
SILICON STAR INTERNATIONAL, INC.

486 EISA-AE4

Processor            80486SX/80487SX/80486DX/80486DX2
Processor Speed      22/25/33/50(internal)/50/66(internal)MHz
Chip Set             SIS
Max. Onboard DRAM    128MB
Cache                64/128/256KB
BIOS                 AMI
Dimensions           330mm x 218mm
I/O Options          None
NPU Options          4167

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Power LED                  JP8       Reset switch               JP18

  Turbo LED                  JP16      Speaker                    JP19

  Turbo switch               JP17      Power LED & keylock        JP22

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Factory configured - do not alter        JP3             Open

     Factory configured - do not alter        JP4             Open

     Factory configured - do not alter        JP9           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP10           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP11           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP21           pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP23            Closed

     Monitor type select color               JP24             Open

      Monitor type select monochrome          JP24            Closed

              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

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         NONE

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

      64MB        (4) 16M x 9        NONE

     128MB        (4) 16M x 9    (4) 16M x 9

                            CACHE CONFIGURATION

       Size              Bank 0           Bank 1        TAG (U20 and U24)

       64KB            (4) 8K x 8       (4) 8K x 8         (2) 16K x 4

       128KB          (4) 32K x 8          NONE            (2) 16K x 4

       256KB          (4) 32K x 8       (4) 32K x 8        (2) 16K x 4

                        CACHE JUMPER CONFIGURATION

    Size           JP1            JP2            JP12           JP13

    64KB        pins 2 & 3     pins 1 & 2     pins 1 & 2      pins 1 & 2
                 closed          closed         closed         closed

    128KB       pins 1 & 2     pins 2 & 3     pins 1 & 2      pins 2 & 3
                 closed          closed         closed         closed

    256KB       pins 4 & 5     pins 2 & 3     pins 2 & 3      pins 2 & 3
                 closed          closed         closed         closed

                          CPU TYPE CONFIGURATION

       Type                JP5               JP7               JP15

      80486SX             Open            pins 2 & 3           Open
                                            closed

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

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

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

