NEC POWERMATE P - SERVICE MANUAL 1995 User manual

PowerMate®P Series
PowerMate
Service and Reference Manual
Printed in U.S.A 9/95
819-181365-000 Rev. 00

First Printing — September 1995
Copyright 1995 Copyright 1995
NEC Technologies, Inc. NEC Corporation
1414 Massachusetts Avenue 7-1 Shiba 5-Chome, Minato-Ku
Boxborough, MA 01719 Tokyo 108-01, Japan
All Rights Reserved 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 Corporation (NEC) and/or its licensors. NEC and/or its licen-
sors, as appropriate, reserve all patent, copyright and other proprietary rights to this docu-
ment, including all design, manufacturing, reproduction, use, and sales rights thereto, except
to the extent said rights are expressly granted to others.
The NEC 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 NEC.
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 NEC is prohibited.
MultiSync and PowerMate are U.S. registered trademarks of NEC Technologies, Inc.
FastFacts is a U.S. trademark of NEC Technologies, Inc.
All other product, brand, or trade names used in this publication are the trademarks or registered
trademarks of their respective trademark owners.

iii
Contents
Preface........................................................................................................................ xiii
Abbreviations .............................................................................................................. xv
Section 1 Technical Information
System Chassis............................................................................................................ 1-1
System Board.............................................................................................................. 1-2
Processor.............................................................................................................. 1-5
Secondary Cache.................................................................................................. 1-5
System and Video BIOS....................................................................................... 1-6
Power Management.............................................................................................. 1-7
I/O Addressing ..................................................................................................... 1-8
System Memory.................................................................................................... 1-9
Interrupt Controller .............................................................................................. 1-11
Integrated Graphics .............................................................................................. 1-12
Motion Video Controller .............................................................................. 1-12
Feature Connector........................................................................................ 1-12
Graphics Accelerator .................................................................................... 1-13
Video Memory ............................................................................................. 1-13
Plug and Play........................................................................................................ 1-13
ISA Bus........................................................................................................ 1-13
PCI Local Bus.............................................................................................. 1-13
PCI/IDE Ports...................................................................................................... 1-14
Power Management.............................................................................................. 1-14
Parallel Interface................................................................................................... 1-14
Serial Interface ..................................................................................................... 1-15
Infrared Interface.................................................................................................. 1-16
Diskette Drive ............................................................................................................. 1-17
Hard Disk Drive .......................................................................................................... 1-17
Power Supply.............................................................................................................. 1-17
Keyboard..................................................................................................................... 1-17
Mouse......................................................................................................................... 1-17

iv Contents
Multimedia Components.............................................................................................. 1-18
Integrated Audio................................................................................................... 1-18
Music Synthesizer......................................................................................... 1-18
Surround Sound............................................................................................ 1-19
MIDI Interface ............................................................................................. 1-19
Wavetable Synthesis ..................................................................................... 1-19
Quad-Speed CD-ROM ......................................................................................... 1-19
Speakers............................................................................................................... 1-19
Microphone.......................................................................................................... 1-19
Specifications .............................................................................................................. 1-20
Section 2 Setup and Operation
Unpacking and Repacking ........................................................................................... 2-1
System Setup............................................................................................................... 2-2
CD-ROM Reader ........................................................................................................ 2-5
System Configuration .................................................................................................. 2-6
NEC Utilities and Drivers............................................................................................ 2-6
Setup Utility......................................................................................................... 2-6
When to Use Setup....................................................................................... 2-7
How to Start Setup....................................................................................... 2-7
How to Use Setup ........................................................................................ 2-8
Main Menu........................................................................................................... 2-9
System Date/Time ........................................................................................ 2-9
Diskette Drive .............................................................................................. 2-9
Hard Disk..................................................................................................... 2-9
Hard Disk Submenu...................................................................................... 2-11
Hard Disk Type............................................................................................ 2-11
Maximum Capacity....................................................................................... 2-11
IDE Translation Mode.................................................................................. 2-11
Multiple Sector Setting................................................................................. 2-13
Fast Programmed I/O Modes........................................................................ 2-13
Language...................................................................................................... 2-13
Boot Options................................................................................................ 2-14
Boot Options Submenu................................................................................. 2-14
Boot Sequence ............................................................................................. 2-14
System Cache............................................................................................... 2-14

