Dell Precision 390 User Manual [en, de, es, fr, it]

Dell Precision™ Workstation 390

Quick Reference Guide

Model DCTA
www.dell.com | support.dell.com
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
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 Glossary in your
If you purchased a Dell™ n Series computer, any references in this document to Microsoft
User’s Guide
.
®
Windows®
operating systems are not applicable.
____________________
Information in this document is subject to change without notice. © 2006 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.; Red Hat is a registered trademark of Red Hat Corporation.
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 Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
Model DCTA
May 2006 P/N FH422 Rev. A00

Contents

Finding Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Setting Up Your Computer (Tower Orientation)
Setting Up Your Computer (Desktop Orientation)
About Your Computer
Front View (Tower Orientation) Back View (Tower Orientation) Front View (Desktop Orientation) Back View (Desktop Orientation) Back-Panel Connectors Inside View
System Board Components
Locating Your User’s Guide
Removing the Computer Cover
Caring for Your Computer
Solving Problems
Troubleshooting Tips
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
. . . . . . . . . . . . . . . . . . . . . . . 19
. . . . . . . . . . . . . . . . . . . . . . . 21
. . . . . . . . . . . . . . . . . . . . . . 22
. . . . . . . . . . . . . . . . . . . . . . 24
. . . . . . . . . . . . . . . . . . . . . . . . . . 25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
. . . . . . . . . . . . . . . . . . . . . . . . . . . 29
. . . . . . . . . . . . . . . . . . . . . . . . . . 30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Resolving Software and Hardware Incompatibilities Using Microsoft Windows XP System Restore Using the Last Known Good Configuration Dell Diagnostics Before You Start Testing
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
. . . . . . . . . . . . . . . . . . . . . . . . . . 36
. . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . . 14
. . . . . . . . . . . 32
. . . . . . . . . . . . . . . 32
. . . . . . . . . . . . . . . . . 34
Beep Codes
Diagnostic Lights
Frequently Asked Questions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Error Messages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
. . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Contents 3
4 Contents

