Information in this document is subject to change without notice.
1991–1996 Dell Computer Corpo ra tion. All rights reserved.
Reproduction in a ny m an n e r w hat soever without the written perm i ssion of Dell Computer Corporation is strictly forbidde n.
Trademarks used in this te xt: Dell, OptiPlex, and the DELL logo are registered trademarks and DellWare is a registered service mark of Dell
Computer Corporation; Intel and Pentium are regi ste r ed trademarks of Intel Corporation; Microsoft, MS-DOS, Windows, and Windows N T are
registered trad emarks and Windows for Workgroups is a trademark of Microsoft Corporation; IBM and OS/2 are regist ere d trademarks of International Business Machines Corporation; Novell and NetWare are registered trademar ks of No vell, In c.; 3Com is a registered trademark of 3Com
Corporation; VESA is a registered trademark of Video Electronics Standards Association; and UNIX is a registered trademark of UNIX System
Laboratories, Inc. , a whol ly owned subsidiary of Novell, In c. As an Energy Star Partner, Del l Computer Corporation ha s det er mi ned that this
product meets the Energy Star guideline s for energy efficiency.
Other trademarks and t rade names may be used in this document to refer to either the ent itie s claiming the marks and nam es or th ei r products.
Dell Computer Corporation disclaims any pro prietary interest in trademarks and trade names other th an i ts own.
September 1996 P/N 50557
Safety Instructions
When Using Your Computer System
As you use your computer system, observe the fo llow ing
safety guidelines:
•
To help avoid damaging your computer, be sure the
voltage selection switch on the power supply is set to
match the alternating current (AC) power available
at your location:
— 115 volts (V)/60 hertz (Hz) in most of North and
South America and some Far Eastern countries
such as Japan, South Korea, and Taiwan
— 230 V/50 Hz in most of Europe, the Middle
East, and the Far East
Also be sure your monitor and attached peripherals
are electrically rated to operate with the AC power
available in your location.
•
To help prevent electric shock, plug the computer
and peripheral power cables into properly grounded
power source s. These cables are equipped with
3-prong plugs to ensure proper grounding. Do not
use adapter plugs or remove the grounding prong
from a cable. If you must use an extension cable , use
a 3-wire cable with properly grounded plugs.
•
To help protect your computer system from sudden,
transient increases and decreases in electrical power,
use a surge suppressor, line conditioner, or uninterruptible power supply.
•
Be sure nothing rests on your computer system’s
cables and that the cables are not located where they
can be stepped on or tripped over.
•
Do not spill food or liquids on your computer. If the
computer gets wet, consult your Diagnostics and
Troubleshooting Guide.
•
Do not push any objects into the openings of your
computer. Doing so can cause fire or electric shock
by shorting out interior components.
•
Keep your computer away from radiators and heat
sources. Also, do not block cooling vents. Avoid
placing loose papers underneath yo ur computer; do
not place your computer in a closed-in wall unit or
on a bed, sofa , or rug.
Ergonomic Computing Habits
WARNING: Improper or prolonged keyboard use
may result in injury.
For maximum comfort and efficiency, observe the following ergonomic guidelines when setting up and using
your computer system:
•
Position your system so that the monitor and keyboard are directly in front of you as you work.
Special shelves are available (from Dell and other
sources) to help you correctly po sition your
keyboard.
•
Set the monitor at a comfortable viewing distance
(usually 510 to 610 millimeters [20 to 24 inches]
from your e yes).
•
Make sure the monitor screen is at eye level or
slightly lower when you are sitting in front of the
monitor.
•
Adjust the tilt of the monitor, its contrast and brigh tness settings, and the lighting around you (such as
overhead lights, desk lamps, and the curtains or
blinds on nearby windows) to minimize reflections
and glare on the monitor screen.
•
Use a chair that provides good lower back support.
v
•
Keep your forearms horizontal with your wrists in a
neutral, comfortable position while using the keyboard or mouse.
•
Always leave space to rest your hands while using
the keyboard or mouse.
•
Let your upper arms hang naturally at your sides.
