NEC PowerMate Enterprise User manual

First Printing — November 1997
Copyright 1997
NEC Computer Systems Division
Packard Bell NEC, Inc.
1414 Massachusetts Avenue
Boxborough, MA 01719-2298
All Rights Reserved
PROPRIETARY NOTICE AND LIABILITY DISCLAIMER
The information disclosed in this document, including all designs and related materials, is
the valuable property of NEC Computer Systems Division, Packard Bell NEC, Inc.
(hereinafter “NECCSD, PB NEC”) and/or its licensors. NECCSD and/or its licensors, as
appropriate, reserve all patent, copyright and other proprietary rights to this document, in-
cluding all design, manufacturing, reproduction, use, and sales rights thereto, except to the
extent said rights are expressly granted to others.
The NECCSD product(s) discussed in this document are warranted in accordance with the
terms of the Warranty Statement accompanying each product. However, actual
performance of each such product is dependent upon factors such as system configuration,
customer data, and operator control. Since implementation by customers of each product
may vary, the suitability of specific product configurations and applications must be
determined by the customer and is not warranted by NECCSD.
To allow for design and specification improvements, the information in this document is
subject to change at any time, without notice. Reproduction of this document or portions
thereof without prior written approval of NECCSD is prohibited.
FaxFlash is a service mark of NEC Computer Systems Division (NECCSD), Packard Bell NEC, Inc.
NEC, MultiSync, and PowerMate are registered trademarks of NEC Corporation, used under license.
NEC MagicEye is a trademark of Packard Bell NEC, Inc.
All other product, brand, or trade names used in this publication are the trademarks or registered trademarks of their respective trademark
owners.

xvii
Preface
This manual contains technical information necessary for servicing and repairing the NEC
PowerMateEnterprise computer from NEC Computer Systems Division, Packard Bell
NEC, Inc. It contains hardware and interface information for users who need an overview
of system design. The manual also includes system setup information, procedures for
installing options, and illustrated parts lists. The manual is written for NECCSD-trained
customer engineers, system analysts, service center personnel, and dealers.
The manual is organized as follows:
Section 1 — Technical Information provides an overview of computer features and
options, hardware design, interface ports, and internal devices. System specifications are
listed including dimensions, weight, environment, safety compliance, power consumption,
and memory.
Section 2 — Setup and Operation includes unpacking, setup, and operation information.
Procedures are also included for configuring the system with the BIOS Setup utility, setting
passwords, using power management and security features, reinstalling the operating system
or software, and using the BIOS Update utility.
Section 3 — Option Installation provides installation procedures for adding optional
expansion boards, additional storage devices, system memory, or a processor upgrade.
Section 4 — Maintenance and Troubleshooting includes recommended maintenance
information, along with possible computer problems and their solutions, and the procedures
for battery replacement. NECCSD telephone numbers are provided for obtaining service,
accessing the NECCSD Bulletin Board System, and accessing the NECCSD FaxFlashSM
service.
Section 5 — Repair includes computer disassembly and reassembly procedures. Also
included are an exploded view diagram (Illustrated Parts Breakdown) and a parts list for
field-replaceable parts.
Appendix A — Connector Pin Assignments provides a list of system, riser, and option
board internal connector pin assignments and a list of external pin assignments for the
keyboard, mouse, serial ports, parallel port, network ports, and video port.
Appendix B —Jumper Settings provides jumper settings for the system board and hard
disk drive, and for options that may ship with the computer, including the CD-ROM reader,
the fax/modem board, the Zip drive, and the tape backup unit.

xix
Abbreviations
A ampere
AC alternating current
AT advanced technology (IBM PC)
ATA AT attachment
ATAPI AT attachment packet interface
BBS Bulletin Board System
BCD binary-coded decimal
BIOS basic input/output system
bit binary digit
BUU BIOS Upgrade Utility
bpi bits per inch
bps bits per second
C capacitance
C centigrade
Cache high-speed buffer storage
CAM constantly addressable memory
CAS column address strobe
CD-ROM compact disk-ROM
CG character generator
CGA Color Graphics Adapter
CGB Color Graphics Board
CH channel
clk clock
cm centimeter
CMOS complementary metal oxide
semiconductor
COM communication
CONT contrast
CPGA ceramic pin grid array
CPU central processing unit
DAC digital-to-analog converter
DACK DMA acknowledge
DC direct current
DIMM Dual In-Line Memory Module
DIP dual in-line package
DLAB Divisor Latch Address bit
DMA direct memory access
DMAC DMA controller
DOS disk operating system
DRAM dynamic RAM
ECC error checking and correction
EDO extended data output
EGA Enhanced Graphics Adapter
EPROM erasable and programmable ROM
EVGA Enhanced Video Graphics Array
F Fahrenheit
FAX facsimile transmission
FCC Federal Communications
Commission
FG frame ground
FM frequency modulation
FP fast page
FRU field-replaceable unit
GB gigabyte
GND ground
HEX hexadecimal
HGA Hercules Graphics Adapter
Hz hertz
IC integrated circuit
ID identification
IDE intelligent device electronics
IDTR interrupt descriptor table register
in. inch
INTA interrupt acknowledge
IPB illustrated parts breakdown
IR infrared
IRR Interrupt Request register
ISA Industry Standard Architecture
ISR In Service register
I/O input/output
IPC integrated peripheral controller
ips inches per second
IRQ interrupt request
K kilo (1024)

