Sony PCG-F570 Manual

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VAIO® Notebook User Guide
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Using Power Saving Modes
When you use a battery as the source of power for your computer, you 
can take advantage of power management settings to conserve battery 
life. In addition to the normal operating mode, which allows you to turn 
off specific devices, your computer has three distinct power saving 
modes: System Idle, System Suspend, and System Hibernation. When 
using battery power, you should be aware that the computer 
automatically enters System Hibernation mode when the remaining 
battery charge drops below 5 percent, regardless of the power 
management setting you select.
Normal Mode
This is the normal state of your computer when it is in use. The green 
power indicator light is on in this mode. To save power, you can turn off a 
specific device such as the LCD or the hard disk.
System Idle Mode
This mode is convenient if you do not need to use your computer for a 
brief period. The hard disk and video display enter a low power state, 
and the CPU clock and processor stop. The power indicator light is umber 
in this mode.
To activate System Idle mode
Press Fn+S, or use the PowerPanel utility. 
To return to normal mode 
Press any key.
If the battery level falls below 10 percent, you should either attach the AC adapter to 
recharge the battery or shut down your computer and insert a fully charged battery.