Dell Vostro 420 (Late 2008) - Manual (Page 17)

Troubleshooting
17
NOTE:
It is recommended that you select Extended Test to perform a more
thorough check of devices in the computer.
For any problem encountered during a test, a message appears with an error
code and a description of the problem. Write down the error code and
problem description exactly as it appears and follow the instructions on the
screen. If you cannot resolve the problem, contact Dell (see "Contacting Dell"
on page 137).
NOTE:
When contacting Dell support, have your Service Tag ready. The Service
Tag for your computer is located at the top of each test screen.
The following tabs provide additional information for tests run from the
Custom Test or Symptom Tree option:
Option Function
Express Test Performs a quick test of devices in the
system. This typically can take 10 to 20
minutes.
NOTE:
The Express Test requires no interaction on your
part. Run Express Test first to increase the possibility of
tracing a problem quickly.
Extended Test Performs a thorough check of devices in
the system. This typically can take an
hour or more.
NOTE:
The Extended Test periodically requires your input
to answer specific questions.
Custom Test Use to test a specific device or
customize the tests to be run.
Symptom Tree This option allows you to select tests
based on a symptom of the problem you
are having. This option lists the most
common symptoms.
Tab Function
Results Displays the results of the test
and any error conditions
encountered.