Contents v
Boot Speed................................................................................................... 2-14
NumLock ..................................................................................................... 2-14
Setup Prompt................................................................................................ 2-14
Typematic Rate Programming....................................................................... 2-15
Video Mode ................................................................................................. 2-15
Mouse .......................................................................................................... 2-15
Base Memory ............................................................................................... 2-16
Extended Memory ........................................................................................ 2-16
Advanced Menu.................................................................................................... 2-16
Processor Type............................................................................................. 2-16
Processor Speed ........................................................................................... 2-16
Cache Size.................................................................................................... 2-16
Peripheral Configuration............................................................................... 2-17
Peripheral Submenu...................................................................................... 2-17
Audio Configuration Mode........................................................................... 2-18
Advanced Chipset Configuration................................................................... 2-18
Advanced Chipset Submenu.......................................................................... 2-18
Base Memory Size........................................................................................ 2-19
ISA LFB Size............................................................................................... 2-19
ISA LFB Base Address................................................................................. 2-19
Video Palette Snoop..................................................................................... 2-19
Latency Timer (PCI Clocks) ......................................................................... 2-20
PCI Burst ..................................................................................................... 2-20
Banks 0 and 1 SIMM Detected..................................................................... 2-20
Power Management Configuration................................................................ 2-20
Power Management Submenu....................................................................... 2-20
Plug and Play Configuration.......................................................................... 2-22
Plug and Play Submenu................................................................................. 2-22
Security Menu...................................................................................................... 2-24
Exit Menu............................................................................................................. 2-26
Exit Saving Changes..................................................................................... 2-27
Exit Discarding Changes............................................................................... 2-27
Load Setup Defaults..................................................................................... 2-27
Discard Changes........................................................................................... 2-27
Flash Utility.......................................................................................................... 2-28
NEC Bulletin Board Service ......................................................................... 2-28
Using the BIOS Update Utility...................................................................... 2-29

vi Contents
Video Drivers....................................................................................................... 2-29
Changing Video Drivers........................................................................................ 2-30
NEC Backup Utility.............................................................................................. 2-31
NEC Backup Controls.................................................................................. 2-32
Start Up........................................................................................................ 2-32
Guidelines for Backups................................................................................. 2-32
Desktop Management Interface ................................................................................... 2-33
DMI Components................................................................................................. 2-34
Manageable Products............................................................................................ 2-34
CI Module............................................................................................................ 2-34
DMI Browser....................................................................................................... 2-34
Usage................................................................................................................... 2-35
Section 3 Option Installation
General Rules for Installing Options............................................................................. 3-1
Precautions........................................................................................................... 3-1
Optional Hardware ............................................................................................... 3-2
Removing the System Unit Side Panel.......................................................................... 3-3
Removing the Side Panel ...................................................................................... 3-4
Replacing the Side Panel....................................................................................... 3-5
Adding Internal Options............................................................................................... 3-5
Expansion Boards................................................................................................. 3-6
Slot Locations .............................................................................................. 3-6
Expansion Board Installation ........................................................................ 3-7
Expansion Board Removal............................................................................ 3-8
SIMM Upgrade.................................................................................................... 3-9
Checking the Memory in the System............................................................. 3-9
SIMM Removal............................................................................................ 3-11
SIMM Installation......................................................................................... 3-11
Processor Upgrade ............................................................................................... 3-12
Processor Removal....................................................................................... 3-13
Processor Installation.................................................................................... 3-14
Audio Wave Upgrade........................................................................................... 3-15
Data Storage Devices ........................................................................................... 3-15
Device Support............................................................................................. 3-15
Device Slots ................................................................................................. 3-15
Device Preparation ....................................................................................... 3-16