•
Sit erect, with your feet resting o n the f lo or and y our
thighs level.
wrists relaxed and flat
arms at desk level
•
When sitting, make sure the weight of your legs is on
your feet and not on the front of your chair seat.
Adjust your chair’s height or use a footrest, if necessary, to maintain proper posture.
•
Vary your work activities. Try to organize your work
so that you do not have to type for extended periods
of time without stopping. When you stop typing, try
to do things that use both hands.
monitor screen at or below eye level
monitor and keyboard
positioned directly
in front of user
feet flat on the floor
vi
When Working Inside Your Computer
Before you remove the computer cover, perform the following steps in the sequence indicated:
1.Turn off your computer and any peripherals.
2.Disconnect your computer and peripherals from
their power sources. Also, disconnect any
telephone or telecommunication lines from the
computer.
Doing so reduces the potential for personal injury or
shock.
3.Touch an unpainted metal surface on the chassis,
such as the power supply at the back of the
computer, before touching anything inside your
computer.
While you work, periodically touch an unpainted
metal surface on the computer chassis to dissipate
any static electricity that might harm internal
components.
In addition, take note of these safety guidelines when
appropriate:
Do not attempt to service the computer system your-
•
self, except as explained in this guide and elsewhere
in Dell documentation. Always follow installation
and servicing instructions closely.
When removing a component from the system board
•
or disconnecting a peripheral device from the computer, wait 5 seconds after turning off the system
before removing the component or disc onnecting the
device to avoid possible damage to the system board.
When you disconnect a cable, pull on its connector
•
or on its strain-relief loop, not on the cable itself.
Some cables have a connector with locking tabs; if
you are disconnecting this type of cable, press in on
the locking tabs before disconnecting the cable. As
you pull connectors apart, keep them evenly aligned
to avoid bending any connector pins. Also, before
you connect a cable, make sure both connectors are
correctly oriented and aligned.
Handle components and cards with care. Don’t tou ch
•
the components or contacts on a card. Hold a card by
its edges or by its metal mounting bracket. Hold a
component such as a microprocessor chip by its
edges, not by its pins.
Protecting Against Electrostatic
Discharge
Static electricity can harm delicate components inside
your computer. To prevent static damage, discharge static
electricity from your body before you touch any of your
computer’s electronic components, such as the microprocessor. You can do so by t ouchi ng an u npain ted metal
surface on the computer chassis.
As you continue to work inside the computer, periodically touch an unpainted metal surface to remove any
static charge your body may have accumulated.
In addition to the preceding precautions, you can also
take the following steps to prevent damage from electrostatic discharge (ESD):
When unpacking a static-sensitive component from
•
its shipping carton, do not remove the component’s
antistatic packing material until you are ready to
install the component in your computer. Just before
unwrapping the antistatic packaging, be sure to discharge static electricity from your body.
When transporting a sensitive component, first place
•
it in an antistatic container or packaging.
Handle all sensitive components in a static-safe area.
•
If possible, use antistatic floor pads and workbench
pads.
The following caution appears throughout this docu ment
to remind you of these precautions:
CAUTION: See “Protecting Against Electrostatic
Discharge” in the safety instructions at the front of
this guide.
vii
viii
Preface
A
bout This Guide
This guide is intended for anyone who uses a Dell OptiPlex GXi low-profile computer system. It can be used by
both first-time and experienced computer users who want
to learn about the features and operation of the systems or
who want to upgrade their computers. The chapters and
appendixes are summarized as follows:
•
Everyone should read Chapter 1, “Introduction,” for
an overview of the system features, instructions on
how to access the online System User’s Guide, and
information on where to get help if you need it.
•
Everyone should read the first several sections of
Chapter 2, “Using the System Setup Program,” to
familiarize themselves with this important program.
Only users who want to mak e co nfigu rat ion changes
to their system or who want to use the password features need to read the rest of Chapter 2.
•
Users who add or remove an Industry-Standard
Architecture (ISA) expansion card should read
Chapter 3, “Using the ISA Configuration Utility.”
