
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

