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PC 386SX CE (P3348)

DIGITAL EQUIPMENT CORPORATION

PC 386SX CE (P3348)

Processor

80386SX

Processor Speed

20MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

8MB

Maximum Video Memory

Unidentified

Cache

None

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options

Floppy drive interfaceIDE interface, parallel port, serial ports (2), VGA feature connector, VGA port, TTL video port, riser slot

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Floppy drive interface

J2

VGA port

J8

IDE interface

J3

TTL video port

J9

Parallel port

J5

Front panel connector

J20

Serial port 2

J6

VGA feature connector

JY1

Serial port 1

J7

Riser slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Normal mode enabled

SW1/1

Off

 

Manufacturing mode enabled

SW1/1

On

Normal mode enabled

SW1/2

Off

 

Burn in mode enabled

SW1/2

On

 

Video speed select fast

SW1/3

Off

 

Video speed select slow

SW1/3

On

 

Monitor type select monochrome

SW1/4

Off

 

Monitor type select color

SW1/4

On

 

On board video enabled

SW1/5

On

 

On board video disabled

SW1/5

Off

 

Floppy drive interface enabled

SW1/6

On

 

Floppy drive interface disabled

SW1/6

Off

 

IDE interface enabled

SW1/7

On

 

IDE interface disabled

SW1/7

Off

Factory configured - do not alter

SW1/8

Unidentified

Factory configured - do not alter

SW2/6

Unidentified

Clock signal to NPU equals CPU

W2

Pins 2 & 3 closed

 

Clock signal to NPU does not equal CPU

W2

Pins 1 & 2 closed

 

NPU synchronous with CPU

W3

Closed

 

NPU asynchronous with CPU

W3

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(1) 256K x 36

None

2MB

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

None

5MB

(1) 256K x 36

(1) 1M x 36

8MB

(1) 1M x 36

(1) 1M x 36

VIDEO SELECTION (VGA CONTROLLER ONLY ADAPTER IN SYSTEM)

Monitor

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

On

Off

Off

On

Off

Off

ED 350 line

Off

On

On

Off

Off

ED 200 line

On

On

On

Off

Off

CD 80 x 25

Off

Off

Off

On

Off

CD 40 x 25

On

Off

Off

On

Off

Analog

N/A

N/A

N/A

N/A

On

VIDEO SELECTION (VGA CONTROLLER AS PRIMARY ADAPTER)

Primary

Secondary

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

Monochrome

Color 80 x 25 or none

Off

Off

On

Off

Off

Monochrome

Color 40 x 25 or none

On

Off

On

Off

Off

Enhanced 350 line

Monochrome or none

Off

On

On

Off

Off

Enhanced 200 line

Monochrome or none

On

On

On

Off

Off

Color 80 x 25

Monochrome or none

Off

Off

Off

On

Off

Color 40 x 25

Monochrome or none

On

Off

Off

On

Off

VIDEO SELECTION(VGA CONTROLLER AS SECONDARY ADAPTER)

Primary

Secondary

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

Color 80 x 25

Monochrome

Off

On

Off

On

Off

Color 40 x 25

Monochrome

On

On

Off

On

Off

Monochrome

Enhanced 350 line

Off

Off

On

On

Off

Monochrome

Enhanced 200 line

On

Off

On

On

Off

Monochrome

Color 80 x 25

Off

On

On

On

Off

Monochrome

Color 40 x 25

On

On

On

On

Off