Dell GX240 - OptiPlex Pentium 4 1.8GHz 512MB 40GB CD... User manual

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Dell™ OptiPlex™ GX240 Systems
User’s Guide

Notes, Notices, and Cautions
NOTE: A NOTE indicates important information that helps you make better
use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of
data and tells you how to avoid the problem.
CAUTION: A CAUTION indicates a potential for property damage,
personal injury, or death.
Abbreviations and Acronyms
For a complete list of abbreviations and acronyms, see the “Glossary.”
____________________
Information in this document is subject to change without notice.
© 2001–2002 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer
Corporation is strictly forbidden.
Trademarks used in this text:
Dell , the DELL logo, OptiPlex , and Dell OpenManage are
trademarks of Dell Computer Corporation;
Intel and Pentium are registered trademarks of Intel
Corporation;
Microsoft, Windows NT, MS-DOS, and Windows are registered trademarks of
Microsoft Corporation;
3Com is a registered trademark of 3Com Corporation; IBM is a registered
trademark of International Business Machines Corporation;
NetWare and Novell are registered
trademarks of Novell, Inc. As an ENERGY STAR partner, Dell Computer Corporation has
determined that this product meets the ENERGY STAR guidelines for energy efficiency.
Other trademarks and trade names may be used in this document to refer to either the entities
claiming the marks and names or their products. Dell Computer Corporation disclaims any
proprietary interest in trademarks and trade names other than its own.
Models: DHS, DHP, and DHM
September 2002 4G172 Rev. A04

Contents 1
Contents
CAUTION: Safety Instructions . . . . . . . . . . . . . . . . . . . 9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
When Using Your Computer . . . . . . . . . . . . . . . . . . . . 11
When Working Inside Your Computer . . . . . . . . . . . . . . 12
Protecting Against Electrostatic Discharge . . . . . . . . . . . 13
Ergonomic Computing Habits . . . . . . . . . . . . . . . . . . 13
Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . 14
1About Your Computer
Finding Information and Assistance . . . . . . . . . . . . . . . . 16
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Front Panel Door . . . . . . . . . . . . . . . . . . . . . . . . 22
Speaker/Headphone Connector . . . . . . . . . . . . . . . . . 23
Power Button . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Power Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Floppy Drive Access Light . . . . . . . . . . . . . . . . . . . . 26
Hard Drive Access Light . . . . . . . . . . . . . . . . . . . . 26
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Connecting Devices . . . . . . . . . . . . . . . . . . . . . . . 29
Parallel Connector . . . . . . . . . . . . . . . . . . . . . . . 30
Mouse Connector . . . . . . . . . . . . . . . . . . . . . . . . 30
USB Connectors . . . . . . . . . . . . . . . . . . . . . . . . 30
Integrated Network Adapter Connector . . . . . . . . . . . . . 30
Network Cable Requirements . . . . . . . . . . . . . . . . . . 30
Line-In Jack . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Line-Out Jack . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2Contents
Microphone Jack . . . . . . . . . . . . . . . . . . . . . . . . 31
Video Connector . . . . . . . . . . . . . . . . . . . . . . . . 31
Serial Connectors . . . . . . . . . . . . . . . . . . . . . . . 31
Keyboard Connector . . . . . . . . . . . . . . . . . . . . . . 31
Inside Your Computer . . . . . . . . . . . . . . . . . . . . . . . 32
System Board Components . . . . . . . . . . . . . . . . . . . 36
2Advanced Features
LegacySelect Technology Control . . . . . . . . . . . . . . . . . 40
Manageability . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Dell OpenManage™ IT Assistant . . . . . . . . . . . . . . . . 40
Dell OpenManage Client Instrumentation . . . . . . . . . . . . 41
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Chassis Intrusion Detection . . . . . . . . . . . . . . . . . . 41
Padlock Ring and Security Cable Slot . . . . . . . . . . . . . 42
Password Protection . . . . . . . . . . . . . . . . . . . . . . . . 43
System Password . . . . . . . . . . . . . . . . . . . . . . . 43
Setup Password . . . . . . . . . . . . . . . . . . . . . . . . 45
Disabling a Forgotten Password . . . . . . . . . . . . . . . . 47
Computer Settings . . . . . . . . . . . . . . . . . . . . . . . . 48
Entering System Setup . . . . . . . . . . . . . . . . . . . . . 48
System Setup Screens . . . . . . . . . . . . . . . . . . . . . 48
Changing the Boot Sequence During System Setup . . . . . . . 51
Changing the Boot Sequence in System Setup . . . . . . . . . 51
Additional System Setup Options . . . . . . . . . . . . . . . . . 52
If You Have a Problem . . . . . . . . . . . . . . . . . . . . . 58
Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Software Installation and Configuration . . . . . . . . . . . . . 60

