Dell Precision™ Workstation 470
and Workstation 670
Quick Reference Guide
Models WHM and WHL
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m
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" in the User’s Guide.
If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows®operating
systems are not applicable.
The Quick Reference Guide, Drivers and Utilities CD, and operating system media are optional and may not ship
with all computers.
____________________
Information in this document is subject to change without notice.
© 2004 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, the DELL logo, and Dell Precision are trademarks of Dell Inc.; Microsoft and Windows are registered
trademarks of Microsoft Corporation; Intel and Pentium are registered trademarks of Intel 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.
Models WHM and WHL
October 2004
P/N X3152 Rev. A01
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m
Contents
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5
Setting Up Your Dell Precision 670 Computer
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9
Setting Up Your Dell Precision 470 Computer
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15
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29
Finding Information
Opening the Computer Cover .
Caring for Your Computer.
Solving Problems
Resolving Software and Hardware Incompatibilities
Microsoft Windows® XP . . . . . . . . . . . . .
Windows 2000 . . . . . . . . . . . . . . . . . .
Using System Restore in Windows XP . . . . . . .
Using Last Known Good Configuration . . . . . . .
When to Use the Dell Diagnostics . . . . . . . . .
Before You Start Testing . . . . . . . . . . . . . .
Running the Dell Diagnostics . . . . . . . . . . .
System Lights . . . . . . . . . . . . . . . . . . .
Beep Codes
Error Messages
Diagnostic Lights
Memory Overview .
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41
Frequently Asked Questions
Index
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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
•
•
•
•
•
Drivers and Utilities CD (also known as ResourceCD)
A diagnostic program for my computer
Drivers for my computer
My computer documentation
My device documentation
Desktop System Software (DSS)
Documentation and drivers are already installed on your
computer. You can use the CD to reinstall drivers, run the
Dell Diagnostics (see page 26), or access your
documentation.
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: 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.
• System board connectors
• Location of system board components
System Information Label
Located on the inside cover of your
computer.
Quick Reference Guide
5
www.dell.com | support.dell.com
What Are You Looking For?
Find It Here
•
•
•
•
•
•
Warranty information
Terms and Conditions (U.S. only)
Safety instructions
Regulatory information
Ergonomics information
End User License Agreement
Dell™ Product Information Guide
•
•
•
•
How to remove and replace parts
Specifications
How to configure system settings
How to troubleshoot and solve problems
Dell Precision™ Mobile Workstation User’s Guide
Microsoft® Windows® XP Help and Support Center
1 Click the Start button and click Help and Support.
2 Click User’s and system guides and click User’s guides.
The User’s Guide is also available on the optional Drivers
and Utilities CD.
• Service Tag and Express Service Code
• Microsoft Windows License Label
Service Tag and Microsoft Windows License
These labels are located on your computer.
• Use the Service Tag to
identify your
computer when you
use support.dell.com
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 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.
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.
• How to use Windows XP
• Documentation for my computer
• Documentation for devices (such as a modem)
Windows Help and Support Center
1 Click the Start button and click Help and Support.
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.
Quick Reference Guide
7
www.dell.com | support.dell.com
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 Dell Precision User’s
Guide for instructions.
After you reinstall your
operating system, use the
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.
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 the Red Hat® Linux operating system
• E-mail discussions with other users of Dell Precision™
computers and Linux
• Additional information regarding Linux and my Dell
Precision computer
8
Quick Reference Guide
Dell Supported Linux Sites
• http://linux.dell.com
• http://lists.us.dell.com/mailman/listinfo/linuxprecision
• http://docs.us.dell.com/docs/software/oslinux/
Setting Up Your Dell Precision 670 Computer
1
PS/2
CAUTION: Before you begin any of
Connect the keyboard and the mouse.
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.
or
USB
PS/2
or
USB
2
Connect the modem or the network cable.
NOTE: If your computer has a
network card installed, connect the
network cable to the card.
NOTE: A modem is not included as a
standard feature with Dell Precision
workstations, but you can order a
modem separately.
Network
NOTICE: Do not connect a modem
cable to the network adapter. Voltage
from telephone communications can
damage the network adapter.
Modem
Quick Reference Guide
9
www.dell.com | support.dell.com
3
Connect the monitor.
Depending on your graphics card, you
can connect your monitor in
various ways.
NOTICE: 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
VGA Adapter
VGA
Use the VGA adapter when you have a single monitor
graphics card and you want to connect a VGA monitor.