Contents vii
Device Cables............................................................................................... 3-16
Diskette Drive Signal Cable .......................................................................... 3-17
IDE Signal Cables......................................................................................... 3-18
System Power Cables.................................................................................... 3-18
Device Cabling ............................................................................................. 3-19
Cabling an IDE Device ................................................................................. 3-19
Cabling a Diskette Drive............................................................................... 3-20
Storage Device Installation................................................................................... 3-21
Removing the 3 1/2-Inch Drive Bracket........................................................ 3-21
Installing the 3 1/2-Inch Drive....................................................................... 3-22
Replacing the 3 1/2-Inch Drive Bracket......................................................... 3-23
Removing the Front Panel............................................................................. 3-24
Installing the 5 1/4-Inch Device..................................................................... 3-25
Replacing the Front Panel............................................................................. 3-27
Adding External Options ............................................................................................. 3-28
Parallel Printer...................................................................................................... 3-28
Serial Devices....................................................................................................... 3-29
Speakers............................................................................................................... 3-29
Microphone.......................................................................................................... 3-33
Section 4 Maintenance and Troubleshooting
Maintenance................................................................................................................ 4-2
System Cleaning................................................................................................... 4-2
Keyboard Cleaning ............................................................................................... 4-3
Mouse Cleaning.................................................................................................... 4-4
Troubleshooting .......................................................................................................... 4-5
Error Messages..................................................................................................... 4-5
Diagnosing and Solving Problems......................................................................... 4-7
Beep Codes.......................................................................................................... 4-11
CMOS Battery Replacement................................................................................. 4-12
Section 5 Repair
Disassembly and Reassembly ....................................................................................... 5-1
Side Panel Removal.............................................................................................. 5-2
Expansion Board Removal.................................................................................... 5-4
SIMM Removal.................................................................................................... 5-5
Front Panel Assembly Removal............................................................................. 5-6

viii Contents
Blank Panel and Metal Cover Plate Removal......................................................... 5-7
3 1/2-Inch Drive Bracket Removal........................................................................ 5-8
Card Guide/Fan Bracket Removal......................................................................... 5-8
Speaker Assembly Removal.................................................................................. 5-9
3 1/2-inch Diskette Drive Removal ....................................................................... 5-9
3 1/2-inch Hard Disk Drive Removal .................................................................... 5-11
5 1/4-Inch Device Removal................................................................................... 5-12
Power Supply Removal......................................................................................... 5-14
System Board Removal......................................................................................... 5-15
Illustrated Parts Breakdown.................................................................................. 5-16
Appendix A Connector Pin Assignments
Parallel Interface Connector......................................................................................... A-2
Serial Interface Connectors.......................................................................................... A-3
Power Supply Connector............................................................................................. A-4
Diskette Drive Connector............................................................................................ A-5
IDE Connectors........................................................................................................... A-6
Turbo Connector......................................................................................................... A-7
Hard Drive LED Connector......................................................................................... A-8
Power LED Connector................................................................................................ A-9
Reset Button Connector .............................................................................................. A-10
Suspend Button Connector.......................................................................................... A-11
Infrared Connector ...................................................................................................... A-12
Fan Connector............................................................................................................. A-13
Speaker Connector...................................................................................................... A-14
Audio Riser I/O Connector.......................................................................................... A-15
Wavetable Connector .................................................................................................. A-16
CD-ROM Audio Connector......................................................................................... A-17
ISA Connectors........................................................................................................... A-17
PCI Connectors........................................................................................................... A-19
Appendix B System Board Switches
Changing Switch Settings............................................................................................ B-2
Clearing Your Password.............................................................................................. B-3
Clearing CMOS........................................................................................................... B-4

