Using Power Saving Modes; Using Normal Mode - Sony VAIO PCG-SR21K User Manual

Using your notebook

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 7 percent, regardless of the power
management setting you select.


If the battery level falls to 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.

Using 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.
Using System Idle mode
This mode is convenient if you do not need to use your computer for a short period. The hard disk and the
video display enter a low power state and the CPU stops. The power indicator light is amber in this mode.
To activate System Idle mode, proceed as follows:
Press <Fn>+<S>. You can also enter System Idle mode by using the PowerPanel utility.
To return to Normal mode, proceed as follows:
Press any key.
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