Dell Precision T3400 User's Guide - Page 108

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 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 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. 108 Troubleshooting Tools