•
Users who want to change the defaul t configuration
of the system’s integrated video and audio controllers or who want to connect their system to a
network should read Chapter 4, “Using Integrated
Devices.” This chapter describes the configuration
software provided for the integrated video and audio
controllers and provides information on connecting
the system to a network, configuring the network
interface controller (NIC), and installing drivers for
the NIC.
•
Chapter 5, “Working Inside Your Computer,” Chapter 6, “Installing System Board Options,” and
Chapter 7, “Installing Drives,” are intended for users
who want to install or remove options inside the
computer, such as dual in-line memory modules
(DIMMs), expansion cards, or drives.
•
Appendix A, “Technical Specifications,” is intended
primarily as reference material for users interested in
learning more about the details of the system.
•
Appendix B, “ISA Configuration Utility Messages,”
describes error messages generated by the ISA Configuration Utility (ICU), possible causes, and
corrective actions.
•
Appendix C, “Regulatory Notices,” is for users who
are interested in which regulatory agencies have
tested and approved the Dell OptiPlex GXi lowprofile systems.
•
Appendix D, “Warranties an d Return Policy,”
describes the warranty for your Dell system and the
“Total Satisfaction” return policy.
W
arranty and Return Policy
Information
Dell Computer Corporation (“Dell”) manufactures its
hardware products from parts and components that are
new or equivalent to new in accordance with industrystandard practices. For information about the Dell
warranty for your system, see Appendix D, “Warranties
and Return Policy.”
ix
O
ther Documents You May Need
Besides this Reference and Installation Guide, the following documentation is included with your system:
•
The Getting Started sheet provides step-by-step
instructions for setting up your computer sys tem.
•
The Windows-based online System User’s Guide
contains important i nformati on abou t you r comput er
system. This document includes descriptions of
system features, instructions on installing and configuring drivers and utilities, information on the
System Setup program and ISA Configuration Utility, and instructions for attaching devices to the
connectors on your computer’s back panel.
•
The Frequently Asked Questions cards provide
detailed answers to questions that are often asked by
Dell computer users. Be sure to read these cards
before calling Dell for technical assistance.
•
The Diagnostics and Troubleshooting Guide
includes troubleshooting procedures and instructions
for using the diskette-based diagnostics to test yo ur
computer system.
You may also have one or more of the following
documents.
NOTE: Documentation updates are sometimes included
with your system to describe changes to your system or
software. Always read these updates
any other documentation because the updates often contain the latest information.
•
Operating system documentation is included if you
ordered your operating system software from Dell.
This documentation describes how to install (if necessary), configure, and use your operating system
software.
•
Documentation is included with any options you
purchase separately from your system. This documentation includes information that you need to
configure and install these options in your Dell computer. Installatio n instructions for the options are
included in this Reference and Installation Guide.
before
consulting
•
Technical information files—sometimes called
“readme” files—may be installed on your hard-disk
drive to provide last-minute updates about technical
changes to your system or advanced technical
reference material intended for experienced users or
technicians.
N
otational Conventions
The following subsections list notational conventions
used in this document.
Warnings, Cautions, and Notes
Throughout this guide, there may be blocks of text
printed in bold type within boxes or in italic type. These
blocks are warnings, cautions, and notes, and they are
used as follows:
WARNING: A WARNING indicates the potential
for bodily harm and tells you how to avoid the
problem.
CAUTION: A CAUTION indicates either potential damage to hard ware or loss of data and tells
you how to avoid the problem.
NOTE: A NOTE indicates impo rtant information that
helps you make better use of your computer system.
Typographical Conventions
The following list defines (where appropriate) and illustrates typographical conventions used as visual cues for
specific elements of text throughout this document:
•
Keycaps, the labeling that appears on the keys on a
keyboard, are presented in upper case and enclosed in
angle brackets.
Example: <
ENTER
>
x
•
Key combinations are series of keys to be pressed
simultaneously (unless otherwise indicated) to perform a single function.
Example: <
•
All items on a menu screen are presented in the HEL-
VETICA
Example:
•
Commands presented in lowercase bold are fo r ref erence purposes only and are not intended to be typed
at that particular point in the discussion.
Example: “Use the format command to. . . .”
In contrast, commands presented in the Courier font
are intended to be typed as part of an instruction.