xx Abbreviations
k kilo (1000)
KB kilobyte
kg kilogram
kHz kilohertz
lb pound
LED light-emitting diode
LSB least-significant bit
LSI large-scale integration
M mega
mA milliamps
max maximum
MB megabyte
MDA Monochrome Display Adapter
MFM modified frequency modulation
MHz megahertz
MPEG Motion Picture Experts Group
mm millimeter
ms millisecond
MSB most-significant bit
NASC National Authorized Service
Center
NC not connected
NMI Non-maskable Interrupt
ns nanosecond
NSRC National Service Response Center
PAL programmable array logic
PC personal computer
PCB printed circuit board
PCI Peripheral Component
Interconnect
PDA personal digital assistant
PFP plastic flat package
PIO parallel input/output
pixel picture element
PLCC plastic leaded chip carrier
PLL phase lock loop
p-p peak-to-peak
PPI programmable peripheral
interface
PROM programmable ROM
QFP quad flat pack
RAM random-access memory
RAMDAC RAM digital-to-analog converter
RAS row address strobe
RGB red green blue
RGBI red green blue intensity
ROM read-only memory
rpm revolutions per minute
R read
RTC real-time clock
R/W read/write
S slave
SCSI Small Computer System Interface
SDRAM Synchronous Dynamic Random
Access memory
SG signal ground
SGRAM Synchronous Graphics Random
Access Memory
SIMM Single In-line Memory Module
SPM standard page mode
SRS Sound Retrieval System
SVGA Super Video Graphics Array
SW switch
TAC Technical Assistance Center
TSC Technical Support Center
TTL transistor/transistor logic
tpi tracks per inch
USB universal serial bus
V volt
Vac volts, alternating current
Vdc volts, direct current
VESA video electronics standards
association
VFC VESA-compliant feature
connector
VGA Video Graphics Array
VRAM video RAM
W watt
W write
WRAM Video Window RAM

iii
Contents
Page
Preface......................................................................................................................... xvii
Abbreviations............................................................................................................... xix
Section 1 Technical Information
System Overview......................................................................................................... 1-1
System Board .............................................................................................................. 1-6
Processor and Secondary Cache............................................................................ 1-10
System BIOS........................................................................................................ 1-10
I/O Addressing...................................................................................................... 1-11
System Memory.................................................................................................... 1-14
Hardware Monitor................................................................................................ 1-15
Interrupt Controller............................................................................................... 1-15
Plug and Play........................................................................................................ 1-17
NLX Chassis......................................................................................................... 1-17
ISA Bus................................................................................................................ 1-17
PCI Local Bus ...................................................................................................... 1-17
PCI/IDE Ports ...................................................................................................... 1-18
Parallel Interface................................................................................................... 1-18
Serial Interface...................................................................................................... 1-19
USB Interface....................................................................................................... 1-20
Infrared Interface.................................................................................................. 1-21
Graphics Capabilities............................................................................................. 1-21
Accelerated Graphics Port.............................................................................. 1-22
Graphics Controller........................................................................................ 1-22
Motion Video Controller................................................................................ 1-22
Video Support ............................................................................................... 1-23
Integrated Audio................................................................................................... 1-24
Diskette Drive.............................................................................................................. 1-24
Hard Disk Drive........................................................................................................... 1-25
Power Supply .............................................................................................................. 1-25
Keyboard..................................................................................................................... 1-25
Mouse ......................................................................................................................... 1-25
Speakers...................................................................................................................... 1-26

