DATAEXPERT CORPORATION

OPTI-80386-SX CACHE

Processor             80386SX
Processor Speed       25MHz
Chip Set              OPTI
Max. Onboard DRAM     16MB
Cache                 16/32/64KB
BIOS                  AMI
Dimensions            220mm x 220mm
I/O Options           None
NPU Options           80387SX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Power LED & keylock         J1       Turbo LED                   J4

  Speaker                     J2       Reset switch                J5

  Turbo switch                J3       External battery            J6

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

  »   Monitor type select color                JP7            Closed

      Monitor type select monochrome           JP7             Open

  »   NPU mode select asynchronous with        JP1            Closed
      CPU

      NPU mode select synchronous with         JP1             Open
      CPU

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

     2MB        (2) 256K x 9   (2) 256K x 9   (2) 256K x 9  (2) 256K x 9

     2MB        (2) 1M x 9        NONE           NONE           NONE

     3MB        (2) 256K x 9   (2) 256K x 9   (2) 1M x 9        NONE

     4MB        (2) 1M x 9     (2) 1M x 9        NONE           NONE

     5MB        (2) 256K x 9   (2) 256K x 9   (2) 1M x 9     (2) 1M x 9

     6MB        (2) 1M x 9     (2) 1M x 9     (2) 1M x 9        NONE

     8MB        (2) 1M x 9     (2) 1M x 9     (2) 1M x 9     (2) 1M x 9

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

     10MB       (2) 1M x 9     (2) 4M x 9        NONE           NONE

     12MB       (2) 1M x 9     (2) 1M x 9     (2) 4M x 9        NONE

     16MB       (2) 4M x 9     (2) 4M x 9        NONE           NONE

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     16KB        (2) 8K x 8        NONE       (1) 8K x 8

     32KB        (2) 8K x 8     (2) 8K x 8    (1) 8K x 8

     64KB       (2) 32K x 8        NONE       (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

    Size           JP2             JP3            JP4            JP5

    16KB        pins 1 & 2      pins 1 & 2       Open            Open
                 closed          closed

    32KB        pins 1 & 2      pins 2 & 3      Closed           Open
                 closed          closed

    64KB        pins 2 & 3      pins 2 & 3       Open           Closed
                 closed          closed