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/d
On 9/3/21 7:42 PM, Emanuel Berg wrote:
David Christensen wrote:
OK, changed.
Your data format still has issues.
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
David Christensen wrote:
>> OK, changed.
>
> Your data format still has issues.
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
--
underground experts united
https://datasw
David Christensen wrote:
> Feeding the raw data into LibreOffice Calc was problematic
> -- header line field names do not have a one-to-one with
> data line field values. I reworked the header line as
> follows:
>
> time, governor, processes, CPU_temperature, system_load,
> CPU_fan_spe
On 9/3/21 3:05 PM, Emanuel Berg wrote:
David Christensen wrote:
Feeding the raw data into LibreOffice Calc was problematic
OK, changed.
Your data format still has issues. This is what LibreOffice Calc wants:
time,governor,processes,CPU_temperature,system_load,CPU_fan_speed,core1_freq,
On 8/28/21 3:55 PM, Emanuel Berg wrote:
David Christensen wrote:
You want to watch the test run, so that you can monitor
progress, make adjustments, and/or stop it if things
go badly.
Don't worry about it...
Here are the 20 first lines of the output:
time, governor, processes, CPU temperatu
David Christensen wrote:
> You want to watch the test run, so that you can monitor
> progress, make adjustments, and/or stop it if things
> go badly.
Don't worry about it...
Here are the 20 first lines of the output:
time, governor, processes, CPU temperature C, system load, CPU fan speed RPM,
David Christensen wrote:
> I would output a header line and then output each set of
> statistics on a single line [...]
>
> I would avoid doing any math on the data. Save raw values
> and deal with math in post-processing [...]
>
> I would put units into the headers. Save raw values and deal
> wit
> OK, so then the data is
>
> 5 fans: 23.3 dB
> 5 fans and HDD: 30.0 dB
OK, so if the HDD is 29 dB and all the five fans just add 1 dB
maybe one shouldn't even care about the fan noise ...
--
underground experts united
https://dataswamp.org/~incal
David Christensen wrote:
> These are the equations and conversion factors needed:
>
> Bel = log10(power)
>
> power = 10 ** Bel
>
> 1 Bel = 10 dB
>
> So, your calculation should be:
>
> 2021-08-23 23:42:34 dpchrist@dipsy ~
> $ perl -e '$p=0; $p += 10**($_/10) for @ARGV; print
> 10*log
The unaccounted for fan is a Corsair A1225M12S. It's noise is
18.9 db(A).
So now all mounted fans and the HDD are accounted for, it
lands on 37.3 dB if the dB algorithm is correctly understood
and implemented (start with the highest, then add 3 dB every
time it is doubled).
So, that means only th
On 8/24/21 3:17 PM, Emanuel Berg wrote:
I'll run it next time I go for a walk...
You want to watch the test run, so that you can monitor progress, make
adjustments, and/or stop it if things go badly.
Have you identified the sound source(s) that are most annoying?
David
On Mon, Aug 23, 2021 at 08:54:29PM +0200, Emanuel Berg wrote:
> David Christensen wrote:
>
> > Changing settings and making measurements at idle is
> > a starting point. You should also put the machine under load
> > and make measurements.
>
> Yes, but I know already that even with all fans (2*CP
David Christensen wrote:
> For a CPU with N cores (N=4 for an AMD Ryzen 3 3200G?) and
> an otherwise unloaded system, your test procedure should be
> something like:
>
>loop over governor choices
> set governor
> loop 3 times
> sleep 60 seconds
> print statistics
>
On 8/23/21 3:17 PM, David Christensen wrote:
Here is a Perl one-liner that should peg one core:
$ perl -e "1 while 1"
Here is a Perl one-liner that can do between 0 and 100 percent loading
of one core:
2021-08-24 02:13:06 dpchrist@dipsy ~
$ perl -MTime::HiRes=time,sleep -e
'$a=$ARGV[0]/10
On 8/23/21 10:25 PM, Emanuel Berg wrote:
David Christensen wrote:
For a CPU with N cores (N=4 for an AMD Ryzen 3 3200G?) and
an otherwise unloaded system, your test procedure should be
something like:
loop over governor choices
set governor
loop 3 times
sleep 60 secon
David Christensen wrote:
> Doubling the sound energy adds 3 db. So, the two loudest
> fans are around 19 dB.
