Dell Vostro A840 (Mid 2008) - Manual (Page 42)

Troubleshooting
42
Dell Diagnostics
CAUTION: Before working inside your
computer, read the safety information that
shipped with your computer. For additional
safety best practices information, see the
Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
When to Use the Dell Diagnostics
If you experience a problem with your computer,
perform the checks in Lockups and Software
Problems (see "Lockups and Software Problems" on
page 47) and run the Dell Diagnostics before you
contact Dell for technical assistance.
It is recommended that you print these procedures
before you begin.
NOTICE: The Dell Diagnostics works only on
Dell computers.
NOTE: The Dell Drivers and Utilities media is
optional and may not ship with your
computer.
See your Service Manual at support.dell.com to
review your computer’s configuration information,
and ensure that the device that you want to test
displays in the system setup program and is active.
Start the Dell Diagnostics from your hard drive or
from the Dell Drivers and Utilities media.
Starting the Dell Diagnostics From Your
Hard Drive
NOTE: If your computer cannot display
a screen image, see "Contacting Dell" on
page 69.
1 Ensure that the computer is connected to an
electrical outlet that is known to be working
properly.
2 Turn on (or restart) your computer.
3 When the DELL™ logo appears, press <F12>
immediately. Select Diagnostics from the
start menu and press <Enter>.
book.book Page 42 Thursday, September 25, 2008 2:38 PM