Dell NH424 Lockups and Software Problems, Computer does not start up, Computer stops responding

3If you run a test from the Custom Test or Symptom Tree option, click the applicable tab described in the following table for more information.

Tab	Function
Results	Displays the results of the test and any error conditions
	encountered.
Errors	Displays error conditions encountered, error codes, and
	the problem description.
Help	Describes the test and may indicate requirements for
	running the test.
Configuration	Displays your hardware configuration for the selected
	device.
	The Dell Diagnostics obtains configuration information
	for all devices from system setup, memory, and various
	internal tests, and it displays the information in the
	device list in the left pane of the screen. The device list
	may not display the names of all the components
	installed on your computer or all devices attached to your
	computer.
Parameters	Allows you to customize the test by changing the test
	settings.

4When the tests are completed, if you are running the Dell Diagnostics from the Drivers and Utilities CD, remove the CD.

When the tests are complete, close the test screen to return to the Main Menu screen. To exit the Dell Diagnostics and restart the computer, close the Main Menu screen.

Lockups and Software Problems

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product

Information Guide.

The computer does not start up

E N S U R E T H A T T H E AC A D A P T E R I S F I R M L Y C O N N E C T E D T O T H E C O M P U T E R A N D T O T H E E L E C T R I C A L O U T L E T .

The computer stops responding

NOTICE: You might lose data if you are unable to perform an operating system shutdown.

TU R N T H E C O M P U T E R O F F — If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold the power button for at least 8 to 10 seconds until the computer turns off. Then restart your computer.

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Quick Reference Guide