Example: “Type
in drive A.”
•
Filenames and directory names are presented in
lowercase bold.
Examples: autoexec.bat and c:\windows
•
Syntax lines consist of a command and all its
possible parameters. Commands are displayed in
lowercase bold; variable parameters (those for which
you substitute a value) are displayed in lowercase
italics; constant parameters are displayed in lowercase bold. The brackets indicate items that are
optional.
Example: del [drive:] [path]filename [/p]
CTRL><ALT><ENTER
font and in uppercase bold.
SETUP PASSWORD category
format a:
>
to format the diskette
•
Command lines consist of a command and may
include one or more of the command’s possible
parameters. Command lines are presented in the
Courier
Example:
•
Screen text is text that appears on the screen of your
monitor or display. It can be a system message, for
example, or it can be text that you are instructed to
type as part of a command (referred to as a comman d line). Screen text is presented in the
Example: “Type
<
ENTER
Example: The following message appears on your
screen:
No boot device available
•
Variables are p laceholders fo r which you substitute a
value. They are presented in italics.
Example: DIMM_x (where x represents the DIMM
socket designation)
speed, expandable personal computers designed around
®
Intel
Pentium® microprocessors. Each system uses a
high-performance Peripheral Component Interconnect
(PCI) design that allows you to configure the computer
system to your initial requirements and then add Dellsupported upgrades as necessary. These systems also
support the In dus t ry-Standard Architect ure ( I S A) bus for
older expansion devices.
This chapter describes the major hardware and software
features of your system, provides information about
accessing the online documentation, and tells you where
to find help if you need it.
ystem Features
S
Your system offers the following features:
•
An Intel Pentium microprocessor. The following
microprocessor options are available:
— An Intel Pentium microprocessor with an inter-
nal speed of 133 megahertz (MHz) and an
external speed of 66 MHz
— An Intel Pentium microprocessor with an inter-
nal speed of 166 MHz and an external speed of
66 MHz
— An Intel Pentium microprocessor with an inter-
nal speed of 200 MHz and an external speed of
66 MHz
The Pentium microprocessor has an 8-kilobyte (KB)
internal data cache and an 8-KB internal instruction
cache, an internal math coprocessor, and other
advanced internal logic.
•
A keyboard command (
you switch between the microprocessor’s rated
speed and a slower compatibility speed.
NOTE: This keyboard command is not available
under the Microsoft
OS/2®operating systems.
•
A cache with 256 or 512 KB of pipeline-burst static
random-access memory (SRAM). Cache memory
enhances the speed of many microprocessor operations by storing the most recently accessed contents
of system memory.
•
System memory that can be increased up to
512 megabytes (MB) by installing 8-, 16-, 32-, 64-,
or 128-MB extended-data out (EDO) dual in-line
memory modules (DIMMs) in the four DIMM sockets on the system board. The system also supports
both error correction code (ECC) and non-ECC
DIMMs. See “Adding Memory” in Chapter 6 for
details.
•
Self-Monitoring Analysis Reporting Techno logy
(SMART) support, which warns you at system startup if your hard-disk drive has beco me unrel iable. To
take advantage of this technology, you must have a
SMART-compliant hard-disk drive in your computer. All hard-disk drives shipped with OptiPlex
GXi systems are SMART-compliant.
•
A basic input/out put system (BIOS), which resides
in flash memory and can be upgraded by diskette if
required.
•
Full compliance with PCI specification 2.1.
•
Full Plug and Play version 1.0a capability, which
greatly simplifies the installation of expansion cards.
Plug and Play support included in the system BIOS
allows you to install Plug and Play expansion cards
without setting jumpers or switches or performing
<CTRL><ALT><\>
®
Windows NT® and IBM
) that lets
®
Introduction1-1
other configuration tasks. The ISA Configuration
Utility (ICU) allows you to configure existing nonPlug and Play ISA expansion cards for conflict-free
operation. Also, because the system BIOS is stored
in flash memory, it can be updated to support future
enhancements to the Plug and Play standard.
