3      2 & 3       1 & 2       2 & 3       2 & 3

    80486DX4       1 & 2      1 & 2       1 & 2       2 & 3       2 & 3

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

       Type            JP33        JP34      JP35       JP36       JP37

      80486SX         Closed       Open      Open       Open       Open

     SL80486SX         Open       4 & 5      3 & 4      2 & 3      Open

      CX486M7         Closed      2 & 3      2 & 3     1 & 2, 3    Open
                                                         & 4

    80486DX/DX2       Closed      4 & 5      3 & 4      2 & 3      Open

   SL80486DX/DX2      Closed      4 & 5      3 & 4      2 & 3      Open

     80486DX4         Closed      4 & 5      3 & 4      2 & 3      Open

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

      Type          JP38        JP39       JP43        JP47       JP48

     80486SX        1 & 2       Open       2 & 3      2 & 3       1 & 2

    SL80486SX       Open        Open       2 & 3      2 & 3       1 & 2

     CX486M7        2 & 3      2 & 3       1 & 2      1 & 2       2 & 3

   80486DX/DX2      Open        Open       2 & 3      2 & 3       1 & 2

  SL80486DX/DX2     Open        Open       2 & 3      2 & 3       1 & 2

    80486DX4        Open        Open       2 & 3      2 & 3       1 & 2

  Note: Pins designated should be in the closed position.

          CPU SPEED CONFIGURATION (AVASEM AV9107 CLOCK GENERATOR)

     Speed          JP10           JP11           JP26           JP27

     20MHz          Open           Open          Closed          Open

     25MHz          Open           Open           Open          Closed

     33MHz          Open           Open          Closed         Closed

     40MHz          Open           Open           Open           Open

    50iMHz          Open           Open           Open          Closed

     50MHz          Open           Open          Closed          Open

    66iMHz          Open           Open          Closed         Closed

    75iMHz          Open         pins 1 & 2       Open          Closed
                                  closed

    80iMHz         Closed          Open          Closed         Closed

    100iMHz         Open         pins 1 & 2      Closed         Closed
                                  closed

      CPU SPEED CONFIGURATION (AVASEM AV9107 CLOCK GENERATOR, CONT)

       Speed              JP28             JP29               JP40

       20MHz             Closed           Closed              Open

       25MHz             Closed           Closed              Open

       33MHz             Closed            Open               Open

       40MHz             Closed           Closed              Open

      50iMHz             Closed           Closed              Open

       50MHz             Closed            Open               Open

      66iMHz             Closed            Open               Open

      75iMHz              Open            Closed        pins 2 & 3 closed

      80iMHz              Open             Open         pins 2 & 3 closed

      100iMHz             Open             Open         pins 1 & 2 closed

           CPU SPEED CONFIGURATION (MXIC MX8315 CLOCK GENERATOR)

     Speed          JP10           JP11           JP26           JP27

     20MHz          Open           Open           Open           Open

     25MHz          Open           Open           Open          Closed

     33MHz          Open           Open          Closed         Closed

     40MHz          Open           Open          Closed         Closed

    50iMHz          Open           Open           Open          Closed

     50MHz          Open           Open          Closed          Open

    66iMHz          Open           Open          Closed         Closed

    75iMHz          Open         pins 1 & 2       Open          Closed
                                  closed

    80iMHz         Closed          Open          Closed         Closed

    100iMHz         Open         pins 1 & 2      Closed         Closed
                                  closed

       CPU SPEED CONFIGURATION (MXIC MX8315 CLOCK GENERATOR, CONT)

       Speed              JP28             JP29               JP40

       20MHz             Closed            Open               Open

       25MHz             Closed            Open               Open

       33MHz             Closed           Closed              Open

       40MHz             Closed            Open               Open

      50iMHz             Closed            Open               Open

       50MHz             Closed            Open               Open

      66iMHz             Closed           Closed              Open

      75iMHz              Open            Closed        pins 2 & 3 closed

      80iMHz              Open            Closed        pins 2 & 3 closed

      100iMHz             Open            Closed        pins 1 & 2 closed

         BUS SPEED CONFIGURATION

      CPU speed              JP7

      <= 33MHz        pins 1 & 2 closed

       > 33MHz        pins 2 & 3 closed

