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56 Troubleshooting
USB Keyboard
CHECK THE KEYBOARD CABLE —
• Ensure that the keyboard cable is firmly connected to the computer.
• Shut down the computer, reconnect the keyboard cable as shown on the setup
diagram for your computer, and then restart the computer.
• 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.
Any Keyboard
TEST THE KEYBOARD — Connect or pair a properly working keyboard to the
computer, then try using the keyboard. See "Re-Syncing Your Optional Wireless
Mouse or Keyboard with Your Computer" on page 44.
R
UN THE HARDWARE TROUBLESHOOTER — See "Troubleshooting Software and
Hardware Problems in the Microsoft
®
Windows
®
Vista™ Operating Systems" on
page 78.
S
EE YOUR KEYBOARD DOCUMENTATION — If your keyboard has documentation, see
if it has special troubleshooting suggestions or recommendations.
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
ENSURE 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.