3Contents
3Installing Upgrades
Computer Cover . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Opening the Computer Cover . . . . . . . . . . . . . . . . . . 64
Closing the Computer Cover . . . . . . . . . . . . . . . . . . 67
Expansion Cards . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Installing an Expansion Card . . . . . . . . . . . . . . . . . 69
Removing an Expansion Card . . . . . . . . . . . . . . . . . 77
Installing an AGP Graphics Card . . . . . . . . . . . . . . . . 79
Removing an AGP Card . . . . . . . . . . . . . . . . . . . . 82
Expansion-Card Cage (Small Desktop Computer Only) . . . . . . 83
Removing the Expansion-Card Cage . . . . . . . . . . . . . . 83
Replacing the Expansion-Card Cage . . . . . . . . . . . . . . 84
TAPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Installing a TAPI Device . . . . . . . . . . . . . . . . . . . . 86
Installing a TAPI Sound Card . . . . . . . . . . . . . . . . . 87
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Installing DIMMs . . . . . . . . . . . . . . . . . . . . . . . 88
Removing DIMMs . . . . . . . . . . . . . . . . . . . . . . . 90
Microprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Removing the Heat Sink or Heat-Sink/Blower Assembly . . . . 93
Removing the Microprocessor . . . . . . . . . . . . . . . . . 97
Installing the Microprocessor . . . . . . . . . . . . . . . . . 98
Replacing the Heat Sink or Heat-Sink/Blower Assembly . . . . 100
Front Panel Inserts . . . . . . . . . . . . . . . . . . . . . . . . 101
Removing Front Panel Inserts—Small Form-Factor and Small Desktop
Computers . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Removing Front Panel Inserts—Small Mini-Tower Computer . . 104
Replacing Front Panel Inserts . . . . . . . . . . . . . . . . . 105
Internal Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
IDE Drive Addressing . . . . . . . . . . . . . . . . . . . . . 108
Connecting Drives . . . . . . . . . . . . . . . . . . . . . . . 109

4Contents
Hard Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Detaching Hard Drive Cables . . . . . . . . . . . . . . . . . . 112
Removing a Hard Drive . . . . . . . . . . . . . . . . . . . . 116
Installing a Hard Drive . . . . . . . . . . . . . . . . . . . . . 118
Reattaching Hard Drive Cables . . . . . . . . . . . . . . . . . 119
Adding a Second Hard Drive — Small Mini-Tower Computer . . 123
Floppy Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Detaching Floppy Drive Cables . . . . . . . . . . . . . . . . . 126
Removing a Floppy Drive . . . . . . . . . . . . . . . . . . . . 129
Installing a Floppy Drive and Reattaching Cables . . . . . . . . 132
CD/DVD Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Detaching CD, CD-RW, or DVD Drive Cables . . . . . . . . . . 138
Removing a CD, CD-RW, or DVD Drive . . . . . . . . . . . . 141
Installing a CD, CD-RW, or DVD Drive and Reattaching Cables 143
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Replacing the Battery . . . . . . . . . . . . . . . . . . . . . 148
4Stand
Removing the Computer Stand . . . . . . . . . . . . . . . . . . 152
Attaching the Computer Stand . . . . . . . . . . . . . . . . . . 153
5Technical Specifications
6Solving Problems
Finding Solutions . . . . . . . . . . . . . . . . . . . . . . . . . 164
Using the Dell OptiPlex ResourceCD . . . . . . . . . . . . . . 165
Power Problems . . . . . . . . . . . . . . . . . . . . . . . . 166
Video and Monitor Problems . . . . . . . . . . . . . . . . . . 166
Sound and Speaker Problems . . . . . . . . . . . . . . . . . 168
Printer Problems . . . . . . . . . . . . . . . . . . . . . . . . 169