Finding Information

NOTE: Some features may not be available for your computer or in certain countries.
NOTE: Additional information may ship with your computer.
What Are You Looking For? Find It Here
• A diagnostic program for my computer
• Drivers for my computer
• My computer documentation
• My device documentation
• Desktop System Software (DSS)
• How to set up my computer
• How to care for my computer
• Basic troubleshooting information
• How to run the Dell Diagnostics
• Error codes and diagnostic lights
• How to remove and install parts
• How to open my computer cover
Drivers and Utilities CD (also known as ResourceCD)
Documentation and drivers are already installed on your computer. You can use the CD to reinstall drivers, run the "Dell Diagnostics" on page 34, or access your documentation.
NOTE: Drivers and documentation updates can be found
at support.dell.com.
NOTE: The Drivers and Utilities CD is optional and may
not ship with your computer.
Quick Reference Guide
Readme files may be included on your CD to provide last-minute updates about technical changes to your computer or advanced technical-reference material for technicians or experienced users.
NOTE: The Quick Reference Guide is optional and may
not ship with your computer.
NOTE: This document is available as a PDF at
support.dell.com.
Quick Reference Guide 5
What Are You Looking For? Find It Here
• Warranty information
Dell™ Product Information Guide
• Terms and Conditions (U.S. only)
• Safety instructions
• Regulatory information
• Ergonomics information
• End User License Agreement
• How to remove and replace parts
• Specifications
• How to configure system settings
• How to troubleshoot and solve problems
• Service Tag and Express Service Code
• Microsoft Windows License Label
User’s Guide
Microsoft
®
Windows® XP Help and Support Center
1
Click the
2
Click
Start
User’s and system guides
button and click
Help and Support
and click
User’s guides
.
The User’s Guide is also available on the optional Drivers
CD
and Utilities
.
Service Tag and Microsoft Windows License
These labels are located on your computer.
• Use the Service Tag to identify your computer when you
support.dell.com
use or contact technical support.
• Enter the Express Service Code to direct your call when contacting technical support.
.
6 Quick Reference Guide
What Are You Looking For? Find It Here
• Solutions — Troubleshooting hints and tips, articles from technicians, online courses, frequently asked questions
• Community — Online discussion with other Dell customers
• Upgrades — Upgrade information for components, such as memory, the hard drive, and the operating
Dell Support Website — support.dell.com
NOTE: Select your region to view the appropriate support
site.
NOTE: Corporate, government, and education customers
can also use the customized Dell Premier Support website at premier.support.dell.com. The website may not be available in all regions.
system
• Customer Care — Contact information, service call and order status, warranty, and repair information
• Service and support — Service call status and support history, service contract, online discussions with technical support
• Reference — Computer documentation, details on my computer configuration, product specifications, and white papers
• Downloads — Certified drivers, patches, and software updates
• Desktop System Software (DSS) — If you reinstall the operating system for your computer, you should also reinstall the DSS utility. DSS provides critical updates for your operating system and support for Dell™ 3.5-inch USB floppy drives, Intel Pentium
®
M processors, optical drives, and USB
®
devices. DSS is necessary for correct operation of your Dell computer. The software automatically detects your computer and operating system and installs the updates appropriate for your configuration.
• How to use Windows XP
• Documentation for my computer
• Documentation for devices (such as a modem)
Windows Help and Support Center
1
Click the
2
Type a word or phrase that describes your problem and click the arrow icon.
3
Click the topic that describes your problem.
4
Follow the instructions on the screen.
Start
button and click
Help and Support
.
Quick Reference Guide 7
What Are You Looking For? Find It Here
• How to reinstall my operating system
Operating System CD
The operating system is already installed on your computer. To reinstall your operating system, use the Operating System CD. See your User’s Guide for instructions.
NOTE: The color of your CD varies based on the operating
system you ordered.
NOTE: The Operating System CD is optional and may
not ship with your computer.
• How to use Linux
• E-mail discussions with users of Dell Precision™ products and the Linux operating system
• Additional information regarding Linux and my Dell Precision computer
Dell Supported Linux Sites
• http://linux.dell.com
• http://lists.us.dell.com/mailman/listinfo/linux-precision
• http://docs.us.dell.com/docs/software/oslinux/
After you reinstall your operating system, use the optional Drivers and Utilities CD to reinstall drivers for the devices that came with your computer.
Your operating system product key label is located on your computer.
8 Quick Reference Guide

Setting Up Your Computer (Tower Orientation)

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located
in the Product Information Guide.
You must complete all steps to properly set up your computer.
Connect the keyboard and the mouse.
1
Connect the modem or the network cable.
2
NOTICE: Do not connect a modem cable to the
network adapter. Voltage from telephone communications can damage the network adapter.
NOTE: If your computer has a network card installed,
connect the network cable to the card.
Quick Reference Guide 9
Connect the monitor.
3
Depending on your graphics card, you can connect your monitor in various ways.
NOTE: You may need to use
the provided adapter or cable to connect your monitor to the computer.
10 Quick Reference Guide
For single- and dual-monitor capable cards with a single connector
One VGA Adapter
VGA
Use the VGA adapter when you have a single-monitor graphics card and you want to connect your computer to a VGA monitor.
Dual VGA Y Cable Adapter
Dual DVI Y Cable Adapter
VGA
VGA
Use the appropriate Y cable when your graphics card has a single connector and you want to connect your computer to one or two VGA monitors.
Use the appropriate Y cable when your graphics card has a single connector and you want to connect your computer to one or two DVI monitors.
DVI
DVI
The dual-monitor cable is color coded; the blue connector is for the primary monitor, and the black connector is for the secondary monitor. To enable dual-monitor support, both monitors must be attached to the computer when it starts.
Quick Reference Guide 11
For dual-monitor capable cards with one DVI connector and one VGA connector
One DVI Connector and One VGA Connector
DVI
VGA
Two VGA Connectors With One VGA Adapter
VGA
VGA
Use the appropriate connector(s) when you want to connect your computer to one or two monitors.
For dual-monitor capable cards with two DVI connectors
Two DVI Connectors
Two DVI Connectors With One VGA Adapter
DVI
DVI
Use the DVI connectors to connect your computer to one or two DVI monitors.
Use the VGA adapter to connect a VGA monitor to one of the DVI connectors on your computer
DVI
Use the VGA adapter when you want to connect your computer to two VGA monitors.
Two DVI Connectors With Two VGA Adapters
VGA
VGA
VGA
Use two VGA adapters to connect two VGA monitors to the DVI connectors on your computer.
12 Quick Reference Guide
Connect the
4
speakers.
NOTE: If your
computer has a sound card installed, connect the speakers to the card.
Connect the power
5
cables and turn on the computer and monitor.
Quick Reference Guide 13
Install additional software or devices.
6
Before you install any devices or software that did not come with your computer, read the documentation that came with the software or device or contact the vendor to verify that the software or device is compatible with your computer and operating system.
Congratulations! You have completed the setup for your tower computer.

