Dell Dimension 2010 - Manual (Page 42)

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Using Support Tools
Start the Dell Diagnostics from your hard drive
or from the Drivers and Utilities disc.
Starting 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, see “Contacting Dell” on
page 54.
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. When the DELL ™ logo appears, press <F12>
immediately. Select Diagnostics from the
boot menu and press <Enter>.
This will invoke the Pre-Boot System
Assessment (PSA) in some computers.
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: If you see a message stating that no
diagnostics utility partition has been found,
run the Dell Diagnostics from the Drivers
and Utilities disc.