Dell Precision T7400 (Late 2007) - Manual (Page 125)

Troubleshooting Tools 125
6 Select Run the 32 Bit Dell Diagnostics from the numbered list. If
multiple versions are listed, select the version appropriate for your
computer.
7 When the Dell Diagnostics Main Menu appears, select the test you want
to run.
Dell Diagnostics Main Menu
1 After the Dell Diagnostics loads and the Main Menu screen appears, click
the button for the option you want.
2 If a problem is 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 and follow the instructions on the screen.
If you cannot resolve the error condition, contact Dell (see "Contacting
Dell" on page 287).
NOTE: The Service Tag for your computer is located at the top of each test
screen. If you contact Dell, technical support will ask for your Service Tag.
3 If you run a test from the Custom Test or Symptom Tree option, click the
applicable tab described in the following table for more information.
Option Function
Express Test Performs a quick test of devices. This test typically takes
10 to 20 minutes and requires no interaction on your
part. Run Express Test first to increase the possibility of
tracing the problem quickly.
Extended Test Performs a thorough check of devices. This test typically
takes 1 hour or more and requires you to answer
questions periodically.
Custom Test Tests a specific device. You can customize the tests you
want to run.
Symptom Tree Lists the most common symptoms encountered and
allows you to select a test based on the symptom of the
problem you are having.