Contents ix
List of Figures
1-1 System Controls and Storage Device Slots..................................................... 1-2
2-1 Voltage Selector Switch ................................................................................ 2-2
2-2 Peripheral Connections .................................................................................. 2-2
2-3 Audio Connectors.......................................................................................... 2-3
2-4 System Buttons, Lamps, and IR Window....................................................... 2-4
2-5 Typical CD-ROM Reader Controls and Indicators ......................................... 2-5
3-1 Side Panel Removal....................................................................................... 3-4
3-2 System Board Upgrade Sockets and Connectors............................................ 3-6
3-3 Expansion Slots Locations............................................................................. 3-7
3-4 Removing a Slot Cover.................................................................................. 3-7
3-5 Inserting the Expansion Board....................................................................... 3-8
3-6 Removing a SIMM........................................................................................ 3-11
3-7 Inserting the SIMM ....................................................................................... 3-12
3-8 Releasing the Processor ................................................................................. 3-13
3-9 Aligning the Processor with the Socket.......................................................... 3-14
3-10 Device Slot Locations.................................................................................... 3-16
3-11 System Board Cable Connectors.................................................................... 3-17
3-12 Diskette Drive Signal Cable ........................................................................... 3-17
3-13 IDE Cable Connectors................................................................................... 3-18
3-14 Power Cable Connectors................................................................................ 3-19
3-15 Connecting IDE Device Cables...................................................................... 3-20
3-16 Connecting 1.2-MB Diskette Drive Cables..................................................... 3-20
3-17 Removing the 3 1/2-Inch Drive Bracket......................................................... 3-21
3-18 Securing a 3 1/2-Inch Drive........................................................................... 3-22
3-19 Securing the 3 1/2-Inch Drive Bracket........................................................... 3-23
3-20 Removing the Front Panel.............................................................................. 3-24
3-21 Removing the Blank Panels............................................................................ 3-25
3-22 Attaching the Device Rails............................................................................. 3-26
3-23 Inserting the Device....................................................................................... 3-26
3-24 Aligning the Front Panel ................................................................................ 3-27
3-25 Connecting a Printer Cable............................................................................. 3-28
3-26 Connecting an RS-232C cable........................................................................ 3-29
3-27 Speaker Cables.............................................................................................. 3-30
3-28 Connecting the Two Speakers........................................................................ 3-30

xContents
3-29 Attaching the Y-Cable ................................................................................... 3-31
3-30 Connecting Speaker Components................................................................... 3-32
3-31 Inserting the Microphone Holder into the Stand............................................. 3-33
3-32 Inserting the Microphone into the Holder....................................................... 3-33
3-33 Adjusting the Microphone.............................................................................. 3-34
4-1 Removing the Keyboard Enclosure ................................................................ 4-3
4-2 Removing the Mouse Ball Cover.................................................................... 4-4
4-3 Battery Socket Location................................................................................ 4-12
4-4 Battery Removal............................................................................................ 4-13
5-1 Side Panel Removal....................................................................................... 5-3
5-2 Expansion Board Removal............................................................................. 5-4
5-3 SIMM Socket................................................................................................ 5-5
5-4 Removing the Front Panel.............................................................................. 5-6
5-5 Removing the Blank Panels............................................................................ 5-7
5-6 Removing the 3 1/2-Inch Drive Bracket......................................................... 5-8
5-7 Speaker Tabs................................................................................................. 5-9
5-8 3 1/2-Inch Diskette Drive Cables ................................................................... 5-10
5-9 Diskette Drive Bracket Screws ...................................................................... 5-10
5-10 3 1/2-Inch Hard Disk Drive Cables ................................................................ 5-11
5-11 Removing the 3 1/2-Inch Drive...................................................................... 5-12
5-12 Inserting the Device....................................................................................... 5-13
5-13 Removing the Device Rails ............................................................................ 5-13
5-14 Power Supply Screws.................................................................................... 5-14
5-15 System Board Removal.................................................................................. 5-15
5-16 PowerMate P Series Illustrated Parts Breakdown........................................... 5-18
A-1 Parallel Interface Connector........................................................................... A-2
A-2 Serial Interface Connectors............................................................................ A-3
A-3 Power Connector........................................................................................... A-4
A-4 Diskette Drive Interface Connector................................................................ A-5
A-5 IDE Interface Connector................................................................................ A-6
A-6 Turbo Connector........................................................................................... A-7
A-7 Hard Disk LED Connector ............................................................................ A-8
A-8 Power LED Connector .................................................................................. A-9
A-9 Reset Button Connector................................................................................. A-10