5Contents
Serial or Parallel Device Problems . . . . . . . . . . . . . . . 170
Mouse Problems . . . . . . . . . . . . . . . . . . . . . . . . 172
Keyboard Problems . . . . . . . . . . . . . . . . . . . . . . 173
Floppy Drive Problems . . . . . . . . . . . . . . . . . . . . . 174
Hard Drive Problems . . . . . . . . . . . . . . . . . . . . . . 176
Battery Problems . . . . . . . . . . . . . . . . . . . . . . . 179
Expansion Card Problems . . . . . . . . . . . . . . . . . . . 180
Recovering From a Program That Is Not Responding . . . . . . 181
Restarting a Computer That Is Not Responding . . . . . . . . . 182
Repairing a Wet Computer . . . . . . . . . . . . . . . . . . . 182
Repairing a Dropped or Damaged Computer . . . . . . . . . . 183
Hardware Conflicts . . . . . . . . . . . . . . . . . . . . . . 184
Computer Memory Problems . . . . . . . . . . . . . . . . . . 184
System Board Problems . . . . . . . . . . . . . . . . . . . . 185
Resetting a Damaged System Board . . . . . . . . . . . . . . 187
Dell Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . 187
When to Use the Dell Diagnostics . . . . . . . . . . . . . . . 187
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Before You Start Testing . . . . . . . . . . . . . . . . . . . . 188
Running the Dell Diagnostics . . . . . . . . . . . . . . . . . . 188
Advanced Testing . . . . . . . . . . . . . . . . . . . . . . . 190
Advanced Testing Help Menu . . . . . . . . . . . . . . . . . . 192
Messages and Codes . . . . . . . . . . . . . . . . . . . . . . . . 192
Computer Messages . . . . . . . . . . . . . . . . . . . . . . 193
Computer Beep Codes . . . . . . . . . . . . . . . . . . . . . 200
Warning Messages . . . . . . . . . . . . . . . . . . . . . . . 202
Diagnostics Messages . . . . . . . . . . . . . . . . . . . . . 203
Diagnostic Lights . . . . . . . . . . . . . . . . . . . . . . . 203
Front Panel Lights . . . . . . . . . . . . . . . . . . . . . . . 203
Back Panel Lights . . . . . . . . . . . . . . . . . . . . . . . 204
Software Problems . . . . . . . . . . . . . . . . . . . . . . . . 206
Operating System Compatibility . . . . . . . . . . . . . . . . 207
Input Errors . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . 208

6Contents
Device Drivers . . . . . . . . . . . . . . . . . . . . . . . . . 208
Memory-Resident Programs . . . . . . . . . . . . . . . . . . 208
Program Conflicts . . . . . . . . . . . . . . . . . . . . . . . 209
Memory Address Conflicts . . . . . . . . . . . . . . . . . . . 209
Interrupt Assignment Conflicts . . . . . . . . . . . . . . . . . 209
7Getting Help
Technical Assistance . . . . . . . . . . . . . . . . . . . . . . . . 212
Online Services . . . . . . . . . . . . . . . . . . . . . . . . 212
AutoTech Service . . . . . . . . . . . . . . . . . . . . . . . 213
Automated Order-Status Service . . . . . . . . . . . . . . . . 214
Technical Support Service . . . . . . . . . . . . . . . . . . . 214
Problems With Your Order . . . . . . . . . . . . . . . . . . . . . 214
Product Information . . . . . . . . . . . . . . . . . . . . . . . . 214
Returning Items for Warranty Repair or Credit . . . . . . . . . . 214
Before You Call . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Contacting Dell . . . . . . . . . . . . . . . . . . . . . . . . . . 217
8Additional Information
Regulatory Notices . . . . . . . . . . . . . . . . . . . . . . . . 236
FCC Notices (U.S. Only) . . . . . . . . . . . . . . . . . . . . 237
IC Notice (Canada Only) . . . . . . . . . . . . . . . . . . . . 239
CE Notice (European Union) . . . . . . . . . . . . . . . . . . 239
ENERGY STAR®Compliance . . . . . . . . . . . . . . . . . 240
Simplified Chinese Class A Warning Notice (China Only) . . . . 241
EN 55022 Compliance (Czech Republic Only) . . . . . . . . . 242
VCCI Notice (Japan Only) . . . . . . . . . . . . . . . . . . . 242
MIC Notice (Republic of Korea Only) . . . . . . . . . . . . . . 244
Polish Center for Testing and Certification Notice . . . . . . . 246
BSMI Notice (Taiwan Only) . . . . . . . . . . . . . . . . . . 248

