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PC 486 CE

DIGITAL EQUIPMENT CORPORATION

PC 486 CE

Processor

80486

Processor Speed

25/33MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

None

BIOS

Unidentified

Dimensions

350mm x 329mm

I/O Options

External memory slots (2), floppy drive interface, IDE interface, parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

J12

Speaker

J17

Serial port

J13

Power LED & keylock

J18

Serial port

J14

Reset switch

J19

IDE interface

J15

LED connector

J20

Floppy drive interface

J16

External memory cards

SL1 & SL2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Speaker volume select normal volume

W3

Open

 

Speaker volume select low volume

W3

Closed

»

IDE interface enabled

W5

Open

 

IDE interface disabled

W5

Closed

»

I/O recovery time select extra time provided

W14

Closed

 

I/O recovery time select no extra time provided

W14

Open

 

Monitor type select color

SW1/1

On

 

Monitor type select monochrome

SW1/1

Off

»

Factory configured - do not alter

SW1/2

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

None

None

None

8MB

(1) 2M x 36

None

None

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

12MB

(1) 2M x 36

(1) 1M x 36

None

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 4M x 36

None

None

None

16MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 2M x 36

(1) 2M x 36

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

20MB

(1) 4M x 36

(1) 1M x 36

None

None

20MB

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

20MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

None

20MB

(1) 1M x 36

(1) 4M x 36

None

None

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

None

24MB

(1) 4M x 36

(1) 2M x 36

None

None

24MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

None

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

28MB

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

32MB

(1) 8M x 36

None

None

None

32MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

None

32MB

(1) 4M x 36

(1) 4M x 36

None

None

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

36MB

(1) 8M x 36

(1) 1M x 36

None

None

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

None

40MB

(1) 8M x 36

(1) 2M x 36

None

None

40MB

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

44MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

None

48MB

(1) 8M x 36

(1) 4M x 36

None

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

52MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

56MB

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

56MB

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

None

64MB

(1) 8M x 36

(1) 8M x 36

None

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

Note: To use 128MB, install two fully populated memory cards in SL1 & SL2. If only one card is used, install in SL1.

CPU SPEED SELECTION

Speed

W13

25MHz

Closed

33MHz

Open

IDE CONTROLLER SELECTION

Setting

W6

W8

W11

»

Enabled

Open

Closed

Closed

 

Disabled

Closed

Open

Open

BURN IN MODE SELECTION

Setting

W4

W7

»

Disabled

Open

Closed

 

Enabled

Closed

Open