Dual VGA Y Cable Adapter
VGA
Dual DVI Y Cable Adapter
DVI
VGA
DVI
Use the appropriate Y cable when your graphics card has a Use the appropriate Y cable when your graphics card has a
single connector and you want to connect one or two VGA single connector and you want to connect one or two DVI
monitors.
monitors.
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
www.dell.com | support.dell.com
For dual-monitor capable cards with one DVI and one VGA connector
Single DVI/Single VGA
Dual VGA With VGA Adapter
DVI
VGA
VGA
VGA
Use the appropriate connector(s) when you connect one
or two monitors.
Use the VGA adapter when you want to connect two VGA
monitors.
For dual-monitor capable cards with two DVI connectors
Dual DVI
Dual DVI With One VGA Adapter
Dual DVI With Two VGA Adapters
DVI
DVI
DVI
VGA
VGA
Use the DVI connectors to connect
your computer to one or two
DVI monitors.
12
Quick Reference Guide
Use the VGA adapter to connect a
VGA monitor to one of the
DVI connectors on your computer.
VGA
Use two VGA adapters to connect two
VGA monitors to the DVI connectors
on your computer.
4
NOTE: If your computer
Connect the speakers.
has an audio card
installed, connect the
speakers to the card.
LINE OUT
5
Connect the power cables and turn on the computer and monitor.
Quick Reference Guide
13
www.dell.com | support.dell.com
6
Install additional software or devices.
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 Dell Precision 670 computer.
To access the User’s Guide from your hard drive:
Click the Start button and click Help and Support.
To access your User’s Guide from the Dell Support website:
14
1
Go to support.dell.com.
2
Follow the prompts on the website that ask you for information specific to your computer.
3
At the Dell Support website home page, click the User Guides link under Product Support,
click Systems, and then select your Dell Precision computer.
Quick Reference Guide
Setting Up Your Dell Precision 470 Computer
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.
1
Connect the keyboard and the mouse.
PS/2
or USB
USB
PS/2
or
2
Connect the modem or the network cable.
NOTE: If your computer has a
network card installed,
connect the network cable to
the card.
network
modem
NOTICE: Do not connect a
modem cable to the network
adapter. Voltage from
telephone communications can
damage the network adapter.
NOTE: A modem is not
included as a standard feature
with Dell Precision
workstations, but you can
order a modem separately.
Quick Reference Guide
15
www.dell.com | support.dell.com
3
Connect the monitor.
Depending on your
graphics card, you can
connect your monitor in
various ways.
For information on the
different options, see
page 11 and page 12.
NOTICE: You may need
to use the provided
adapter or cable to
connect your monitor
to the computer.
16
Quick Reference Guide
4
Connect the speakers.
LINE OUT
NOTE: If your computer has an audio card installed, connect the speakers to the card.
5
Connect the power cables and turn on the computer and monitor.
6
Install additional software or devices.
Quick Reference Guide
17
www.dell.com | support.dell.com
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 Dell Precision 470 computer.
To access the User’s Guide from your hard drive:
Click the Start button and click Help and Support.
To access your User’s Guide from the Dell Support website:
1
Go to support.dell.com.
2
Follow the prompts on the website that ask you for information specific to your computer.
3
At the Dell Support website home page, click the User Guides link under Product Support,
click Systems, and then select your Dell Precision computer.
Opening the Computer Cover
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide.
1
Shut down the computer through the Start menu.
2
Ensure that your computer and attached devices are turned off. If your computer and
attached devices did not automatically turn off when you shut down your computer, turn
them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it
from the network wall jack.
3
Disconnect any telephone or telecommunication lines from the computer.
4
Disconnect your computer and all attached devices from electrical outlets, and then press the
power button to ground the system board.
5
If you have installed a padlock through the padlock ring on the back panel, remove
the padlock.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet
before opening the cover.
6
Lay the computer on its side as shown in the following illustrations.
NOTICE: Ensure that sufficient space exists to support the open cover—at least 30 cm (1 ft) of
desk top space.
18
Quick Reference Guide
7
8
Open the computer cover:
a
Slide the cover release latch toward the top of the computer.
b
Raise the cover, and pivot it toward the front of the computer.
Ground yourself by touching an unpainted metal surface on the computer, such as the metal
at the back of computer, before touching anything inside your computer.
While you work, periodically touch any unpainted metal surface on the computer to dissipate
any static electricity that could harm internal components.
