Dell Vostro 1400 Owner's Manual page 116

NOTE:
If your computer cannot display a screen image, see "Contacting Dell" on
page 201.
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 Start the Dell Diagnostics in one of the following two ways.
NOTE:
wait until you see the Microsoft
computer and try again.
– When the DELL™ logo appears, press <F12> immediately. Select
Diagnostics from the boot menu and press <Enter>.
NOTE:
powered down completely.
– Press and hold the <Fn> key while powering the computer on.
NOTE:
been found, run the Dell Diagnostics from the Drivers and Utilities media.
The computer runs the Pre-boot System Assessment (PSA), a series of
initial tests of your system board, keyboard, display, memory, hard drive,
etc.
During the assessment, answer any questions that appear.
• If a failures are detected, the computer stops and beeps. To stop the
assessment and restart the computer, press <n>; 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 "Contacting Dell" on
page 201).
If the Pre-boot System Assessment completes successfully, you receive the
message Booting Dell Diagnostic Utility Partition.
Press any key to continue.
4 Press any key to start the Dell Diagnostics from the diagnostics utility
partition on your hard drive.
116
Troubleshooting
If you wait too long and the operating system logo appears, continue to
Before attempting the following option, the computer must be
If you see a message stating that no diagnostics utility partition has
® ®
Windows desktop; then, shut down your