Contents xi
A-10 Suspend Button Connector............................................................................ A-11
A-11 Infrared Connector ........................................................................................ A-12
A-12 Fan Connector............................................................................................... A-13
A-13 Speaker Connector ........................................................................................ A-14
A-14 Audio Riser I/O Connector............................................................................ A-15
A-15 Wavetable Connector..................................................................................... A-16
A-16 CD-ROM Audio Interface Connector ............................................................ A-17
A-17 ISA Expansion Board Connectors.................................................................. A-17
A-18 PCI Expansion Board Connectors.................................................................. A-19
B-1 System Board Switch Location...................................................................... B-1
List of Tables
1-1 System Board Chips....................................................................................... 1-4
1-2 System Memory Map..................................................................................... 1-7
1-3 I/O Address Map........................................................................................... 1-8
1-4 SIMM Memory Upgrade Path ....................................................................... 1-10
1-5 Interrupt Level Assignments .......................................................................... 1-11
1-6 Parallel Port Addressing and Interrupts.......................................................... 1-15
1-7 Serial Port Addressing and Interrupts............................................................. 1-16
1-8 Specifications................................................................................................. 1-20
2-1 Navigation Keys ............................................................................................ 2-8
2-2 Hard Disk Assignments.................................................................................. 2-10
2-3 Partitioned Hard Disk Assignments................................................................ 2-10
2-4 Hot Key Parameters....................................................................................... 2-22
2-5 Security Passwords........................................................................................ 2-24
3-1 Recommended Memory Upgrade Path........................................................... 3-10
4-1 NEC Service and Information Telephone Numbers ........................................ 4-1
4-2 System Error Messages.................................................................................. 4-5
4-3 ISA NMI Error Messages.............................................................................. 4-6
4-4 Problems and Solutions.................................................................................. 4-7
4-5 Diagnostic Beep Codes.................................................................................. 4-11
5-1 PowerMate P Series System Unit Disassembly Sequence ............................... 5-1

xii Contents
5-2 PowerMate P Series Field-Replaceable Parts List........................................... 5-16
5-3 PowerMate P Series Memory Options ........................................................... 5-19
5-4 PowerMate P Series Documentation and Packaging....................................... 5-19
A-1 System Board Connectors.............................................................................. A-1
A-2 Parallel Interface Pin Assignments.................................................................. A-2
A-3 Serial Interface Pin Assignments .................................................................... A-3
A-4 Power Connector Pin Assignments................................................................. A-4
A-5 Diskette Drive Pin Assignments..................................................................... A-5
A-6 IDE Interface Pin Assignments....................................................................... A-6
A-7 Turbo Connector Pin Assignments................................................................. A-7
A-8 Hard Disk LED Pin Assignments ................................................................... A-8
A-9 Power LED Pin Assignments......................................................................... A-9
A-10 Reset Pin Assignments................................................................................... A-10
A-11 Suspend Pin Assignments............................................................................... A-11
A-12 Infrared Pin Assignments ............................................................................... A-12
A-13 Fan Pin Assignments...................................................................................... A-13
A-14 Speaker Pin Assignments............................................................................... A-14
A-15 Audio Riser I/O Pin Assignments................................................................... A-15
A-16 Wavetable Pin Assignments ........................................................................... A-16
A-17 CD-ROM Audio Interface Pin Assignments................................................... A-17
A-18 ISA Bus Pin Assignments .............................................................................. A-18
A-19 PCI Bus Pin Assignments............................................................................... A-19
B-1 System Board Switch Settings ....................................................................... B-2

