COMPAQ COMPUTER CORPORATION

DESKPRO 4000N, 4000S

Device Type

Mainboard

Processor

Pentium MMX

Processor Speed

166/200/233MHz

Chip Set

VIA

Video Chip Set

S3

Maximum Onboard Memory

256MB (SDRAM supported)

Maximum Video Memory

2MB

Cache

256KB

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options

Ethernet AUI connector, Ethernet 10BaseT connector, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot, USB connectors (2), ATX power connector, CD-ROM interface, LS-120 connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Floppy drive interface

J1

VGA port

CN1

Audio connector

J11

PS/2 mouse port

CN2

External battery

P14/pins 9 - 12

Ethernet AUI connector

CN3

Ethernet AUI connector

P15

Ethernet 10BaseT connector

CN4

Power cable/LED connector

P16

Serial port

CN5

IDE interface 1

P20

Serial port

CN6

LS-120 connector

P21

Parallel port

CN7

CD-ROM interface

P25

USB connector

CN8

Riser slot

SL1

USB connector

CN9

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation

P14/pins 1 & 2

Closed

 

CMOS memory clear

P14/pins 1 & 2

Open

 

Password enabled

SW1/1

Off

 

Password disabled

SW1/1

On

DIMM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(1) 1M x 64

None

16MB

(1) 2M x 64

None

16MB

(1) 1M x 64

(1) 1M x 64

24MB

(1) 2M x 64

(1) 1M x 64

32MB

(1) 4M x 64

None

32MB

(1) 2M x 64

(1) 2M x 64

40MB

(1) 4M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

64MB

(1) 8M x 64

None

64MB

(1) 4M x 64

(1) 4M x 64

72MB

(1) 8M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

128MB

(1) 16M x 64

None

128MB

(1) 8M x 64

(1) 8M x 64

DIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

136MB

(1) 16M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

160MB

(1) 16M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

Note: Board accepts SDRAM memory.

CACHE CONFIGURATION

Note: The location of the cache is unidentified.

VIDEO MEMORY CONFIGURATION

Note: The location of the video memory is unidentified.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

166MHz

66MHz

2.5x

On

On

Off

On

Off

200MHz

66MHz

3x

Off

On

Off

On

Off

233MHz

66MHz

3.5x

Off

Off

Off

On

Off