Dell Precision 670 Computer
cover release latch
security cable slot
padlock ring
Quick Reference Guide
19
www.dell.com | support.dell.com
Inside the Dell Precision 670 Computer
floppy drive (optional)
CD/DVD drive(s)
hard drive(s)
chassis intrusion switch
system board
processor
airflow shroud
power supply
20
Quick Reference Guide
Dell Precision 470 Computer
cover release latch
security cable slot
padlock ring
Inside the Dell Precision 470 Computer
CD/DVD drive(s)
floppy drive (optional)
hard drive(s)
chassis intrusion switch
system board
processor
airflow shroud
power supply
Quick Reference Guide
21
www.dell.com | support.dell.com
Caring for Your Computer
To help maintain your computer, follow these suggestions:
•
To avoid losing or corrupting data, never turn off your computer when the hard drive light is on.
•
Schedule regular virus scans using anti-virus software.
•
Manage hard drive space by periodically deleting unnecessary files and defragmenting the
drive.
•
Back up files on a regular basis.
•
Periodically clean your monitor screen, mouse, and keyboard (see your User’s Guide for
more information).
Solving Problems
Follow these tips when troubleshooting your computer:
•
If you added or removed a computer part before the problem started, review the installation
procedures and ensure that the part is correctly installed.
•
If a peripheral device does not work, ensure that the device is properly connected.
•
If an error message appears on the screen, write down the exact message. This message may
help technical support diagnose and fix the problem(s).
•
If an error message occurs in a program, consult the program’s documentation.
•
If the recommended action in the troubleshooting section is to see a section in your
User’s Guide, go to support.dell.com (on another computer if necessary) to access
your User’s Guide.
Resolving Software and Hardware Incompatibilities
If a device is either not detected during the operating system setup or is detected but incorrectly
configured, you can use the Hardware Troubleshooter to resolve the incompatibility.
Microsoft Windows® XP
To resolve incompatibilities using the Hardware Troubleshooter:
22
1
Click the Start button and click Help and Support.
2
Type hardware troubleshooter in the Search field and click the arrow to start the search.
3
Click Hardware Troubleshooter in the Search Results list.
4
In the Hardware Troubleshooter list, click I need to resolve a hardware conflict on my
computer, and click Next.
Quick Reference Guide
To resolve incompatibilities using the Hardware Troubleshooter:
1
Click the Start button and click Help.
2
Click Troubleshooting and Maintenance on the Contents tab, click Windows XP
troubleshooters, and then click Hardware.
3
In the Hardware Troubleshooter list, click I need to resolve a hardware conflict on my
computer and click Next.
Windows 2000
To resolve incompatibilities using Device Manager:
1
Click the Start button, point to Settings, and then click Control Panel.
2
In the Control Panel window, double-click System.
3
Click the Hardware tab.
4
Click Device Manager.
5
Click View and click Resources by connection.
6
Double-click Interrupt request (IRQ).
Incorrectly configured devices are indicated by a yellow exclamation point (!) or a red X if the
device has been disabled.
7
Double-click any device marked with an exclamation point to display the Properties window.
The Device status area in the Properties window reports the cards or devices that need to
be reconfigured.
8
Reconfigure the devices or remove the devices from the Device Manager. See the
documentation that came with the device for information on configuring the device.
To resolve incompatibilities using the Hardware Troubleshooter:
1
Click the Start button and click Help.
2
Click Troubleshooting and Maintenance on the Contents tab, click Windows 2000
troubleshooters, and then click Hardware.
3
In the Hardware Troubleshooter list, click I need to resolve a hardware conflict on my
computer and click Next.
Using System Restore in Windows XP
The Microsoft® Windows® XP operating system provides System Restore to allow you to return
your computer to an earlier operating state (without affecting data files) if changes to the
hardware, software, or other system settings have left the computer in an undesirable
operating state.
NOTICE: Make regular backups of your data files. System Restore does not monitor your data files or
recover them.
Quick Reference Guide
23
www.dell.com | support.dell.com
Creating a Restore Point
1
Click the Start button and click Help and Support.
2
Click System Restore.
3
Follow the instructions on the screen.
Restoring the Computer to an Earlier Operating State
NOTICE: Before you restore the computer to an earlier operating state, save and close all open files and
close all open programs. Do not alter, open, or delete any files or programs until the system restoration
is complete.
1
Click the Start button, point to All Programs→ Accessories→ System Tools, and then click
System Restore.
2
Ensure that Restore my computer to an earlier time is selected, and click Next.
