Dell Precision M2300 Guide De Référence Rapide page 22

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:
Turn on the computer. When the DELL™ logo appears, press <F12>
a
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
computer and try again.
Press and hold the <Fn> key while powering the computer on.
b
NOTE:
If you see a message stating that no diagnostics utility partition has
been found, run the Dell Diagnostics from the Drivers and Utilities media.
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 <Esc>; to continue to the
next test, press <y>; to retest the component that failed, press <r>.
• 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.
22
Quick Reference Guide
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Windows
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desktop. Then shut down your