xiii
Preface
This service and reference manual for the NEC PowerMate®P series computer systems
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 NEC-trained customer
engineers, system analysts, service center personnel, and dealers.
The manual is organized as follows:
Section 1 — Technical Information, provides an overview of the system features,
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.
Also included are procedures for configuring the system through the Setup utility program,
setting passwords and power management features, and using the BIOS Update utility.
Section 3 — Option Installation, provides installation procedures for adding optional
expansion boards, diskette and hard disk storage devices, system and video memory, and
processor upgrades.
Section 4 — Maintenance and Troubleshooting, provides information on cleaning the
system and helps isolate system malfunctions.
Section 5 — Repair, includes disassembly procedures along with an exploded view
diagram of the system. Also included are parts lists for field-replaceable parts.
Appendix A — Connector Pin Assignments, provides a list of the system boards' internal
connector pin assignments.
Appendix B — System Board Switches, includes information on setting switches for
processor upgrades and clearing a passwords.

xv
Abbreviations
Aampere
AC alternating current
AT advanced technology (IBM PC)
BBS Bulletin Board System
BCD binary-coded decimal
BCU BIOS Customized Utility
BIOS basic input/output system
bit binary digit
BUU BIOS Upgrade Utility
bpi bits per inch
bps bits per second
Ccapacitance
Ccentigrade
Cache high-speed buffer storage
CAM constantly addressable memory
CAS column address strobe
CD-ROM compact disk-ROM
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
db decibels
DC direct current
DIP dual in-line package
DMA direct memory access
DMAC DMA controller
DOS disk operating system
DRAM dynamic RAM
ECC error checking and correction
ECP enhanced capabilities port (ECP)
EGA Enhanced Graphics Adapter
EPP Enhanced Parallel Port
EPROM erasable and programmable ROM
EVGA Enhanced Video Graphics Array
FFahrenheit
FAX facsimile transmission
FCC Federal Communications Commission
FG frame ground
FIFO first-in/first-out
FM frequency modulation
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
in. inch
IPB illustrated parts breakdown
ISA Industry Standard Architecture
I/O input/output
IPC integrated peripheral controller
ips inches per second
IR infrared
IRQ interrupt request
Kkilo (1024)
kkilo (1000)
KB kilobyte
kg kilogram
kHz kilohertz
lb pound
LED light-emitting diode
Mmega

xvi Abbreviations
mA milliamps
max maximum
MB megabyte
MDA Monochrome Display Adapter
MFM modified frequency modulation
MHz megahertz
MIC microphone
MIDI musical instrument device interface
MPC multimedia PC
mm millimeter
MPEG Motion Picture Experts Group
ms millisecond
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
PCI Peripheral Component Interconnect
PDA personal digital assistant
PFP plastic flat package
PIO parallel input/output
pixel picture element
PROM programmable ROM
RAM random-access memory
RAMDAC RAM digital-to-analog converter
RGB red green blue
RGBI red green blue intensity
ROM read-only memory
rpm revolutions per minute
Rread
RTC real-time clock
R/W read/write
Sslave
SCSI Small Computer System Interface
SG signal ground
SIMM single inline memory module
SVGA Super Video Graphics Array
SW switch
TAC Technical Assistance Center
TSC Technical Support Center
TTL transistor/transistor logic
tpi tracks per inch
Vvolt
Vac volts, alernating current
Vdc volts, direct current
VESA video electronics standards
association
VGA Video Graphics Array
VRAM video RAM
Wwatt
Wwrite

