HP Pavilion 10 TouchSmart 10-e010nr Notebook PC - Manual (Page 50)

When you connect the computer to external AC power:
● The battery begins to charge.
● The screen brightness increases.
● The power meter icon on the Windows desktop changes appearance.
When you disconnect external AC power, the following events occur:
● The computer switches to battery power.
● The screen brightness automatically decreases to save battery life.
● The power meter icon on the Windows desktop changes appearance.
Troubleshooting power problems
Test the AC adapter if the computer exhibits any of the following symptoms when it is connected to
AC power:
● The computer does not turn on.
● The display does not turn on.
● The power lights are off.
To test the AC adapter:
1. Shut down the computer.
2. Connect the AC adapter to the computer, and then plug it into an AC outlet.
3. Turn on the computer.
● If the power lights turn on, the AC adapter is working properly.
● If the power lights remain off, check the connection from the AC adapter to the computer
and the connection from the AC adapter to the AC outlet to be sure that the connections
are secure.
● If the connections are secure and the power lights remain off, the AC adapter is not
functioning and should be replaced.
Contact support for information on obtaining a replacement AC power adapter.
Shutting down (turning off) the computer
CAUTION: Unsaved information is lost when the computer shuts down. Be sure to save your work
before shutting down the computer.
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 or video
port
● When the computer will be unused and disconnected from external power for an extended
period
42 Chapter 6 Managing power