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NLXP55

MOTOROLA, INC.

NLXP55

Device Type

Mainboard

Processor

Pentium MMX

Processor Speed

233/266/300MHz

Chip Set

Intel 430HX

Video Chip Set

Cirrus Logic

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

Unidentified

Cache

512KB

BIOS

Unidentified

Dimensions

284mm x 229mm

I/O Options

Ethernet 10BaseT connector, floppy drive interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, USB connector, line in, line out, microphone in

CONNECTIONS

Purpose

Location

Purpose

Location

Line out

J1

VMI host port connector

J25

Line in

J2

PS/2 mouse port

J27

Microphone in

J3

VGA feature connector

J28

CompactFlash connector

J5

PCI debug connector

J32

Auxiliary connector

J8

Parallel port

J33A

Ethernet 10BaseT connector

J9

VGA port

J33B

USB connector

J14

Serial port 1

J33C

Serial port 2

J18

PCI debug connector

J34

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CompactFlash device select master

J4

Closed

 

CompactFlash device select slave

J4

Open

»

Battery not installed

J6

Pins 2 & 3 closed

 

Battery installed

J6

Pins 1 & 2 closed

»

Speaker tone enabled

J7

Pins 2 & 3 closed

 

NLX modem tone enabled

J7

Pins 1 & 2 closed

»

GIO2 signal enabled

J10

Open

 

GIO2 signal disabled

J10

Closed

»

CMOS memory normal operation

J12

Open

 

CMOS memory clear

J12

Closed

»

Speaker enabled

J13

Closed

 

Speaker disabled

J13

Open

»

GIO0 signal enabled

J15

Open

 

GIO0 signal disabled

J15

Closed

»

Boot block write protect disabled

J16

Pins 2 & 3 closed

 

Boot block write protect enabled

J16

Pins 1 & 2 closed

»

Flash BIOS write protect disabled

J17

Open

 

Flash BIOS write protect enabled

J17

Closed

»

Standard PC tone enabled

J20

Pins 3 & 5, 4 & 6 closed

 

Tone from audio IC enabled

J20

Pins 1 & 3, 2 & 4 closed

»

Watchdog timer disabled

J26

Open

 

Watchdog timer enabled

J26

Closed

»

On board video enabled

J29

Open

 

On board video disabled

J29

Closed

USER CONFIGURABLE SETTINGS (CON’T)

Function

Label

Position

»

Video port device not installed

J30

Open

 

Video port device installed

J30

Closed

»

VGA feature connector enabled

J31

Closed

 

VGA feature connector disabled

J31

Open

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

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 EDO 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

J22

J23

J24

233MHz

66MHz

3.5x

Open

Open

Open

266MHz

66MHz

4x

Closed

Open

Closed

300MHz

66MHz

4.5x

Closed

Closed

Closed

CPU VOLTAGE SELECTION

Voltage

J11

 

2.2v

Pins 3 & 4 closed

»

2.8v

Pins 7 & 8 closed