34 Power Management
www.dell.com | support.dell.com
To exit standby mode, press the power button or open the display depending on how you set the
options on the
Advanced
tab. For more information on the
Advanced
tab in the Power
Management Wizard, see page35. You cannot make the computer exit standby mode by pressing a
key or touching the touch pad.

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 hibernate mode, it returns to
the same operating state it was in before entering hibernate mode.
NOTICE: You cannot remove devices or USB mobile docking stations while your computer is in
hibernate mode.
Your computer enters hibernate mode if the battery charge level becomes critically low.
To manually enter hibernate mode:
•
C
lick the
Start
button, click
Turn off computer
, press and hold <Shift>, and then click
Hibernate
.
or
• Depending on how you set the power management options on the
Advanced
tab (see
page 35) in the
Power Options Properties
window, use one of the following methods to enter
hibernate mode:
– Press the power button.
– Close the display.
– Press <Fn><Esc>.
NOTE: Some PC Cards may not operate correctly after the computer exits hibernate mode. Remove and
reinsert the card, or simply restart (reboot) your computer.
To exit hibernate mode, press the power button. The computer may take a short time to exit
hibernate mode. You cannot make the computer exit hibernate mode by pressing a key or touching
the touch pad. For more information on hibernate mode, see the documentation that came with
your operating system.
Power Options Properties
The
Power Options Properties
window helps you to manage power consumption and monitor
battery charge status. To access the Windows
Power Options Properties
window, click the
Start
button
→
Control Panel
→
Performance and Maintenance
→
Power Options
.

Power Schemes Tab

The
Power schemes
drop-down menu displays the selected preset power scheme. Keep the default
Portable/Laptop
power scheme to maximize battery power.