NEC POWERMATE PRO150 User manual

First Printing — October 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 licensors, as appropriate, reserve all
patent, copyright and other proprietary rights to this document, including
all design, manufacturing,reproduction, use, and sales rights thereto,
except to the extent said rights areexpressly 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 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.

PowerMate Pro150 System iii
Contents
Text Conventions............................................................................... xii
Feature Summary .............................................................................. 1-1
Central Processing Unit (CPU)......................................................... 1-3
System Memory................................................................................. 1-3
Cache Memory................................................................................... 1-3
IDE Peripheral Interface.................................................................... 1-4
System I/O......................................................................................... 1-4
System BIOS....................................................................................... 1-5
PCI Auto-configuration.............................................................. 1-5
IDE Auto-configuration ............................................................. 1-5
ISA Plug and Play Capability .................................................... 1-6
BIOS Upgrades............................................................................ 1-6
Expansion Slots.................................................................................. 1-6
Power Supply..................................................................................... 1-6
System Security.................................................................................. 1-7
Keyboard/Mouse Controller............................................................ 1-7
Real-Time Clock and CMOS RAM................................................... 1-7
Power Supply Fan.............................................................................. 1-7
Internal Speaker................................................................................. 1-7
External Speakers .............................................................................. 1-8
Selecting a Site ................................................................................... 2-2
Checking the Input Voltage Setting ................................................. 2-3
Checking the Power Cord................................................................. 2-4
Connecting Devices When Configuring the System....................... 2-4
Before Installing Optional Items....................................................... 2-4
Front Panel Controls and Indicators................................................ 2-5
Back Panel Connectors and Features............................................... 2-6
Usin
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This Guide
1 Product Description
2 Installin
g
Your S
y
stem

iv Contents
Resetting the System......................................................................... 2-7
Turning on the System at First Start-up.......................................... 2-7
Setting Up Drives.............................................................................. 2-9
Make a Record of the Setup Configuration .................................... 3-1
Overview of the Setup Menu Screens............................................. 3-2
Overview of the Setup Keys ............................................................ 3-3
Main BIOS Setup Screen................................................................... 3-4
System Date................................................................................ 3-4
System Time............................................................................... 3-4
Floppy Options........................................................................... 3-4
Primary IDE Master................................................................... 3-4
Primary IDE Slave...................................................................... 3-4
Secondary IDE Master............................................................... 3-4
Secondary IDE Slave.................................................................. 3-4
Language .................................................................................... 3-5
Boot Options............................................................................... 3-5
Video Mode................................................................................ 3-5
Mouse.......................................................................................... 3-5
Base Memory.............................................................................. 3-5
Extended Memory..................................................................... 3-5
Floppy Options Subscreen ............................................................... 3-5
Floppy A:.................................................................................... 3-5
Floppy B:..................................................................................... 3-5
Floppy A: Type........................................................................... 3-6
Floppy B: Type........................................................................... 3-6
Primary/Secondary IDE Master/Slave
Configuration Subscreens......................................................... 3-6
IDE Device Configuration......................................................... 3-6
Number of Cylinders................................................................. 3-6
Number of Heads ...................................................................... 3-6
Number of Sectors..................................................................... 3-7
Maximum Capacity ................................................................... 3-7
IDE Translation Mode............................................................... 3-7
Multiple Sector Setting .............................................................. 3-7
Fast Programmed I/O Modes................................................... 3-7
Boot Options Subscreen ................................................................... 3-8
First Boot Device........................................................................ 3-8
Second Boot Device ................................................................... 3-8
Third Boot Device...................................................................... 3-8
3 Usin
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the Setup Pro
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ram

