Dell Latitude D820 Technical Manual page 47

3. Connect the computer to an electrical outlet.
4. The Dell Diagnostics can be invoked in one of two ways:
•
Turn on the computer. When the DELL™ logo appears, press <F12> 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® Windows® desktop. Then shut down your computer and try again.
•
Press and hold the <Fn> key while powering the computer on.
NOTE: If you see a message stating that no diagnostics utility partition has been found, run the
Dell Diagnostics from the optional Drivers and Utilities CD.
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
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.
Starting the Dell Diagnostics From the Drivers and Utilities CD
1. Insert the Drivers and Utilities CD.
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: The next steps change the boot sequence for one time only. On the 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.
Contacting Dell).