Setting Up Your Computer (Desktop Orientation)

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located
in the Product Information Guide.
You must complete all steps to properly set up your computer.
Connect the keyboard and the mouse.
1
NOTICE: Do not connect a
modem cable to the network adapter. Voltage from telephone communications can damage the network adapter.
14 Quick Reference Guide
Connect the modem
2
or the network cable.
NOTE: If your computer
has a network card installed, connect the network cable to the card.
Connect the monitor.
3
Depending on your graphics card, you can connect your monitor in various ways.
NOTE: You may need to use the
provided adapter or cable to connect your monitor to the computer.
Quick Reference Guide 15
For single- and dual-monitor capable cards with a single connector
VGA Adapter
VGA
Use the VGA adapter when you have a single monitor graphics card and you want to connect your computer to a VGA monitor.
Dual VGA Y Cable Adapter
Dual DVI Y Cable Adapter
VGA
VGA
Use the appropriate Y cable when your graphics card has a single connector and you want to connect your computer to one or two VGA monitors.
Use the appropriate Y cable when your graphics card has a single connector and you want to connect your computer to one or two DVI monitors.
DVI
DVI
The dual-monitor cable is color coded; the blue connector is for the primary monitor, and the black connector is for the secondary monitor. To enable dual-monitor support, both monitors must be attached to the computer when it starts.
16 Quick Reference Guide
For dual-monitor capable cards with one DVI connector and one VGA connector
One DVI Connector and One VGA Connector
DVI
VGA
Two VGA Connectors With One VGA Adapter
VGA
VGA
Use the appropriate connector(s) when you want to connect your computer to one or two monitors.
For dual-monitor capable cards with two DVI connectors
Two DVI Connectors
Two DVI Connectors With One VGA Adapter
DVI
DVI
Use the DVI connector(s) to connect your computer to one or two DVI monitors.
Use the VGA adapter to connect a VGA monitor to one of the DVI connectors on your computer.
DVI
Use the VGA adapter when you want to connect your computer to two VGA monitors.
Two DVI Connectors With Two VGA Adapters
VGA
VGA
VGA
Use two VGA adapters to connect two VGA monitors to the DVI connectors on your computer.
Quick Reference Guide 17
Connect the speakers.
4
NOTE: If your computer has a sound card installed, connect the speakers to the card.
Connect the power cables and turn on the computer
5
and monitor.
Your desktop computer has an optional front IEEE 1394 connector. This connector is only available if you purchased an IEEE 1394 card. To purchase a card, contact Dell. For instructions on contacting Dell and for more information on the IEEE 1394 card, see your
Guide
.
User’s
Install additional software or devices.
6
Before you install any devices or software that did not come with your computer, read the documentation that came with the software or device or contact the vendor to verify that the software or device is compatible with your computer and operating system.
Congratulations! You have completed the setup for your desktop computer.
18 Quick Reference Guide

About Your Computer

1

Front View (Tower Orientation)