Section 1
Technical Information
The PowerMate®P Series systems include the following configurations:
nhard disk systems (diskette drive, hard disk)
nmultimedia systems (diskette drive, hard disk, quad-speed CD-ROM reader,
speakers, microphone)
All systems come standard with an Intel Pentium™ processor (120 MHz, or 133 MHz), a
31/2-inch diskette drive, 256 kilobyte (KB) asynchronous secondary cache, 16-megabyte
(MB) random access memory (RAM), and 2 MB of video dynamic random access memory
(DRAM). Each system incorporates power management features, and has factory installed
software including Microsoft®Windows for Workgroups™ and Windows 95™.
The following paragraphs give an overview of the systems. Differences between systems are
noted as they occur.
SYSTEM CHASSIS
The chassis provides an enclosure for the system board, power supply, six PCI/ISA
expansion slots and six storage device slots. The expansion slots include two 8-/16-bit ISA
slots, one shared PCI/ISA slot, and three 32-bit PCI slot.
The six storage device slots accommodate up to four accessible devices and two internal
hard disk drive devices. The accessible devices include the standard one-inch high 3 1/2-
inch 1.44-MB diskette drive and up to three 1.6-inch high 5 1/4-inch storage devices. The
internal device slots support up to two 1-inch high 3 1/2-inch hard disks.
The non-multimedia hard disk systems ship with an accessible 3 1/2-inch diskette drive and
an internal 3 1/2-inch hard disk drive, leaving three accessible 5 1/4-inch storage device
slots and one internal slot available for optional devices. The multimedia systems ship with
an accessible 3 1/2-inch diskette drive, an internal 3 1/2-inch hard disk drive, and an
accessible 5 1/4-inch CD-ROM reader, leaving two accessible 5 1/4-inch storage device
slots and one internal slot available for optional devices.
Figure 1-1 shows the front panel features and the locations of the accessible storage devices
in a system. (Multimedia systems come with a quad-speed CD-ROM reader installed.)

1-2 Technical Information
Figure 1-1System Controls and Storage Device Slots
SYSTEM BOARD
Key features of the system board include the following:
nIntel Pentium 120- or 133-MHz Pentium processor, depending on system
configuration
n16-KB internal dual write-back cache integrated on the processor (8 KB data,
8 KB instructions)
n256-KB asynchronous write-back secondary cache memory
15-nano second (ns), pipeline burst, static random access memory (SRAM)
cache
nsystem Setup program built into the BIOS
nflash ROM for fast economical BIOS upgrades
nintegrated input/output (I/O) controller with keyboard, diskette drive, and hard
disk drive controllers. Supports two serial ports, a parallel port, and an IR port.
nPCI local bus for fast data transfer
nsupport for Intel processor upgrades
n16-MB RAM
ships with 32-bit, non-parity, 70-ns, Fast Page Mode, single-inline memory
modules (SIMMs)
RAM expandable up to 128 MB using four SIMM sockets (2 banks with two
sockets each)
CD-ROM Reader
Diskette Drive A
IR Window Suspend
Button
Reset Button
Power Button
Disk Lamp
Power Lamp

Technical Information 1-3
nintegrated graphics
Peripheral Component Interconnect (PCI) graphical user interface (GUI)
accelerator and motion video playback controller; supports MPEG-1 and
Video for Windows®
standard 2-MB video DRAM using four 256 KB x 16-bit DRAM chips
video DRAM supports resolutions of 800 x 600 with up to 16.8 million
colors, 1024 x 768 with up to 64K colors, 1280 x 1024 with up to 64K
colors, and 1600 x 1200 with 256 colors
support for 16-bit bidirectional VESA advanced feature connector
support for VESA Display Power Management Signalling (DPMS) monitor
power saving modes
video BIOS integrated in system BIOS
nintegrated sound (multimedia configurations only)
Sound Blaster compatible chip on system board
OPL3 FM synthesis chip on system board
built-in 16-bit stereo and FM synthesis
Wavetable sound upgradeable (Wave Blaster MIDI synthesizer)
3D sound effects (Surround Sound)
ntwo intelligent drive electronics (IDE) interface channels
one fast IDE/PCI channel (primary connector) used by the hard disk drive to
transfer data at the hard disk's optimum rate
one standard IDE channel (secondary connector) for the CD-ROM reader
supports up to four IDE devices, two to each channel
npower management for placing system in power save mode when idle for a
specified amount of time
n3 1/2-inch, 1.44-MB diskette drive standard all configurations
nPCI/ISA backboard configurations using six expansion slots
three 32-bit PCI slots
two 8/16-bit ISA slots
one shared ISA or PCI slot

