User's Guide

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 do not turn on.
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 about 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 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
Although you can turn off the computer with the power button, the recommended procedure is to use
the Windows Shut down command.
NOTE: If the computer is in the Sleep state or in Hibernation, first exit Sleep or Hibernation by
briefly pressing the power button.
1. Save your work and close all open programs.
2. From the Start screen or the Windows desktop, point to the upper-right or lower-right corner of
the screen to reveal the charms.
3. Click Settings, click the Power icon, and then click Shut down.
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Shutting down (turning off) the computer 35