Dell CT975 Laptop User Manual


 
18 Quick Reference Guide
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:
a
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.
NOTE: Before attempting option b, the computer must be powered down completely.
b
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 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, and so on.
During the assessment, answer any questions that appear.
If failures are detected during the Pre-boot System Assessment, write down the error code(s) and
see "Contacting Dell"
in your User’s Guide
.
4
If the Pre-boot System Assessment completes successfully, you will 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 Media
1
Insert the
Drivers and Utilities
Media.
2
Shut down and restart the computer.
When the DELL logo appears, press <F12> immediately.
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.
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
Ty pe
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.