Dell Precision 470 Support Question
Dell Precision 470 Support Question
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Question posted by bigdtoby02 on September 24th, 2014
Dell Precision 470 Won't Power On Power Light Blinks
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Current Answers
Answer #1: Posted by freginold on November 21st, 2014 4:55 AM
freginold
Member since:
December 20th, 2011 Points: 23,253,885
Member since:
December 20th, 2011 Points: 23,253,885
Often when a computer won't turn on, it's because one of two components has failed: either the power supply unit or the motherboard (assuming you've ruled out the power coming in from the wall or surge protector as the problem).
Power supplies are generally not terribly expensive, compared to other components. If you're not getting any power at all, the power supply is a likely culprit. It's a much cheaper option to try than the motherboard. If you have a voltmeter or a power supply tester, you can check the power supply to verify that it's not supplying any power.
The motherboard is expensive to replace, so if you think the motherboard is the problem (if you've tried the power supply or ruled it out as the problem) it might be cheaper to get a new computer than have the motherboard repaired or replaced.
Power supplies are generally not terribly expensive, compared to other components. If you're not getting any power at all, the power supply is a likely culprit. It's a much cheaper option to try than the motherboard. If you have a voltmeter or a power supply tester, you can check the power supply to verify that it's not supplying any power.
The motherboard is expensive to replace, so if you think the motherboard is the problem (if you've tried the power supply or ruled it out as the problem) it might be cheaper to get a new computer than have the motherboard repaired or replaced.
Related Dell Precision 470 Manual Pages
Quick Reference Guide - Page 2
Abbreviations and Acronyms
For a complete list of Dell Inc.; If you purchased a Dell™ n Series computer, any proprietary interest in this text: Dell, the DELL logo, and Dell Precision are trademarks of abbreviations and acronyms, see the "Glossary" in any manner whatsoever without notice. © 2004 Dell Inc.
All rights reserved.
Information in this document to refer to...
Quick Reference Guide - Page 3
Contents
Finding Information 5 Setting Up Your Dell Precision 670 Computer 9 Setting Up Your Dell Precision 470 Computer 15 Opening the Computer Cover 18 Caring ...Good Configuration 24 When to Use the Dell Diagnostics 25 Before You Start Testing 25 Running the Dell Diagnostics 26 System Lights 27 Beep Codes 28 Error Messages 29 Diagnostic Lights 29 Memory Overview 36 Frequently Asked ...
Quick Reference Guide - Page 6
www.dell.com | support.dell.com
What Are You Looking For? • Warranty information • Terms and Conditions (U.S.... solve problems
• Service Tag and Express Service Code • Microsoft Windows License Label
Find It Here Dell™ Product Information Guide
Dell Precision™ Mobile Workstation User's Guide Microsoft® Windows® XP Help and Support Center
1 Click the ...
Quick Reference Guide - Page 8
... reinstall your operating system, 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
NOTE: The color of your CD varies based on your computer.
• How to use the Operating System CD...
Quick Reference Guide - Page 9
... Guide
9 NOTE: A modem is not included as a standard feature with Dell Precision workstations, but you begin any of the procedures in this section, follow the... you can damage the network adapter. NOTICE: Do not connect a modem cable to the card. Setting Up Your Dell Precision 670 Computer
1 Connect the keyboard and the mouse. You must complete all steps to properly set up your computer ...
Quick Reference Guide - Page 13
NOTE: If your computer 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 4 Connect the speakers.
Quick Reference Guide - Page 14
... Support, click Systems, and then select your hard drive: Click the Start button and click Help and Support.
To access your User's Guide from your Dell Precision computer.
14
Quick Reference Guide Congratulations! You have completed the setup for information specific to verify that ask you install any devices or software that...
Quick Reference Guide - Page 15
.... Quick Reference Guide
15
NOTE: A modem is not included as a standard feature with Dell Precision workstations, but you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
Setting Up Your Dell Precision 470 Computer
CAUTION: Before you can damage the network adapter. PS/2 or USB
PS...
