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Groups > linux.debian.user > #239783

Re: smart fans

From David Christensen <dpchrist@holgerdanske.com>
Newsgroups linux.debian.user
Subject Re: smart fans
Date 2021-09-07 23:20 +0200
Message-ID <CUQFz-UT-5@gated-at.bofh.it> (permalink)
References (17 earlier) <CTpxL-2OF-1@gated-at.bofh.it> <CTsYF-4LT-7@gated-at.bofh.it> <CTtUJ-5pp-1@gated-at.bofh.it> <CTKVz-84E-5@gated-at.bofh.it> <CUxMB-5Q6-1@gated-at.bofh.it>
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On 9/6/21 6:03 PM, Emanuel Berg wrote:
> David Christensen wrote:
> 
>>> You seem to have got the old file again, check it out again,
>>> because some of those issues have already been
>>> mentioned/fixed:
>>>    https://dataswamp.org/~incal/ebchw/cpu.txt
>>
>> Much better:
>>    http://www.holgerdanske.com/pub/dpchrist/debian-user/20210821-smart-fans/
> 
> OK, what stuff remains, remove the spaces? Let's do it good
> now that we spent so much time on it :)


Different people have different ideas of what "CSV format" means.  The 
example CSV output I posted on 9/3/21 6:45 PM was created by LibreOffice 
Calc.  If you can match that, you should be able to read it with most 
programs that accept CSV input.


>> Have you isolated and identified the primary sound source(s)
>> in the computer?
> 
> I removed the HDD, now I have an SSD (M.2), so that should be
> no more 29 dB (worst case) from the HDD. Also... the M.2 is
> much faster so now Debian boots much faster and stuff
> like that. Amazing :)
> 
> Where does it come from?
> 
> I still don't know the dB of the GPU
> 
>    GFX    msi Nvidia Geforce GT 710 · 2GB DDR3 · PCI-E2.0 · HDMI+DL-DVI-D
> 
> and I also don't know the dB of the PSU, however I did find
> out it is a
> 
>    PSU    Seasonic Focus 100-240VAC


We need a complete model name or part number for the Seasonic -- they 
make several "Focus" models.


STFW I am unable find noise specifications for either.


>> Have you implemented any vibration or sound
>> mitigation measures?
> 
> See the COMPUTER file for upgrades :)


https://dataswamp.org/~incal/ebchw/COMPUTER

I do not see any vibration or sound mitigation measures (?).


Please provide complete manufacturer names, model names, part numbers, etc..


> I finally understand it, I think, the first digit isn't the
> minimum duty cycle (that's the second digit) but the _minimum
> speed_, so we see that the DC fans can only go as low as 60%,
> while the 140 mm PWM fan can get down to 20% and the 120 mm
> dittos 24%.
> 
> However one can in the BIOS/UEFI/Setup explicitly say DCs
> should disable when not even 60% is needed because of whatever
> temperature function one has defined (I just choose the
> optimal which was computed live BTW, cool)
> 
> So the problem was, perhaps, that the 2 DCs were running at
> 60% all the time, even when the computer was idle?
> 
> So Maybe I should get away with the "Corsair A1225M12S" and
> the DC version of "be quiet! Shadow Wings 2" and replace with
> the PWM versions I already have (but too few), then all 140 mm
> will run at 20% and all 120 mm will run at 24%?
>                                                           min.   min.
> fan    connector  fan                      mm  pin dB(A) speed  duty cycle
>         CHA_FAN1   Corsair A1225M12S        120  3  18.9  60%    34%
>         CHA_FAN2   be quiet! Shadow Wings 2 140  4  14.9  20%    17%
>         CHA_FAN3   be quiet! Shadow Wings 2 140  3  14.7  60%    24%
>         CPU_FAN    be quiet! Pure Wings 2   120  4  15.9  24%    25%
>         CPU_OPT    be quiet! Pure Wings 2   120  4  15.9  24%    25%
> 
>> If you have magnetic HDD's, switching to SSD's would
>> eliminate those vibrations.
> 
> I had the SSD M.2 mounted on the motherboard all along,
> without ever using it!
> 
> Now worst-case has gone from
> 
>    (db 18.9 14.9 14.7 15.9 15.9 29.0) ; 30.0 dB
> 
> to
> 
>    (db 14.9 15.9 15.9) ; 20.36 dB
>    <https://dataswamp.org/~incal/emacs-init/audio.el>
> 
> since the DC fans stop. However when idling shouldn't be the
> "worst case", so the PWM fans at 20%, 24%, and 24%
> respectively shouldn't do that kind of noise, so my guess is
> it is the GPU ...
> 
> But I didn't try to read and see if it still annoys me (or if
> I even notice a difference), so let's do that now :)


