Managing Power; Using Sleep Or Hibernation - HP 455 User Manual

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 Sleep or Hibernation

Microsoft Windows has two power-saving states, Sleep and Hibernation.
When Sleep 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 Sleep state for an extended
period or if the battery reaches a critical battery level while in the Sleep 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:
playback functionality, or loss of information, do not initiate Sleep 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 Sleep state or in Hibernation.
34 Chapter 6 Managing power
To reduce the risk of possible audio and video degradation, loss of audio or video