Dell Inspiron 15z (1570, Mid 2009) - Manual (Page 48)

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Using Support Tools
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, contact Dell (see
“Contacting Dell” on page 63).
Ensure that the computer is connected to an 1.
electrical outlet that is known to be working
properly.
Turn on (or restart) your computer.
2.
When the DELL 3. ™ 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: If you see a message stating that no
diagnostics utility partition has been found,
run the Dell Diagnostics from the Drivers
and Utilities disc.
If PSA is invoked:
The PSA starts running tests. a.
If the PSA completes successfully, b.
the following message appears: “No
problems have been found
with this system so far.
Do you want to run the
remaining memory tests? This
will take about 30 minutes
or more. Do you want to
continue? (Recommended).”