Dell Precision NT499, Руководство пользователя

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108
Troubleshooting Tools
When to Use the Dell Diagnostics
If you experience a problem with your computer, perform the checks in
Lockups and Software Problems (see "Troubleshooting" on page 113) and run
the Dell Diagnostics before you contact Dell for assistance.
You can run the Dell Diagnostics from your hard drive or from the Drivers and
Utilities disc.
See "System Setup" on page 81 to review your computer’s configuration
information, and ensure that the device that you want to test displays in
System Setup and is active.
NOTE:
The Dell Diagnostics works only on Dell computers.
NOTE:
Print the following procedures before you run the Dell diagnostics.
Starting the Dell Diagnostics From Your Hard Drive
The Dell Diagnostics is located on a separate diagnostic utility partition on
your hard drive.
NOTE:
If your computer cannot display a screen image, see "Contacting Dell" on
page 269 .
1
Turn on (or restart) your computer.
2
When the DELL logo appears, press <F12> immediately.
NOTE:
Keyboard failure may result when a key is held down for extended
periods of time. To avoid possible keyboard failure, press and release <F12> in
even intervals to open the
Boot Device Menu .
NOTE:
If at any time a message appears stating that no diagnostics utility
partition has been found, run the Dell Diagnostics from your Drivers and
Utilities disc
(see "Starting the Dell Diagnostics From the Drivers and
Utilities Disc" on page 109).
If you wait too long and the operating system logo appears, continue to
wait until you see the Microsoft
®
Windows
®
desktop, then shut down
your computer and try again.