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

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Reset switch

JP3 or JP8

Speaker

J5

32-bit external memory card

SL1 & SL2

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 power supply

JP4

pins 2 & 3 closed

 

Power good signal detect from board

JP4

pins 1 & 2 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.