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Solving Problems 49
Solving Problems
Dell Diagnostics
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your
Product Information Guide.
When to Use the Dell Diagnostics
If you experience a problem with your computer, perform the checks in "Solving Problems" and run
the Dell Diagnostics before you contact Dell for technical assistance.
NOTICE: The Dell Diagnostics works only on Dell™ computers.
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.
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
Turn on the computer. When the DELL™ logo appears, press <F12> immediately.
NOTE: If you cannot see anything on your display, hold down <Fn> and press the computer’s power
button to begin the Dell Diagnostics. The computer automatically runs the
Pre-boot System Assessment.
If you wait too long and the Microsoft
®
Windows
®
logo appears, continue to wait until
you see the Windows desktop. Then shut down your computer through the
Start
menu
and try again.