Toshiba Satellite U840 - Manual (Page 61)

Low battery automat-
ic Hibernation Mode
*1
When battery power is exhausted to the point
that computer operation cannot be continued, the
system automatically enters Hibernation Mode
and shuts itself down. This can be specified in
the Power Options.
Heat dispersal *1 To protect against overheating, the processor
has an internal temperature sensor so that, if the
computer's internal temperature rises to a certain
level, the cooling fan is turned on or the
processing speed is lowered. This can be
specified in the Power Options.
Hibernation Mode This feature lets you turn off the power to the
computer without exiting from your software. The
contents of main memory are automatically
saved to the Hard Disk Drive so that when you
next turn the power on again, you can continue
working right where you left off. Refer to the
Turning off the power section in Chapter 1,
Getting Started, for more details.
Sleep Mode If you have to interrupt your work, you can use
this feature to allow you to turn off power to the
computer without exiting from your software.
Data is maintained in the computer's main
memory so that when you next turn on the
power, you can continue working right where you
left off.
USB Wakeup function This function restores the computer from Sleep
Mode depending on the external devices
connected to the USB ports.
For example, if a mouse or USB keyboard is
connected to a USB port, clicking the mouse
button or pressing the keyboard will wakeup the
computer.
TOSHIBA PC Health
Monitor The TOSHIBA PC Health Monitor application
proactively monitors a number of system
functions such as power consumption, battery
health and system cooling, informing you of
significant system conditions. This application
recognizes the system and individual component
serial numbers and will track specific activities
related to their usage.
Using the TOSHIBA Sleep Utility
The TOSHIBA Sleep Utility is used for changing settings of the following
function(s):
Satellite U840/U800 Series
User's Manual 4-7