Dell Inspiron 14 (N4120, Early 2011) - Manual (Page 67)

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Using Support Tools
1. Turn on (or restart) your computer.
2. 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.
3. Select Diagnostics from the menu and
press <Enter>.
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 <n>; to
continue to the next test, press <y>; to
retest the component that failed, press <r>.
• If failures are detected during the
Enhanced Pre-boot System Assessment,
write down the error code(s) and contact
Dell (see “Contacting Dell” on page 82).
If the Enhanced Pre-boot System Assessment
completes successfully, the following
message appears: “
Do you want to run
the remaining memory tests? This
will take about 30 minutes or
more. Do you want to continue?
(Recommended).”
If you are experiencing memory issues, press
<y>, otherwise press <n>. The following
message is displayed: “
Pre-boot System
Assessment complete.”
Click Exit to reboot your computer.