>
> The HDD is 2.9 Bel = 29 dB.
So the total worse-case is 35.4 dB?
(With the GPU, PSU and one fan still unaccounted for.)
;;; -*- lexical-binding: t -*-
;;;
;;; this file:
;;; https:/
On 8/23/21 8:09 PM, Emanuel Berg wrote:
David Christensen wrote:
Doubling the sound energy adds 3 db. So, the two loudest
fans are around 19 dB.
The HDD is 2.9 Bel = 29 dB.
So the total worse-case is 35.4 dB?
(With the GPU, PSU and one fan still unaccounted for.)
;;; -*- lexical-binding: t
> db(A): 14.9, 15.9 (2), 14.7 [...]
>
> Here is the HDD BTW
>
> $ sudo lshw -class disk
> *-disk
>description: ATA Disk
>product: SAMSUNG HD204UI [...]
Here [1] it says "Acoustics – Idle 2.5/2.6 Bel, Performance
Seek 2.8/2.9 Bel"
So what does that mean, the maximum is 2.9 Bel or
David Christensen wrote:
> Nice case. :-)
Yeah, I guess :)
> The purpose of the plate at the bottom is to form
> a thermally isolated chamber for the the power supply.
> The unperforated portions of the top surface could be
> covered with sound absorbing material.
What material would that be?
David Christensen wrote:
>> But changing the profile (governor) doesn't produce any
>> (noticable?) sound level change and also the temperature of
>> the CPU and the GPU seem unaffected.
>
> You will not notice a change in CPU fan temperature or speed
> profiles as a function of the Linux governor
On 8/23/21 5:26 PM, Emanuel Berg wrote:
David Christensen wrote:
Nice case. :-)
Yeah, I guess :)
The purpose of the plate at the bottom is to form
a thermally isolated chamber for the the power supply.
The unperforated portions of the top surface could be
covered with sound absorbing mater
On 8/23/21 5:05 PM, Emanuel Berg wrote:
David Christensen wrote:
But changing the profile (governor) doesn't produce any
(noticable?) sound level change and also the temperature of
the CPU and the GPU seem unaffected.
You will not notice a change in CPU fan temperature or speed
profiles as a
Thomas Schmitt wrote:
> If nothing else helps to find the culprit, then consider to
> unplug all case fans to prove that it's not them. A bit more
> adventurous is to run the CPU without fan for a few seconds.
Maybe there is an adaptor so one can run them from an USB
charger or something ...
> (
With the 'powersave' governor and all 5 fans "Silent", the CPU
temperature, for random/normal computer use, is in
(33.25 51.125) and ditto GPU (40 42), and with the
'performance' governor it is ... exactly the same.
https://dataswamp.org/~incal/conf/.zsh/misc-hw
--
underground experts united
htt
On 8/23/21 3:42 PM, David Christensen wrote:
On 8/23/21 2:25 PM, Thomas Schmitt wrote:
Hi,
Emanuel Berg photographed:
https://dataswamp.org/~incal/ebchw/fan-top.jpg
Conspicuously absent are drive cages; but I do see drive case mounting
screw holes. If drives are not needed, the mounting su
tomas wrote:
> I say "back then" above, but there seem to be design
> parameters which still favour brushes. My reasonably recent
> power drill still has brushes.
The 18V cordless power tools from Ryobi that I like come in
several versions each and the most expensive ones are
brushless, often.