Fan speed and noise data would help in making rational decisions, such 
as what happens to CPU temperature for a given workload when you reduce 
fan speeds or turn them off, etc..


The CMOS Setup should be able to tell you fan speeds, CPU temperatures, 
voltages, and other internal parameters.


For noise measurements, you want a sound meter, a smart phone with a 
sound measuring app, a microphone and a PC with Audacity, a microphone 
and a multi-meter, etc..  Or, make subjective noise measurements by ear.


Open the case, disconnect the PSU from everything, remove the GPU card, 
and disconnect all the fans.  Then, turn the PSU on, make a noise 
measurement, and turn the PSU off.  Repeat until you get a reliable 
measurement.  Then connect the PSU to the motherboard and repeat; but 
only briefly (~10 seconds) while the CPU fan(s) are disconnected.  Allow 
  the CPU and heat pipe time to cool between trials (~2 minutes).  Then 
connect the GPU to the motherboard and PSU, and repeat; again, briefly, 
etc..  Then connect the other fans one at a time and repeat, starting 
with CPU fans.  Once you have both CPU fans connected, then you can use 
the CMOS Setup utility to get fan speed data and CPU temperature data. 
Check if your CMOS Setup utility can apply load the CPU.  If so, gather 
data under varying load conditions -- 0%, 25%, 50%, 75%, 100%, etc..


What is your use-case?  E.g. what services are you running 24x7?  How 
much computing power do you need when you want the computer to be 
silent?  Try using cpufreq-set(1) to lower the maximum CPU frequency 
until it matches the average CPU workload.  Try turning off CPU cores. 
The goal is to keep the CPU low, the heat production low, and the fans 
at low speed at all times.


Contact Corsair technical support and ask if they sell a sound absorbing 
material kit for your chassis, or can recommend one.  And/or contact 
technical support for the companies that make these kits, tell them your 
chassis make and model, and ask them for recommendations.


