Re: cpufreq on VIA C7

From: Harald Schmalzbauer <h.schmalzbauer_at_omnilan.de>
Date: Sun, 02 Aug 2009 13:35:28 +0200
Uwe Grohnwaldt schrieb am 01.08.2009 01:49 (localtime):
> Hi,
> 
> disabling cpufreq in the kernel configfile works fine. after that it 
> looks fine:
> dev.cpu.0.freq_levels: 2000/20000 1000/10000 800/8000 400/4000

This is done by throttling. Unfortunately it doesn't safe power for me, 
at least on my E8400 the power consumption raises about a hardly 
measureable bit.
If I'm right the C7 (Eden V4, Esther in my case) supports enhanced speed 
stepping. I can enable it in my BIOS (along with SpeedStep1) which 
should enable the cpu to operate with 0.884 Volt. This would safe 
enourmous power.
Unfortunately I can't hack the est driver to attach to C7.
Any volunteers? :)

Best regards,

-Harry

P.S.: I'll do some measurings regarding the throttling on the C7 to 
verify disabling throttling is the right thing ;)


Received on Sun Aug 02 2009 - 09:50:56 UTC

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