iv Contents
Fax/Modem Board....................................................................................................... 1-26
Video Board................................................................................................................ 1-26
Video Support ...................................................................................................... 1-27
Video Playback..................................................................................................... 1-27
CD-ROM Reader......................................................................................................... 1-28
PCMCIA Device.......................................................................................................... 1-28
Tape Backup Unit........................................................................................................ 1-28
Zip Drive ..................................................................................................................... 1-29
Sound Board................................................................................................................ 1-29
Network Boards .......................................................................................................... 1-30
SCSI Adapter Board.................................................................................................... 1-30
Specifications............................................................................................................... 1-31
Section 2 Setup and Operation
Unpacking and Repacking............................................................................................ 2-1
Setup........................................................................................................................... 2-2
System Controls........................................................................................................... 2-8
Power Button ....................................................................................................... 2-8
Suspend Button .................................................................................................... 2-9
Reset Button......................................................................................................... 2-9
CD-ROM Reader......................................................................................................... 2-9
The BIOS Setup Utility................................................................................................ 2-11
When to Use Setup............................................................................................... 2-12
How to Start Setup............................................................................................... 2-12
How to Use Setup................................................................................................. 2-13
Main Menu ........................................................................................................... 2-14
Displayed Information.................................................................................... 2-14
Language....................................................................................................... 2-14
System Time/Date.......................................................................................... 2-14
Floppy Options .............................................................................................. 2-15
Hard Disk Pre-Delay...................................................................................... 2-15
Primary and Secondary IDE........................................................................... 2-15
Advanced Menu.................................................................................................... 2-17
PnP O/S......................................................................................................... 2-17
Reset Configuration Data............................................................................... 2-17
Memory Cache............................................................................................... 2-17
Memory Banks 0, 1, and 2 ............................................................................. 2-18

Contents v
L2 Cache ECC Support.................................................................................. 2-18
Resource Configuration.................................................................................. 2-18
Peripheral Configuration ................................................................................ 2-19
Keyboard Configuration................................................................................. 2-21
Video Configuration....................................................................................... 2-21
DMI Event Logging....................................................................................... 2-21
Security Menu....................................................................................................... 2-22
User Password Is ........................................................................................... 2-22
Supervisor Password Is.................................................................................. 2-22
Set User or Supervisor Password................................................................... 2-22
Clear User Password...................................................................................... 2-23
Using a Password........................................................................................... 2-23
User Setup Access ......................................................................................... 2-23
Unattended Start............................................................................................ 2-24
Power Menu......................................................................................................... 2-24
Boot Menu ........................................................................................................... 2-24
Exit Menu............................................................................................................. 2-26
Maintenance Menu................................................................................................ 2-26
SCSI Select Utility....................................................................................................... 2-27
BIOS Update Utility .................................................................................................... 2-27
Downloading the BIOS Update Utility.................................................................. 2-27
Using the BIOS Update Utility.............................................................................. 2-29
Auto Insert Notification............................................................................................... 2-29
LANDesk Client Manager............................................................................................ 2-30
PC Health Indicator .............................................................................................. 2-30
Managing Workstations ................................................................................. 2-31
PC Health Meter............................................................................................ 2-31
PC Health Description.................................................................................... 2-31
Inventory.............................................................................................................. 2-32
DMI...................................................................................................................... 2-32
Monitoring Capabilities......................................................................................... 2-33
The Chassis Intrusion Notification Feature............................................................ 2-33
NEC Auto Backup................................................................................................ 2-34
NEC Select Install CD ................................................................................................. 2-34
Introducing Select Install Options ......................................................................... 2-34
Choosing a Restore Program................................................................................. 2-35
Rebuilding the Hard Disk and Restoring the Operating System.............................. 2-36

vi Contents
Auto Rebuild and Restore.............................................................................. 2-36
Custom Rebuild and Restore.......................................................................... 2-41
Restoring the Operating System............................................................................ 2-47
Restoring Applications.......................................................................................... 2-51
Using the NEC Select Install CD with a SCSI Drive.............................................. 2-53
Section 3 Option Installation
General Rules for Installing Options............................................................................. 3-2
Precautions.................................................................................................................. 3-2
System Unit Cover....................................................................................................... 3-3
Removing the System Unit Cover.......................................................................... 3-4
Replacing the System Unit Cover.......................................................................... 3-6
Expansion Boards........................................................................................................ 3-7
Expansion Slot Locations...................................................................................... 3-7
Expansion Board Installation................................................................................. 3-8
Expansion Board Removal.................................................................................... 3-10
System Board Options ................................................................................................. 3-11
Removing the System Board................................................................................. 3-12
Replacing the System Board.................................................................................. 3-14
AGP Video Board Removal and Replacement.............................................................. 3-16
Removing an AGP Video Board ........................................................................... 3-16
Replacing an AGP Video Board............................................................................ 3-17
DIMM Memory Module Upgrade................................................................................ 3-18
Checking System Memory..................................................................................... 3-18
Removing a DIMM............................................................................................... 3-19
Installing a DIMM ................................................................................................ 3-20
Data Storage Devices................................................................................................... 3-21
Device Slots.......................................................................................................... 3-21
Device Preparation................................................................................................ 3-22
Device Cables....................................................................................................... 3-24
Diskette Drive Signal Cable............................................................................ 3-25
IDE Signal Cables.......................................................................................... 3-26
SCSI Signal Cable.......................................................................................... 3-27
System Power Cables..................................................................................... 3-28
Device Cabling...................................................................................................... 3-29
Cabling an IDE Device................................................................................... 3-29
Cabling a Diskette Drive ................................................................................ 3-30

