User's 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 an optimal power plan
to manage how your computer uses and conserves power so that computer performance can be
balanced with power conservation.
Initiating Sleep and Hibernation
Microsoft Windows has two power-saving states, Sleep and Hibernation.
●
Sleep–The Sleep state is automatically initiated after a period of inactivity when running on battery
power or on external power. Your work is saved to memory, allowing you to resume your work
very quickly. You can also initiate Sleep manually. For more information, see
Initiating and exiting
Sleep on page 47.
●
Hibernation–The Hibernation state is automatically initiated if the battery reaches a critical level. In
the Hibernation state, your work is saved to a hibernation file and the computer powers down.
NOTE: If you want to initiate Hibernation manually, you can enable Hibernation using Power
Options. For more information, see
Enabling and exiting Hibernation (select models only)
on page 48.
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 Sleep 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.
Initiating and exiting Sleep
With the computer on, you can initiate Sleep in the following ways:
●
Briefly press the power button.
●
Swipe from the right edge of the TouchPad or touch screen to display the charms, tap
Settings, tap the Power icon, and then tap Sleep.
– or –
From the Start screen, point to the upper-right or lower-right corner of the screen. When
the charms list opens, select Settings, select the Power icon, and then select Sleep.
ENWW
Initiating Sleep and Hibernation
47