38 Setting Up and Using Your Computer
To exit from standby mode, press a key on the keyboard or move the mouse.
NOTICE: If your computer loses power while in standby mode, it may lose data.
Windows Vista has a new feature called Hybrid Sleep mode - this saves the data
into a file and also puts the system into standby. If you lose power, the system will
have retained your data on the hard drive and resumes to the same state you left it.
Go to Help and Support and search for hybrid sleep for further information. Hybrid
Sleep provides fast wake if the system is in standby, but also keeps your data safe
by storing it to the hard drive.

Hibernate Mode

Hibernate mode conserves power by copying system data to a reserved area on
the hard drive and then completely turning off the computer. When the
computer exits from hibernate mode, the desktop is restored to the state it
was in before it entered hibernate mode. Windows Vista may mask Hibernate
from the user if Hybrid Sleep is enabled. For additional information, go to
Help and Support and search for hibernate.
To activate hibernate mode immediately (if available):
1
Click
Start
and click the
arrow
.
2
Select
Hibernate
from the list.
To exit from hibernate mode, press the power button. The computer may
take a short time to exit from hibernate mode. Pressing a key on the keyboard
or moving the mouse does not bring the computer out of hibernation,
because the keyboard and the mouse do not function when the computer is in
hibernate mode.
Because hibernate mode requires a special file on your hard drive with enough
disk space to store the contents of the computer memory, Dell creates an
appropriately sized hibernate mode file before shipping the computer to you.
If the computer's hard drive becomes corrupted, Windows Vista recreates the
hibernate file automatically.

Power Plan Properties

You can define standby mode settings, display mode settings, hibernate mode
settings (if available), and other power settings in the Power Plan Properties
window.