-
David Christensen wrote:
> Changing settings and making measurements at idle is
> a starting point. You should also put the machine under load
> and make measurements.
Yes, but I know already that even with all fans (2*CPU cooling
tower, 3*case) at "Silent" and with the powersave governor it
stil
Polyna-Maude Racicot-Summerside wrote:
> If you take the option for let say "performance" then it
> will be at max speed so the system is the coolest possible
> all the time.
But changing the profile (governor) doesn't produce any
(noticable?) sound level change and also the temperature of
the CP
On 8/23/21 2:25 PM, Thomas Schmitt wrote:
Hi,
Emanuel Berg photographed:
https://dataswamp.org/~incal/ebchw/fan-top.jpg
The case fans look like they would produce a lot of wind if really
running at full speed. Whatever, i'd make a closer photo, unplug them,
listen how much noise is missing, a
David Christensen wrote:
> - Set the Linux CPU governor to "powersave".
Nothing happens when I do that.
> Try the QFan "Silent" profile
Same.
> What about GPU fan(s)? Power supply fan(s)?
> What about HDD's?
Yeah, I thought about that. I listened to the fan I had
outside of the computer, put
On 8/23/21 1:44 PM, Thomas Schmitt wrote:
Hi,
Emanuel Berg wrote:
[...] maybe it isn't
the case fans or the CPU cooling tower fans that make the
sound anyway!
If nothing else helps to find the culprit, then consider to unplug all
case fans to prove that it's not them.
A bit more adventurous i
On 8/23/21 12:36 PM, to...@tuxteam.de wrote:
On Mon, Aug 23, 2021 at 12:20:34PM -0700, David Christensen wrote:
[...]
Thank you. Do you know where there is information that explains how
a BLDC computer fan motor responds to variable supply voltage?
Not specifically for computer fans, and th
On 8/23/21 11:41 AM, Emanuel Berg wrote:
David Christensen wrote:
- Set the Linux CPU governor to "powersave".
Nothing happens when I do that.
Try the QFan "Silent" profile
Same.
What about GPU fan(s)? Power supply fan(s)?
What about HDD's?
Yeah, I thought about that. I listened to th
Hi,
Emanuel Berg photographed:
> https://dataswamp.org/~incal/ebchw/fan-top.jpg
The case fans look like they would produce a lot of wind if really
running at full speed. Whatever, i'd make a closer photo, unplug them,
listen how much noise is missing, and then plug them in again guided by
the pho
Hi,
Emanuel Berg wrote:
> [...] maybe it isn't
> the case fans or the CPU cooling tower fans that make the
> sound anyway!
If nothing else helps to find the culprit, then consider to unplug all
case fans to prove that it's not them.
A bit more adventurous is to run the CPU without fan for a few s
On Mon, Aug 23, 2021 at 12:20:34PM -0700, David Christensen wrote:
[...]
> Thank you. Do you know where there is information that explains how
> a BLDC computer fan motor responds to variable supply voltage?
Not specifically for computer fans, and the controller electronics
(which is a must for
On 8/23/21 1:03 AM, to...@tuxteam.de wrote:
On Sun, Aug 22, 2021 at 02:02:45PM -0700, David Christensen wrote:
[...]
What is "BLDC"?
Brushless (electric) DC motor [1]. Back Then (TM ;-), to turn an
electric motor around you had to switch around the magnetic field
in the coils at (about) the
On Mon, Aug 23, 2021 at 08:57:09PM +0200, Emanuel Berg wrote:
> tomas wrote:
>
> > [...] My reasonably recent power drill still has brushes.
>
> The 18V cordless power tools from Ryobi that I like come in
> several versions each and the most expensive ones are
> brushless, often.
My power tools
On Sun, Aug 22, 2021 at 02:02:45PM -0700, David Christensen wrote:
[...]
> What is "BLDC"?
