COMPUTREND SYSTEMS, INC.

CONTAQ-386 (MS-3124)

Processor

AM386DX/C & T 386DX/80386DX/80486SX/80487SX/80486DX

Processor Speed

16/20/25/33/40/50MHz

Chip Set

Unidentified

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

Unidentified

Dimensions

280mm x 225mm

I/O Options

None

NPU Options

80387DX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J5 pins 1 & 2

Power LED & keylock

J5 pins 16 - 20

Turbo switch

J5 pins 4 - 6

External battery

JP2

Turbo LED

J5 pins 8 & 9

Auxiliary keyboard connector

JP7

Speaker

J5 pins 11 - 14

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select color

JP1

Closed

 

Monitor type select monochrome

JP1

Open

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

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

T 0

T 1

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

(1) 16K x 4

128KB

(4) 32K x 8

NONE

(1) 8K x 8

(1) 16K x 4

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

(1) 16K x 4

Note: 128KB is not available when the 80486 board is installed.

CACHE JUMPER CONFIGURATION

Size

J4A

J4B

J4C

64KB

Installed

Not installed

Not installed

128KB

Not installed

Installed

Not installed

256KB

Not installed

Not installed

Installed

CPU TYPE CONFIGURATION

Type

J3A

J3B

J6A

J6B

JP5

JP8

80386

Installed

Not installed

Installed

Not installed

2 & 3

Open

80486

Not installed

Installed

Not installed

Installed

1 & 2

Closed

Note: Pins designated should be in the closed position. 80486 is located on external card.

CPU BUS CLOCK CONFIGURATION

CPU

CLK

JP3

JP4

JP6

80386

CLK2/10

Open

Open

pins 1 & 2 closed

80386

CLK2/8

Closed

Open

pins 1 & 2 closed

80386

CLK2/6

Open

Closed

pins 1 & 2 closed

80386

CLK2/4

Closed

Closed

pins 1 & 2 closed

80386

7.2MHz

Open

Open

pins 2 & 3 closed

80486

CLK2/4

Closed

Open

pins 1 & 2 closed

80486

CLK2/3

Open

Closed

pins 1 & 2 closed

80486

CLK2/6

Closed

Closed

pins 1 & 2 closed

80486

7.2MHz

Open

Open

pins 2 & 3 closed