UNIDENTIFIED

OPTI 386-25/386-33

Processor         80386DX (Exact location is unknown)
Processor Speed   25/33MHz
Chip Set          OPTi
Max. Onboard DRAM 8MB
Cache             None
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       32-bit external memory card
NPU Options       80387DX/3167

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Turbo LED                   CR4      Power LED & keylock         J23

  External battery            J10      Reset switch                SW1

  Speaker                     J22      Turbo switch                SW2

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color               JP1             Closed

      Monitor type select monochrome          JP1              Open

                            DRAM CONFIGURATION

    Size         Bank 0        Bank 1         Bank 2           Bank 3

     1MB        (4) 256K x      NONE           NONE             NONE
                    9

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

     3MB        (4) 256K x    (4) 256K x    (36) 41256          NONE
                    9             9

     4MB        (4) 256K x    (4) 256K x    (36) 41256       (36) 41256
                    9             9

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

     5MB        (4) 256K x   (4) 1M x 9        NONE             NONE
                    9

     8MB       (4) 1M x 9       NONE        (36) 411000         NONE

     8MB       (4) 1M x 9    (4) 1M x 9        NONE             NONE

    16MB       (4) 1M x 9    (4) 1M x 9     (36) 411000     (36) 411000

  Note:The locations of Bank 2 & Bank 3 can be found on the external
  memory card.

[Image]