Brushless (electric) DC motor [1]. Back Then (TM ;-), to turn an
electric motor around you had to switch around the magnetic field
in the coils at (about) the right time. This was accomplished by
sliding c
Le dimanche 22 août 2021 à 23:26 +0200, Emanuel Berg a écrit :
>
> Yeah, or replace the 3-pins with 4-pins?
[...]
If you already have 4-pins fans available or are willing to invest in
buying them, it would probably be the best solution
Good luck :-)
> OK, I did check out the BIOS/UEFI/Setup and all five fans
> can be configured individually. There are five options.
I spoke to soon, there seems to be only one set of options for
the CPU fan, so I guess the CPU_OPT and CPU_FAN are the same
in terms of options.
Anyway now I've set all 5 to "Sile
OK, I did check out the BIOS/UEFI/Setup and all five fans can
be configured individually. There are five options.
Control can be disabled, auto (the default), DC, or PWM.
Wind-up time is set to 0.
Minimum speed is 200 RPM.
Profiles were Standard (the default), Silent, Turbo,
and Manual.
I set
> Temperatures of the CPU and GPU I have,
>
> #! /bin/zsh
> #
> # this file:
> # http://user.it.uu.se/~embe8573/conf/.zsh/misc-hw
> # https://dataswamp.org/~incal/conf/.zsh/misc-hw
>
> temperature () {
> local gpu=$(sensors -j | jq -a '.["nouveau-pci-0100"].temp1.temp1_input')
> local c
David Christensen wrote:
> I would figure out what Setup can do with the fans before
> messing with the Linux CPU governor. Install software to
> display temperatures, to display fan speeds, and to put the
> CPU under load.
Temperatures of the CPU and GPU I have,
#! /bin/zsh
#
# this file:
# h
David Christensen wrote:
> Some of my other machines offer additional governors --
> "powersave" and "userspace". Run "cpufreq-info -g" to see
> what Debian offers on your motherboard.
I did install and did set it to different governors but the
fans seem to go on like the always do regardless?
C
didier gaumet wrote:
> I would think that pwmconfig complains that it finds 3-pins
> fans set up to PWM mode (4-pins required)
>
> Your UEFI propose either to setup your fans globally or
> individually and I think that by default the setup is
> global. This would probably be fine il all your fans
David Christensen wrote:
> I would disconnect the fan wire splitter, disconnect
> projector extra fan, and connect the Corsair fan directly to
> CHA_FAN1 [...]
>
> CHA_FAN1 - location? - Corsair, 120 mm 3-pin
This fan is at the rear end of the computer, high, air goes
out. This is 3-pin so should
On 8/22/21 5:51 PM, Emanuel Berg wrote:
OK, I did check out the BIOS/UEFI/Setup and all five fans
can be configured individually. There are five options.
I spoke to soon, there seems to be only one set of options for
the CPU fan, so I guess the CPU_OPT and CPU_FAN are the same
in terms of optio
On 2021-08-22 8:51 p.m., Emanuel Berg wrote:
>> OK, I did check out the BIOS/UEFI/Setup and all five fans
>> can be configured individually. There are five options.
>
> I spoke to soon, there seems to be only one set of options for
> the CPU fan, so I guess the CPU_OPT and CPU_FAN are the same
>
David Christensen wrote:
> The motherboard user's manual says all of the fan connectors
> are 4-pin.
Indeed, I looked at one of the fan's wires instead of the
connector :$
> Changing the supply voltage of a old-school 2-wire fan will
> change the speed. These typically have 4-pin power supply
>
On 8/22/21 4:57 PM, Emanuel Berg wrote:
David Christensen wrote:
I would figure out what Setup can do with the fans before
messing with the Linux CPU governor. Install software to
display temperatures, to display fan speeds, and to put the
CPU under load.
Temperatures of the CPU and GPU I hav
David Christensen wrote:
> Some of my other machines offer additional governors --
> "powersave" and "userspace". Run "cpufreq-info -g" to see
> what Debian offers on your motherboard.