Contents 7
NOM Information (Mexico Only) . . . . . . . . . . . . . . . 249
Warranty and Return Policy . . . . . . . . . . . . . . . . . . . 250
Ergonomic Computing Habits . . . . . . . . . . . . . . . . . . . 1
9Microsoft® Windows® XP Features
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Help and Support Center . . . . . . . . . . . . . . . . . . . . 4
New User Interface . . . . . . . . . . . . . . . . . . . . . . . . . 5
Switching to Classic View . . . . . . . . . . . . . . . . . . . . 5
Clean Desktop Wizard . . . . . . . . . . . . . . . . . . . . . . 6
Taskbar Grouping . . . . . . . . . . . . . . . . . . . . . . . . 7
Notification Area Cleanup . . . . . . . . . . . . . . . . . . . . 7
Files and Settings Transfer Wizard . . . . . . . . . . . . . . . . . 8
Application and Device Compatibility . . . . . . . . . . . . . . . 9
Program Compatibility Wizard . . . . . . . . . . . . . . . . . 9
System Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Using System Restore . . . . . . . . . . . . . . . . . . . . . . 11
Restore Process . . . . . . . . . . . . . . . . . . . . . . . . . 12
Driver Rollback . . . . . . . . . . . . . . . . . . . . . . . . . 13
User Accounts and Fast User Switching . . . . . . . . . . . . . . 14
How to Use Fast User Switching . . . . . . . . . . . . . . . . 14
What Happens When a Fast User Switch Occurs? . . . . . . . . 15
Special Considerations With Fast User Switching . . . . . . . . 15
How to Turn Off Fast User Switching . . . . . . . . . . . . . . 16
How to Add Users . . . . . . . . . . . . . . . . . . . . . . . . 16
Home and Small Office Networking . . . . . . . . . . . . . . . . 17
Network Setup Wizard . . . . . . . . . . . . . . . . . . . . . 17
Internet Connection Firewall . . . . . . . . . . . . . . . . . . . . 18

8Contents

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DELL CONFIDENTIAL – PRELIMINARY 9/26/02
CAUTION: Safety Instructions
Use the following safety guidelines to help ensure your own personal safety and to help protect
your computer and working environment from potential damage.
General
• Do not attempt to service the computer yourself unless you are a trained service
technician. Always follow installation instructions closely.
• To help prevent electric shock, plug the computer and device power cables into properly
grounded electrical outlets. These cables are equipped with 3-prong plugs to help 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 avoid the potential hazard of electric shock, do not use your computer during an
electrical storm.
• To help avoid the potential hazard of electric shock, do not connect or disconnect any
cables or perform maintenance or reconfiguration of this product during an electrical
storm.
• If your computer includes a modem, the cable used with the modem should be
manufactured with a minimum wire size of 26 American wire gauge (AWG) and an FCC-
compliant RJ-11 modular plug.
• Before you clean your computer, disconnect the computer from the electrical outlet.
Clean your computer with a soft cloth dampened with water. Do not use liquid or aerosol
cleaners, which may contain flammable substances.
• To help avoid possible damage to the system board, wait 5 seconds after turning off the
computer before disconnecting a device from the computer.

