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





386DX/20 & 386DX/25

PC BRAND

386DX/20 & 386DX/25

Processor

80386DX

Processor Speed

20/25MHz

Chip Set

Unidentified

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287/80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

J1

External battery

J13

Power LED & keylock

J2

Reset switch

J15

Speaker

J3

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

J5

pins 2 & 3 closed

Factory configured - do not alter

J6

pins 1 & 2 closed

Factory configured - do not alter

J12

N/A

CMOS memory normal operation

J14

pins 1 & 2 closed

 

CMOS memory clear

J14

pins 2 & 3 closed

Reset switch active at all times

J16

pins 2 & 3 closed

 

Reset switch active only when keyboard is locked

J16

pins 1 & 2 closed

Monitor type select color

J17

pins 2 & 3 closed

 

Monitor type select monochrome

J17

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

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

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

16MB

(2) 4M x 9

(2) 4M x 9

NONE

NONE

NPU CONFIGURATION

Type

J4

J7

J8

J9

J10

J11

80287 <10MHz

2 & 3

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

80287 10MHz

2 & 3

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

80387

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

1 & 2

3167

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

2 & 3

Note: Pins designated should be in the closed position.