HP 655 Notebook-PC - Manual (Page 41)

6 Managing power
Your computer can operate on either battery power or external power. When the computer is only
running on battery power and an AC power source is not available to charge the battery, it is
important to monitor and conserve the battery charge. Your computer supports power plans to
manage how your computer uses and conserves power so that you can balance computer
performance with power conservation.
Using Suspend or Hibernation
The computer has two power-saving states enabled at the factory: Suspend and Hibernation
When Suspend is initiated, the screen clears, and your work is saved to memory, allowing you to
resume your work faster than when you exit Hibernation. If the computer is in the Suspend state for
an extended period or if the battery reaches a critical battery level while in the Suspend state, the
computer initiates Hibernation.
In the Hibernation state, your work is saved to a hibernation file on the hard drive and the computer
turns off.
CAUTION: To reduce the risk of possible audio and video degradation, loss of audio or video
playback functionality, or loss of information, do not initiate Suspend or Hibernation while reading
from or writing to a disc or an external media card.
NOTE: You cannot initiate any type of networking connection or perform any computer functions
while the computer is in the Suspend state or in Hibernation.
Initiating and exiting Suspend
The system is set at the factory to initiate Suspend after a specific period of inactivity, depending on
whether the computer is running on battery power or on external power.
Power settings and timeouts can be changed using Power Management in Control Center.
With the computer on, you can initiate Suspend in any of the following ways:
● Briefly press the power button.
● Close the display.
● Select Computer > Shutdown > Suspend.
● Click the Power icon, located on the far right of the taskbar, and then click Suspend.
To exit Suspend:
● Briefly press the power button.
● If the display is closed, open the display.
● Press a key on the keyboard.
● Tap or swipe the TouchPad.
When the computer exits Suspend, the power lights turn on and the computer displays the screen as
it was when you stopped working.
Using Suspend or Hibernation 31