Testing An Ac Adapter; Shutting Down The Computer - HP ProBook 5320m - Notebook PC User Manual

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 and external
power.
●
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 to the computer and to an AC outlet.
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.

Shutting down the computer

CAUTION:
The Shutdown 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
of time
To shut down the computer, follow these steps:
NOTE: If the computer is in the Suspend state or in Hibernation, you must first exit Suspend or
Hibernation before shutdown is possible.
1. Save your work and close all open programs.
2. Select Computer > Shutdown > Shutdown.
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 and hold the power button for at least 5 seconds.
● Disconnect the computer from external power and remove the battery.
40 Chapter 4 Power management
Unsaved information will be lost when the computer is shut down.