NCR CORPORATION

PERSONAL COMPUTER PC-8

Processor

80286 (exact location unidentified)

Processor Speed

Unidentified

Chip Set

Unidentified

Max. Onboard DRAM

14MB (640KB on mainboard)

Cache

None

BIOS

Unidentified

Dimensions

538mm x 420mm

I/O Options

None

NPU Options

80287 (exact location unidentified)

CONNECTIONS

Purpose

Location

External battery

P21

USER CONFIGURABLE SETTINGS

Function

Switch

Position

 

Monitor type select monochrome

SW1

On

 

Monitor type select color

SW1

Off

»

Factory configured - do not alter

U101

N/A

DRAM CONFIGURATION

Note: The location, orientation and chips sizes are unidentified.

DRAM JUMPER CONFIGURATION

Size

P17

P18

256KB

Pins 1 & 2 closed

Pins 1 & 2 closed

512KB

Pins 1 & 2 closed

Pins 2 & 3 closed

640KB

Pins 2 & 3 closed

Pins 2 & 3 closed

DRAM CONFIGURATION

Note: The orientation and chips sizes are unidentified.

DRAM SWITCH CONFIGURATION

Size

S1/1

S1/2

S1/3

S1/4

S1/5

S2/1

S2/2

S2/3

S2/4

S2/5

None

On

On

On

Off

On

On

On

On

Off

Off

512KB

On

On

On

Off

Off

On

On

Off

On

On

1MB

On

On

Off

On

On

On

On

Off

On

Off

1.5MB

On

On

Off

On

Off

On

On

Off

Off

On

2MB

On

On

Off

Off

On

On

On

Off

Off

Off

2.5MB

On

On

Off

Off

Off

On

Off

On

On

On

3MB

On

Off

On

On

On

On

Off

On

On

Off

3.5MB

On

Off

On

On

Off

On

Off

On

Off

On

4MB

On

Off

On

Off

On

On

Off

On

Off

Off

4.5MB

On

Off

On

Off

Off

On

Off

Off

On

On

5MB

On

Off

Off

On

On

On

Off

Off

On

Off

DRAM SWITCH CONFIGURATION (CON’T)

Size

S1/1

S1/2

S1/3

S1/4

S1/5

S2/1

S2/2

S2/3

S2/4

S2/5

5.5MB

On

Off

Off

On

Off

On

Off

Off

Off

On

6MB

On

Off

Off

Off

On

On

Off

Off

Off

Off

6.5MB

On

Off

Off

Off

Off

Off

On

On

On

On

7MB

Off

On

On

On

On

Off

On

On

On

Off

7.5MB

Off

On

On

On

Off

Off

On

On

Off

On

8MB

Off

On

On

Off

On

Off

On

On

Off

Off

8.5MB

Off

On

On

Off

Off

Off

On

Off

On

On

9MB

Off

On

Off

On

On

Off

On

Off

On

Off

9.5MB

Off

On

Off

On

Off

Off

On

Off

Off

On

10MB

Off

On

Off

Off

On

Off

On

Off

Off

Off

10.5MB

Off

On

Off

Off

Off

Off

Off

On

On

On

11MB

Off

Off

On

On

On

Off

Off

On

On

Off

11.5MB

Off

Off

On

On

Off

Off

Off

On

Off

On

12MB

Off

Off

On

Off

On

Off

Off

On

Off

Off

12.5MB

Off

Off

On

Off

Off

Off

Off

Off

On

On

13MB

Off

Off

Off

On

On

Off

Off

Off

On

Off

13.5MB

Off

Off

Off

On

Off

Off

Off

Off

Off

On

14MB

Off

Off

Off

Off

On

N/A

N/A

N/A

N/A

N/A