...because we can't all be on the bleeding edge...





386/486/486SX (386 BOARD)

NORTHGATE COMPUTER SYSTEMS, INC.

386/486/486SX (386 BOARD)

Processor

80386DX

Processor Speed

25/33/40MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

64KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card slot

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J10

Reset switch

J23 pins 9 & 19

Speaker

J23 pins 1 - 4

Power LED & Keylock

J23 pins 11 - 15

Turbo switch

J23 pins 7 & 17

32-bit external memory card

S1

Turbo LED

J23 pins 8 & 18

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select monochrome

JP1

Open

 

Monitor type select color

JP1

Closed

Battery type select internal

JP2

pins 2 & 3 closed

 

Battery type select external

JP2

pins 1 & 2 closed

Factory configured - do not alter

JP3

Open

Factory configured - do not alter

JP4

N/A

Factory configured - do not alter

JP9

N/A

Factory configured - do not alter

JP12

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

TAG

Dirty Bit

64KB

(8) 8K x 8

(2) 4K x 4

(1) 16K x 1

Note:The cache, TAG, and dirty bit chip locations and sizes are unidentified.