Testing an AC adapter
Test the AC adapter if the computer exhibits any of the following symptoms:
●
The computer will not turn on when connected to the AC adapter.
●
The display does not turn on when the computer is connected to the AC adapter.
●
The power light is off when the computer is connected to the AC adapter.
To test the AC adapter:
1. Remove the battery from the computer.
2. Connect the AC adapter.
3. Turn on the computer.
●
If the power light turns on, the AC adapter is functioning properly.
●
If the power light remains off, the AC adapter is not functioning and should be replaced.
Contact technical support for information on obtaining a replacement AC power adapter by
selecting Start > Help and Support > Contact support.
Shutting down the computer
CAUTION: Unsaved information will be lost when the computer is shut down.
The Shut Down command closes all open programs, including the operating system, and then turns off
the display and computer.
Shut down the computer under any of the following conditions:
●
When you need to replace the battery or access components inside the computer
●
When you are connecting an external hardware device that does not connect to a USB port
●
When the computer will be unused and disconnected from external power for an extended period
To shut down the computer, follow these steps:
NOTE: If the computer is in the Sleep state or in Hibernation, you must first exit Sleep or Hibernation
before shutdown is possible.
1. Save your work and close all open programs.
2. Click Start, and then click the arrow next to the Lock button.
3. Click Shut Down.
If the computer is unresponsive and you are unable to use the preceding shutdown procedures, try the
following emergency procedures in the sequence provided:
●
Press ctrl+alt+delete, and then slide the power switch.
●
Slide and hold the power switch for at least 5 seconds.
●
Disconnect the computer from external power and remove the battery.
24 Chapter 2 Power management
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