14
13
12
2
3
4
5
11
10
9
1 CD- or DVD-drive
activity light
2 CD- or DVD-drive
eject button
3 floppy-drive activity
light
4 floppy-drive eject button Press this button to eject a floppy disk from the optional floppy drive.
5 hard-drive activity light The hard-drive activity light is on when the computer reads data from or writes
6 IEEE 1394 connector
(optional)
The CD/DVD-drive activity light is on when the computer reads data from or writes data to the CD/DVD drive. Wait until this light turns off before you remove the CD or DVD from the drive.
Press this button o eject a disc from the CD or DVD drive.
The floppy-drive activity light is on when the computer reads data from or writes data to the optional floppy drive. Wait until this light turns off before you remove the floppy from the drive.
data to the hard drive. The light might also be on when a device such as your CD player is operating.
Use the optional IEEE 1394 connectors for high-speed data devices such as digital video cameras and external storage devices.
6
7
8
Quick Reference Guide 19
7 USB 2.0 connectors (2) Use the USB connectors on the front of your computer for devices that you
connect occasionally, such as flash memory keys or cameras, or for bootable USB devices (see to a USB device).
It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
8 Dell badge rotation
notch
9 power button Press this button to turn the computer on.
To rotate the badge, place your fingers around the outside of the badge, press in, and turn the badge. You can also rotate the badge by using the slot provided near the bottom of the badge.
"System Setup" in your
User’s Guide for more information on booting
NOTE: The power button can also be used to wake the system or to place it into
a power-saving mode. See "Power Management" in the User’s Guide for more information.
NOTICE: To avoid losing data, do not use the power button to turn the
computer off. Instead, perform an operating system shutdown.
10 power light The power light illuminates and blinks or remains solid to indicate different states:
• No light — The computer is turned off.
• Steady green — The computer is in a normal operating state.
• Blinking green — The computer is in a power-saving mode.
• Blinking or solid amber — See "Power Problems" in the
To exit from a power-saving mode, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. For more information about sleep modes and exiting from a power-saving mode, see "Power Management" in the User’s Guide.
See "Diagnostic Lights" on page 37 for a description of light codes that can help you troubleshoot problems with your computer.
11 microphone connector Use the microphone connector to attach a personal computer microphone for
voice or musical input into a sound or telephony program.
12 headphone connector Use the headphone connector to attach headphones and most kinds of speakers.
13 diagnostic lights (4) Use the lights to help you troubleshoot a computer problem based on the
diagnostic code. For more information, see "Diagnostic Lights" on page 37.
14 network link light The network light is on when the computer sends or receives data over a network
connection. The light might also be on when a network device is establishing a network connection.
User’s Guide
.
20 Quick Reference Guide

Back View (Tower Orientation)

1
2
3
4
1 power connector Insert the power cable into this connector.
2 voltage selection switch See the safety instructions located in the Product Information Guide for more
information.
3 back-panel connectors Plug serial, USB, and other devices into the appropriate connector.
4 card slots Access connectors for any installed PCI or PCI Express cards.
Quick Reference Guide 21

Front View (Desktop Orientation)

