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PC 5500

DIGITAL EQUIPMENT CORPORATION

PC 5500

Device Type

Mainboard

Processor

Pentium II

Processor Speed

233/266/300/333/366/400MHz

Chip Set

Intel

Video Chip Set

ESS

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

2MB

Cache

512KB (located on Pentium II CPU)

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options (CPU)

Parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, USB connectors (2)

I/O Options (backplane)

32-bit PCI slots (3), IDE interfaces (2), floppy drive interface, game/MIDI port, parallel port, 100Base-T connector, 10Base-2 connector, audio in - CD-ROM, fax/modem connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port

CN1

PS/2 mouse port

CN6

Serial port

CN2

Parallel port

CN7

USB connector 1

CN3

VGA feature connector

CN8

USB connector 2

CN4

Video upgrade connectors

CN9

VGA port

CN5

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Boot block update disabled

J27

Pins 1 & 2 closed

 

Boot block update enabled

J27

Pins 2 & 3 closed

»

Password disabled

SW1/5

Off

 

Password enabled

SW1/5

On

»

BIOS normal operation

SW1/6

Off

 

BIOS recovery mode

SW1/6

On

»

CMOS memory normal operation

SW1/7

Off

 

CMOS memory clear

SW1/7

On

SIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

32MB

(2) 4M x 36

None

None

None

32MB

(2) 2M x 36

(2) 2M x 36

None

None

32MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

40MB

(2) 4M x 36

(2) 1M x 36

None

None

48MB

(2) 4M x 36

(2) 2M x 36

None

None

48MB

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

None

64MB

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

None

None

64MB

(2) 4M x 36

(2) 4M x 36

None

None

72MB

(2) 8M x 36

(2) 1M x 36

None

None

80MB

(2) 8M x 36

(2) 2M x 36

None

None

96MB

(2) 8M x 36

(2) 4M x 36

None

None

96MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

None

128MB

(2) 16M x 36

None

None

None

128MB

(2) 8M x 36

(2) 8M x 36

None

None

128MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

SIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

136MB

(2) 16M x 36

(2) 1M x 36

None

None

144MB

(2) 16M x 36

(2) 2M x 36

None

None

152MB

(2) 16M x 36

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

160MB

(2) 16M x 36

(2) 4M x 36

None

None

176MB

(2) 16M x 36

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

192MB

(2) 16M x 36

(2) 8M x 36

None

None

192MB

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

None

224MB

(2) 16M x 36

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

256MB

(2) 32M x 36

None

None

None

256MB

(2) 16M x 36

(2) 16M x 36

None

None

256MB

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Note: 512KB cache is located on the Pentium II CPU.

VIDEO MEMORY CONFIGURATION

Note: 1MB video memory is factory installed and is not configurable. To increase to 2MB, install upgrade module at CN9.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

SW1/8

233MHz

66MHz

3.5x

On

Off

Off

On

On

266MHz

66MHz

4x

On

On

On

Off

On

300MHz

66MHz

4.5x

On

Off

On

Off

On

333MHz

66MHz

5x

On

On

Off

Off

On

366MHz

66MHz

5.5x

On

Off

Off

Off

On

400MHz

66MHz

6x

On

On

On

On

Off

CONNECTIONS

Purpose

Location

Purpose

Location

Logic board connectors

CN1

Chassis fan power

CN8

Power connector

CN2

5v power connector

CN9

IDE interface 1

CN3

Game/MIDI port

CN10

IDE interface 2

CN4

Audio in – CD-ROM

CN11

Floppy drive interface

CN5

Audio connector

CN12

100Base-T connector

CN6

32-bit PCI slots

PC1 – PC3

10Base-T/10Base-2 connector

CN7