David

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Thread

smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 02:00 +0200
  Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 02:50 +0200
    Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 03:10 +0200
      Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 05:00 +0200
        Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 05:10 +0200
      Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 05:10 +0200
        Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 05:30 +0200
          Re: FOSS "BIOS" (UEFI) (was: Re: smart fans) Reco <recoverym4n@enotuniq.net> - 2021-08-22 07:30 +0200
            Re: FOSS "BIOS" (UEFI) (was: Re: smart fans) Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 08:30 +0200
              Re: FOSS "BIOS" (UEFI) (was: Re: smart fans) Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 10:30 +0200
              Re: FOSS "BIOS" (UEFI) The Wanderer <wanderer@fastmail.fm> - 2021-08-22 12:10 +0200
                Re: FOSS "BIOS" (UEFI) Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 13:30 +0200
              Re: FOSS "BIOS" (UEFI) (was: Re: smart fans) Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 15:20 +0200
                Re: FOSS "BIOS" (UEFI) (was: Re: smart fans) Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 16:30 +0200
                Re: FOSS "BIOS" (UEFI) (was: Re: smart fans) Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 18:50 +0200
          FOSS "BIOS" (UEFI) (was: Re: smart fans) Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 07:30 +0200
  Re: smart fans <tomas@tuxteam.de> - 2021-08-22 09:10 +0200
    Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 09:50 +0200
      Re: smart fans <tomas@tuxteam.de> - 2021-08-22 10:00 +0200
        Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 10:10 +0200
          Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 10:10 +0200
            Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 10:20 +0200
          Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 10:30 +0200
            Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 10:50 +0200
              Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 15:10 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 16:10 +0200
                Re: smart fans The Wanderer <wanderer@fastmail.fm> - 2021-08-22 16:10 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 16:20 +0200
                Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 18:50 +0200
      Re: smart fans Hans <hans.ullrich@loop.de> - 2021-08-22 17:30 +0200
        Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 17:50 +0200
  Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-22 09:50 +0200
    Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 10:00 +0200
      Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 10:20 +0200
      Re: smart fans <tomas@tuxteam.de> - 2021-08-22 10:30 +0200
        Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 10:40 +0200
        Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 10:40 +0200
          Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 10:40 +0200
            Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 10:50 +0200
              Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 11:30 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 11:50 +0200
                Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 15:10 +0200
                Re: smart fans didier gaumet <didier.gaumet@gmail.com> - 2021-08-22 11:50 +0200
                Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 15:10 +0200
              Re: smart fans didier gaumet <didier.gaumet@gmail.com> - 2021-08-22 11:30 +0200
          Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 11:00 +0200
            Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 15:10 +0200
              Re: smart fans <tomas@tuxteam.de> - 2021-08-22 15:50 +0200
                Re: smart fans rhkramer@gmail.com - 2021-08-22 16:10 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 16:50 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 16:10 +0200
                Re: smart fans <tomas@tuxteam.de> - 2021-08-22 16:30 +0200
                Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 18:50 +0200
                Re: smart fans Gene Heskett <gheskett@shentel.net> - 2021-08-22 23:10 +0200
                Re: smart fans Gene Heskett <gheskett@shentel.net> - 2021-08-23 00:20 +0200
                Re: smart fans "Thomas Schmitt" <scdbackup@gmx.net> - 2021-08-22 16:30 +0200
                Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 18:50 +0200
                Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-22 19:00 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-22 23:10 +0200
                Re: smart fans <tomas@tuxteam.de> - 2021-08-23 10:10 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 21:10 +0200
                Re: smart fans <tomas@tuxteam.de> - 2021-08-23 21:10 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-23 21:30 +0200
                Re: smart fans <tomas@tuxteam.de> - 2021-08-23 21:40 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 22:30 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 00:30 +0200
            Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-22 22:30 +0200
              Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 23:20 +0200
      Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-22 21:30 +0200
        Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 22:00 +0200
          Re: smart fans didier gaumet <didier.gaumet@gmail.com> - 2021-08-22 23:20 +0200
            Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 23:40 +0200
              Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-22 23:50 +0200
                Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-23 00:40 +0200
              Re: smart fans didier gaumet <didier.gaumet@gmail.com> - 2021-08-23 09:30 +0200
        Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 22:20 +0200
          Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-22 23:10 +0200
            Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 23:30 +0200
        Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-22 23:50 +0200
          Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-23 00:10 +0200
            Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 02:00 +0200
              Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 02:10 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 02:40 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 03:00 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-23 03:30 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 21:00 +0200
                Re: smart fans "Andrew M.A. Cater" <amacater@einval.com> - 2021-08-24 18:20 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-24 23:00 +0200
                Re: smart fans Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-23 03:30 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 21:00 +0200
              Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-23 03:20 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 21:00 +0200
                Re: smart fans "Thomas Schmitt" <scdbackup@gmx.net> - 2021-08-23 22:50 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-23 23:00 +0200
                Re: smart fans "Thomas Schmitt" <scdbackup@gmx.net> - 2021-08-23 23:30 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 00:50 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 01:30 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-24 02:30 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-24 03:00 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 04:30 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-24 05:20 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 09:00 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-24 23:20 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-24 23:40 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 00:40 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 00:20 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-24 02:10 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 04:00 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-24 07:30 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 09:50 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-25 00:20 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-25 01:30 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-08-29 01:00 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-29 12:00 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-09-04 00:10 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-09-04 03:50 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-09-04 04:50 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-09-04 23:00 +0200
                Re: smart fans Emanuel Berg <moasenwood@zoho.eu> - 2021-09-07 03:10 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-09-07 23:20 +0200
                Re: smart fans David Christensen <dpchrist@holgerdanske.com> - 2021-08-24 11:20 +0200

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