MITAC INTERNATIONAL CORPORATION

IB-4033

Processor         80486DX
Processor Speed   33MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            J18       Turbo switch              JP12

  Power LED & keylock         J21       Turbo LED                 JP13

  Speaker                     J22       Reset switch              JP14

  Note:The location of JP14 is unidentified.

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                JP2            Closed

  »   Monitor type select monochrome           JP2             Open

  »   ATCLK (I/O Bus) speed select CPU         JP3             Open
      speed /4

  »   ATCLK (I/O Bus) speed select CPU         JP3            Closed
      speed /6

  »   CPU speed select iOSC                   JP15           pins 1 & 2
                                                              closed

  »   CPU speed select iOSC/2                 JP15           pins 2 & 3
                                                              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

      5MB         (4) 256K x 9    (4) 1M x 9

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

      16MB        (4) 4M x 9         NONE

      20MB        (4) 4M x 9      (4) 1M x 9

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

             CACHE CONFIGURATION

     Size          Bank 0           TAG

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

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

  Note:The TAG chip sizes are unidentified.

       CACHE JUMPER CONFIGURATION

   Size      JP4       JP5      JP10

   64KB      Open     Open      Open

  256KB     Closed   Closed    Closed