Dell PRECISION PP18L Quick Reference Manual page 23

Starting the Dell Diagnostics From the Drivers and Utilities Media
1 Insert the Drivers and Utilities media.
2 Shut down and restart the computer.
When the DELL logo appears, press <F12> immediately.
If you wait too long and the Windows logo appears, continue to wait until
you see the Windows desktop. Then shut down your computer and try
again.
NOTE:
next start-up, the computer boots according to the devices specified in the
system setup program.
3 When the boot device list appears, highlight CD/DVD/CD-RW Drive
and press <Enter>.
4 Select the Boot from CD-ROM option from the menu that appears and
press <Enter>.
5 Type 1 to start the menu and press <Enter> to proceed.
6 Select Run the 32 Bit Dell Diagnostics from the numbered list. If
multiple versions are listed, select the version appropriate for your
computer.
7 When the Dell Diagnostics Main Menu appears, select the test you want
to run.
Dell Diagnostics Main Menu
1 After the Dell Diagnostics loads and the Main Menu screen appears, click
the button for the option you want.
Option
Express Test
Extended Test
The next steps change the boot sequence for one time only. On the
Function
Performs a quick test of devices. This test typically takes 10 to
20 minutes and requires no interaction on your part. Run
Express Test first to increase the possibility of tracing the
problem quickly.
Performs a thorough check of devices. This test typically
takes 1 hour or more and requires you to answer questions
periodically.
Quick Reference Guide
23