Quick Reference Guide - Page 17
Quick Reference Guide
17
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. 4 Connect the speakers.
Quick Reference Guide - Page 18
... computer. 4 Disconnect your Dell Precision 470 computer. NOTICE: Ensure that ask you for your computer and all attached devices from the Dell Support website: 1 Go to support.dell.com. 2 Follow the prompts...read the documentation that came with your Dell Precision computer. To access your User's Guide from electrical outlets, and then press the power button to ground the system board. 5...
Quick Reference Guide - Page 19
b Raise the cover, and pivot it toward the top of the computer.
Dell Precision 670 Computer
cover release latch
security cable slot padlock ring
Quick Reference Guide
19 While you work, periodically touch any static electricity that could harm ...
Quick Reference Guide - Page 20
www.dell.com | support.dell.com
Inside the Dell Precision 670 Computer
chassis intrusion switch system board
floppy drive (optional) CD/DVD drive(s)
hard drive(s)
processor airflow shroud
power supply
20
Quick Reference Guide
Quick Reference Guide - Page 21
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)
chassis intrusion switch system board
hard drive(s)
processor airflow shroud
power supply
Quick Reference Guide
21
Quick Reference Guide - Page 22
... • Back up files on the screen, write down the exact message. www.dell.com | support.dell.com
Caring for Your Computer
To help technical support diagnose and fix the problem(s). &#...: • To avoid losing or corrupting data, never turn off your computer when the hard drive light is properly connected. • If an error message appears on a regular basis. • Periodically clean...
Quick Reference Guide - Page 27
... is identified.
The Dell Diagnostics is running , allow the testing to see if the specific problem is identified.
Check the diagnostic lights to see if the specific problem is in the User's Guide.
Check the diagnostic lights to see if the specific problem is operating normally.
Power Light Solid green
Blinking green
Blinks green several times and...
Quick Reference Guide - Page 28
... failure
4-3-3 4-3-4 4-4-1 4-4-2
3-2-4 3-3-1 3-3-2
Keyboard Controller Test failure NVRAM power loss Invalid NVRAM configuration
4-4-3 4-4-4 4-3-4
Cause Video Memory Test failure Screen ... the Diagnostic Checklist (see your User's Guide).
2 Run the Dell Diagnostics to identify a more serious cause.
3 Contact Dell for video ROM failure No timer tick Shutdown failure Gate A20 failure...
Quick Reference Guide - Page 30
... you are trying to turn on, ensure that the processor is on.
Perform the procedure in "Power Problems" in the User's Guide.
If the problem is still not resolved, contact Dell for technical assistance. If the power light is off, ensure that the computer is connected to wake the computer.
off yellow off off...
Quick Reference Guide - Page 31
...the User's Guide. yellow green
green A possible VRM 0 and VRM 1 Contact Dell for technical assistance. Light Pattern ABCD
ABCD
ABCD
ABCD = yellow = green = off
Problem Description
Suggested ...processor and restart the computer.
= yellow = green = off
Diagnostic Light Codes During POST
Light Pattern ABCD
yellow yellow green yellow
Problem Description
Suggested Resolution
A possible ...
Quick Reference Guide - Page 33
...If the problem persists or the computer has integrated graphics, contact Dell.
A possible floppy or hard drive failure has occurred. Reseat ...from the computer for each card. Quick Reference Guide
33 Light Pattern ABCD
yellow green yellow yellow
ABCD
yellow green yellow ... has occurred. Reinstall all power and data cables and restart the computer. A possible USB failure ...
Quick Reference Guide - Page 38
... this connector into the back panel) and branches into two connectors (plug these connectors in your box for the Dell Precision 470 computer, see "Connect the speakers" on page 6.
38
Quick Reference Guide Your Dell Precision 470 computer has two front panel and six back panel USB 2.0 connectors. See the front and back view graphics of...
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