Dell T5400 Personal Computer User Manual


 
Quick Reference Guide 45
TEST THE KEYBOARD Connect a properly working keyboard to the computer, then
try using the keyboard.
R
UN THE HARDWARE TROUBLESHOOTER See "Restoring Your Operating System"
in your User’s Guide.
Lockups and Software Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
The computer does not start up
CHECK THE DIAGNOSTIC LIGHTS See "Power Lights" on page 27.
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 floppy disk, CD, or DVD.
C
HECK THE SOFTWARE DOCUMENTATION If necessary, uninstall and then reinstall
the program.