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- Posted on
- Phil Schuman
January 27, 2006, 1:12 pm
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Recently, I've noticed that when I right-click on My Computer, while at an
and look at the Properties, the current speed seems to always be 1.20 Ghz.
(The display shoiws the model as 1200Hhz, with a 2nd line should be the
The fan does not turn on, which leads me to believe it is not really running
at 1.20 Ghz,
since the Task Manager graph only shows 1% usage...
The Power Properties settings are for "portable/laptop",
which should be "Adaptive" for both AC and battery,
and would usually show 789Mhz...
Wondering if anyone else has noticed this change,
or if something in XP has recently changed the way the Power Meter is
On a Windows XP-based computer, control of processor performance states is
inherent. Four modes of operation, known as processor policies, are used to
control processor performance states. The processor policies used by Windows
High Always runs at the highest performance state
Adaptive Performance state chosen based on CPU demand
Degrade Starts at the lowest performance state, and then uses linear
performance reduction (stop clock throttling) as battery
Constant Always runs at the lowest performance state
These processor policies are directly tied to the power schemes available in
the Power Options tool in Control Panel. The following power schemes are
provided with Windows XP. Note that additional power schemes may be provided
by your system vendor.
Power Scheme AC Power DC Power
Home/Office Desk High Adaptive
Portable/Laptop Adaptive Adaptive
Presentation Adaptive Degrade
Always On High High
Minimal Power Adaptive Adaptive
Max Battery Adaptive Degrade
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