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Using Support Tools
Dell Diagnostics If you experience a problem with your
computer, perform the checks in “Lockups and
Software Problems” on page 31 and run the
Dell Diagnostics before you contact Dell for
technical assistance.
It is recommended that you print this procedure
before you begin.
NOTE: Dell Diagnostics works only on Dell
computers.
Starting Dell Diagnostics
The Dell Diagnostics is located on a hidden
diagnostic utility partition on your hard drive.
Ensure that the computer is connected to an 1.
electrical outlet that is known to be working
properly.
Hold down the <Fn> key while pressing the 2.
power button to turn on the computer.
Follow the on-screen instructions.3.
NOTE: If your computer cannot display
a screen image, running the diagnostics will
start testing the display. The diagnostics
beeps while testing the display. If the display
still does not show anything, try connecting
an external monitor or contact Dell, see
“Contacting Dell” on page 47.