PowerMate Pro150 System v
Fourth Boot Device..................................................................... 3-8
System Cache .............................................................................. 3-8
Boot Speed................................................................................... 3-8
Num Lock.................................................................................... 3-9
Setup Prompt .............................................................................. 3-9
Typematic Rate Programming................................................... 3-9
Typematic Rate Delay ................................................................ 3-9
Typematic Rate ........................................................................... 3-9
Advanced Screen............................................................................... 3-10
Processor Type............................................................................ 3-10
Processor Speed.......................................................................... 3-10
Cache Size.................................................................................... 3-10
Peripheral Configuration ........................................................... 3-10
Advanced Chipset Configuration ............................................. 3-10
Plug and Play Configuration ..................................................... 3-10
Peripheral Configuration Subscreen................................................ 3-10
Configuration Mode................................................................... 3-11
PCI IDE Interface........................................................................ 3-11
Floppy Interface.......................................................................... 3-11
Serial Port 1 Address.................................................................. 3-11
Serial Port 2 Address.................................................................. 3-11
Serial Port 2 IR Mode.................................................................. 3-12
Parallel Port Address.................................................................. 3-12
Parallel Port Mode...................................................................... 3-12
Advanced Chipset Configuration Subscreen.................................. 3-12
Base Memory Size....................................................................... 3-12
ISA LFB Size................................................................................ 3-13
ISA LFB Base Address................................................................ 3-13
Video Palette Snoop.................................................................... 3-13
Latency Timer (PCI Clocks)....................................................... 3-13
ECC Support............................................................................... 3-13
Plug and Play Configuration Subscreen.......................................... 3-13
Configuration Mode................................................................... 3-13
Boot with PnP OS........................................................................ 3-14
ISA Shared Memory Size ........................................................... 3-14
ISA Shared Memory Base Address........................................... 3-15
IRQ 5, 9, 10, 11............................................................................. 3-15
Security Screen................................................................................... 3-16
Administrative and User Access Modes .................................. 3-16

vi Contents
Security Screen Options ................................................................... 3-17
User Password is........................................................................ 3-17
Administrative Password is...................................................... 3-17
Set User Password..................................................................... 3-17
Set Administrative Password ................................................... 3-17
Unattended Start........................................................................ 3-18
Security Hot Key (CTRL-ALT-)................................................ 3-18
Exit Screen......................................................................................... 3-18
Exit Saving Changes .................................................................. 3-18
Exit Discarding Changes........................................................... 3-18
Load Setup Defaults .................................................................. 3-18
Discard Changes........................................................................ 3-18
Before You Begin .............................................................................. 4-1
Removing the System Cover............................................................ 4-3
Replacing the System Cover............................................................ 4-5
Removing the Bezel.......................................................................... 4-5
Replacing the Bezel........................................................................... 4-6
Add-in Board Considerations.......................................................... 4-7
Removing Expansion Slot Covers ................................................... 4-9
Removing Breakout Slot Covers............................................... 4-10
Removing Standard Slot Covers............................................... 4-11
Installing an Expansion Slot Cover ................................................. 4-12
Installing an Add-in Board .............................................................. 4-12
Removing an Add-in Board............................................................. 4-14
Removing the 3.5-inch Drive Bay.................................................... 4-15
Installing the 3.5-inch Drive Bay ..................................................... 4-16
Removing the 3.5-inch Diskette Drive ............................................ 4-16
Installing a 3.5-inch Diskette Drive................................................. 4-17
Installing a Drive in the 3.5-inch Drive Bay.................................... 4-18
Removing a Drive from the 3.5-inch Drive Bay............................. 4-19
Installing a 5.25-inch Device ............................................................ 4-20
Removing a 5.25-inch Device........................................................... 4-23
Removing the Power Supply ........................................................... 4-24
Installing the Power Supply............................................................. 4-25
Removing the Card Guide Module................................................. 4-26
Installing the Card Guide Module............................................ 4-26
Installing an Optional Fan................................................................ 4-27
Installing an Optional Speaker......................................................... 4-28
Removing the System Board............................................................ 4-29
Installing the System Board ...................................................... 4-31
4 Takin
g
Your S
y
stem Apart

