Check the Electrical Power Source
If you are experiencing problems with power, perform the following checks:
•Check the computer power indicator. When lit, the power indicator verifies that the power supply is operating.
•Verify that the electrical outlet is functional by plugging an operational device, such as a lamp, into the outlet.
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Plug the computer directly into a functioning electrical outlet.
If your computer is connected to a power strip, shut down the computer. Turn off and then turn on the power strip to reset it.
Running the Dell Diagnostics
The Dell Diagnostics helps you to check your computer hardware without any addi- tional equipment and without destroying any data. By using the diagnostics, you can have confidence in your computer’s operation. If you find a problem you cannot solve by yourself, the diagnostic tests can provide you with important information. Record this information on a copy of the Diagnostics Checklist (see Figure
NOTICE: The Dell Diagnostics is specifically designed for your computer. Do not run the Dell Diagnostics on any other computer. Using this diagnostic program with other computers may cause incorrect computer responses or result in error messages.
The Dell Diagnostics provides a series of menus and options from which you can choose particular device group tests. You can also control the sequence in which the tests are run. Other helpful features include:
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A menu category called Options that lets you run tests individually or collectively
An option that allows you to choose the number of times a device group test is repeated
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The ability to display or print out test results, or to save them in a file
The ability to choose the option to temporarily suspend testing if an error is detected, or to terminate testing if an adjustable error limit is reached
•A menu category called Devices that briefly describes each test and its parameters
•A menu category called Config that describes the configuration of the devices in the selected device group
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Status messages that inform you whether device group tests ran successfully
Error messages that appear if problems are detected
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