HP pavilion n5400 Manuale Di Servizio

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Traveling with Your Computer 
Managing Power Consumption 
50 Reference 
Guide 
Managing Power Consumption 
When you are not using your computer, you will want to maximize battery operating 
time without compromising performance. It is not necessary to turn the computer off in 
order to reduce power consumption and extend battery life. 
Windows uses Advanced Configuration and Power Interface (ACPI) to provide manual 
and automated tools for reducing power consumption.  
•  You can set power management options to occur automatically, based on timeout 
values entered.  
•  You can also invoke power management options manually at any time by pressing the 
appropriate key. See “To use manual power management,” below. 
To use automated power management 
System hibernation, standby, monitor, and hard disk timeouts automatically occur based 
on the values set under Power Options in Control Panel. The following tables describe 
the power management timeouts you can set in Windows. 
System hibernation 
Action 
Saves current session to disk, then shuts 
down. Provides maximum power savings 
while still allowing you to recover the 
current session. 
When 
After being in standby for the specified 
interval.  
-OR- 
Critically low battery. 
Resume 
Press the blue standby button to recover 
your current session. This may take 
several minutes. 
When battery power reaches a critically low level, see “To respond to a low-battery 
warning” on page 55.