OGIVAR, INC.

INTERSYSTEM 386/25

Processor         80386DX
Processor Speed   25MHz
Chip Set          Unidentified
Max. Onboard DRAM 16MB (on external memory card)
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       32-bit external memory card (2)
NPU Options       80287/80387DX

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  External battery           J2        Reset switch           JP3 or JP8

  Speaker                    J5        32-bit external         SL1 & SL2
                                       memory card

  Power LED & keylock        J6

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not alter        J4               N/A

  »   Factory configured - do not alter        J7               N/A

  »   Battery type select external             JP1             Open

      Battery type select internal             JP1            Closed

  »   Monitor type select color                JP2            Closed

      Monitor type select monochrome           JP2             Open

  »   Power good signal detect from            JP4           pins 2 & 3
      power supply                                            closed

      Power good signal detect from            JP4           pins 1 & 2
      board                                                   closed

  »   NPU synchronous with CPU                 JP5           pins 1 & 2
                                                              closed

      NPU asynchronous with CPU                JP5           pins 1 & 2
                                                              closed

                 DRAM CONFIGURATION (EXTERNAL MEMORY CARD)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

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

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

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

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

     6MB        (4) 1M x 9     (4) 256K x 9   (4) 256K x 9      NONE

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

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

                              NPU TYPE SELECT

           Type                      JP6                     JP7

  »   None                          Closed                  Open

             80287                  Closed                  Open

             80387                   Open                  Closed

  Note: Exact location of JP6 & JP7 is approximate. Both jumpers are
  labeled on the board.