3
Click a calendar date to which you want to restore your computer.
The Select a Restore Point screen provides a calendar that allows you to see and select
restore points. All calendar dates with available restore points appear in bold.
4
Select a restore point and click Next.
If a calendar date has only one restore point, then that restore point is automatically selected.
If two or more restore points are available, click the restore point that you prefer.
5
Click Next.
The Restoration Complete screen appears after System Restore finishes collecting data, and
then the computer automatically restarts.
6
After the computer restarts, click OK.
To change the restore point, you can either repeat the steps using a different restore point, or
you can undo the restoration.
Using Last Known Good Configuration
1
Restart your computer and press <F8> when the message Please select the
operating system to start appears.
2
24
Highlight Last Known Good Setting, press <Enter>, press <l>, and then select your
operating system when prompted.
Quick Reference Guide
Other Options to Help Resolve Additional Device or Software Conflicts
NOTICE: The following processes erase all of the information on your hard drive.
•
Reinstall your operating system using the operating system CD.
NOTE: The operating system CD is optional and may not ship with every computer.
During the operating system reinstallation, you can select to delete the existing partitions and
reformat your hard drive.
•
Reinstall all drivers, beginning with the chipset, using the optional Drivers and Utilities CD.
When to Use the Dell Diagnostics
If you experience a problem with your computer, run the Dell Diagnostics before you contact Dell
for technical assistance. The test results provide important information for Dell's service and
support personnel.
NOTICE: Only use the Dell Diagnostics to test your Dell™ computer. Using this program with other
computers can cause incorrect computer responses or result in error messages.
The Dell Diagnostics allow you to:
•
Perform quick checks or extensive tests on one or all devices.
•
Choose how many times a test is run.
•
Display or print test results or save them in a file.
•
Suspend testing if an error is detected or terminate testing if a certain number of errors occur.
•
Access online Help screens that describe the tests and how to run them.
•
Read status messages that tell you whether tests completed successfully.
•
Receive error messages if problems are detected.
Before You Start Testing
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide.
•
Turn on your printer if one is attached.
•
Enter system setup, review your computer’s configuration information, and then enable all of
your computer’s components and devices, such as connectors.
Quick Reference Guide
25
www.dell.com | support.dell.com
Running the Dell Diagnostics
It is recommended that you print these procedures before you begin.
1
Open the Dell Diagnostics on your hard drive or from the Drivers and Utilities CD.
From your hard drive:
a
Shut down and restart the computer.
b
When F2 = Setup appears in the upper-right corner of the screen, press
<Ctrl><Alt><F10>.
If you wait too long and the Microsoft® Windows® logo appears, continue to wait until
you see the Windows desktop. Then shut down your computer and try again. After the
system boots to the Dell Diagnostics, go to step 2.
From the Drivers and Utilities CD:
a
Shut down and restart the computer.
b
When F2 = Setup appears in the upper-right corner of the screen, press <F12>.
If you wait too long and the Microsoft Windows logo appears, continue to wait until you
see the Windows desktop. Then shut down your computer and try again.
NOTE: This feature changes the boot sequence for one time only. On the next start-up, the computer
boots according to the devices specified in system setup.
The Boot Device Menu appears.
c
Insert the Drivers and Utilities CD.
d
Change the Boot Sequence to use the IDE CD-ROM device as the first device in the
boot sequence.
The Dell Diagnostics Menu appears.
e
2
26
Select Dell 32-bit Diagnostics from the numbered list. If multiple versions are
listed, select the version appropriate for your computer.
When the Dell Diagnostics main menu appears, select the type of test you want to perform.
Quick Reference Guide
System Lights
These lights on the front of the computer can indicate a computer problem.
Power Light
Hard-Drive Light
Cause
Corrective Action
Solid green
N/A
Power is on, and the computer is
operating normally.
No corrective action is required.
Blinking green
Blank
The computer is in the suspended
state (Windows XP).
Press the power button, move the
mouse, or press a key on the keyboard
to wake the computer. See "Power
Management" in the User’s Guide for
more information.
Blinks green
several times and
then turns off
N/A
A configuration error exists.
Check the diagnostic lights to see if
the specific problem is identified. See
the User’s Guide for more information.
Solid yellow
N/A
The Dell Diagnostics is running a
test, or a device on the system
board may be faulty or
incorrectly installed.
If the Dell Diagnostics is running,
allow the testing to complete.
Check the diagnostic lights to see if
the specific problem is identified.
