On 2021-08-21 9:01 p.m., Emanuel Berg wrote:
> Polyna-Maude Racicot-Summerside wrote:
>
>> Maybe you are playing in something you don't really master
>> the ins and out of the consequence of what you may do.
>> And this is proven by the simple sentence that *hibernation
>> cut Internet*. Unless you have a good reason to risk frying
>> your CPU then leave it alone.
>
> Oh, I meant to post this to the Debian user ML, not
> alt.os.linux ...
>
>> Or buy a system that doesn't use a fan, like the low power,
>> low thermal emission CPU used in laptop with only passive
>> cooling (heatsink).
>
> I had an RPi3 once and it was completely quiet, at least to
> the human ear - no fan. But as you see (the HDD and projector)
> while I used it, the fans were on anyway. But for some reason
> when you use a computer, that noise don't bug you ...
I'll add. the CPU in a Raspberry Pi is meant to be used in embedded
application and other stuff like a cellular phone for example. Those are
ARM type processor. Totally different from a x86/x64 based processor.
ARM are CPU used in cell phone and the latest Mac that runs without a
heat sink.
Nothing compared to a desktop PC.
And even then, there's some Raspberry Pi with a fan.
https://www.raspberrypi.org/blog/new-raspberry-pi-4-case-fan/
So even the RPi if you want more power, a fan would help. Because when
temperature rise, the CPU clock will lower, something specific to ARM CPU.
With AMD/Intel x86/x64 CPU, it's more that it won't allow to upscale the
clock if the temperature is too high inside the CPU.
>
> https://dataswamp.org/~incal/work-photos/rpi.jpg
>
> So there is no way of disabling the 120/140 mm fans that are
> connected to the motherboard from software? Maybe prolong the
> cables and have little physical switches (to cut power), if
> such things are marketed ...
>
> Because this
>
> #! /bin/zsh
> # https://dataswamp.org/~incal/conf/.zsh/misc-hw
> temperature () {
> local gpu=$(sensors -j | jq -a '.["nouveau-pci-0100"].temp1.temp1_input')
> local cpu=$(sensors -j | jq -a '.["k10temp-pci-00c3"].Tdie.temp1_input')
> echo "GPU ${gpu}C"
> echo "cpu ${cpu}C"
> }
>
> outputs the CPU and GPU temperature, one could downgrade the
> fans gradually and see what good they do - especially when one
> isn't using the computer ...
>
--
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development
Attachment:
OpenPGP_signature
Description: OpenPGP digital signature