$ cpufreq-info -g
conservative userspace powersave ondemand performance schedutil
> The user's manual:
>
> http
It took an even closer look at the motherboard and discovered
_all_ connectors are 4-pin. Inside the computer, 3/5 fans are
4-pin and the two on the CPU cooling tower (which are 4-pin,
so it checks out) even have "PWM" in their sticker text.
If the BIOS/UEFI setting is already PWM, and the connect
On 2021-08-22 5:47 p.m., David Christensen wrote:
> On 8/22/21 2:26 PM, Emanuel Berg wrote:
>> didier gaumet wrote:
>>
>>> I would think that pwmconfig complains that it finds 3-pins
>>> fans set up to PWM mode (4-pins required)
>>>
>>> Your UEFI propose either to setup your fans globally or
>>>
On Sunday 22 August 2021 17:04:06 Gene Heskett wrote:
> On Sunday 22 August 2021 12:46:14 Polyna-Maude Racicot-Summerside
wrote:
> > On 2021-08-22 10:02 a.m., Emanuel Berg wrote:
> > > tomas wrote:
> > >> I disagree. The thing poses [1] as a DC motor (2 pins power,
> > >> one tacho). I don't thin
On 8/22/21 2:40 PM, Emanuel Berg wrote:
David Christensen wrote:
Some of my other machines offer additional governors --
"powersave" and "userspace". Run "cpufreq-info -g" to see
what Debian offers on your motherboard.
I did install and did set it to different governors but the
fans seem to g
On 8/22/21 2:26 PM, Emanuel Berg wrote:
didier gaumet wrote:
I would think that pwmconfig complains that it finds 3-pins
fans set up to PWM mode (4-pins required)
Your UEFI propose either to setup your fans globally or
individually and I think that by default the setup is
global. This would pr
Le dimanche 22 août 2021 à 21:59 +0200, Emanuel Berg a écrit :
> It took an even closer look at the motherboard and discovered
> _all_ connectors are 4-pin. Inside the computer, 3/5 fans are
> 4-pin and the two on the CPU cooling tower (which are 4-pin,
> so it checks out) even have "PWM" in the
On Sunday 22 August 2021 12:46:14 Polyna-Maude Racicot-Summerside wrote:
> On 2021-08-22 10:02 a.m., Emanuel Berg wrote:
> > tomas wrote:
> >> I disagree. The thing poses [1] as a DC motor (2 pins power,
> >> one tacho). I don't think you get too much control over RPM
> >
> > That's what you get w
On 8/22/21 1:15 PM, Emanuel Berg wrote:
fanfront low be quiet! Shadow Wings 2 140 mm 3-pin[1]
front high be quiet! Shadow Wings 2 140 mm 4-pin
CPU cooling tower be quiet! Pure Wings 2120 mm 4-pin (2)[2]
rear Corsair
On 8/22/21 6:41 AM, to...@tuxteam.de wrote:
On Sun, Aug 22, 2021 at 09:03:51AM -0400, Polyna-Maude Racicot-Summerside wrote:
[...]
Like I already wrote, modifying voltage doesn't change speed of a motor
(fan).
I disagree. The thing poses [1] as a DC motor (2 pins power, one tacho).
[1] I'
On 8/22/21 1:39 AM, Emanuel Berg wrote:
4-pin fans wouldn't be possible because of the motherboard
sockets, I think, which are also 3-pin.
The motherboard user's manual says all of the fan connectors are 4-pin.
On 8/22/21 6:03 AM, Polyna-Maude Racicot-Summerside wrote:
> Like I already wrote
OK, I was wrong, I just checked the motherboard with
a flashlight and there are fan connectors with 4 pins! I also
checked my sock drawer and - holy socks! - I found a computer
fan from AMD, it comes with a cooling tower as well so I think
it's for the CPU, anyway it has a 4-wire! So I'll just conn
On 8/22/21 12:56 AM, Emanuel Berg wrote:
David Christensen wrote:
If you throttle your CPU, it will not generate as much heat:
https://wiki.debian.org/CpuFrequencyScaling
You mean permanently or when I'm not using the computer?