Contents vii
Cabling an Internal SCSI Device .................................................................... 3-31
5 1/4-Inch Storage Device Installation................................................................... 3-32
Removing the Front Panel.............................................................................. 3-32
Installing a 5 1/4-Inch Device......................................................................... 3-35
Replacing the Front Panel............................................................................... 3-37
3 1/2-Inch Hard Disk Drive Installation................................................................. 3-38
Removing a 3 1/2-Inch Internal Device........................................................... 3-38
Installing a 3 1/2-Inch Internal Device............................................................ 3-39
Diskette Drive Installation..................................................................................... 3-40
Removing a 3 1/2-Inch Diskette Drive............................................................ 3-40
Installing a 3 1/2-Inch Diskette Drive............................................................. 3-41
External Options.......................................................................................................... 3-41
Connecting a Parallel Printer................................................................................. 3-42
Connecting an RS-232C Device............................................................................ 3-43
Connecting a USB Device..................................................................................... 3-44
Connecting an Optional External Wide SCSI Device............................................. 3-44
Section 4 Maintenance and Troubleshooting
Online Services............................................................................................................ 4-2
NECCSD FaxFlash Service................................................................................... 4-2
NECCSD Bulletin Board System .......................................................................... 4-3
E-Mail/Fax Technical Support Services................................................................. 4-4
Internet................................................................................................................. 4-5
Maintenance ................................................................................................................ 4-6
System Cleaning.................................................................................................... 4-6
Keyboard Cleaning................................................................................................ 4-7
Mouse Cleaning.................................................................................................... 4-8
Troubleshooting........................................................................................................... 4-9
Diagnosing and Solving Problems ......................................................................... 4-9
Replacing the CMOS Battery................................................................................ 4-14
Section 5 Repair
Disassembly and Reassembly........................................................................................ 5-1
System Unit Cover Removal ................................................................................. 5-2
Removing the AGP Video Board .......................................................................... 5-3
Expansion Board Removal.................................................................................... 5-4
Front Panel Removal............................................................................................. 5-5

viii Contents
Blank Panel and Metal Slot Cover Removal .......................................................... 5-6
Card Guide Removal............................................................................................. 5-7
Switch Board/IR Panel Removal........................................................................... 5-8
DIMM Removal.................................................................................................... 5-9
Processor Subsystem Removal.............................................................................. 5-10
5 1/4-Inch Device Removal................................................................................... 5-11
3 1/2-Inch Hard Disk Drive Removal .................................................................... 5-13
3 1/2-Inch Diskette Drive Removal ....................................................................... 5-14
Power Supply Removal......................................................................................... 5-15
System Board Removal......................................................................................... 5-16
Plastic Rail Removal ...................................................................................... 5-18
Riser Board Removal............................................................................................ 5-19
Illustrated Parts Breakdown......................................................................................... 5-20
Appendix A Connector Pin Assignments
System Board Connector Locations ............................................................................. A-1
Riser Board Connector Locations ................................................................................ A-3
Parallel Interface Connector......................................................................................... A-5
Serial Interface Connectors.......................................................................................... A-6
Keyboard and Mouse Connectors................................................................................. A-7
Universal Serial Bus Connectors .................................................................................. A-7
VGA Interface Connector............................................................................................ A-8
Microphone In Connector............................................................................................ A-9
Line In Connector........................................................................................................ A-9
Line Out Connector..................................................................................................... A-9
DIMM Connectors.......................................................................................................A-10
Storage Device Connectors..........................................................................................A-12
Diskette Drive Connector......................................................................................A-12
IDE Connectors....................................................................................................A-13
Wake on Lan Connector ..............................................................................................A-14
Fan Connector.............................................................................................................A-14
Chassis Intrusion Detection Connector.........................................................................A-14
Front Panel/IrDA Connector........................................................................................A-15
ISA Connectors...........................................................................................................A-16
PCI Connectors ...........................................................................................................A-17
CD Audio In Connector...............................................................................................A-18
Modem In Connector...................................................................................................A-18