PowerMate Pro150 System vii
Before You Begin ............................................................................... 5-1
System Board Components............................................................... 5-3
Jumper Block Overview.................................................................... 5-4
CPU / Bus Speed / Clock Ratio Jumpers................................. 5-6
Factory Configuration Jumpers................................................. 5-6
How to Clear the User Password.............................................. 5-7
How to Clear CMOS RAM ........................................................ 5-8
How to Disable Access to the Setup Program.......................... 5-9
Recovery Boot Enable Jumpers.................................................. 5-9
Installing an OverDrive Processor................................................... 5-10
Installing the Upgrade................................................................ 5-10
Installing SIMMs................................................................................ 5-13
Removing SIMMs.............................................................................. 5-17
Replacing the Clock/CMOS RAM/Battery..................................... 5-18
Resetting the System ......................................................................... 6-1
Troubleshooting Procedure .............................................................. 6-2
Problems at Initial System Start-up.................................................. 6-4
Problems After the System Has Been
Running Correctly...................................................................... 6-5
Problems Running New Application Software............................... 6-6
Problems Operating Add-in Boards ................................................ 6-7
Problems and Suggestions................................................................ 6-8
Error and Information Messages...................................................... 6-11
Beep Codes......................................................................................... 6-11
Error and Information Messages...................................................... 6-12
PCI Configuration Status and Error Messages ............................... 6-15
Safety Compliance............................................................................. 7-1
Dimensions......................................................................................... 7-1
System Environment......................................................................... 7-1
Power Supply Specifications............................................................. 7-2
AC Input...................................................................................... 7-2
Power Supply Output................................................................. 7-2
5 Installin
g
and Confi
g
urin
g
S
y
stem Board Options
6 Solvin
g
Problems
7 Technical Reference

viii Contents
Board Connectors............................................................................. 7-3
Serial Port Connectors............................................................... 7-3
Parallel Port Connector ............................................................. 7-4
Keyboard and Mouse Connectors............................................ 7-5
CPU Fan Connector................................................................... 7-6
Card Slot Fan Connector........................................................... 7-7
Power Connector ....................................................................... 7-8
Diskette Drive Connector.......................................................... 7-9
IDE Connectors.......................................................................... 7-10
Speaker Connector..................................................................... 7-11
Reset Switch Connector............................................................. 7-12
Power LED Connector............................................................... 7-13
Hard Drive LED Connector...................................................... 7-14
Infrared Connector .................................................................... 7-15
Sleep Switch Connector............................................................. 7-16
Remote On/Off Switch Connector........................................... 7-17
Auxiliary Hard Drive LED Connector..................................... 7-18
ISA Connectors .......................................................................... 7-19
PCI Connectors .......................................................................... 7-21
System I/O Addresses .............................................................. 7-23
Memory Map.............................................................................. 7-25
Board Interrupts......................................................................... 7-26
DMA ........................................................................................... 7-27
Electromagnetic Compatibility........................................................ 7-28
Electromagnetic Compatibility Notice (USA) ......................... 7-28
Electromagnetic Compatibility Notices
(International) ..................................................................... 7-29
Recycling Statement.......................................................................... 7-30
BIOS Update...................................................................................... A-1
Using the Upgrade Utility......................................................... A-1
BIOS Recovery .................................................................................. A-2
Making Your Computer Work For You.......................................... B-1
Arrange Your Equipment ................................................................ B-2
Adjust Your Chair ............................................................................ B-3
Adjust Your input devices............................................................... B-4
Adjust Your Monitor........................................................................ B-6
Vary Your Workday......................................................................... B-8
A BIOS Update and Recover
y
B Settin
g
Up a Health
y
Work Environment

PowerMate Pro150 System ix
Pre-existing conditions and Psychosocial factors ........................... B-9
Checking Your Comfort:
How Do You Measure Up?....................................................... B-9
Checking Your Chair.................................................................. B-9
Checking Your Keyboard........................................................... B-9
Checking Your Mouse................................................................ B-10
Checking Your Monitor.............................................................. B-10
Checking You.............................................................................. B-10
NEC's FastFacts Service.................................................................... C-1
NEC Bulletin Board Service.............................................................. C-3
America Online Service..................................................................... C-4
CompuServe Online Service............................................................. C-5
AT & T Interchange........................................................................... C-6
E-Mail/Fax Technical Support Service............................................ C-6
Internet ............................................................................................... C-7
NEC Technical Support Services...................................................... C-8
2-1 Check the Input Voltage Setting...................................... 2-3
2-2 Front Panel Controls and Indicators............................... 2-5
2-3 Back Panel Connectors and Features.............................. 2-6
4-1 Removing the System Cover ........................................... 4-4
4-2 Removing the Bezel.......................................................... 4-6
4-3 System Slot Numbering Convention .............................. 4-8
4-4 Expansion Slot Cover Types............................................ 4-9
4-5 Removing a Breakout Expansion Slot Cover ................. 4-10
4-6 Removing a Standard Expansion Slot Cover................. 4-11
4-7 Installing an Add-in Board.............................................. 4-13
4-8 Removing the 3.5-inch Drive Bay.................................... 4-15
4-9 Removing the 3.5-inch Diskette Drive............................ 4-17
4-10 Installing an Internal Drive.............................................. 4-19
4-11 Removing EMI Shields and Filler Panels........................ 4-20
4-12 Installing the Snap-In Slide Rails..................................... 4-21
4-13 Installing a 5.25-inch Device............................................ 4-22
4-14 Removing the Power Supply........................................... 4-25
4-15 Removing the Card Guide Module................................. 4-26
4-16 Installing a Fan.................................................................. 4-27
C 24-Hour Information Services
List of Fi
g
ures

