UNIDENTIFIED

CMC-820

Processor

80386DX

Processor Speed

10/20MHz

Chip Set

C & T

Max. onboard DRAM

16MB

Cache

None

BIOS

Unknown

Dimensions

330mm x 218mm

I/O Options

32-bit external memory cards (2)

NPU Options

80387DX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Speaker

J11

Turbo LED

J7

Keylock

J12

Reset Switch

J10

32-bit system memory cards

S1 & S2

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

BIOS type select 27128 or 27256

J3

pins 1 & 2 closed

 

BIOS type select 27512

J3

pins 2 & 3 closed

»

Monitor type select color

J5

Closed

 

Monitor type select monochrome

J5

Open

»

NPU enabled

J6

Closed

 

NPU disabled

J6

Open

»

NPU type select Intel or 80387

J9

Closed

 

NPU type select Weitek 3167

J9

Open

DRAM CONFIGURATION

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

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

Note:The numbering of bank 0 and bank 1 are located on the system board.

Banks 2 & 3 are located on the external memory card.

CPU SPEED CONFIGURATION

Speed

J4

J8

10MHz

pins 2 & 3 closed

pins 1 & 2 closed

20MHz

pins 1 & 2 closed

pins 2 & 3 closed

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port DB-9

J101

Parallel port DB-9

J103

Serial port 10-pins header

J102

Parallel port 10-pins header

J104

I/O CONFIGURATION

Port

SW1/switch 1

SW1/switch 2

SW1/switch 3

SW1/switch 4

Serial port DB-9

On

Off

On

On

Serial port 10-pins header

On

On

On

Off

Parallel port DB-9

On

On

Off

On

Parallel port 10-pins header

Off

On

On

On