Fujitsu LifeBook E8420 User Manual download pdf (Page 65)

- Power Management

Power Management

Your Fujitsu LifeBook notebook has many options and features for conserving battery power. Some of

these features are automatic and need no user intervention, such as those for the internal modem. 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 notebook may be controlled from settings made

in your operating system, pre-bundled power management application, or from settings made in BIOS

setup utility.

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 notebook 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/Suspend/Resume Button

When your notebook is active, the Power/Suspend/Resume button can be used to manually put the

notebook into Sleep mode. Push the Power/Suspend/Resume button when the notebook is active, but not

actively accessing anything, and immediately release the button. You will hear two short beeps and the

system will enter Sleep mode.

If your notebook is suspended, pushing the Power/Suspend/Resume button returns your notebook to

active operation. You can tell whether the system is Suspended by looking at the Power indicator. If the

indicator is visible and not flashing, your notebook is fully operational. If the indicator is visible and

flashing, your notebook is in Sleep mode. If the indicator is not visible, the power is off or your notebook

is in Hibernation mode. (See Hibernation Feature)

PLEASE NOTE THAT “STANDBY MODE” IN WINDOWS XP IS KNOWN AS “SLEEP MODE” IN WINDOWS

ISTA. THE TWO TERMS ARE INTERCHANGEABLE. FOR PURPOSES OF THIS DOCUMENT, “SLEEP MODE”

WILL BE USED.

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Fujitsu LifeBook E8420 User Manual Page 65