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
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