Install the Debian package 'cpufrequtils'.
Use cpufreq
rhkramer wrote:
> +1. A voltage controlled DC (computer fan) motor can be
> controlled / regulated down to about 40% of full rated speed
> (depending on the motor). A PWM (computer fan) motor can be
> controlled down to about 20% of full rated speed.
I found some web pages that describe the indiv
Polyna-Maude Racicot-Summerside wrote:
> Google "Coreboot supported motherboard" ?
>
> And going to see this page as the first choice
>
> https://coreboot.org/status/board-status.html
Great, so was it on the list?
It wasn't, right?
Bummer...
--
underground experts united
https://dataswamp.org
The Wanderer wrote:
>>> See *doc/fan-divisors* for more information.
>>
>> Yeah, but is that supposed to be a path? Or button?
>> What does it mean?
>
> It's clearly a reference to a path in the source, or native
> non-Debian-packaged build, tree of some relevant package.
OK, didn't know this no
tomas wrote:
> I disagree. The thing poses [1] as a DC motor (2 pins power,
> one tacho). I don't think you get too much control over RPM
That's what you get with the 4th wire/pin? A sensor to
read RPM?
"What you can't measure, you can't control"
--
underground experts united
https://dataswamp
Polyna-Maude Racicot-Summerside wrote:
>> Or what's this about fan-divisors?
>>
>> You may also need to increase the fan divisors.
>> See doc/fan-divisors for more information.
>>
> See *doc/fan-divisors* for more information.
Yeah, but is that supposed to be a path? Or button? What does
it
On 2021-08-22 12:43 p.m., Polyna-Maude Racicot-Summerside wrote:
>
>
> On 2021-08-22 9:41 a.m., to...@tuxteam.de wrote:
>> On Sun, Aug 22, 2021 at 09:03:51AM -0400, Polyna-Maude Racicot-Summerside
>> wrote:
>>
>> [...]
>>
>>> Like I already wrote, modifying voltage doesn't change speed of a mo
On 2021-08-22 10:04 a.m., Emanuel Berg wrote:
> Polyna-Maude Racicot-Summerside wrote:
>
>> Google "Coreboot supported motherboard" ?
>>
>> And going to see this page as the first choice
>>
>> https://coreboot.org/status/board-status.html
>
> Great, so was it on the list?
I don't know ! Why don
On 2021-08-22 10:02 a.m., Emanuel Berg wrote:
> tomas wrote:
>
>> I disagree. The thing poses [1] as a DC motor (2 pins power,
>> one tacho). I don't think you get too much control over RPM
>
> That's what you get with the 4th wire/pin? A sensor to
> read RPM?
>
Opposite
3 wire = 2 wire to dri
On 2021-08-22 10:00 a.m., Emanuel Berg wrote:
> Polyna-Maude Racicot-Summerside wrote:
>
>>> Or what's this about fan-divisors?
>>>
>>> You may also need to increase the fan divisors.
>>> See doc/fan-divisors for more information.
>>>
>> See *doc/fan-divisors* for more information.
>
> Yeah
On 2021-08-22 9:41 a.m., to...@tuxteam.de wrote:
> On Sun, Aug 22, 2021 at 09:03:51AM -0400, Polyna-Maude Racicot-Summerside
> wrote:
>
> [...]
>
>> Like I already wrote, modifying voltage doesn't change speed of a motor
>> (fan).
>
> I disagree. The thing poses [1] as a DC motor (2 pins powe
Am Sonntag, 22. August 2021, 09:42:20 CEST schrieb Emanuel Berg:
Just a little hint: On my EEEPC for example, pwmconfig and fancontrol did not
work, as it is loading the wrong module.