10
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• To avoid shorting out your computer when disconnecting a network cable, first unplug
the cable from the network adapter on the back of your computer, and then from the
network jack. When reconnecting a network cable to your computer, first plug the cable
into the network jack, and then into the network adapter.
• To help protect your computer from sudden, transient increases and decreases in
electrical power, use a surge suppressor, line conditioner, or uninterruptible power supply
(UPS).
• Ensure that nothing rests on your computer’s cables and that the cables are not located
where they can be stepped on or tripped over.
• 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 your computer; do not place your computer
in a closed-in wall unit or on a bed, sofa, or rug.
• Do not spill food or liquids on your computer. If the computer gets wet, consult
"Repairing a Wet Computer."
• Do not use your computer during an electrical storm unless the AC adapter cable has
been disconnected from the electrical outlet.
• When you use the AC adapter to run the computer or to charge the battery, place the AC
adapter in a ventilated area, such as a desk top or on the floor.
• The AC adapter may become hot during normal operation of your computer. Use care
when handling the adapter during or immediately after operation.
CAUTION: Safety Instructions (continued)

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When Using Your Computer
As you use your computer, observe the following safe-handling guidelines.
CAUTION: Do not operate your computer with any cover(s) (including computer
covers, bezels, filler brackets, front-panel inserts, and so on) removed.
• Your computer is equipped with one of the following:
– A fixed-voltage power supply — Computers with a fixed-voltage power supply do not
have a voltage selection switch on the back panel and operate at only one voltage (see
the regulatory label on the outside of the computer for its operating voltage).
– An auto-sensing voltage circuit — Computers with an auto-sensing voltage circuit do
not have a voltage selection switch on the back panel and automatically detect the
correct operating voltage.
– A manual voltage selection switch — Computers with a voltage selection switch on
the back panel must be manually set to operate at the correct operating voltage.
NOTICE: To help avoid damaging a computer with a manual voltage selection switch, set the
switch for the voltage that most closely matches the AC power available in your location. For Japan,
the voltage selection switch must be set to the 115-V position even though the AC power available in
Japan is 100 V. Also, ensure that your monitor and attached devices are electrically rated to
operate with the AC power available in your location.
• Before working inside the computer, unplug the computer to help prevent electric shock
or system board damage. Certain system board components continue to receive power
any time the computer is connected to AC power.

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When Working Inside Your Computer
Before you open the computer cover, perform the following steps in the sequence indicated.
CAUTION: Do not attempt to service the computer yourself, except as explained in
your online Dell™ documentation or in instructions otherwise provided to you by
Dell. Always follow installation and service instructions closely.
NOTICE: To help avoid possible damage to the system board, wait 5 seconds after turning off the
computer before removing a component from the system board or disconnecting a device from the
computer.
1Perform an orderly computer shutdown using the operating system menu.
2Turn off your computer and any devices connected to the computer.
3Ground yourself by touching an unpainted metal surface on the chassis, such as the metal
around the card-slot openings 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.
4Disconnect your computer and devices, including the monitor, from their electrical
outlets. Also, disconnect any telephone or telecommunication lines from the computer.
Doing so reduces the potential for personal injury or shock.
In addition, take note of these safety guidelines when appropriate:
• 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, ensure that both connectors are correctly oriented and
aligned.
When Using Your Computer (continued)

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• Handle components and cards with care. Do not touch 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.
CAUTION: There is a danger of a new battery exploding if it is incorrectly installed.
Replace the battery only with the same or equivalent type recommended by the
manufacturer. Do not dispose of the battery along with household waste. Contact
your local waste disposal agency for the address of the nearest battery deposit site.
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 touching an unpainted
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.
You can also take the following steps to prevent damage from electrostatic discharge (ESD):
• Do not remove components from their antistatic packing material until you are ready to
install the component in your computer. Just before unwrapping the antistatic packaging,
discharge static electricity from your body.
• When transporting an electrostatic sensitive component, first place it in an antistatic
container or packaging.
• Handle all electrostatic sensitive components in a static-safe area. If possible, use
antistatic floor pads and workbench pads.
Ergonomic Computing Habits
CAUTION: Improper or prolonged keyboard use may result in injury.
CAUTION: Viewing the monitor screen for extended periods of time may result in
eye strain.
For comfort and efficiency, observe the ergonomic guidelines in "Ergonomic Computing
Habits" when setting up and using your computer.
When Using Your Computer (continued)

