Dell Precision M6400 (Late 2008) - Manual (Page 27)

Troubleshooting Tips
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Troubleshooting Tips
CAUTION:
Always unplug your computer from the electrical outlet before
opening the cover.
NOTE:
For detailed troubleshooting information, including responding to system
messages, see your Service Manual on support.dell.com.
Using the Hardware Troubleshooter
1 Click the Windows Vista Start button , and click Help and Support.
2 Type hardware troubleshooter in the search field and press
to start the search.
3 In the search results, select the option that best describes the problem and
follow the remaining troubleshooting steps.
Tips
• If a device does not work, ensure that the device is properly connected.
• If you added or removed a part before the problem started, review the
installation procedures and ensure that the part is correctly installed.
• If an error message appears on the screen, write down the exact message.
This message may help support personnel to diagnose and fix the
problem(s).
• If an error message occurs in a program, see the program documentation.
Power Problems
CAUTION:
Before working inside your computer, read the safety information that
shipped with your computer. For additional safety best practices information, see
www.dell.com/regulatory_compliance.
I F THE POWER LIGHT IS OFF — The computer is either turned off or is not
receiving power.
• Reseat the power cable in the power connector on the back of the
computer and the electrical outlet.
book.book Page 27 Monday, September 8, 2008 11:51 AM