xContents
4-17 Installing the Speaker...................................................... 4-28
4-18 Removing the System Board........................................... 4-30
5-1 System Board Components............................................. 5-3
5-2 Location of Jumper Block................................................ 5-5
5-3 Removing the Spring Clamps and the CPU .................. 5-11
5-4 Installing a Processor Upgrade....................................... 5-12
5-5 Location of SIMM Sockets .............................................. 5-13
5-6 Installing a 72-Pin SIMM................................................. 5-16
5-7 Replacing the Battery ...................................................... 5-19
5-1 Supported SIMM Sizes.................................................... 5-14
5-2 Memory Options for SIMM Sockets............................... 5-14
List of Tables

PowerMate Pro150 System xi
Usin
g
This Guide
The PowerMate Pro150 User's Guide provides a quick reference to
information about your computer.
The guide contains the following information:
• Chapter 1, Product Description, provides a summary of the system unit
features and system board components.
• Chapter 2, Installing Your System, gives you a look at the front and back
features of the system and tips on setting it up.
• Chapter 3, Using the Setup Program, provides information on BIOS
settings and how to customize the configuration.
• Chapter 4, Taking Your System Apart, describes how to take apart and
reassemble the major assemblies of the computer.
• Chapter 5, Installing and Configuring System Board Options, contains
jumper information procedures on installing optional components. This
chapter also provides information on replacing the CMOS battery.
• Chapter 6, Solving Problems, contains troubleshooting tips for solving
simple problems. See Appendix C, 24-Hour Information Services if you
cannot solve a problem yourself.
• Chapter 7, Technical Reference, list the system specifications and
provides system board connector locations and pin assignments.
• Appendix A, BIOS Update and Recovery, tells you how to use the BIOS
upgrade utility and how to recover the BIOS if corrupted.

xii Using This Guide
!
WARNING
Prolonged or improper use of a computer workstation may pose a
risk of serious injury. To reduce your risk of injury, set up and use
your computer in the manner described in Appendix B, Setting Up a
Healthy Work Environment.
• Appendix B, Setting Up a Healthy Work Environment, contains
guidelines to help you use your computer productively and safely. This
appendix also instructs you on how to set up and use your computer to
reduce your risk of developing nerve, muscle, or tendon disorders.
• Appendix C, 24-Hour Information Services, lists the services available
to you for information and help and describes how to access the
services.
This appendix also provided information on how to use the NEC
FastFacts™. NEC FastFacts is an automated service that sends the latest
information about NEC and its products directly to a fax machine. The
service is available 24 hours a day, 7 days a week.
Text Conventions
Warnings, cautions, and notes have the following meanings:
!
WARNING
Warnings alert you to situations that could result in serious
personal injury or loss of life.
▲
▲
!CAUTION
Cautions indicate situations that can damage the hardware
or software.
✏Note
Notes give important information about the material being
described.

PowerMate Pro150 System 1-1
Product Description 1
!
WARNING
Prolonged or improper use of a computer workstation may
pose a risk or serious injury. To reduce your risk of injury,
set up and use your computer in the manner described in
Appendix B, Setting Up a Healthy Work Environment.
The PowerMate® Pro150 system is based on the Intel Pentium® Pro
microprocessor. This chapter describes the principal system features.
After unpacking the system, make sure the following items are present and
in good condition:
•System unit
•Power cord
• Disk drive mounting hardware kit.
If any item is damaged or missing, contact your system supplier. Save all
boxes and packing material to repack the system in the future.
Feature Summary
•Intel Pentium Pro microprocessor running at 150 MHz
• Intel 82450 PCI chipset used for PCI/ISA, memory, and peripheral
control
•PC87306B Ultra I/O controller (integrates serial ports, parallel port,
floppy disk interface, real time clock, CMOS RAM, keyboard controller,
and support for an IrDA-compatible infrared interface)
•PCI and ISA peripheral connectors on the system board
•Support for up to 128 MB of DRAM installed in single in-line memory
modules (SIMMs)

