Dell LATITUDE D400 - Manual (Page 31)

Using the Dell Diagnostics
When to Use the Dell Diagnostics
Features of the Dell Diagnostics
Starting the Dell Diagnostics
When to Use the Dell Diagnostics
Whenever a major component or device in your computer does not function properly, you may have a component failure. If
you are experiencing a problem with your Dell™ computer, perform the checks in " Solving Problems " and run the Dell
Diagnostics before you call Dell for technical assistance. Running the Dell Diagnostics may help you to resolve the problem
yourself quickly without having to contact Dell for assistance.
If you are experienced with computers and know what component(s) you need to test, select the appropriate diagnostic test
group(s) or subtest(s). If you are unsure about how to begin diagnosing a problem, see " Starting the Dell Diagnostics ."
Features of the Dell Diagnostics
The Dell Diagnostics helps you to check your computer hardware without any additional equipment and without destroying
any data. By using the diagnostics, you can have confidence in the operation of your computer. If you find a problem that you
cannot solve by yourself, the diagnostic tests can provide you with important information you need when talking to Dell's
service and support personnel.
NOTICE: Use the Dell Diagnostics to test only your Dell computer. Using this program with other computers may cause
incorrect computer responses or result in error messages.
The diagnostic test groups or subtests also have the following features:
Options that let you perform express, extended, or custom tests on one or all devices
An option that allows you to select tests based on a symptom of the problem you are having
An option that allows you to choose the number of times a test group or subtest is repeated
The ability to display test results
Options to temporarily suspend testing if an error is detected, or to terminate testing
Extensive online Help that describes the tests and devices
Status messages that inform you whether test groups or subtests were completed successfully
Error messages that appear if any problems are detected
Starting the Dell Diagnostics
The Dell Diagnostics is located on a hidden Diagnostic utility partition on your hard drive.
NOTE: If your computer cannot display a screen image, contact Dell .
1. Shut down the computer.
2. If the computer is connected to a docking device (docked), undock it. See the documentation that came with your