User's Manual

Keyboard Problems
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Lockups and Software Problems
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The computer does not start up
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The computer stops responding
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A program stops responding
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If you have problems with a Dell-providedIEEE1394device—
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IfyouhaveproblemswithanIEEE1394devicenotprovidedbyDell—
Contact Dell (see Contacting Dell) or the IEEE 1394 device manufacturer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
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Checkthekeyboardcable— 
l Ensure that the keyboard cable is firmly connected to the computer.
l Shut down the computer (see Turn Off Your Computer), reconnect the keyboard cable as shown in the Quick Reference Guide for your
computer, and then restart the computer.
l Check the cable connector for bent or broken pins and for damaged or frayed cables. Straighten bent pins.
l Remove keyboard extension cables and connect the keyboard directly to the computer.
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Testthekeyboard— Connect a properly working keyboard to the computer, and try using the keyboard. If the new keyboard works, the
original keyboard is faulty.
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Check for Software and Hardware Conflicts — See Resolving Software and Hardware Incompatibilities.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
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Check the Diagnostic Lights —
See Diagnostic Lights
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Ensure that the power cable is firmly connected to the computer and to the electrical outlet
NOTICE: You might lose data if you are unable to perform an operating system shutdown.
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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.
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Endtheprogram—