•
Universal Serial Bus (USB) capability, which can
simplify connecting peripheral devices such as mice,
printers, and computer speakers. The USB connectors on your computer’s back panel provide a single
connection point for multiple USB-compliant
devices. USB-compliant devices can also be connected and disconnected while the system is running.
•
A modular computer chassis with a minimum number of screws for easy disassembly and improved
serviceability.
•
A chassis designed for both horizontal (desktop) and
vertical (mini tower) use. Although the chassis is
optimized for horizontal positioning, an optional
floor stand can be purchased that, when attached,
makes the system into a mini tower (for instructions
on attaching the floor stand, see “Using the Optional
Floor Stand” found later in this chapter).
The system board includes the following built-in
features:
•
One 16-bit ISA expansion slot, one shared PCI/ISA
expansion slot, and one PCI expansion slot on the
riser board.
•
A 64-bit PCI local bus video subsystem, which
includes the S3 Trio64V+ 86C765 super video
graphics array (SVGA) video controller and 2 MB
of video memory. Maximum resolutions are
1280 x 1024 pixels with 256 colors noninterlaced
and 1024 x 768 pixels with 65,536 colors noninterlaced. In 800 x 600- and 640 x 480-pixel
resolutions, 16.7 million colors are available for
true-color graphics.
•
A diskette/tape drive interface, which supports a
3.5-inch diskette drive and , optionally, a second diskette drive or tape drive.
•
Enhanced integrated drive electronics (EIDE) support. The primary and secondary interface are both
located on the PCI bus to provide faster data
throughput. Each interface supports high-capacity
EIDE drives, as well as devices such as EIDE
CD-ROM drives a nd EIDE tape drives.
•
One high-performance serial port and one bidirectional parallel port for connecting external
devices. The parallel port is fully Enhanced Capabilities Port (ECP) compliant.
•
A Personal System/2 (PS/ 2) -st y le k e ybo ard po rt and
a PS/2-compatible mouse port.
•
An integrated 10/100 megabit-per-second (Mbps)
3Com® PCI 3C905TX Ethernet network interface
controller (NIC), which uses the 3C916 chip. The
NIC is configured using software described in Chapter 4, “Using Integrated Devices.”
•
A 16-bit integrated Crystal CS4236 audio contr oller
that provides all the sound functions of the Sound
Blaster Pro expansion card. For information, see
your online
The following software is included with your Dell computer system:
•
Utilities that safeguard your system and enhance the
operation of its hardware features, such as maximizing your monitor’s resolution capabilities. For
information on these utilities, see your online
User’s Guide
•
Video drivers for displaying many popular application programs in high-resolution mod e s. For more
information on these utilities, see your online
User’s Guide
•
The System Setup program for quickly viewing and
changing the system configuration information for
your system. For more information on this program,
see Chapter 2, “Using the System Setup Program.”
•
An Auto Power On utility that enables your system
to perform routine tasks automatically in your
absence. For more information on this utility, see
your online
•
Enhanced security features available through the
System Setup program (a setup pas sword, a system
password, a system password lock option, a writeprotect option for diskette drives, and automatic
display of the system’s service tag number). In addition, a customer-definable asset tag number can be
assigned via a software support utility and viewed on
the System Setup screens. For more information, see
System User’s Guide
.
.
System User’s Guide
.
System
System
.
1-2Dell OptiPlex GXi Low-Profile Systems Reference and Installation Guide
your online
“Using the System Setup Pr ogram.”
•
Advanced power management options that can
reduce the energy consumption of your system. For
more information, see Chapter 2, “Using the System
Setup Program.”
•
The ICU, which tells you how to configure ISA
expansion cards manually . After resources have been
assigned to these cards, the system BIOS can assign
resources to PCI and Plug and Play expansion cards
for a conflict-free configuration. For more information, see Chapter 3, “Using the ISA C onfiguration
Utility.”
•
Dell diagnostics for evaluating the computer’s components and devices. For information on using the
diagnostics, see the chapter titled “Running the
Diskette-Based Diagnostics” in the
Troubleshooting Guide
•
Network device drivers for several network operating systems. These drivers are described in
Chapter 4, “Using Integrated Devices.”
