
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.

