Power Management; Suspend/Resume Button - Fujitsu LifeBook P Series Manual

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 Suspend 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 LifeBook notebook is active, the
Power/Suspend/Resume button can be used to
manually put your notebook into Suspend mode.
Push the Power/Suspend/Resume button when
your notebook is active, but not actively accessing
anything, and immediately release the button. You
will hear two short beeps and your system will
enter Suspend mode.
If your LifeBook 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
Suspend mode. If the indicator is not visible, the
power is off or your notebook is in Hibernation
mode. (See Hibernation Feature)
U s i n g Yo u r N o t e b o o k
SUSPEND MODE
Suspend or Standby mode in Windows saves the
contents of your LifeBook notebook's system
memory 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 notebook can be put in
Suspend mode by:
• Pressing the Power/Suspend/Resume button
when your system is turned on.
• Selecting Standby from the Windows Shut
Down menu.
• Timing out from lack of activity.
• Allowing the battery to reach the Dead Battery
Warning condition.
Your notebook's system memory typically stores
the file on which you are working, open
application information, and any other data
required to support operations in progress. When
you resume operation from Suspend mode, your
notebook will return to the point where it left off.
You must use the Power/Suspend/Resume
button to resume operation, and there must be
an adequate power source available, or your
notebook will not resume.
a If you are running your LifeBook notebook
on battery power, be aware that the battery
continues to discharge while your
notebook is in Suspend mode, though not
as fast as when fully operational.
a Disabling the Power/Suspend/Resume
button prevents it from being used to put
your LifeBook notebook in Suspend or
Hibernation (Save-to-Disk) mode. The
resume function of the button cannot be
disabled.
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