Contents ix
Riser Board NLX Connector P1 (PCI Segment)........................................................... A-19
Riser Board NLX Connector P1 (ISA Segment) ..........................................................A-22
Riser Board NLX Connector P1 (IDE, Diskette Drive, and Front Panel Segment)........A-26
Riser Board NLX Connector JP2 (Supplemental Connector Segment) .........................A-31
Power Supply Connectors............................................................................................A-32
Network Connectors....................................................................................................A-33
RJ-45 Connectors .................................................................................................A-33
AUI Port Connector..............................................................................................A-34
Appendix B Jumper Settings
System Board Jumper Settings..................................................................................... B-1
Password Clear/CPU Speed Jumper...................................................................... B-2
BIOS Recovery Jumpers....................................................................................... B-3
Hard Disk Drive Jumper Settings................................................................................. B-3
Seagate Medalist................................................................................................... B-3
Quantum Fireball Stratus....................................................................................... B-3
Seagate Barracuda................................................................................................ B-4
Quantum Viking.................................................................................................... B-5
CD-ROM Jumper Settings........................................................................................... B-5
NEC 24X CD-ROM Reader.................................................................................. B-5
Lite-ON 24X CD-ROM Reader ............................................................................ B-6
Goldstar 24X CD-ROM Reader............................................................................ B-6
56-Kbps Fax/Modem Board Jumper Settings ............................................................... B-6
Zip Drive Jumper Settings............................................................................................ B-7
Tape Backup Unit Jumper Settings .............................................................................. B-7
Glossary
Index
Figures
1-1 PowerMate Enterprise Desktop Components ................................................. 1-1
1-2 PowerMate Enterprise Desktop Front View................................................... 1-3
1-3 PowerMate Enterprise Desktop Rear View .................................................... 1-4

x Contents
2-1 Voltage Selector Switch................................................................................. 2-2
2-2 Peripheral Connections................................................................................... 2-3
2-3 Fax/Modem Connections................................................................................ 2-3
2-4 Nine-Watt Speaker......................................................................................... 2-4
2-5 Right Speaker Connections ............................................................................ 2-5
2-6 Audio Connectors on the System Board......................................................... 2-6
2-7 Audio Connectors on a Sound Board ............................................................. 2-6
2-8 Network Connectors...................................................................................... 2-7
2-9 Buttons, Lamps, and the IR Window.............................................................. 2-8
2-10 Basic CD-ROM Reader Controls and Indicators............................................. 2-10
2-11 Setup Main Menu........................................................................................... 2-13
2-12 Welcome Screen ............................................................................................ 2-37
2-13 Restore Mode Screen Auto....................................................................... 2-38
2-14 Partition Information Screen .......................................................................... 2-39
2-15 FAT16 Partition Screen.................................................................................. 2-40
2-16 Installing Application Screen.......................................................................... 2-40
2-17 Welcome Screen ............................................................................................ 2-42
2-18 Restore Mode Screen Custom................................................................... 2-43
2-19 Partitioning the Hard Drive Screen................................................................. 2-43
2-20 Format Mode Screen...................................................................................... 2-44
2-21 Installing Application Screen.......................................................................... 2-44
2-22 Partition Information Screen .......................................................................... 2-45
2-23 FAT16 Partition Screen.................................................................................. 2-46
2-24 Installing Application Screen.......................................................................... 2-46
2-25 Welcome Screen ............................................................................................ 2-48
2-26 Restore Mode Screen Fix OS.................................................................... 2-49
2-27 Fix OS Screen................................................................................................ 2-49
2-28 Installing Application Screen.......................................................................... 2-50
2-29 Selective Application Restore Screen ............................................................. 2-52
3-1 Inside the System Unit ................................................................................... 3-1
3-2 Loosening Cover Screws................................................................................ 3-4
3-3 Removing the Cover ...................................................................................... 3-5
3-4 Aligning the Cover......................................................................................... 3-6
3-5 Locating Expansion Slots............................................................................... 3-7
3-6 Removing a Slot Cover.................................................................................. 3-9
3-7 Removing an Expansion Board....................................................................... 3-10

