Speedstep - Toshiba TECRA A6 Owner's Manual

5 The Power System
5.1.3

SpeedStep

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 enjoy better
performance, while slower speeds conserve more power.
In Windows XP, the processor's performance level depends on the Power Scheme you select
(see 5.1.2 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 standby mode, hibernate mode, turning off the display, and turning off the hard
drive.
For example, the Portable/Laptop mode automatically changes SpeedStep modes
depending on if you are running the computer on AC power or batteries in order to prolong
battery usage while still providing optimal performance.
You can also individually alter and save each of these settings and schemes if desired.
Windows XP automatically chooses the SpeedStep mode to find the most appropriate speed
for your processor according to the Power Scheme you choose and your current system
demands.
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