If the computer does not boot, contact
Dell for technical assistance.
Blinking yellow
Blank
A power supply or system board
failure has occurred.
Check the diagnostic lights to see if
the specific problem is identified. See
"Power Problems" in the User’s Guide.
Blinking yellow
Solid green
A system board or VRM failure
has occurred.
Check the diagnostic lights to see if
the specific problem is identified.
Solid green and a
beep code
during POST
N/A
A problem was detected while the
BIOS was executing.
See "Beep Codes" on page 28 for
instructions on diagnosing the beep
code. Also, check the diagnostic lights
to see if the specific problem
is identified.
Solid green power
light and no beep
code and no video
during POST
N/A
The monitor or the graphics card
may be faulty or incorrectly
installed.
Check the diagnostic lights to see if
the specific problem is identified. Also,
see "Video Problems" in the
User’s Guide.
Solid green power
light and no beep
code but the
computer locks
up during POST
N/A
An integrated system board device
may be faulty.
Check the diagnostic lights to see if
the specific problem is identified. If
the problem is not identified, contact
Dell for technical assistance.
Quick Reference Guide
27
www.dell.com | support.dell.com
Beep Codes
Your computer might emit a series of beeps during start-up if the monitor cannot display errors or
problems. This series of beeps, called a beep code, identifies a problem. One possible beep code
(code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells
you that the computer encountered a memory problem.
If your computer beeps during start-up:
28
1
Write down the beep code on the Diagnostic Checklist (see your User’s Guide).
2
Run the Dell Diagnostics to identify a more serious cause.
3
Contact Dell for technical assistance.
Code
Cause
Code
Cause
1-1-2
Microprocessor register failure
3-3-4
Video Memory Test failure
1-1-3
NVRAM read/write failure
3-4-1
Screen initialization failure
1-1-4
ROM BIOS checksum failure
3-4-2
Screen retrace failure
1-2-1
Programmable interval timer failure
3-4-3
Search for video ROM failure
1-2-2
DMA initialization failure
4-2-1
No timer tick
1-2-3
DMA page register read/write failure
4-2-2
Shutdown failure
1-3
Video Memory Test failure
4-2-3
Gate A20 failure
1-3-1
through
2-4-4
Memory not being properly identified
or used
4-2-4
Unexpected interrupt in protected
mode
3-1-1
Slave DMA register failure
4-3-1
Memory failure above address
0FFFFh
3-1-2
Master DMA register failure
4-3-3
Timer-chip counter 2 failure
3-1-3
Master interrupt mask register failure
4-3-4
Time-of-day clock stopped
3-1-4
Slave interrupt mask register failure
4-4-1
Serial or parallel port test failure
3-2-2
Interrupt vector loading failure
4-4-2
Failure to decompress code to
shadowed memory
3-2-4
Keyboard Controller Test failure
4-4-3
Math-coprocessor test failure
3-3-1
NVRAM power loss
4-4-4
Cache test failure
3-3-2
Invalid NVRAM configuration
4-3-4
Time-of-day clock stopped
Quick Reference Guide
Error Messages
NOTE: If the message is not listed, see the documentation for either the operating system or the program
that was running when the message appeared.
If an error occurs during start-up, a message may be displayed on the monitor identifying the
problem. See "Error Messages" in your User’s Guide for suggestions on resolving any problems.
Diagnostic Lights
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions
located in the Product Information Guide.
To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D" on
the front panel. The lights can be yellow, green, or off. When the computer starts normally, the
lights flash. After the computer starts, all four lights display solid green. If the computer
malfunctions, the color and sequence of the lights identify the problem.
Quick Reference Guide
29
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Diagnostic Light Codes Before POST
Light Pattern
off
off
A B C D
Problem Description
Suggested Resolution
No electrical power is
supplied to the computer.
Connect the computer to an electrical outlet. Ensure
that the front-panel power light is on. If the power light
is off, ensure that the computer is connected to a
working electrical outlet and then press the
power button.
off
off
If the problem is still not resolved, contact Dell for
technical assistance.
yellow
off
A B C D
off
The computer is in a normal
off condition; the computer
is connected to an
electrical outlet.
off
Press the power button to turn the computer on.
If the computer does not turn on, ensure that the frontpanel power light is on. If the power light is off, ensure
that the computer is connected to a working electrical
outlet and then press the power button.
