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Troubleshooting
Dell™ XPS™ 720 Owner's Manual
Solving Problems
Power Lights
Diagnostic Lights
Beep Codes
Solving Problems
Follow these tips when you troubleshoot your computer:
If you added or removed a part before the problem started, review the installation procedures and ensure that the part is correctly installed.
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If a peripheral device does not work, ensure that the device is properly connected.
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If an error message appears on the screen, write down the exact message. This message may help support personnel diagnose and fix the problem(s).
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If an error message occurs in a program, see the program's documentation.
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NOTE:
The procedures in this document were written for the Windows default view, so they may not apply if you set your Dell™ computer to the
Windows Classic view.
Battery Problems
CAUTION:
There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type
recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
Replace the battery —
If you have to repeatedly reset time and date information after turning on the computer, or if an incorrect time or date displays during start-up, replace the
battery (see
Replacing the
Battery). If the battery still does not work properly, contact Dell (see
Drive Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
Ensure that Microsoft® Windows
Windows XP:
Click Start and click My Computer.
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Windows Vista™:
Click the Windows Vista Start button
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If the drive is not listed, perform a full scan with your antivirus software to check for and remove viruses. Viruses can sometimes prevent Windows from
recognizing the drive.
Test the drive —
Insert another disc to eliminate the possibility that the original drive is defective.
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Insert a bootable floppy disk and restart the computer.
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Clean the drive or disk —
See
Cleaning Your
Computer.
Check the cable connections
System Messages
Dell Diagnostics
Drivers
Restoring Your Operating System
®
Recognizes the drive —
and click Computer.
Contacting
Dell).
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