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DELL CONFIDENTIAL – PRELIMINARY 9/26/02
Battery Disposal
Your computer uses a lithium battery. The lithium battery is a long-life battery, and it is very
possible that you will never need to replace it. However, should you need to replace it, see
"Replacing the Battery."
Do not dispose of the battery along with household waste. Contact your local waste disposal
agency for the address of the nearest battery deposit site.
When Using Your Computer (continued)

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1
SECTION 1
About Your Computer
Finding Information and Assistance
Front Panel
Back Panel
Inside Your Computer

16 About Your Computer
www.dell.com | support.dell.com
Finding Information and Assistance
The following table lists the resources that Dell provides as support tools.
Additional resources may be shipped with your computer system.
Resources and Support Tools
Resources Contents Using the Resource
Dell OptiPlex ResourceCD
• Dell Diagnostics
• Drivers
•Utilities
• Computer and device
documentation
See the main menu on the ResourceCD that was shipped
with your computer. Use the pull-down menu to make
selections appropriate for your computer. You can perform
the following tasks:
• Diagnose a problem
• Install or reinstall drivers
• Obtain information on your computer and devices
NOTE: User documentation and drivers are already
installed on your computer when shipped from Dell. You
can use this CD to access documentation, reinstall drivers,
or run diagnostics tools. You must boot your computer
from this CD to run the diagnostics, which may require
changing your computer’s boot sequence.
For more information on using the ResourceCD, see
“Using the Dell OptiPlex ResourceCD.”
Setup and Quick Reference
Guide
• Getting started/setup
• Support tools
• Solving Problems
See the Setup and Quick Reference Guide for information
on the following:
• Setting up your computer
• Finding and using support resources
• Diagnosing a problem
• Using tools and utilities

About Your Computer 17
Service and Registration
Labels—located on the front
or side of your Dell™
computer.
• Express Service Code and
Service Tag Number
• Product Key (also called the
Product ID or Certificate of
Authenticity [COA])
The Express Service Code and Service Tag Number are
unique identifiers for your Dell computer.
You may need the Product Key (or Product ID) number to
complete the operating system setup.
Operating System CD To reinstall your operating system, use the Operating
System CD that was shipped with your computer.
NOTE: The operating system CD may not include all the
latest drivers for your computer. If you reinstall your
operating system, use the
ResourceCD to reinstall drivers
for the devices shipped with your computer.
For more information about reinstalling your operating
system, see the operating system installation
documentation that was shipped with your computer.
Operating system installation
guide
See the operating system installation guide for
information on reinstalling and configuring your
operating system.
Click the Start button and select Help or Help and
Support, depending on your operating system, to obtain
more information on your operating system.
Resources and Support Tools
(continued)
Resources Contents Using the Resource

18 About Your Computer
www.dell.com | support.dell.com
User’s guides for your
computer and devices
Depending on your operating system, double-click the
User’s Guides icon on your desktop or click the Start
button and then select Help and Support to access the
electronic documentation stored on your hard drive.
Obtain information on the following:
• Using your computer
• Configuring system settings
• Removing and installing parts
• Installing and configuring software
• Diagnosing a problem
• Technical specifications
• Device documentation (on selected operating systems)
• Getting technical assistance
Dell Support website
• Technical support and
information
• Downloads for your
computer
•Orderordeliverystatus
• Hints and tips, technology
papers, service information
Go to Dell Support website at support.dell.com and
complete the one-time registration.
• Get help with general usage, installation, and
troubleshooting questions
• Obtain answers to technical service and support
questions
• Get the latest versions of the drivers for your computer
• Access documentation about your computer and
devices
• Join online discussions with other Dell customers and
Dell technical professionals
• Explore a list of online links to Dell's primary vendors
Dell Premier Support website
• Service call status
• Top technical issues by
product
•Frequentlyaskedquestions
by product number
• Customized service tags
• System configuration detail
Go to premiersupport.dell.com:
The Dell Premier Support website is customized for
corporate, government, and education customers.
This site may not be available in all regions.
Resources and Support Tools
(continued)
Resources Contents Using the Resource
User’s Guides