Operation Manual

Chapter 4 The Power System
4-4
4.1.3.3 Create a power plan
Besides three preset power plans offered in Windows 7, you can also customize
your own power plan. Select Create a power plan on the left pane of the Power
Options window to begin configuring your power settings.
4.1.4 Speed Step
Your notebook is equipped with SpeedStep technology to better manage power
consumption. It changes the processor speed to find the best balance between your
computing performance and power consumption needs. Higher speeds bring better
performance, but the slower speed conserves more power.
In Windows 7, the processor’s performance level depends on the Power Scheme
you select (see 4.1.3 Power Options Properties). You do not need to make any
further adjustments to set the performance level. Each preset power scheme has
different time-out settings for entering Sleep Mode, Hibernate Mode, shutting down
the display, or turning off the hard drive.
For example, the Windows 7 automatically changes SpeedStep Modes depending
on running the AC power or batteries in order to prolong the battery usage while still
providing optimal performance. Choose from the following three power plans that
describe the desired relationship between power and performance.
Windows 7 automatically chooses the Speed Step Mode to find the most
appropriate speed for your processor according to the type of plan you choose
and your current system demands.