If the problem is still not resolved, contact Dell for
technical assistance.
yellow
yellow
A B C D
The computer is in a reduced Use one of the appropriate methods to "wake up" the
power or "sleep" state.
computer. See "Advanced Features" in the User’s Guide.
If the problem is not resolved and you are trying to wake
the computer with a USB mouse or keyboard, substitute
the mouse or keyboard with a working PS/2 mouse or
keyboard and then try to wake the computer.
off
off
yellow
The BIOS is not executing.
yellow
A B C D
If the problem is still not resolved, contact Dell for
technical assistance.
yellow
off
off
yellow
A B C D
off
A possible power supply or
power cable failure
has occurred.
Perform the procedure in "Power Problems" in the
User’s Guide.
A possible system board
failure has occurred.
Contact Dell for technical assistance.
off
off
off
A B C D
yellow
off
= yellow
= green
= off
30
Ensure that the processor is seated correctly and restart
the computer.
Quick Reference Guide
If the problem is still not resolved, contact Dell for
technical assistance.
Light Pattern
yellow
off
A B C D
Problem Description
Suggested Resolution
A processor and/or VRM
mismatch exists.
Perform the procedure in "Processor Problems" in the
User’s Guide.
A possible VRM 0 failure
has occurred.
Contact Dell for technical assistance.
A possible VRM 1 failure
has occurred.
Perform the procedure in "Processor Problems" in the
User’s Guide.
yellow
off
green
yellow
A B C D
yellow
off
yellow
green
A B C D
yellow
green
green
green
A B C D
A possible VRM 0 and VRM 1 Contact Dell for technical assistance.
failure has occurred.
yellow
off
= yellow
= green
= off
Diagnostic Light Codes During POST
Light Pattern
Problem Description
yellow
yellow
A B C D
Suggested Resolution
A possible processor failure has occurred. Reinstall the processor and restart
the computer.
green
yellow
= yellow
= green
= off
Quick Reference Guide
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Light Pattern
Problem Description
yellow
yellow
A B C D
green
green
= yellow
= green
= off
32
Quick Reference Guide
Memory modules are detected, but a
memory failure has occurred.
Suggested Resolution
1 Reseat the memory modules to ensure
that your computer is successfully
communicating with the memory.
2 Restart the computer.
3 If the problem still exists, remove all
the memory modules and install
one memory module in
connector DIMM_1.
4 Restart the computer.
The following message appears:
Alert! Operating in Debug
Mode. Please Populate
Memory in Pairs for
Normal Operation.
5 Press <F1> to boot to the
operating system.
6 Run the Dell Diagnostics
(see page 26).
7 If the memory module passes, shut
down the computer, remove the
memory module, and then repeat the
process with the remaining memory
modules until a memory error occurs
during start-up or diagnostic testing.
If the first memory module tested is
defective, repeat the process with the
remaining modules to ensure that the
remaining modules are not defective.
8 When the defective memory module
is identified, contact Dell for
a replacement.
NOTE: If necessary, the computer can
operate in debug mode until new memory
modules are installed.
Light Pattern
Problem Description
yellow
green
A B C D
A possible expansion card failure
has occurred.
yellow
yellow
yellow
green
A B C D
A B C D
removing a card (not the graphics
card) and then restarting
the computer.
2 If the problem persists, reinstall the
card that you removed, remove a
different card, and then restart
the computer.
3 Repeat this process for each card. If
the computer starts normally,
troubleshoot the last card removed
from the computer for resource
conflicts (see your User’s Guide).
4 If the problem persists, contact Dell.
• If the computer has a graphics card,
remove the card, reinstall it, and then
restart the computer.
• If the problem still exists, install a
graphics card that you know works and
restart the computer.
• If the problem persists or the
computer has integrated graphics,
contact Dell.
A possible floppy or hard drive failure
has occurred.
Reseat all power and data cables and
restart the computer.
A possible USB failure has occurred.
Reinstall all USB devices, check cable
connections, and then restart
the computer.
green
green
1 Determine if a conflict exists by
A possible graphics card failure
has occurred.
yellow
yellow
Suggested Resolution
green
yellow
yellow
green
A B C D
green
green
= yellow
= green
= off
Quick Reference Guide
33
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Light Pattern
Problem Description
green
yellow
A B C D
yellow
yellow
= yellow
= green
= off
34
Quick Reference Guide
No memory modules are detected.
Suggested Resolution
1 Reseat the memory modules to
ensure that your computer is
successfully communicating with
the memory.
