Date: Sun, 17 Jul 2016 07:55:21 -0453.75 From: "William A. Mahaffey III" <wam@hiwaay.net> To: freebsd-questions@freebsd.org Subject: Re: High CPU temperature and high fans level Message-ID: <2ab232fb-0476-a5be-a9ad-14b9c63adcef@hiwaay.net> In-Reply-To: <CAO%2BPfDeLiavM%2BDQpvR0Sf=wG7NK6LByO7XddKED85WLNDAxCLA@mail.gmail.com> References: <CAO%2BPfDe_Bs=OyN39UxKpSGt1RnCKiYxAOFCW5P=VtmYmmtkGuw@mail.gmail.com> <20160717002508.591a61ce.freebsd@edvax.de> <CAO%2BPfDeLiavM%2BDQpvR0Sf=wG7NK6LByO7XddKED85WLNDAxCLA@mail.gmail.com>
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On 07/17/16 05:05, David Demelier wrote:
> 2016-07-17 0:25 GMT+02:00 Polytropon <freebsd@edvax.de>:
>> 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.
>>
> Yes, I had powerd enabled, I tried -a adaptive, -a hiadaptive as
> suggested by Erich but it seems that only -a min has some little
> effect. I could get a temperature of 52C. I've tested back on Linux
> and I got an average much lower (41C).
>
> By the way the other sensors in hw.acpi.tz* are also much higher than
> Linux (using lm_sensors). The highest value is my tz5 which is at 78C
> almost 5 seconds after boot while the maximum tz value in Linux
> sensors is 55.
>
> I have no idea what's wrong. :(
>
I have had issues w/ FreeBSD apparently not reporting accurate temps on
this box, AMD jaguar desktop, FreeBSD 9.3R. YMMV & all that rot ....
--
William A. Mahaffey III
----------------------------------------------------------------------
"The M1 Garand is without doubt the finest implement of war
ever devised by man."
-- Gen. George S. Patton Jr.
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