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Tectu

Member

Registered: 2011-11-10

Posts: 29

Notebook Fan 50% of power consumption

Hello Folks,

I have a Lenovo T410, without dedicated GPU, it uses the i5's integrated Intel GPU.
My fan keeps to always be above 2'500 rpm and goes up to 4'500 rpm very often (playing movie etc.). Powertop 2.0 shows that the power consumption of the notbook is about 13 to 17W, which is good in my opinion. But it says that the fan takes between 2.5 and 8.5W... Can this be right? This would mean that the fan takes half of the whole power consumtion of the notebook?

I didn't install any power management tools like the laptop-power-tools package or similar.

What would be the best way to handle this? I wouldn't like to spin down the fan manually. Maybe it is just always spinning to fast?

~ Tectu

Last edited by Tectu (2012-06-17 17:22:17)

cfr

Member

From: Cymru

Registered: 2011-11-27

Posts: 7,178

Re: Notebook Fan 50% of power consumption

What's the output from sensors, say? Is it hot or is it spinning fast even when the laptop is cool?

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teateawhy

Member

From: GER

Registered: 2012-03-05

Posts: 1,138

Website

Re: Notebook Fan 50% of power consumption

You need the lm_sensors package for it.