•
Desktop Management Interface (DMI) support,
which enables the management of your computer
system’s software and hardware. DMI defines the
software, interfaces, and data files that enable your
system to determine and report information about its
components.
If your system has a Dell-installed Microsoft
Windows®, Windows for Workgroups™, or Windows NT operating system, DMI is already installed
on your system’s hard-disk drive. You can enable
DMI support by doubl e-clicki ng the DMI icon i n the
Windows Control Panel (located in the Main program group or folder). For instructions on enabling
DMI support or for information about DMI, refer to
the DMI online help. You can access the online help
by double-clicking the DMI icon in the Control
Panel. The DMI online help is also provided in the
Dell Accessories program group or folder.
System User’s Guide
.
and Chapter 2,
Diagnostics and
•
The Dell Inspector utility, which uses DMI support
to display detailed in formation about the hardware
and software configuration for your system. The
Dell Inspector utility provides you with the information you may need if you call Dell for technical
assistance. It also provides you with the information
you may need when you ins tall hard ware or soft ware
in your system. The Dell Inspector utility is located
in the Dell Accessories program group or folder.
If you ordered Dell-installed software with your system,
such as MS-DOS®, Microsoft Windows, or other programs, Dell provides a menu that allows you to make
program diskette sets of your Dell-installed software. A
program diskette set
ware package that you can use to reinstall or reconfigure
the software. You can use this same menu to remove
kette image files
diskette in a program diskette set) to reclaim space o n the
computer’s hard-disk drive. For more information on
making program diskette sets, see the online help provided in the Dell DiskMaker program, which is available
in the Dell Accessories program group or folder.
sing the Optional Floor Stand
U
An optional floor stand is available for your system that
you can attach to the computer to give it a mini tower
(vertical) orientation. Although you can attach (and
remove) the floor stand at any time with a minimum of
system disruption, it is easiest to attach before you set up
your computer and connect the back panel cables.
Attach the floor stand as follows:
1.Turn the computer onto its right side, so that the
drive bays are at the bottom.
2.Fit the floor stand onto what
the computer.
Position the floor stand as shown in Figure 1-1.
Align the large round hole in the floor stand with the
securing button on the side of the cover, and align
the captive thumbscrew in the stand with the screw
hole in the cover.
is an uninstalled version of a soft-
dis-
(individual files that correspond to each
the left sid e of
was
Introduction1-3
captive screw
locator
hole
locator pin
(on underside of floor
stand)
Figure 1-1. Attaching the Optional Floor
Stand
As you lower the stand into place, make sure the
locator pin (see Figure 1-1) heads into the corner
hole of the hole pattern as shown. When the stand is
in place, tighten the thumbscrew.
3.Rotate the computer so that the floor stand is at
the bottom and the drives are at the top.
To remove the floor stand, turn the computer over so the
floor stand is at the top, loosen the screw and lift the floor
stand away, and place the computer in a horizontal
position.
securing
button
slot on the back of your computer, and lock the device
with the key provided. Complete instructions for installing this kind of antitheft device are usually included with
the device.
NOTE: Antitheft devices are of differing designs. Before
purchasing such a device, make sure it will work with the
cable slot on your computer.
The padlock ring allows you to secure the computer
cover to the chassis to prevent unauthorized access to the
inside of the computer. To use the padlock ring, insert a
commercially available padlock through the ring and
then lock the padlock.
padlock ring
security cable slot
fan vent
Figure 1-2. Security Cable Slot and Padlock
Ring
nergy Star Compliance
E
ecurity Cable Slot and Padlock
S
Ring
To the right of the fan vent on the back of the computer
are a security cable slot and padlock ring ( see Figure 1-2)
for attaching a commercially available antitheft device.
Antitheft cable devices for personal computers usually
include a segment of galvanized cable with an attached
locking device and key. To prevent unauthorized removal
of your computer, loop the cable around an immovable
object, insert the locking device into the security cable
1-4Dell OptiPlex GXi Low-Profile Systems Reference and Installation Guide
Certain configuration s of Dell com puter systems comply
with the requirements set forth by the Environmental
Protection Agency (EPA) for energy-efficient computers.
