Dell Latitude D520 - Manual (Page 19)

Quick Reference Guide 19
Starting the Dell Diagnostics From Your Hard Drive
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 (see "Contacting Dell" in your User’s Guide).
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 docking device for instructions.
3 Connect the computer to an electrical outlet.
4 Diagnostics can be invoked in one of two ways:
a Turn on the computer. When the DELL™ logo appears, press immediately. Select
Diagnostics from the boot menu and press .
NOTE: 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.
b Press and hold the key while powering the computer on.
NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell
Diagnostics from the Drivers and Utilities CD.
The computer runs the Pre-boot System Assessment, a series of initial tests of your system board,
keyboard, hard drive, and display.
• During the assessment, answer any questions that appear.
• If a failure is detected, the computer stops and beeps. To stop the assessment and restart the
computer, press ; to continue to the next test, press ; to retest the component that
failed, press .
• If failures are detected during the Pre-boot System Assessment, write down the error code(s) and
contact Dell (see "Contacting Dell" in your User’s Guide).
If the Pre-boot System Assessment completes successfully, you receive the message Booting Dell
Diagnostic Utility Partition. Press any key to continue
.
5 Press any key to start the Dell Diagnostics from the diagnostics utility partition on your hard drive.
Starting the Dell Diagnostics From the Drivers and Utilities CD
1 Insert the Drivers and Utilities CD.
2 Shut down and restart the computer.
When the DELL logo appears, press immediately.
If you wait too long and the Windows logo appears, continue to wait until you see the Windows
desktop. Then shut down your computer and try again.
NOTE: The next steps change the boot sequence for one time only. On the next start-up, the computer boots
according to the devices specified in the system setup program.