Contents xi
3-8 System Board Sockets and Connectors .......................................................... 3-11
3-9 Removing an AGP Video Board..................................................................... 3-12
3-10 Insertion/Extraction Latch.............................................................................. 3-13
3-11 Removing the System Board.......................................................................... 3-13
3-12 Replacing the System Board........................................................................... 3-14
3-13 Replacing an AGP Video Board..................................................................... 3-15
3-14 Removing an AGP Video Board..................................................................... 3-16
3-15 Installing an AGP Video Board...................................................................... 3-17
3-16 Removing a DIMM...................................................................................... 3-19
3-17 Inserting a DIMM........................................................................................ 3-20
3-18 Data Storage Slots......................................................................................... 3-22
3-19 Riser Board Cable Connectors ....................................................................... 3-24
3-20 Diskette Drive Signal Cable............................................................................ 3-25
3-21 IDE Signal Cable ........................................................................................... 3-26
3-22 SCSI Signal Cable Connectors....................................................................... 3-27
3-23 Power Cable Connectors................................................................................ 3-28
3-24 Connecting IDE Device Cables ...................................................................... 3-29
3-25 Connecting 1.2-MB Diskette Drive Cables..................................................... 3-30
3-26 Connecting Internal SCSI Device Cables........................................................ 3-31
3-27 Removing the Front Panel.............................................................................. 3-32
3-28 Locating the Blank Panel Tabs....................................................................... 3-33
3-29 Locating the Breakaway Blank Panel.............................................................. 3-34
3-30 Attaching the Device Rails ............................................................................. 3-35
3-31 Inserting a Device .......................................................................................... 3-36
3-32 Aligning the Front Panel................................................................................. 3-37
3-33 Hard Disk Drive Screws................................................................................. 3-38
3-34 Diskette Drive Screws.................................................................................... 3-40
3-35 Connecting a Printer Cable............................................................................. 3-42
3-36 Connecting the RS-232C Cable...................................................................... 3-43
3-37 Connecting an External SCSI Device Cable.................................................... 3-44
4-1 Removing the Keyboard Enclosure................................................................. 4-7
4-2 Removing the Mouse Ball Cover.................................................................... 4-8
4-3 Locating the Battery....................................................................................... 4-15
4-4 Battery Removal ............................................................................................ 4-15

xii Contents
5-1 Removing the AGP Video Board ................................................................... 5-3
5-2 Expansion Board Removal............................................................................. 5-4
5-3 Front Panel Removal...................................................................................... 5-5
5-4 Blank Panel Removal ..................................................................................... 5-6
5-5 Locating the Breakaway Panel ....................................................................... 5-7
5-6 Locating the Switch Board/IR Panel............................................................... 5-8
5-7 Removing a DIMM........................................................................................ 5-9
5-8 Releasing the Processor Subsystem ................................................................ 5-10
5-9 Locating the Locking Tabs on the 5 1/4-Inch Device...................................... 5-11
5-10 Removing a 5 1/4-Inch Device ....................................................................... 5-12
5-11 Hard Disk Drive Screws................................................................................. 5-13
5-12 Diskette Drive Screws.................................................................................... 5-14
5-13 Power Supply Screws .................................................................................... 5-15
5-14 Unlatching the System Board......................................................................... 5-16
5-15 Removing the System Board.......................................................................... 5-17
5-16 Removing the System Board Plastic Rail........................................................ 5-18
5-17 Locating the Riser Board Screws ................................................................... 5-19
5-18 PowerMate Enterprise Pentium II Processor-Based Desktop Series
Illustrated Parts Breakdown........................................................................... 5-23
A-1 System Board External Connector Locations.................................................. A-1
A-2 System Board Internal Connector Locations................................................... A-2
A-3 Riser Board Cable Connector Locations......................................................... A-3
A-4 Board Connector Locations on the Riser Board.............................................. A-3
A-5 Parallel Interface Connector........................................................................... A-5
A-6 Serial Interface Connectors ............................................................................ A-6
A-7 PS/2-Style Keyboard and Mouse Interface Connectors................................... A-7
A-8 VGA Interface Connector.............................................................................. A-8
A-9 Main Power Connector ..................................................................................A-32
A-10 Optional Power Connector.............................................................................A-33
B-1 CPU Speed/Password Clear Jumper............................................................... B-2
B-2 Quantum Fireball Stratus Hard Disk Drive Jumper Locations......................... B-3

