Dell OptiPlex 760 - Manual (Page 167)

Starting the Dell Diagnostics From Your Hard Drive
Before running the Dell Diagnostics, enter System Setup (see the Entering System Setup ) to review your computer's configuration information, and ensure that
the device you want to test is displayed in System Setup and is active.
The Dell Diagnostics is located on a separate diagnostic utility partition on your hard drive.
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.
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.
4. Use the up- and down-arrow keys to select Diagnostics from the boot menu and then press <Enter>.
5. Press any key to start the Dell Diagnostics from the diagnostics utility partition on your hard drive.
6. Press <Tab> to select Test System and then press <Enter>.
7. At the Dell Diagnostics Main Menu, left-click with the mouse, or press <Tab> and then <Enter>, to select the test you want to run (see Dell Diagnostics
Main Menu ).
8. After all tests have completed, close the test window to return to the Dell Diagnostics Main Menu.
9. Close the Main Menu window to exit the Dell Diagnostics and restart the computer.
Starting the Dell Diagnostics From the Drivers and Utilities Media
Before running the Dell Diagnostics, enter System Setup (see Entering System Setup ) to review your computer's configuration information, and ensure that the
device you want to test is displayed in System Setup and is active.
1. Insert the Drivers and Utilities media into the optical drive.
2. Restart your computer.
3. When the DELL logo appears, press <F12> immediately.
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.
4. When the boot device list appears, use the up- or down- arrow keys to highlight CD/DVD/CD-RW Drive then press <Enter>.
NOTE: The Drivers and Utilities media is optional and may not ship with your computer.
NOTE: The Dell Diagnostics only operate on Dell computers.
NOTE: If your computer does not display a screen image, contact Dell (see Contacting Dell ).
NOTE: Keyboard failure may result when a key is held down for extended periods of time. To avoid possible keyboard failure, press and release <F12>
in even intervals to open the Boot Device Menu.
NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics from your Drivers and Utilities media
(see Starting the Dell Diagnostics From the Drivers and Utilities Media ).
NOTE: It is recommended that you select Test System to run a complete test on your computer. Selecting Test Memory initiates the extended
memory test, which can take up to thirty minutes or more to complete. When the test completes, record the test results and then press any key to
return to the previous menu.
NOTE: Write down any error codes and problem descriptions exactly as they appear and follow the instructions on the screen.
NOTE: Keyboard failure may result when a key is held down for extended periods of time. To avoid possible keyboard failure, press and release <F12>
in even intervals to open the Boot Device Menu.
NOTE: Using the one-time boot menu changes the boot sequence for the current boot only. Upon restart, the computer boots according to the
boot sequence specified in System Setup.