1-2 Product Description
•AMIBIOS in a flash memory device supports system setup and PCI
auto-configuration
•Expansion slots for up to six add-in boards
−Three dedicated PCI slots
−Two dedicated ISA-bus slots
−One "combination" slot for either a PCI or an ISA add-in board
•180 watt continuous (200 watt peak) power supply switch-selectable for
115 and 230 V ac operation
•Two RS-232C-compatible 9-pin serial connectors
•One multimode, 25-pin Centronics®-compatible parallel port
•Two peripheral bays:
−One bay that holds up to three 3.5-inch drives (one externally-
accessible, two internal access only)
−One externally accessible bay for installing 5.25-inch drives (up to
three half-height drives or one half-height plus one full-height drive)
•One 1.44 MB, 3.5-inch high-density diskette drive installed
•PS/2®-style keyboard and mouse connector
•Speaker mounted on the chassis
•Password protection and padlock slot for system security
Most models include a:
•1.6 GB IDE hard disk drive installed
•Six-speed CD-ROM reader installed
•Pair of external speakers
•Microphone
•Graphics controller card installed
•Audio/sound card installed
•SCSI interface card installed.
Some models include additional cards and peripherals.

PowerMate Pro150 System 1-3
Central Processing Unit (CPU)
The system is designed to operate with a 150 MHz Intel Pentium Pro
microprocessor. The Pentium Pro microprocessor, in addition to its
expanded data and addressing capabilities, includes the following features:
•Next generation Pentium Pro OverDrive® processor ready, including a
zero insertion force Socket 8
•Backward compatibility with Intel microprocessor architecture
•Onchip numeric coprocessor (compatible with the Pentium® processor
and compliant with ANSI/IEEE standard 754-1985)
•Onchip 16 KB cache (8 KB for data, 8 KB for code)
•Burst-mode bus cycles
Chapter 5 tells how to upgrade the CPU.
System Memory
The system supports base (conventional) and extended memory. Operating
systems such as MS-DOS®, Windows® 95, Windows NT, and all
application programs use base memory. For better performance many
applications use extended memory. For the system memory map, see
Chapter 7.
The system supports up to 128 MB of DRAM. DRAM is implemented
through 72-pin single in-line memory modules (SIMMs). The system board
contains four SIMM sockets. Chapter 5 describes how much memory and
which type of SIMM you can install to get the total amount of DRAM you
want.
Cache Memory
The Pentium Pro microprocessor includes 16 KB of cache on the chip. A
256 KB secondary (L2) cache device is contained in the same package as the
Pentium Pro microprocessor.

1-4 Product Description
IDE Peripheral Interface
The onboard 82450 PCI chipset provides a high speed, 32-bit PCI/IDE
interface. The PCI/IDE interface supports:
•Up to four PCI/IDE hard drives on the PCI bus
•Enhanced Mode 3 and Mode 4 support
•Logical block addressing (LBA) of hard drives larger than 528 MB
• Extended Cylinder Head Sector (ECHS) translation modes
• ATAPI devices (such as CD-ROMs) on both IDE interfaces
System I/O
The onboard I/O controller (PC87306B) integrates the functions for the
serial ports, parallel port, diskette drives, and keyboard. This component
provides:
•Multimode bi-directional parallel port
−Standard mode: Centronics-compatible operation
−High-speed mode: support for enhanced capabilities port (ECP) and
enhanced parallel port (EPP)
•Two RS-232C 116550A-compatible 9-pin serial ports
• Integrated real time clock with an accuracy of ±13 minutes/year
• A 242-byte battery-backed CMOS RAM
• Integrated 8042 compatible keyboard controller
• Flexible IRQ and DMA mapping to support Windows 95
• Support for an IrDA-compatible infrared interface. The infrared
interface supports data transfer rates of up to 115 Kbaud with either
half- or full-duplex operation. In full-duplex mode, both the transmitter
and receiver are enabled simultaneously for higher throughput.
•Industry standard diskette drive controller that supports 720 KB,
1.44 MB, and 2.88 MB 3.5-inch drives (at 135 tracks per inch); and
360 KB and 1.2 MB 5.25-inch drives

