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 jahlol on November 4th, 2013
Dell Optiplex 755 Wont Start, Just Flashing Power Light Orange Motherboard Led
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Current Answers
Related Dell OptiPlex 755 Manual Pages
Quick Reference
Guide - Page 6
...and solve problems
• How to run the Dell Diagnostics • Error codes and diagnostic lights
NOTE: This document may be optional and may...Dell™ OptiPlex™ User's Guide
• Specifications
Microsoft Windows Help and Support
• How to configure system settings
Center
• How to troubleshoot and solve problems
1 Click Start or → Help and Support→ Dell...
Quick Reference
Guide - Page 18
...'s Guide).
For more information about sleep modes and pwoer-saving mode, see "Power Problems" in the Windows Device Manager. Use the microphone connector to indicate different operating modes:
• No light - 8 power light
9 hard drive activity light
10 headphone connector
11 microphone connector
The power light illuminates and blinks or remains solid to attach a microphone.
18
Quick...
Quick Reference
Guide - Page 28
... press the power button the computer will perform an operating system shutdown.
4 Dell badge
This badge...power light
The power light illuminates and blinks or remains solid to help you troubleshoot problems with your computer.
6 diagnostic lights Use the lights to indicate different operating states:
• No light - For more information, see "Power Management for a description of light...
Quick Reference
Guide - Page 39
..." in the Windows Device Manager. See "Dell Diagnostics" on page 61 for Windows XP and Vista" in a power-saving mode.
• Blinking or solid amber - Use the microphone connector to attach headphones and most kinds of light codes that can help you troubleshoot problems with your computer. Can contain a slimline optical drive. Insert...
Quick Reference
Guide - Page 65
... Close the test screen to return to see if the specific problem is identified (see "Contacting
Dell" in the
failure has occurred. On the desktop computer, a solid green light indicates a network connection.
System Lights
Your power button light and hard drive light may be faulty or
complete. 4 When the tests are completed, if you are running If...
Quick Reference
Guide - Page 66
...: Before you begin any of the lights help troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on diagnosing the beep code. When the computer starts normally, the lights flash before turning off before booting to see if the specific problem is identified (see "Contacting Dell" in the Product Information Guide. If the computer malfunctions, the...
Quick Reference
Guide - Page 67
Power Light
Problem Description
Suggested Resolution
The computer is in the User's Guide).
Quick Reference Guide
67 A possible processor failure has occurred.
• Reseat the processor (see Processor information for your computer (see "Installing Memory" in the User's Guide).
• If the problem persists, contact Dell (see "Installing Memory" in the User's Guide). If...
Quick Reference
Guide - Page 68
... failure has occurred. Reseat all cable connections. If the computer starts normally, continue to install additional memory modules (one module (see "Contacting Dell" in the User's Guide) and restart the computer.
No...• If the problem persists, contact Dell (see "Installing Memory" in the User's Guide). Power Light
Problem Description A possible graphics card failure has occurred.
Quick Reference
Guide - Page 69
... process for each expansion card installed. If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts (see "Resolving Software and Hardware Incompatibilities" on page 72).
4 If the problem persists, contact Dell (see "Contacting Dell" in the User's Guide). Power Light
Problem Description
Suggested Resolution
Memory modules are detected, but...
Quick Reference
Guide - Page 70
... Dell (see "Contacting Dell" in the User's Guide). 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.
Suggested Resolution
• Ensure that the computer encountered a memory problem. Reseating the memory modules may correct the following beep code errors. Power Light...
User's Guide - Page 14
... 343 3D image quality is poor 344
Power Lights 344
System Lights 345
Diagnostic Lights 347
Beep Codes 350
System Messages 351
Dell Diagnostics 353 When to Use the Dell Diagnostics 353 Starting the Dell Diagnostics From Your Hard Drive . . . . . 353 Starting the Dell Diagnostics From the Drivers and Utilities CD (Optional 354 Dell Diagnostics Main Menu 355
Drivers 356
14...
User's Guide - Page 18
... computer. • Use the Service Tag to identify your computer when you
use support.dell.com or contact support. • Enter the Express Service Code to troubleshoot and solve... 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→ Dell User and System Guides&#...
User's Guide - Page 38
...manual selection power supplies-90 to 135 V at 60 Hz; 180 to modify the settings
Controls and Lights
Power control
push button
Power light
green light - orange light for a 1000-Mb (1-Gb) operation
Activity light (on integrated network yellow blinking light adapter)
Diagnostic lights
four lights on the front panel (See "Diagnostic Lights" on page 347.)
Standby power light
AUX_PWR on...
User's Guide - Page 101
... network adapter)
green light for 10-Mb operation; orange light for 1000-Mb (1-Gb) operation
Activity light (on integrated network yellow blinking light adapter)
Diagnostic lights
four lights on the front panel (See "Diagnostic Lights" on page 347.)
Standby power light
AUX_PWR on the system board
Power DC power supply:
Wattage
NOTE: Power consumption from an AC power source can be zero...
User's Guide - Page 166
... Windows Vista" on page 339. 7 power light
8 headphone connector 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...Dell Diagnostics" on .
See "Power Problems" on page 292. To exit from a power-saving mode, see "Back Panel Connectors" on page 167).
The computer is configured as a wake device in a power...
User's Guide - Page 178
... the front panel (See "Dell Diagnostics" on page 353.)
Standby power light
AUX_PWR on state. amber light - solid amber indicates an internal power problem (See "Power Problems" on page 339.)
hard drive access light
green
Link light
solid green light indicates network connection
Link integrity light (on integrated network adapter)
green light for 100-Mb operation; orange light for 10-Mb...
User's Guide - Page 243
...connected to an AC outlet and the computer. orange light for a 1000-Mb (1-Gb) operation
Activity light (on integrated network yellow blinking light adapter)
Diagnostic lights
four lights on the back panel (See "Diagnostic Lights" on page 347.)
Standby power light
AUX_PWR on integrated network adapter)
green light for a single boot (during start -up the Windows Security window;
amber...
User's Guide - Page 344
... to resume normal operation. Windows Vista: 1 Click Start → Control Panel→ Hardware and Sound→ Personalization→ Display Settings. 2 Adjust Resolution and Colors settings, as a lamp. CHECK THE MONITOR POWER LIGHT - • If the power light is lit or blinking, the monitor has power. • If the power light is off nearby devices to the card. See...
User's Guide - Page 346
... or the graphics card may be faulty or incorrectly installed.
See "Beep Codes" on page 350 for technical assistance (see "Contacting Dell" on diagnosing the beep code. Solid green power light and no beep code and no beep code but the computer locks up during POST
A problem was detected while the BIOS was...
User's Guide - Page 373
... by turning the equipment off and on, you are designed to comply with the FCC regulations:
• Product name: Dell™ OptiPlex™ 755
• Model numbers: DCTR, DCNE, DCSM, DCCY
• Company name: Dell Inc.
could void your Product Information Guide.
However, there is provided on different branch circuits. If necessary, consult a representative...
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