This can be fixed with a kernel param, that let load another kernel module,
which is supporting pwmconfig and fa
On Sun, Aug 22, 2021 at 04:02:48PM +0200, Emanuel Berg wrote:
> tomas wrote:
>
> > I disagree. The thing poses [1] as a DC motor (2 pins power,
> > one tacho). I don't think you get too much control over RPM
>
> That's what you get with the 4th wire/pin? A sensor to
> read RPM?
Re-read the Wikip
Hi,
Polyna-Maude Racicot-Summerside wrote:
> > Like I already wrote, modifying voltage doesn't change speed of a motor
> > (fan).
to...@tuxteam.de wrote:
> I disagree. [...]
> I have no idea what the motherboard/fan manufacturers actually do, though.
Voltage reduction is a tradional method to cu
On 2021-08-22 at 10:00, Emanuel Berg wrote:
> Polyna-Maude Racicot-Summerside wrote:
>
>>> Or what's this about fan-divisors?
>>>
>>> You may also need to increase the fan divisors.
>>> See doc/fan-divisors for more information.
>>>
>> See *doc/fan-divisors* for more information.
>
> Yeah,
On Sunday, August 22, 2021 09:41:59 AM to...@tuxteam.de wrote:
> On Sun, Aug 22, 2021 at 09:03:51AM -0400, Polyna-Maude Racicot-Summerside
> > Like I already wrote, modifying voltage doesn't change speed of a motor
> > (fan).
>
> I disagree. The thing poses [1] as a DC motor (2 pins power, one tac
didier gaumet wrote:
>> Okay, but is that even possible?
>
> Yes. If you want more details, read the previous link to an
> explanation of differences between 3 and 4 pins connectors:
> there are pictures to illustrate different possible
> combinations between 3 or 4 pins fan connectors and 3 or 4
On Sun, Aug 22, 2021 at 09:03:51AM -0400, Polyna-Maude Racicot-Summerside wrote:
[...]
> Like I already wrote, modifying voltage doesn't change speed of a motor
> (fan).
I disagree. The thing poses [1] as a DC motor (2 pins power, one tacho).
I don't think you get too much control over RPM, but
didier gaumet wrote:
> Here is your motherboard user manual [...]
> https://rog.asus.com/us/motherboards/rog-strix/rog-strix-b450-f-gaming-model/helpdesk_manual
> Look at 3.2.3 section for fan control
OK!
> I could be entirely wrong but what I would imagine is that
> fan control is by default ma
On 2021-08-22 2:28 a.m., Emanuel Berg wrote:
> Reco wrote:
>
>>> This made me think, is there a FOSS "BIOS" (UEFI) that you
>>> can install/flash to replace the manufacturer's?
>>
>> Coreboot is what you're thinking of. Supported motherboard's
>> list is extremely limited though.
>
> There is a
On 2021-08-22 5:49 a.m., Emanuel Berg wrote:
> didier gaumet wrote:
>
>>> Okay, but is that even possible?
>>
>> Yes. If you want more details, read the previous link to an
>> explanation of differences between 3 and 4 pins connectors:
>> there are pictures to illustrate different possible
>> co
On 2021-08-22 5:27 a.m., Emanuel Berg wrote:
> didier gaumet wrote:
>
>> Here is your motherboard user manual [...]
>> https://rog.asus.com/us/motherboards/rog-strix/rog-strix-b450-f-gaming-model/helpdesk_manual
>> Look at 3.2.3 section for fan control
>
> OK!
>
>> I could be entirely wrong bu
On 2021-08-22 4:39 a.m., Emanuel Berg wrote:
> Polyna-Maude Racicot-Summerside wrote:
>
>> The significant difference in practice is that 4-pin fans
>> allow for RPM to change based on the need for cooling
>> temperature, this reduces noise and power consumption.