1 2 7
3
5 6 8
4
910111213
1 floppy-drive activity
light
2 CD- or DVD-drive
activity light
3 floppy-drive eject button Press this button to eject a floppy disk from the optional floppy drive.
4 CD- or DVD-drive
eject button
5 hard-drive activity light The hard-drive activity light is on when the computer reads data from or writes
6 IEEE 1394 connector
(optional)
The floppy-drive activity light is on when the computer reads data from or writes data to the optional floppy drive. Wait until this light turns off before you remove the floppy from the drive.
The CD/DVD-drive activity light is on when the computer reads data from or writes data to the CD/DVD drive. Wait until this light turns off before you remove the CD or DVD from the drive.
Press this button to eject a disc from the CD or DVD drive.
data to the hard drive. The light might also be on when a device such as your CD player is operating.
Use the optional IEEE 1394 connectors for high-speed data devices such as digital video cameras and external storage devices.
22 Quick Reference Guide
7 USB 2.0 connectors (2) Use the USB connectors on the front of the computer for devices that you connect
occasionally, such as flash memory keys or cameras, or for bootable USB devices (see
"System Setup" in your
device).
It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards.
8 power button Press this button to turn the computer on.
User’s Guide for more information on booting to a USB
NOTE: The power button can also be used to wake the system or to place it into a
power-saving mode. See "Power Management" in the User’s Guide" for more information.
NOTICE: To avoid losing data, do not use the power button to turn the
computer off. Instead, perform an operating system shutdown.
9 power light The power light illuminates and blinks or remains solid to indicate different states:
• No light — The computer is turned off.
• Steady green — The computer is in a normal operating state.
• Blinking green — The computer is in a power-saving mode.
• Blinking or solid amber — See "Power Management" in the User’s Guide."
To exit from a power-saving mode, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. For more information about sleep modes and exiting from a power-saving mode, see "Power Management" in the User’s Guide for more information. See "Diagnostic Lights" on page 37 for a description of light codes that can help you troubleshoot problems with your computer.
10 diagnostic lights (4) Use the lights to help you troubleshoot a computer problem based on the
diagnostic code. For more information See "Diagnostic Lights" on page 37.
11 microphone connector Use the microphone connector to attach a personal computer microphone
for voice or musical input into a sound or telephony program.
12 headphone connector Use the headphone connector to attach headphones and most kinds of speakers.
13 network link light The network light is on when the computer sends or receives data over a network
connection. The light might also be on when a network device is establishing a network connection.
Quick Reference Guide 23

Back View (Desktop Orientation)

32
1
4
1 card slots Access connectors for any installed PCI or PCI Express cards.
2 power connector Insert the power cable into this connector.
3 voltage selection switch See the safety instructions located in the Product Information Guide for more
information.
4 back-panel connectors Plug serial, USB, and other devices into the appropriate connector.
24 Quick Reference Guide

Back-Panel Connectors

1
2 345
6
7
891011
1 mouse connector Plug a standard mouse into the green mouse connector. Turn off the computer
and any attached devices before you connect a mouse to the computer. If you have a USB mouse, plug it into a USB connector.
If your computer is running the Microsoft the necessary mouse drivers have been installed on your hard drive.
2 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have
a USB printer, plug it into a USB connector.
NOTE: The integrated parallel connector is automatically disabled if the computer
detects an installed card containing a parallel connector configured to the same address. For more information, see "System Setup Options" in the User’s Guide.
3 link integrity light
• Green — A good connection exists between a 10-Mbps network and the computer.
• Orange — A good connection exists between a 100-Mbps network and the computer.
• Yellow — A good connection exists between a 1000-Mbps (or 1-Gbps) network and the computer.
• Off — The computer is not detecting a physical connection to the network.
®
Windows XP operating system,
Quick Reference Guide 25
4 network adapter
connector
To attach your computer to a network or broadband device, connect one end of a network cable to either a network jack or your network or broadband device. Connect the other end of the network cable to the network adapter connector on your computer. A click indicates that the network cable has been securely attached.
NOTE: Do not plug a telephone cable into the network connector.
On computers with an additional network connector card, use the connectors on the card and on the back of the computer when setting up multiple network connections (such as a separate intra- and extranet).
It is recommended that you use Category 5 wiring and connectors for your network. If you must use Category 3 wiring, force the network speed to 10 Mbps to ensure reliable operation.
5 network activity light Flashes a yellow light when the computer is transmitting or receiving network
data. A high volume of network traffic may make this light appear to be in a steady "on" state.
6 line-in connector Use the blue line-in connector to attach a record/playback device such as a cassette
player, CD player, or VCR.
On computers with a sound card, use the connector on the card.
7 line-out connector Use the green line-out connector to attach headphones and most speakers
with integrated amplifiers.
On computers with a sound card, use the connector on the card.
8 USB 2.0 connectors (2) Use the back USB connectors for devices that typically remain connected,
such as printers and keyboards.
It is recommended that you use the front USB connectors for devices that you connect occasionally, such as flash memory keys or cameras., or for bootable USB devices.
9 USB 2.0 connectors (3) Use the back USB connectors for devices that typically remain connected,
such as printers and keyboards.
It is recommended that you use the front USB connectors for devices that you connect occasionally, such as flash memory keys or cameras, or for bootable USB devices.
10 serial connector Connect a serial device, such as a handheld device, to the serial port. The default
designations are COM1 for serial connector 1 and COM2 for the optional serial connector 2.
For more information, see "System Setup Options" in the User’s Guide
11 keyboard connector If you have a standard keyboard, plug it into the purple keyboard connector.
If you have a USB keyboard, plug it into a USB connector.
.
26 Quick Reference Guide

