
MULTIBEST INDUSTRIAL & MANUFACTURING, INC.

MB486EISA

Processor          80486DX
Processor Speed    33/50MHz
Chip Set           Intel
Max. Onboard DRAM  32MB
Cache              64/128KB (on external CPU/SRAM card)
BIOS               Phoenix
Dimensions         330.4mm x 218.4mm
I/O Options        32-bit external CPU/SRAM card slot
NPU Options        None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  Reset switch               J3        Speaker                    J8

  Power LED & keylock        J7        32-bit external            S1
                                       CPU/SRAM card

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

     I/O recovery disabled                     J1             Open

      I/O recovery enabled                      J1            Closed

     System bus posted write disabled          J2             Open

      System bus posted write enabled           J2            Closed

     Monitor type select monochrome            J6             Open

      Monitor type select color                 J6            Closed

     BIOS mode select normal operation        J10           pins 1 & 2
      (+5VPP)                                                 closed

      BIOS mode select programmable            J10           pins 2 & 3
      (+12VPP)                                                closed

                            DRAM CONFIGURATION

  Size    Bank     Bank    Bank    Bank    Bank     Bank    Bank   Bank 7
           0        1       2       3       4        5       6

  1MB     256K    NONE    NONE     NONE    NONE    NONE    NONE     NONE
          x 36

  2MB     256K     256K   NONE     NONE    NONE    NONE    NONE     NONE
          x 36    x 36

  3MB     256K     256K    256K    NONE    NONE    NONE    NONE     NONE
          x 36    x 36    x 36

  4MB     256K     256K    256K    256K    NONE    NONE    NONE     NONE
          x 36    x 36    x 36     x 36

  4MB     1M x    NONE    NONE     NONE    NONE    NONE    NONE     NONE
           36

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

  6MB     1M x    NONE    NONE     NONE    256K     256K   NONE     NONE
           36                              x 36    x 36

  7MB     1M x    NONE    NONE     NONE    256K     256K    256K    NONE
           36                              x 36    x 36    x 36

  8MB     1M x    NONE    NONE     NONE    256K     256K    256K   256K x
           36                              x 36    x 36    x 36      36

  8MB     1M x     1M x   NONE     NONE    NONE    NONE    NONE     NONE
           36      36

  9MB     1M x     1M x   NONE     NONE    256K    NONE    NONE     NONE
           36      36                      x 36

  10MB    1M x     1M x   NONE     NONE    256K     256K   NONE     NONE
           36      36                      x 36    x 36

  11MB    1M x     1M x   NONE     NONE    256K     256K    256K    NONE
           36      36                      x 36    x 36    x 36

  12MB    1M x     1M x   NONE     NONE    256K     256K    256K   256K x
           36      36                      x 36    x 36    x 36      36

  12MB    1M x     1M x    1M x    NONE    NONE    NONE    NONE     NONE
           36      36      36

  13MB    1M x     1M x    1M x    NONE    256K    NONE    NONE     NONE
           36      36      36              x 36

  14MB    1M x     1M x    1M x    NONE    256K     256K   NONE     NONE
           36      36      36              x 36    x 36

  15MB    1M x     1M x    1M x    NONE    256K     256K    256K    NONE
           36      36      36              x 36    x 36    x 36

  16MB    1M x     1M x    1M x    NONE    256K     256K    256K   256K x
           36      36      36              x 36    x 36    x 36      36

  16MB    1M x     1M x    1M x    1M x    NONE    NONE    NONE     NONE
           36      36      36       36

  17MB    1M x     1M x    1M x    1M x    256K    NONE    NONE     NONE
           36      36      36       36     x 36

  18MB    1M x     1M x    1M x    1M x    256K     256K   NONE     NONE
           36      36      36       36     x 36    x 36

  19MB    1M x     1M x    1M x    1M x    256K     256K    256K    NONE
           36      36      36       36     x 36    x 36    x 36

  20MB    1M x     1M x    1M x    1M x    256K     256K    256K   256K x
           36      36      36       36     x 36    x 36    x 36      36

  20MB    1M x     1M x    1M x    1M x    1M x    NONE    NONE     NONE
           36      36      36       36      36

  24MB    1M x     1M x    1M x    1M x    1M x     1M x   NONE     NONE
           36      36      36       36      36      36

  28MB    1M x     1M x    1M x    1M x    1M x     1M x    1M x    NONE
           36      36      36       36      36      36      36

  32MB    1M x     1M x    1M x    1M x    1M x     1M x    1M x    1M x
           36      36      36       36      36      36      36       36

                           SRAM CONFIGURATION

            Size                     Intel Turbocache part number

            64KB                               82485MA

            128KB                              82485MB

  Note:Intel Turbocache modules plug into CPU card located in slot S1.

