
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