Inside View

1
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located
in the Product Information Guide.
2
12
11
10
9
8
7
6
4
5
3
1 power supply 7 processor fan
2 system board 8 lower 3.5 inch drive bay
3 secondary hard drive bay 9 upper 3.5 inch drive bay
4 processor airflow shroud 10 lower 5.25 inch drive bay
5 primary hard drive bay 11 upper 5.25 inch drive bay
6 card fan 12 drive cage
Quick Reference Guide 27
Cable Colors
1
2
34 5
Device Color
Hard drive blue cable
Floppy drive black pull tab
CD/DVD drive orange pull tab

System Board Components

6
24
23
22
21
20
19
18
17
1516
7
8
9
10
11
12
13
14
28 Quick Reference Guide
1 power connector (12VPOWER) 13 PCI-Express x16 up to 150w card slot
2 memory module connectors 14 PCI-Express x8 card slot (wired as x4)
3 battery socket (BATTERY) 15 PCI card slots (1-3)
4 memory fan connector (FAN_MEM) 16 external LED connector (AUX LED)
5 front panel connector 17 floppy drive (FLOPPY)
6 main power connector (POWER) 18 serial connector (SERIAL2)
7 IDE drive connector (IDE) 19 card cage fan (FAN CARD CAGE)
8 SATA connectors (SATA-1, SATA-3,
SATA-0, SATA-2)
9 RTC reset jumper (RTCRST) 21 processor fan connector (FAN_CPU)
10 Flexbay connector (FLEXBAY) 22 processor fan thermal sensor connector (THRM)
11 chassis intrusion header 23 password jumper (PSWD)
12 PCI-Express x1 card slot 24 processor connector (CPU)
20 internal speaker connector (INT_SPKR)

Locating Your User’s Guide

Your
User’s Guide
Technical specifications
Information for changing the orientation of your computer from a desktop to a tower
Front and back views of your computer, including all of the available connectors
Inside views of your computer, including a detailed graphic of the system board and the connectors
Instructions for cleaning your computer
Information on software features, such as LegacySelect Technology control, using a password, and system setup options
Tips and information for using the Microsoft Windows XP operating system
Instructions for removing and installing parts, including memory, cards, drives, the microprocessor, and the battery
Information for troubleshooting various computer problems
Instructions for using the Dell Diagnostics and reinstalling drivers
Information on how to contact Dell
You can access the
contains additional information about your computer such as:
User’s Guide
from your hard drive or the Dell Support website at
support.dell.com
.
Quick Reference Guide 29
To access the User’s Guide from your hard drive:
Click the
To access your User’s Guide from the Dell Support website:
1
2
3
Start
button and click
Go to
support.dell.com
Help and Support
.
.
Follow the prompts on the website that ask you for information specific to your computer.
At the Dell Support website home page, click
Reference
, click
User’s Guides
, click
Systems
and then select your computer.

Removing the Computer Cover

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located
in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before
removing the cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface,
such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.
NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your
computer.
1
Shut down the operating system:
a
Save and close any open files, exit any open programs, click the
Off Computer
b
In the
Turn off computer
.
window, click
Tur n o ff
.
The computer turns off after the operating system shutdown process finishes.
Start
button, and then click
,
Tu r n
2
Ensure that the computer and any attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your operating system, turn them off now.
3
If you have installed a security cable, remove it from the security cable slot.
NOTICE: Ensure that you are working on a level, protected surface to avoid scratching either the computer or the
surface on which it is resting.
4
Lay your computer on a flat surface with the computer cover facing up.
5
Pull back the cover latch release.
30 Quick Reference Guide
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