Quick Reference Guide 21
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 online User’s
Guide for details).
NOTE: If the computer is connected to a docking device (docked), undock it. See the documentation that came
with your docking device for instructions.
1
Ensure that the computer is connected to an electrical outlet that is known to be working properly.
2
Turn on (or restart) your computer.
3
Start the Dell Diagnostics in one of the following two ways:
a
When the DELL™ logo appears, press <F12> immediately. Select Diagnostics from the boot
menu and press <Enter>.
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.
NOTE: Before attempting option B, the computer must be powered down completely.
b
Press and hold the <Fn> key while powering the computer on.
NOTE: If you see a message stating that no diagnostics utility partition has been found, run the
DellDiagnostics from the Drivers and Utilities media.
The computer runs the Pre-boot System Assessment (PSA), a series of initial tests of your system
board, keyboard, display, memory, hard drive, etc.
• During the assessment, answer any questions that appear.
• If failures are detected during the Pre-boot System Assessment, write down the error code(s) and
see "Contacting Dell" in your online
User’s Guide
.
If the Pre-boot System Assessment completes successfully, you will receive the message, "
Booting
Dell Diagnostic Utility Partition.Press any key to continue"
.
4
Press any key to start the Dell Diagnostics from the diagnostics utility partition on your harddrive.
Starting the Dell Diagnostics From the Drivers and Utilities Media
1
Insert the
Drivers and Utilities
media.
2
Shut down and restart the computer.
When the DELL logo appears, press <F12> immediately.
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.
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.
3
When the boot device list appears, highlight
CD/DVD/CD-RW
and press <Enter>.