Contents xiii
Tables
1-1 PowerMate Enterprise Desktop System Configuration ................................... 1-4
1-2 System Board Feature Components................................................................ 1-8
1-3 System Memory Map..................................................................................... 1-11
1-4 I/O Address Map ........................................................................................... 1-12
1-5 Memory Configurations ................................................................................. 1-14
1-6 Interrupt Level Assignments........................................................................... 1-16
1-7 DMA Settings................................................................................................ 1-16
1-8 Parallel Port Addresses and Interrupt ............................................................. 1-18
1-9 Serial Port 1 Addresses and Interrupts............................................................ 1-19
1-10 Serial Port 2 Addresses and Interrupts............................................................ 1-20
1-11 ATI XPERT@Work 2D Display Modes and Refresh Rates............................ 1-23
1-12 ATI XPERT@Work 3D Display Modes......................................................... 1-23
1-13 System Board Specifications .......................................................................... 1-31
1-14 General Specifications.................................................................................... 1-32
1-15 Riser Board Specifications ............................................................................. 1-32
1-16 Mouse Specifications ..................................................................................... 1-33
1-17 Keyboard Specifications................................................................................. 1-33
1-18 System Unit Specifications............................................................................. 1-34
1-19 Diskette Drive Specifications.......................................................................... 1-35
1-20 1-GB Seagate Medalist EIDE Hard Disk Drive Specifications........................ 1-36
1-21 2.1-GB Quantum Fireball ST Hard Disk Drive Specifications......................... 1-37
1-22 3.2-GB Quantum Fireball ST Hard Disk Drive Specifications......................... 1-38
1-23 4.3-GB Quantum Fireball ST Hard Disk Drive Specifications......................... 1-39
1-24 6.4-GB Quantum Fireball ST Hard Disk Drive Specifications......................... 1-40
1-25 4.5-GB Quantum Viking Ultra Wide SCSI-3 Hard Disk Drive Specifications . 1-41
1-26 4.5-GB Seagate Barracuda Ultra Wide SCSI Hard Disk Drive Specifications. 1-42
1-27 Lite-ON 24X CD-ROM Reader Specifications............................................... 1-43
1-28 Lucky Goldstar 24X CD-ROM Reader Specifications .................................... 1-44
1-29 NEC 24X CD-ROM Reader Specifications .................................................... 1-45
1-30 Fax/Modem Board Specifications................................................................... 1-46
1-31 Number Nine Video Board Specifications ...................................................... 1-46
1-32 Sound Board Specifications............................................................................ 1-47
1-33 3COM 3C905-TX Network Board Specifications .......................................... 1-48
1-34 3COM 3C509B-COMBO Network Board Specifications............................... 1-48
1-35 NLX200 Watt Power Supply Specifications................................................... 1-49
1-36 PCMCIA Device Specifications...................................................................... 1-49

xiv Contents
1-37 Tape Backup Unit Specifications.................................................................... 1-50
1-38 Zip Drive Specifications................................................................................. 1-51
1-39 Speaker Specifications ................................................................................... 1-51
2-1 Navigation Keys............................................................................................. 2-13
3-1 DIMM Options.............................................................................................. 3-18
3-2 IDE Connector Configuration ........................................................................ 3-23
4-1 NECCSD Service and Support Telephone Numbers....................................... 4-1
4-2 Problems and Solutions.................................................................................. 4-9
5-1 PowerMate Enterprise Disassembly Sequence................................................ 5-1
5-2 Ordering Parts and Options............................................................................ 5-20
5-3 PowerMate Enterprise Pentium II Processor-Based Desktop Series FRU List 5-20
5-4 PowerMate Enterprise Pentium II Processor-Based Desktop Series
Documentation and Packaging ....................................................................... 5-23
A-1 System Board Connectors.............................................................................. A-2
A-2 Riser Board Connectors................................................................................. A-4
A-3 Option Board Connectors .............................................................................. A-4
A-4 Parallel Interface Pin Assignments.................................................................. A-5
A-5 Serial Interface Pin Assignments..................................................................... A-6
A-6 Keyboard and Mouse Pin Assignments........................................................... A-7
A-7 Universal Serial Bus Connector Pin Assignments............................................ A-7
A-8 VGA Interface Connector Pin Assignments.................................................... A-8
A-9 Microphone In Connector Pin Assignments.................................................... A-9
A-10 Line In Connector Pin Assignments................................................................ A-9
A-11 Line Out Connector Pin Assignments............................................................ A-9
A-12 DIMM Socket Pin Assignments .....................................................................A-10
A-13 Diskette Drive Pin Assignments......................................................................A-12
A-14 IDE Interface Pin Assignments.......................................................................A-13
A-15 Wake On LAN Connector Pin Assignments....................................................A-14
A-16 Fan Connector Pin Assignments .....................................................................A-14
A-17 Chassis Intrusion Connector Pin Assignments................................................A-14
A-18 Front Panel/IrDA Connector Pin Assignments................................................A-15
A-19 ISA Bus Pin Assignments...............................................................................A-16
A-20 PCI Bus Pin Assignments...............................................................................A-17
A-21 CD Audio In Connector Pin Assignments.......................................................A-18

