CPU frequency scaling on Celeron M 1.4 GHz?

[David C. Uhrig]

On Jan 18, 2008 10:04 AM, Matthias Andersson <matthias.andersson at kotikone.fi>
wrote:

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> The gnome-applet says my hardware doesn't either support CPU frequency
> scaling or my hardware may be misconfigured.
>
> Which one is correct?
>
> //Matthias
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Hi Matthias,

    That depends a lot on how old the processor is. If you can get a model
number, then you'll have a better chance at finding out if the processor
does support it. Intel uses SpeedStep [1] to do it's frequency scaling.
Since the Celeron M is based on the Pentium M microarchitecture [2], it
looks like it should have SpeedStep. If it it is a Mobile Celeron instead of
a Celeron M, then I don't think it has any SpeedStep on it. Check out the
list of Celeron CPUs at Wikipedia for more info [3].

[1] http://en.wikipedia.org/wiki/SpeedStep
[2] http://en.wikipedia.org/wiki/Pentium_M
[3] http://en.wikipedia.org/wiki/List_of_Intel_Celeron_microprocessors

-David C. Uhrig
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