2 Restart the computer.
3 If the problem still exists, remove
all the memory modules and
install one memory module in
connector DIMM_1.
4 Restart the computer.
The following message appears:
Alert! Operating in Debug
Mode. Please Populate
Memory in Pairs for
Normal Operation.
5 Press <F1> to boot to the
operating system.
6 Run the Dell Diagnostics.
7 If the memory module passes, shut
down the computer, remove the
memory module, and then repeat the
process with the remaining memory
modules until a memory error occurs
during start-up or diagnostic testing.
If the first memory module tested is
defective, repeat the process with the
remaining modules to ensure that the
remaining modules are not defective.
8 When the defective memory module
is identified, contact Dell for
a replacement.
NOTE: If necessary, the computer can
operate in debug mode until new memory
modules are installed.
Light Pattern
green
Problem Description
Suggested Resolution
System board failure has occurred.
Contact Dell for technical assistance.
Memory modules are detected, but a
memory configuration or compatibility
error exists.
• Ensure that no special memory
module requirements exist (see
"Memory Overview" in the
User’s Guide).
• Verify that the memory modules that
you are installing are compatible with
your computer.
• Reinstall the memory modules and
restart the computer.
• If the problem persists, contact Dell.
yellow
A B C D
yellow
green
green
yellow
A B C D
green
yellow
green
yellow
A B C D
green
green
A possible expansion card failure
has occurred.
1 Determine if a conflict exists by
removing a card (not a graphics card)
and restarting the computer.
2 If the problem persists, reinstall the
card that you removed, remove a
different card, and then restart
the computer.
3 Repeat this process for each card. If
the computer starts normally,
troubleshoot the last card removed
from the computer for resource
conflicts (see your User’s Guide).
If the problem persists, contact Dell.
green
green
A B C D
yellow
A possible system board resource and/or Perform the procedures in your
hardware failure has occurred.
User’s Guide.
If the problem persists, contact Dell.
yellow
= yellow
= green
= off
Quick Reference Guide
35
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Light Pattern
green
Problem Description
Suggested Resolution
Another failure has occurred.
• Ensure that the cables are properly
connected to the system board from
the hard drive, CD drive, and
DVD drive.
• If the problem persists, contact Dell.
The computer is in a normal operating
condition after POST.
None.
green
A B C D
green
yellow
A B C D
green
green
green
green
= yellow
= green
= off
Memory Overview
NOTE: Your computer supports ECC and registered memory.
•
Memory modules should be installed in pairs of matched size, speed, and rank (1R is single
rank and 2R is dual rank). See the label on the memory module to determine its size, speed
rank, and organization. Be sure that your memory module labels match.
Example: 256MB 1Rx8 PC2-3200R-333-10:
•
Size = 256 MB
•
Speed = 3200
•
Rank = 1R
•
Organization = x8
256MB 2R XX XXX
36
Quick Reference Guide
•
Memory modules can be single rank (1R) or dual rank (2R) and should be installed in the
following order:
•
The highest rank memory module in DIMM_1 and DIMM_2
•
Equal or lower rank memory modules in DIMM_3 and DIMM_4
•
Single rank (1R) memory modules in DIMM_5 and DIMM_6
•
If only two memory modules are installed, they must be installed in DIMM_1 and DIMM_2.
These connectors are located on the outside edge of the board.
•
Memory modules should be installed in the following order: connectors DIMM_1 and
DIMM_2, DIMM_3 and DIMM_4, and then DIMM_5 and DIMM_6.
If dual-rank modules are installed in DIMM_3 and DIMM_4, then DIMM_5 and DIMM_6
cannot be used.
•
Dual-rank memory modules are not supported in DIMM_5 and DIMM_6.
NOTE: Memory purchased from Dell is covered under your computer warranty.
NOTICE: If you remove your original memory modules from the computer during a memory upgrade,
keep them separate from any new modules that you may have, even if you purchased the new modules
from Dell. If possible, do not pair an original memory module with a new memory module. Otherwise, your
computer may not start properly. You should install your original memory modules in pairs in connectors
DIMM_1 and DIMM_2, connectors DIMM_3 and DIMM_4, and then DIMM_5 and DIMM_6.
NOTICE: If you install more than 4 GB of memory, you must also install a fan to cool the computer. If you
do not install a fan, you will get an error message stating that you must install a fan or remove
some memory.
Quick Reference Guide
37
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Frequently Asked Questions
How Do I...
Solution
Where to Find Additional Information
Set up my computer to use
two monitors?
