OGIVAR INC.

INTERSYSTEM 386SX

Processor         80386SX (exact location unidentified)
Processor Speed   16/20MHz
Chip Set          Unidentified
Max. Onboard DRAM 8MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387SX (exact location unidentified)

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            J2       Speaker                     J13

  Reset switch                J11      Power LED & keylock         J14

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not             J12              N/A
      alter

  »   Factory configured - do not             J15              N/A
      alter

  »   Battery type select external            JP1              Open

      Battery type select internal            JP1           pins 1 & 2
                                                              closed

  »   BIOS type select 27256                  JP2           pins 2 & 3
                                                              closed

      BIOS type select 27128                  JP2           pins 1 & 2
                                                              closed

  »   Monitor type select color               JP4             Closed

      Monitor type select monochrome          JP4              Open

  »   NPU disabled                            JP7             Closed

      NPU enabled                             JP7              Open

  »   Pipeline mode enabled                   JP8             Closed

      Pipeline mode disabled                  JP8              Open

  Note: NPU must be synchronous with CPU.

                            DRAM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2          Bank 3

     512KB      (2) 256K x 9       NONE          NONE            NONE

      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

      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

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

  Note: Banks locations are unidentified and are labeled on the board in
  the following manner:

  Bank 0: SIMM 4 & 8

  Bank 1: SIMM 3 & 7

  Bank 2: SIMM 2 & 6

  Bank 3: SIMM 1 & 5