User Guide - Windows 7
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.
HP CoolSense
HP CoolSense detects when the computer is not on a horizontal surface and adjusts
performance and fan settings to keep the surface temperature of your computer at the optimum level
of comfort.
When HP CoolSense is off, the position of the computer is not detected and the performance and fan
options remain at the factory setting. As a result, the surface temperature of the computer may be
higher than it would be with HP CoolSense on.
To turn CoolSense off or on, follow these steps:
1. Select Start > Control Panel > Hardware and Sound > HP CoolSense.
2. Select On or Off.
Shutting down the computer
CAUTION: Unsaved information is lost when the computer shuts 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 or video
port
●
When the computer will be unused and disconnected from external power for an extended
period
Although you can shut down 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, you must first exit Sleep or
Hibernation before shutdown is possible.
1. Save your work and close all open programs.
2. Select Start > Shut down.
40 Chapter 6 Managing power