Dell Vostro 420 (Late 2008) - Manual (Page 15)

Troubleshooting
15
9 Close the Main Menu window to exit the Dell Diagnostics and restart the
computer.
Starting the Dell Diagnostics From the Drivers and Utilities Disc
Before running the Dell Diagnostics, enter the system setup program (see
"System Setup Program" on page 129) to review your computer’s
configuration information, and ensure that the device you want to test is
displayed in the system setup program and is active.
1 Insert the Drivers and Utilities disc into the optical drive.
2 Restart your computer.
3 When the DELL logo appears, press immediately.
NOTE:
Keyboard failure may result when a key is held down for extended
periods of time. To avoid possible keyboard failure, press and release in
even intervals to open the
Boot Device Menu.
If you wait too long and the operating system logo appears, continue to
wait until you see the Microsoft Windows desktop, and 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 .
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 the system setup program.
5 Press any key to confirm that you want to start from the CD/DVD.
If you wait too long and the operating system logo appears, continue to
wait until you see the Microsoft Windows desktop, and then shut down
your computer and try again.
6 Type 1 to Run the 32 Bit Dell Diagnostics.
7 At the Dell Diagnostics Menu, type 1 to select Dell 32-bit Diagnostics for
Resource CD (graphical user interface).
8 Press to select Test System and then press .