PowerMate Pro150 System 1-5
The system supports up to six drives. The system ships with one 1.44 MB
diskette drive installed in the 3.5-inch bay. The 5.25-inch bay can hold up to
three half-height 5.25-inch drives. The 3.5-inch drive bay can hold up to
three 3.5-inch drives.
If you are using third-party controllers or non-IDE hard disk drives, each of
the controller functions can be disabled in Setup (Chapter 3).
System BIOS
The system BIOS, from American Megatrends Incorporated (AMI), provides
ISA and PCI compatibility. The BIOS is contained in a flash memory device
on the system board. The BIOS provides the power-on self test (POST), the
system Setup program, a PCI and IDE auto-configuration utility, and BIOS
recovery code. Note that Power Management is not supported.
The system BIOS is always shadowed. Shadowing allows any BIOS
routines to be executed from fast 32-bit onboard DRAM instead of from the
slower 8-bit flash device.
PCI Auto-configuration
The PCI auto-configuration utility works in conjunction with the Setup
program to support using PCI add-in boards in the system. When you turn
on the system power after installing a PCI board, the BIOS automatically
configures interrupts, DMA channels, I/O space, and so on. Since PCI add-
in boards use the same interrupt resources as ISA add-in boards, you must
specify the interrupts used by ISA boards in the Setup program. Chapter 3
tells how to use the Setup program. The PCI auto-configuration program
complies with version 2.1 of the PCI BIOS specification.
IDE Auto-configuration
If you install an IDE drive in the system, the IDE auto-configuration utility
automatically detects and configures the drive for operation in the system.
This utility eliminates the need to enter the Setup program after you install
an IDE drive.

1-6 Product Description
ISA Plug and Play Capability
This provides auto-configuration of Plug and Play ISA cards and resource
management for legacy (non Plug and Play) ISA cards when used with the
ISA Configuration Utility (ICU) or a Plug and Play compatible operating
system like Windows 95.
BIOS Upgrades
Because the BIOS is stored in a flash memory device, you can easily
upgrade the BIOS without having to disassemble the system. The flash
upgrade process can be done by running a utility from a diskette or hard
disk, or over a network.
Appendix A tells how to run the BIOS upgrade utility and, if needed, the
recovery utility. For information about the latest BIOS update, contact your
service representative.
Expansion Slots
The system has two 16-bit ISA/AT-compatible and three PCI-compatible
expansion slots. One expansion slot is a "combination" slot and can be used
by either a PCI or an ISA board. Full-length add-in cards may be installed
any slot. See Chapter 4 for more information about expansion slots and
installing add-in boards.
Power Supply
The system has a 180 watt continuous (200 watt peak) power supply to
provide power for onboard resources, add-in boards, and drives. A switch
on the system back panel sets the power supply to operate at either:
•115 V ac (in the range of 100-120 V ac; 4.0 A, maximum input current)
•230 V ac (in the range of 200-240 V ac; 2.0 A, maximum input current).
For power supply output ratings, see Chapter 7.

PowerMate Pro150 System 1-7
System Security
The system BIOS provides a password option that you can enable through
the Setup program (see Chapter 3). The system also includes a padlock slot
that makes it possible to lock the system cover in place to prevent
unauthorized access to the system jumpers and other internal components
(a padlock is not included).
Keyboard/Mouse Controller
The onboard I/O controller stores the keyboard and mouse controller code.
PS/2-style connectors for the keyboard and mouse are located on the back
panel.
Real-Time Clock and CMOS RAM
The onboard I/O controller provides a real-time clock and CMOS RAM.
Chapter 5 provides information about replacing the battery.
You can set the time for the clock and the CMOS values by using the system
BIOS Setup program, described in Chapter 3.
Power Supply Fan
For cooling, a fan is attached to the power supply, at the rear of the system
chassis. This fan draws air in through the vents in the power supply and
provides air flow across the CPU. A second fan can be installed in the card
guide module at the front of the chassis to provide additional cooling. Refer
to Chapter 4 for instructions.
Internal Speaker
A speaker is mounted inside the chassis. The speaker provides audible
error code information (beep codes) during the power-on self test (POST) if
the system cannot use the video interface. See Chapter 6 for beep code
information.
A speaker can be installed in the card guide module. See Chapter 4 for
installation instructions. If you install a speaker, remove the jumper that
enables the onboard speaker (Chapter 7).