Dell Precision T3400 (Late 2007) - Manual (Page 119)

Troubleshooting
119
• Ensure that the cable is not damaged or frayed and check cable connectors for bent or
broken pins. Straighten any bent pins.
• Remove any keyboard extension cables and connect the keyboard directly to the
computer.
T EST THE KEYBOARD — Connect a properly working keyboard to the computer, then
try using the keyboard.
R UN THE H ARDWARE T ROUBLESHOOTER — See "Hardware Troubleshooter" on
page 107.
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
C HECK THE DIAGNOSTIC LIGHTS — See "Diagnostic Lights" on page 100.
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
E ND 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.