Wipro Ego Series, User Manual

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Intel® SpeedStep™ Technology
You Notebook PC is equipped with an Intel Mobile Processors with Intel
SpeedStep technology, which allows you to customize high performance
computing on your computer. When the computer is connected to the AC
adapter, it can run the most complex business and Internet applications with
maximum speed of processor. When the computer is powered by a battery, the
processor drops to a lower frequency (such as degrading to 600MHz by
changing the bus ratios and voltage), conserving battery life while maintaining
a high level of performance. Manual override allows you to boost the frequency
back to the high frequency when on battery, so that you can customize the
system performance to meet your needs.
Using Intel SpeedStep Technology
Since Windows XP has the Intel SpeedStep technology driver built into the
system, the processor performance is controlled under the Power Scheme setting
in the standard power options (see page 4-7). No additional program or interface
is employed to set the policy. The following table describes the policy used in
Windows XP.
Adaptive: Performance state chosen based on CPU demand.
Degrade: Starts at lowest performance state, then uses linear performance reduction
(stop clock throttling) as battery discharges.
None: Always runs at highest performance state.
Power Scheme AC Power Battery Power
Home/Office Desk None Adaptive
Portable/Laptop Adaptive Adaptive
Presentation Adaptive Degrade
Always On None None
Minimal Power Management Adaptive Adaptive
Max Battery Adaptive Degrade