Bedienungsanleitung Lenovo ThinkPad P72 (Seite 94 von 156) (Englisch)

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The troubleshooting information or the diagnostic programs might tell you that you need additional or

updated device drivers or other software. You can get the latest technical information and download device

drivers and updates from the Lenovo Support Web site at:

https://support.lenovo.com

For additional information, see the help system of the program.

Troubleshooting

If your computer has an error, it typically displays a message or an error code, or makes a beep when you

turn it on. When you experience a problem, see the corresponding symptom and solution in this topic to try

to solve the problem by yourself.

Computer stops responding

Print these instructions now and keep them with your computer for reference later.

Problem: My computer is unresponsive (I cannot use the ThinkPad pointing device or the keyboard).

Solution: Do the following:

1. Press and hold the power button until the computer turns off. If you cannot turn off the computer by

pressing the power button and remove the ac power adapter. After the computer is turned off, reconnect

the ac power adapter and restart the computer by pressing the power button. If the computer does not

turn on, continue with step 2.

2. While the computer is turned off, remove all power sources from the computer. Plug in the ac power

adapter. If the computer does not turn back on, continue with step 3.

3. While the computer is off, remove all sources of power. Remove all external devices that are attached to

your computer (keyboard, mouse, printer, scanner, and so on). Repeat step 2. If step 2 is unsuccessful,

continue with step 4.

Note: The following steps involve removing static sensitive components from your computer. Make sure

that you are properly grounded and remove all sources of power attached to the computer. If you are

uncomfortable or unsure about removing components, call the Customer Support Center for assistance.

4. While the computer is off, remove all sources of power and external hardware. Remove any non-original

memory module added to your computer. After removing the extra memory module and reinstalling the

original memory module, repeat step 2. If the computer still does not turn on, consult the user manual for

other customer-replaceable components that are attached to your computer.

If the computer still does not start up, call the Customer Support Center and a Customer Support Specialist

will assist you.

Spills on the keyboard

Problem: I spill something on the computer.

Solution: Because most liquids conduct electricity, liquid spilled on the keyboard could create numerous

short circuits and damage your computer. To solve the problem, do the following:

1. Ensure that no liquid creates a short circuit between you and the ac power adapter (if in use).

2. Carefully unplug the ac power adapter immediately.

3. Turn off the computer immediately. The more quickly you stop the current from passing through the

computer the more likely you will reduce damage from short circuits.

P72 User Guide

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Lenovo ThinkPad P72 Seite 94

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