Dell OptiPlex 755 Support Question
Dell OptiPlex 755 Support Question
Find answers below for this question about Dell OptiPlex 755.Need a Dell OptiPlex 755 manual? We have 3 online manuals for this item!
Question posted by roshnagi on February 5th, 2014
What Does Error Light 3 Only Mean On A Dell Optiplex 755
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Related Dell OptiPlex 755 Manual Pages
Quick Reference
Guide - Page 2
... trademarks and trade names other than its own. Other trademarks and trade names may be used by Bluetooth SIG, Inc. Dell Inc. Information in this text: Dell, the DELL logo, OptiPlex, Inspiron, Dimension, Latitude, Dell Precision, DellNet, TravelLite, OpenManage, PowerVault, Axim, PowerEdge, PowerConnect, PowerApp, and StrikeZone are trademarks of your computer. Notes, Notices, and Cautions...
Quick Reference
Guide - Page 4
... Removing the Computer Cover 55 Inside Your Computer 56 Cable Cover (Optional 57
System Board Components 59 Jumper Settings 60
Solving Problems 61 Dell Diagnostics 61 System Lights 65 Diagnostic Lights 66 Beep Codes 70 Resolving Software and Hardware Incompatibilities 72 Restoring Your Operating System 73 Using Microsoft Windows System Restore . . . . 73 Using...
Quick Reference
Guide - Page 6
...set up my computer
Owner's Manual
• How to run the Dell Diagnostics • Error codes and diagnostic lights
NOTE: This document may be optional and may not ship with your... Guide for your
computer.
6
Quick Reference Guide
Dell™ Product Information Guide
• How to remove and replace parts
Dell™ OptiPlex™ User's Guide
• Specifications
Microsoft Windows...
Quick Reference
Guide - Page 28
...turned off the computer by pressing the power button. To exit from a powersaving mode, see "Diagnostic Lights" on the diagnostic code.
For more information, see "Power Management for Windows XP and Vista" in...the computer will perform an operating system shutdown.
4 Dell badge
This badge can be rotated to match the orientation of light codes that can also rotate the badge using the slot...
Quick Reference
Guide - Page 38
... when the hard drive is established.
5 diagnostic lights Use the lights to match the orientation of your operating system has ACPI enabled, when you press the power button the computer will perform an operating system shutdown.
3 Dell badge
Can be rotated to help you troubleshoot a computer problem based on the diagnostic code. For...
Quick Reference
Guide - Page 39
...
9 microphone connector
10 3.5-inch drive bay
11 5.25-inch drive bay
The power light illuminates and blinks or remains solid to attach headphones and most kinds of light codes that can help you troubleshoot problems with your computer.
See "Dell Diagnostics" on page 61 for Windows XP and Vista" in the User's Guide...
Quick Reference
Guide - Page 61
... real-time clock has not been reset. unjumpered
Solving Problems
Dell provides a number of the error, beep codes, or diagnostics light patterns, record your Express Service Code and Service Tag below, and then contact Dell from Dell, write a detailed description of tools to Use the Dell Diagnostics
If you begin .
For the latest troubleshooting information available...
Quick Reference
Guide - Page 65
... power button, move the mouse, or press a key on the system running the Dell Diagnostics from the Drivers and Utilities CD, remove the CD.
5 When the tests... System Lights
Your power button light and hard drive light may be faulty or
complete.
operating normally. On the desktop computer, a solid green light indicates a network connection.
Blinks green
A configuration error exists....
Quick Reference
Guide - Page 67
... or reinstalled all modules without error.
• If available, install working memory of the same type into a working electrical outlet (see "Power Problems" in the User's Guide).
• If the problem persists, contact Dell (see "Contacting Dell" in a normal off condition or a possible pre-BIOS failure has occurred.
Power Light
Problem Description
Suggested Resolution...
Quick Reference
Guide - Page 68
...module or reinstalled all modules without error.
