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From: Phillip Susi <psusi@cfl.rr.com>
To: mihn <mihnsk@gmail.com>
Cc: linux-acpi@vger.kernel.org
Subject: Re: cpu voltage change question
Date: Thu, 27 Jan 2011 11:12:28 -0500	[thread overview]
Message-ID: <4D41996C.1060600@cfl.rr.com> (raw)
In-Reply-To: <1296119453.4653.1.camel@genix>

On 1/27/2011 4:10 AM, mihn wrote:
> Hi,
> 
> I want to change voltage and frequency seperately.
> With cpu-freq, i can change frequency, but cannot change voltage AFAIK.

The voltage is controlled by the platform and should already be set to a
level appropriate for that frequency.  AFAIK, recent intel cpus have
MSRs that configure the voltage for each P-state, but these are set up
by the bios and shouldn't need changed.

  reply	other threads:[~2011-01-27 16:12 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-27  9:10 cpu voltage change question mihn
2011-01-27 16:12 ` Phillip Susi [this message]
2011-01-27 18:31   ` Henrique de Moraes Holschuh
2011-01-27 18:39   ` mihn leigh
2011-01-27 18:47     ` Henrique de Moraes Holschuh
     [not found]     ` <AANLkTim=ZGBU8AD9_ub5gAL8YHn6EDoORsLvMc6M-3aU@mail.gmail.com>
2011-01-28  9:10       ` mihn
2011-01-28 19:46         ` Phillip Susi

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