Dell OptiPlex GX520 - Manual (Page 197)

Lockups and Software Problems
The computer does not start up
The computer stops responding
A program stops responding
A program crashes repeatedly
A solid blue screen appears
Check for software and hardware conflicts
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
NOTE: If you installed a unique image on your computer or if you had to reinstall your operating system, run the DSS utility. DSS is available on your
Drivers and Utilities CD and at support.dell.com.
NOTE: You must use Microsoft ® Windows ® XP Service Pack 1 or later when you reinstall Windows XP.
Check the Diagnostic Lights
Ensure that the power cable is firmly connected to the computer and to the electrical outlet
NOTICE: You might lose data if you are unable to perform an operating system shutdown.
Turn the computer off — If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold
the power button for at least 8 to 10 seconds until the computer turns off. Then restart your computer.
End the program —
1. Press <Ctrl><Shift><Esc> simultaneously.
2. Click Applications.
3. Click the program that is no longer responding.
4. Click End Task.
NOTE: Software usually includes installation instructions in its documentation or on a floppy disk or CD.
Check the software documentation — If necessary, uninstall and then reinstall the program.
Ensure that the original installed version of Windows XP is installed on your computer
Turn the computer off — If you are unable to get a response by pressing a key on your keyboard or moving your mouse, press and hold
the power button for at least 8 to 10 seconds until the computer turns off. Then restart your computer.