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24 Solving Problems
Keyboard Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the
Product Information Guide.
Lockups and Software Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the
Product Information Guide.
The computer does not start up
The computer stops responding
NOTICE: You might lose data if you are unable to perform an operating system shutdown.
CHECK THE KEYBOARD CABLE —
• Ensure that the keyboard cable is firmly connected to the computer.
• Shut down the computer (see page 47), reconnect the keyboard cable as shown on the setup diagram for
your computer, and then restart the computer.
• Check the cable connector for bent or broken pins and for damaged or frayed cables. Straighten bent
pins.
• Remove keyboard extension cables and connect the keyboard directly to the computer.
TEST THE KEYBOARD — Connect a properly working keyboard to the computer, and try using the
keyboard.
RUN THE HARDWARE TROUBLESHOOTER — See page 46.
CHECK THE DIAGNOSTIC LIGHTS — See page 35.
ENSURE THAT THE POWER CABLE IS FIRMLY CONNECTED TO THE COMPUTER AND TO THE
E
LECTRICAL OUTLET
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.