If the front panel of your computer bears the Energy Star
Emblem (see Figure 1-3), your original configuration
complied with these requirements and all Energy Star
power management features of the computer are enabled.
To disable or change the operation of these features, you
must change the setting for the
category in the System Setup program. For instructions,
see Chapter 2, “Using the System Setup Program.”
POWER MANAGEMENT
NOTES: As an Energy Star Partner, Dell Computer Corporation has determined that this product meets the
Energy Star guidelines for energy efficiency.
Any Dell computer bearing the Energy Star Emblem is
certified to comply with EPA Energy Star requirements
configured when shipped by Dell
make to this configuration (such as installing additional
expansion cards or drives) may increase the system’s
power consumption beyond the limits set by the EPA’s
Energy Star Computers program.
Figure 1-3. Energy Star Emblem
The EPA's Energy Star Computers program is a joint
effort between the EPA and computer manufacturers to
reduce air pollution by promoting energy-efficient computer products. The EPA estimates that use of Energy
Star computer products can save computer users up to
two billion dollars annually in electricity costs. In turn,
this reduction in electricity usage can reduce emissions of
carbon dioxide, the gas primarily responsible for the
greenhouse effect, and sulfur dioxide and nitrogen
oxides, which are the two primary causes of acid rain.
Computer users can also help to reduce electricity usage
and its side effects by turning off their computer systems
when they are not in use for extended periods of time—
particularly at night and on weekends.
mportant Note to Windows 95
I
. Any changes you
TM
as
Users
For the Microsoft Windows 95 operat ing system to work
correctly on your computer system, you
sion of Windows 95 t h at Dell i n st all ed o n your computer.
use the ver-
must
Should you need to reinstall Wind ows 95 on an OptiPlex
GXi system
install the correct version. Dell recommends performing
a periodic tape backup of the system’s entire hard-disk
drive so that, if necessary, the operating system, drivers,
and other software can be reinstalled as originally configured with a minimum of downtime.
If you are unable to reinstall your software from a tape
backup of the hard-disk drive, you can reinstall Windows 95 from the system’s Windows 95 backup media
(CD or diskettes) that you received from Dell or created
from the Dell-installed software on your system.
ever, if you reinstall Windows 95 in this manner, the busmastering functionality of the Windows 95 EIDE driver,
which was operative in your or iginal configuration, will
be disabled
mastering functionality with only a small degradation in
performance. For information o n the ad vantag es of using
bus-mastering drivers, see “Bus-Mastering IDE Drivers”
in the online
reinstall your system’s video, audio, and NIC drivers
from the diskettes created from the Dell-installed so ftware on your system.
NOTE to system administrators of corporate networ ks:
If you must download W indows 95 f rom a se rver to cli ent
systems, make sure that you have the Windows 95 backup
media for the OptiPlex GXi system on your server before
downloading.
A
for any reason, you must be sure to re-
. (Your system will operate without the bus-
System User’s Guide.) You may also need to
ccessing Online
How-
Documentation
The online
disk drive contains information on the following topics:
•
•
•
•
•
•
•
•
System User’s
How to use the online
System features
Video drivers and utilities
Using the integrated audio controller
System Setup program
Configuring expansion cards
Securing your computer
Connecting external devices
Guide installed on your hard-
System User’s Guide
Introduction1-5
•
Maintaining the system
•
Contacting Dell
The guide also contains a glossary of commonly used
terms and abbreviations.
The
System User’s Guide
ries program group or folder.
To print any of the topics from this guide, display the
topic you want on your screen, and select PRINT TOPIC
from the File menu.
NOTE: Text in pop-up windows cannot be printed.
is located in the Dell Accesso-
etting Help
G
Dell provides a number of tools to help you if you don’t
understand a procedure described in this guide or if your
system does not perform as expected. For in formatio n on
these help tools, see the chapter titled “Getting Help” in
Diagnostics and Troubleshooting Guide
your
“Contacting Dell” section in the online
Guide
.
or the
System User’s
1-6Dell OptiPlex GXi Low-Profile Systems Reference and Installation Guide
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