• If available, install working graphics card into your computer.
• If the problem persists, contact Dell (see "Installing Memory" in the... User's Guide) and restart the computer.
Reseat all cable connections. A possible USB failure has occurred. Power Light
Problem Description...
Quick Reference
Guide - Page 69
....
3 Repeat this process for your system).
• If the problem persists, contact Dell (see "Contacting Dell" in the User's Guide). Quick Reference Guide
69 Power Light
Problem Description
Suggested Resolution
Memory modules are detected, but a memory configuration or compatibility error has occurred.
• Ensure that no special requirements for memory module/connector placement exist...
Quick Reference
Guide - Page 70
...identifies a problem. If the problem persists, contact Dell (see "Contacting Dell" in the User's Guide) for instructions on ...errors. Suggested Resolution
• Ensure that the computer encountered a memory problem. Beep Codes
Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of three beeps, and then one beep. Power Light...
Quick Reference
Guide - Page 83
... to previous state, 73
cover opening, 22, 32, 43
D
Dell support site, 8 diagnostic lights, 65-66 diagnostics
beep codes, 70 lights, 65-66 documentation End User License Agreement, 6 ergonomics, 6 online..., 78 reinstalling, 79
E
End User License Agreement, 6 ergonomics information, 6 error messages
beep codes, 70 diagnostic lights, 65-66
F
Factory Image Restore, 75, 77
H
hardware beep codes, 70...
User's Guide - Page 18
... configure system settings • How to troubleshoot and solve problems
• Service Tag and Express Service Code • Microsoft Windows License Label
Find It Here Dell™ Product Information Guide
Dell™ OptiPlex™ User's Guide Microsoft Windows Help and Support Center
1 Click Start or → Help and Support→...
User's Guide - Page 346
... graphics card may be faulty or incorrectly installed. Power Light
Problem Description
Suggested Resolution
Blinks green several A configuration error exists. times and then turns off
Check the diagnostic lights to see if the specific problem is not identified, contact Dell for technical assistance (see "Diagnostic Lights" on page 370).
346
Solving Problems may Check the...
User's Guide - Page 347
...into your computer.
• If the problem persists, contact Dell (see "Contacting Dell" on page 370). Light Pattern
Problem Description
Suggested Resolution
The computer is in the Product Information... POST, all modules without error.
• If available, install working electrical outlet (see "Power Problems" on page 339).
• If the problem persists, contact Dell (see "Installing Memory" ...
User's Guide - Page 348
..."Installing Memory" on page 370).
348
Solving Problems Light Pattern (continued)
Problem Description
Suggested Resolution
A possible floppy...
• If the problem persists, contact Dell (see "Memory" on page 313).
• Ensure that...until you have identified a faulty module or reinstalled all modules without error.
• If available, install working memory of the same type...
User's Guide - Page 349
... problem persists, contact Dell (see "Contacting Dell" on page 370). Solving Problems
349 Another failure has occurred.
• Ensure that all hard drive and optical drive cables are properly connected to the system board (see the "System Board Components" section for your computer).
• If there is an error message on the screen...
User's Guide - Page 373
...with the FCC regulations:
• Product name: Dell™ OptiPlex™ 755
• Model numbers: DCTR, DCNE, DCSM, DCCY
• Company name: Dell Inc.
FCC Notices (US Only)
373 This ...equipment.
could void your Product Information Guide. Worldwide Regulatory Compliance & Environmental Affairs One Dell Way Round Rock, TX 78682 USA 512-338-4400
NOTE: For Further regulatory ...
User's Guide - Page 382
...call Dell for smart cards.
382
Glossary
A file can have interference than the higher frequency radiations, such as infrared and light. The...interference - Radio frequencies are at which your Windows desktop and double-click the icon, you can connect ...architecture). serial connector -
A program that is used for errors. Setup program differs from system setup. When you shut down...
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