Service Manual

Troubleshooting 23
then try using the keyboard.
R
UN THE HARDWARE TROUBLESHOOTER — See "Hardware Troubleshooter" on
page 12.
Lockups and Software Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
The computer does not start up
CHECK THE DIAGNOSTIC LIGHTS — See "Power Lights" on page 9.
E
NSURE THAT THE POWER CABLE IS FIRMLY CONNECTED TO THE COMPUTER AND TO
THE ELECTRICAL OUTLET
The computer stops responding
NOTICE: You may lose data if you are unable to perform an operating system
shutdown.
T
URN 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), and then restart your computer.
A program stops responding
END THE PROGRAM —
1 Press <Ctrl><Shift><Esc> simultaneously to access the Task Manager.
2 Click the Applications tab.
3 Click to select the program that is no longer responding.
4 Click End Task .
A program crashes repeatedly
NOTE: Most software includes installation instructions in its documentation or on a
CD or DVD.
C
HECK THE SOFTWARE DOCUMENTATION — If necessary, uninstall and then reinstall
the program.