>> While 3-pin can control the v
On 2021-08-22 4:36 a.m., Emanuel Berg wrote:
> Polyna-Maude Racicot-Summerside wrote:
>
>> I think you got all the information at hand now.
>
> pwmconfig fails but the error message doesn't add up.
>
> Or what's this about fan-divisors?
>
> You may also need to increase the fan divisors.
>
Polyna-Maude Racicot-Summerside wrote:
> The significant difference in practice is that 4-pin fans
> allow for RPM to change based on the need for cooling
> temperature, this reduces noise and power consumption.
> While 3-pin can control the voltage, but the voltage can't
> turn to change the fan
Polyna-Maude Racicot-Summerside wrote:
> You can only throttle it when you go into a close to stop.
> But this is really ineffective way of trying to control the
> speed. You'll be running at at most a hundred rpm.
But then why doesn't pwmconfig ask for 4-pin fans? It asks for
3-pin fans so while
Polyna-Maude Racicot-Summerside wrote:
> I think you got all the information at hand now.
pwmconfig fails but the error message doesn't add up.
Or what's this about fan-divisors?
You may also need to increase the fan divisors.
See doc/fan-divisors for more information.
--
underground expe
tomas wrote:
> Whether three-pin fans can be even be RPM controlled is an
> open question (the DC feed could be modulated, I guess, but
> I don't know whether it is actually done).
But then wouldn't pwmconfig ask for something other than
3-pin, perhaps something I don't have?
--
underground exp
BIOS seems to be:
$ sudo dmidecode -t bios
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.2.0 present.
Handle 0x, DMI type 0, 26 bytes
BIOS Information
Vendor: American Megatrends Inc.
Version: 2801
Release Date: 09/18/2019
Address: 0xF
Ru
Polyna-Maude Racicot-Summerside wrote:
>>> This would be the first thing to clear. If your hardware
>>> doesn't play along... game over :-/
>>
>> Yeah, but if so, why doesn't it?
>
> Why doesn't it? Because it is not implemented, because the
> builder of your motherboard made this choice...
>
> A
tomas wrote:
>> There are no working fan sensors, all readings are 0.
>> Make sure you have a 3-wire fan connected.
> ^^
> Well?
I'm sure!
> This would be the first thing to clear. If your hardware
> doesn't play along... game over :-/
Yeah, but if so, why doesn't it?
David Christensen wrote:
> If you throttle your CPU, it will not generate as much heat:
>
> https://wiki.debian.org/CpuFrequencyScaling
You mean permanently or when I'm not using the computer?
> Some motherboards have temperature sensors
The GPU seems to be always 41C while the CPU shows a
tomas wrote:
> Start here [1]. Enjoy.
>
> [1] https://wiki.archlinux.org/title/Fan_speed_control
Yes, but ...
$ sudo pwmconfig
# pwmconfig version 3.6.0
This program will search your sensors for pulse width
modulation (pwm) controls, and test each one to see if it
controls a fan on your motherbo
Reco wrote:
>> This made me think, is there a FOSS "BIOS" (UEFI) that you
>> can install/flash to replace the manufacturer's?
>
> Coreboot is what you're thinking of. Supported motherboard's
> list is extremely limited though.
There is a grub-coreboot package, is that it?
And how do you know if
Le dimanche 22 août 2021 à 11:27 +0200, Emanuel Berg a écrit :
>
> Okay, but is that even possible?
Yes. If you want more details, read the previous link to an explanation
of differences between 3 and 4 pins connectors: there are pictures to
illustrate different possible combinations between 3
> There is fancontrol (pwdconfig(1)) but I don't get it to
> work ... The BIOS (UEFI) can maybe be used but I don't
> have/use a mouse and I dislike the UI ...
>
> $ sudo dmidecode [...]
This made me think, is there a FOSS "BIOS" (UEFI) that you can
install/flash to replace the manufacturer's?
--
1 - 100 of 117 matches
Mail list logo
