Power Management; Power And Suspend/Resume Button; Sleep Mode - Fujitsu LifeBook UH572 User Manual

Power Management

Your LIFEBOOK Ultrabook has many options and features for conserving battery power. Some of these features are
automatic and need no user intervention. However, others depend on the parameters you set to best suit your
operating conditions, such as those for the display brightness. Internal power management for your LIFEBOOK
Ultrabook may be controlled from settings made in your operating system.
Besides the options available for conserving battery power, there are also some things that you can do to prevent
your battery from running down as quickly. For example, you can create an appropriate power saving profile, put your
LIFEBOOK into Sleep mode when it is not performing an operation, and you can limit the use of high power devices.
As with all mobile, battery powered computers, there is a trade-off between performance and power savings.

Power and Suspend/Resume Button

When your LIFEBOOK is active, the Power and Suspend/Resume button can be used to manually put it into Sleep
mode. Push the Power and Suspend/Resume button when your LIFEBOOK is active, but not actively accessing
anything, and immediately release the button. Your system will enter Sleep mode.
If your LIFEBOOK is suspended, pushing the Power and Suspend/Resume button will return your system to active
operation. You can tell whether or not your system is in Sleep mode by looking at the Power indicator which is part
of the Suspend/Resume button. If the indicator is visible and not flashing, your LIFEBOOK Ultrabook is fully
operational. If the indicator is both visible and flashing, your LIFEBOOK is in Sleep mode. If the indicator is not visible
at all, the power is off or your LIFEBOOK is in Save-to-Disk (Hibernation) mode.

Sleep Mode

Sleep mode saves your LIFEBOOK's system memory contents during periods of inactivity by maintaining power to
critical parts. This mode will turn off the CPU, the display, the hard drive, and all of the other internal components
except those necessary to maintain system memory and allow for restarting.
Your LIFEBOOK Ultrabook can be put in Sleep mode by:
• Pressing the Power/Suspend/Resume button when your system is turned on.
• Clicking the power icon on the lock menu.
• Selecting Sleep from the Windows Shut Down menu.
• Timing out from lack of activity.
36 - Power Management