1-4 Technical Information
nexternal connectors for connecting the following external devices:
VGA-compatible monitor (standard, super, high-resolution VGA)
personal system/2 (PS/2®)-style mouse
PS/2-style keyboard
bidirectional Enhanced Parallel Port (EPP) and enhanced capabilities port
(ECP) are supported for a parallel printer
serial devices through two buffered 16C550 UART serial ports, each
supporting transfer rates of up to 19.2 KB per second
multimedia speakers, microphone, and headphone connectors (multimedia
configurations only)
nMIDI/joystick connector on the system board for installation of an optional
MIDI/joystick kit
nAudio Wave upgrade connector on the system board for installation of an optional
Wave upgrade.
Table 1-1 lists the major chips on the system board. See Appendix A, “Connector Pin
Assignments”, for a list of the system board connectors. See Appendix B, “System Board
Switches”, for a description of board switches.
Table 1-1System Board Chips
Chip Description
Pentium Chip 120/60-MHz Intel Pentium processor
133/66-MHz Intel Pentium processor
Intel Triton 82430FX PCI/ISA Chip
Set
82437FX
82438FX
824371FB
System controller
Data path unit
PCI ISA/IDE accelerator bridge chip
National Semiconductor PC87306 Super I/O controller
NS16C550 UARTS
supports multimode parallel port
supports industry-standard floppy controller
integrated, battery-backed real-time clock
and CMOS RAM
integrated 8042 keyboard controller
and AMI megakey keyboard/mouse
controller code
S3 Trio 64V+ PCI GUI graphics controller

Technical Information 1-5
Table 1-1System Board Chips
Chip Description
Intel 28F100BXT 1 Mb component 128k x 8 Flash ROM (128 KB)
Socketed 3V lithium coin cell battery
Can be replaced by Sanyo CR2032
coin cell battery or equivalent
Real-time clock battery for integrated RTC on
PC87306
Vibra 16S (CT2504) (multimedia
systems only) Multimedia codec (digital audio and analog mixing chip)
Yamaha OPL3-L Synthesizer Chip
(multimedia systems only) Frequency modulated synthesizer
Processor
The PowerMate P series of computers use the following Pentium processors:
nPowerMate P120 — 120-MHz processor with internal speed of 120 MHz and
external speed of 60 MHz
nPowerMate P130 — 133-MHz processor with internal speed of 133 MHz and
external speed of 66 MHz.
Each processor has 16 KB of write-back primary cache and a math coprocessor. The 16 KB
primary cache provides 8 KB for instructions and 8 KB for data.
The processor is an advanced pipelined 32-bit addressing, 64-bit data processor designed to
optimize multitasking operating systems. The 64-bit registers and data paths support 64-bit
addresses and data types.
To use the Pentium processor’s power, the system features an optimized 64-bit memory
interface and complementary asynchronous pipelined 256-KB secondary cache.
The processor is compatible with 8-, 16-, and 32-bit software written for the Intel386™,
Intel486™, and Pentium processors.
To accommodate future technologies and work requirements, the Pentium processor comes
in a 320-pin zero insertion force (ZIF) socket. The socket provides an upgrade path to the
next generation processor.
Secondary Cache
The system board contains 256 KB of secondary cache, external to the processor. The
cache uses 15-ns SRAM that allows data to be sent or received from cache with one wait
state burst. Cache memory improves read performance by holding copies of code and data
that are frequently requested from the system memory by the processor. Cache memory is
not considered part of the expansion memory.