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Date:      Sun, 17 Jul 2016 07:36:09 +0800
From:      Yubin Ruan <ablacktshirt@gmail.com>
To:        Polytropon <freebsd@edvax.de>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: High CPU temperature and high fans level
Message-ID:  <578AC4E9.7080108@gmail.com>
In-Reply-To: <20160717002508.591a61ce.freebsd@edvax.de>
References:  <CAO%2BPfDe_Bs=OyN39UxKpSGt1RnCKiYxAOFCW5P=VtmYmmtkGuw@mail.gmail.com> <20160717002508.591a61ce.freebsd@edvax.de>

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On 2016年07月17日 06:25, Polytropon wrote:
> On Sun, 17 Jul 2016 00:06:07 +0200, David Demelier wrote:
>> Hello,
>>
>> I was trying FreeBSD 10.3 on my laptop (hp probook 4510s) and was surprised
>> to see high CPU temperature and fans running high.
>>
>> No apps running, I get a temperature of 57C in dev.cpu.x.temperature and
>> fans run high (not able to get rpms).
>>
>> On a 4.6.3 Linux distro I get an average of 48C and fans are quite low.
>>
>> Both tests were kept in tty. No Xorg running just a boot and user login in
>> console.
>>
>> Do you have any clue?
>
> Did you enable powerd? It can slow down the CPU when the system
> is idle, and increase the CPU speed when needed. This should have
> an effect on CPU temperature and fan speed.
>

How to check whether the powerd configuration is right ?

thanks,
Ruan.




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