Contents xv
A-22 Modem In Connector Pin Assignments...........................................................A-18
A-23 NLX Connector P1 Pin Assignments (PCI Segment).....................................A-19
A-24 NLX Connector P1 Pin Assignments (ISA Segment).....................................A-22
A-25 NLX Connector P1 Pin Assignments (IDE, Diskette Drive, and
Front Panel Segment).....................................................................................A-26
A-26 NLX Connector JP2 Pin Assignments (Supplemental Connector Segment).....A-31
A-27 Main Power Connector Pin Assignments........................................................A-32
A-28 Optional Power Connector Pin Assignments...................................................A-33
A-29 RJ-45 Connector Pin Assignments.................................................................A-33
A-30 AUI Port Connector Pin Assignments ............................................................A-34

Section 1
Technical Information
SYSTEM OVERVIEW
NEC PowerMateEnterprise desktop computers are built-to-order systems for commercial
offices. All models come with in-demand features including three DIMM sockets, SDRAM
system memory, an IntelPentiumII processor with MMXtechnology, and a Plug and
Play I/O controller. The computer features one USB port, two serial ports, a parallel port,
and an infrared port. Ultra DMA, remote wakeup (“Wake on LAN”), AGP or PCI 3D
graphics, and power management are supported. The system is designed in conformance
with NLX standards so the system board is free of internal cabling and secured in the
chassis with a simple latch.
Build choices include IDE hard disk drives ranging from 1.0 GB to 6.4 GB, and an ultra
wide SCSI 4.55-GB hard disk drive. System memory configurations range from 32 MB to
384 MB, in 32-MB, and (as available) 64-MB, and 128-MB DIMM sticks. Additional
choices include expansion boards for fax/modem, sound, video, and networking, as well as
peripheral devices such as a CD-ROM reader.
Figure 1-1 shows the components shipped with the PowerMate Enterprise desktop system
(the speakers are optional).
Figure 1-1 PowerMate Enterprise Desktop Components

1-2 Technical Information
The basic hardware features for the PowerMate Enterprise desktop are listed below:
 Intel NX440LX system board

Intel Pentium II 233-MHz MMX processor
Intel Pentium II 266-MHz MMX processor
Intel Pentium II 300-MHz MMX processor

three 168-pin DIMM sockets; system memory starts at a minimum of 32 MB
using 32-MB, and (as available) 64-MB or 128-MB sticks; upgradeable to
384 MB

Accelerated Graphics Port (AGP) connector integrated on system board for
support of AGP-compatible video boards
 512-KB pipeline burst cache memory
 RJ-45-compatible Ethernet local area network (LAN) connector
 1.0-GB, 2.1-GB, 3.2-GB, 4.3-GB, or 6.4-GB IDE hard disk drive, or 4.55-GB
SCSI hard disk drive

1.44-MB diskette drive
 Yamaha OPL3-SA3 system integrated on the system board
 Chicony 104 keyboard
 MicrosoftIntelliMouse.
The following hardware features are build-to-order choices:
 stereo speakers, 9-watt
 24X CD-ROM reader
 56.6-Kbps fax/modem board
 Creative Labs CT4335 sound board (AWE-32)
 ATIXPERT@Work AGP 2X video board with 4 MB of RAM (upgradeable
to 8 MB)
 Cirrus Logic DM-5465 AGP video board with 2 MB of video RAM (upgradeable
to 4 MB)
 Number NineRevolution3D PCI video board with 4 MB of video EDO
(upgradeable to 8 MB or 12 MB); this board installs in any available PCI
expansion slot
 3COM3C905B network board with RJ-45, BNC, and AUI connectors
3COM 3C905-TX network board with RJ-45 connector

Technical Information 1-3

Iomega100-MB Zipdrive

SCM MicrosystemsSwapBoxPCMCIA unit
 Seagate Travan 4-GB/8-GB Tape Backup device.
Figure 1-2 identifies the components, lamps, and controls on the front of the system.
Figure 1-3 identifies the connectors on the back of the system.
Figure 1-2 PowerMate Enterprise Desktop Front View