If your computer has the required
graphics card to support dual-monitor
setup, then look in your box for a
Y-cable. The cable has a single
connector on one end (plug this
connector into the back panel) and
branches into two connectors (plug
these connectors in the monitor
cables). For the Dell Precision 670
computer, see "Setting Up Your Dell
Precision 670 Computer" on page 9
and for the Dell Precision 470
computer, see "Setting Up Your Dell
Precision 470 Computer" on page 15.
To locate additional information
about using dual monitors, see the
graphics card documentation on the
Drivers and Utilities CD.
Connect my monitor when the
monitor cable connector doesn’t
seem to fit the connector on the
back of my computer?
If your graphics card has a
DVI connector but your monitor has
a VGA connector, then you need to
use an adapter. An adapter should be
included in the box.
For the Dell Precision 670 computer,
see "Connect the monitor" on
page 10 and for the Dell Precision 470
computer, see "Connect the monitor"
on page 16.
Connect my speakers?
If you have a sound card installed,
connect the speakers to the
connectors on the card. For the Dell
Precision 670 computer, see "Connect
the speakers" on page 13 and for the
Dell Precision 470 computer, see
"Connect the speakers" on page 17.
See the documentation that came
with your speakers for
more information.
Find the right connectors for my
USB or IEEE 1394 devices?
Your Dell Precision 670 computer has
two front panel and six back panel
USB 2.0 compliant connectors. It also
has two 6-pin serial IEEE 1394
connectors. See "Setting Up Your Dell
Precision 670 Computer" on page 9.
See the front and back view graphics
of your computer in your User’s
Guide. For help with locating your
User’s Guide, see "Dell Precision™
Mobile Workstation User’s Guide" on
page 6.
Your Dell Precision 470 computer has
two front panel and six back
panel USB 2.0 connectors. It is
also available with an add-in
PCI IEEE 1394 card. See "Setting Up
Your Dell Precision 470 Computer"
on page 15.
38
Quick Reference Guide
How Do I...
Solution
Where to Find Additional Information
Locate information about the
hardware and other technical
specifications for my computer?
Your User’s Guide has a specifications
table that provides more detailed
information about your computer
and the hardware. To locate your
User’s Guide, see "Finding
Information" on page 5.
Go to the Dell Support website at
support.dell.com and use one of the
following support tools: read white
papers on the latest technology or
communicate with other Dell users at
the Dell forum chat room.
Install new memory?
Your User’s Guide has a memory
section that provides detailed
information about your
computer’s memory.
For help with locating your User’s
Guide, see "Finding Information" on
page 5.
See "Memory Overview" on page 36.
Find documentation for my
computer?
The following documentation is
available for your computer:
• User’s Guide
• Product Information Guide
• System Information Label
• Service Manual
If you lose your documentation, it is
available on the Dell Support website
at support.dell.com.
To locate these documents, see
"Finding Information" on page 5.
Quick Reference Guide
39
40
Quick Reference Guide
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Index
B
beep codes, 28
C
CD
Drivers and Utilities, 5
operating system, 8
ResourceCD, 5
computer
beep codes, 28
conflicts
resolving software and
hardware
incompatibilities, 22
documentation, 5, 14, 18
device, 5
online, 7
Product Information Guide, 6
ResourceCD, 5
User’s Guide, 6
drivers
ResourceCD, 5
E
error messages
beep codes, 28
diagnostic lights, 29
operating system
Installation Guide, 8
CD, 8
P
Dell
support site, 7
hardware
beep codes, 28
Dell Premier Support
website, 6-7
Help and Support Center, 7
diagnostics
beep codes, 28
Drivers and Utilities CD, 5
lights, 29
Microsoft Windows label, 6
O
H
diagnostic lights, 29
M
Drivers and Utilities CD, 5
D
Device Manager, 23
lights
back of computer, 29
diagnostic, 29
I
IRQ conflicts, 22
L
labels
Microsoft Windows, 6
Service Tag, 6
problems
beep codes, 28
diagnostic lights, 29
R
reinstalling
Drivers and Utilties CD, 5
ResourceCD, 5
S
safety instructions, 6
Service Tag, 6
Index
41
42
Index
system board, 5
W
system information label, 5
warranty, 6
T
Windows 2000
Device Manager, 23
Hardware Troubleshooter, 23
troubleshooting
diagnostic lights, 29
Help and Support Center, 7
U
User’s Guide, 6
42
Index
Windows XP
Help and Support Center, 7