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REPLYADDR Pancho.Jones@proton.me
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On 12/7/24 11:54, The Natural Philosopher wrote:
> On 06/12/2024 14:53, s|b wrote:
>> On Thu, 5 Dec 2024 07:48:59 +0000, The Natural Philosopher wrote:
>>
>>>> Tnx for the follow-up. According to the shop I could just snip the
>>>> green
>>>> wire, so I've done that. I've set it to run at 60°C and the fan's not
>>>> turning (CPU temperature is 48°C).
>>> My Pi 4B runs about that with no fan
>>
>> That's what I'm saying: it's 48°C when the fan is not running. Software
>> only allows to set a minimum temperature of 60°C before the fan starts
>> running, so I unchecked the setting and now the fan is turning all the
>> time. A fan with only 2 cables (red & black) should have been enough. I
>> don't know if there's a way to set that minimum temperature to 40°C...
>>
>> But yes, it's not really necessary and  I shouldn't have bought it. But
>> it was fun setting it up. I use RPi4 for Pi-Hole and PiVPN. I've played
>> a little with RetroPie, so maybe I'll give that another go, because I
>> have two RPi4 now.
>>
>> I used a Pimoroni Heatsink Case for the first one I bought:
>> > raspberry-pi-4?variant=29430673178707>
>>
>> Temperature is around 40°C.
>>
>> The Unity V2 comes with a fan:
>> > search=unity>
>>
>> Temperature is between 30° and 35°C. (There's a real peak when I open
>> Fx.)
>>
>
> It's an interesting thought as to why one would use a fan at all. If its
> such a high compute task that you need one, maybe a bigger Pi or an
> Intel based machine is indicated.
>

Heat is often about continuous utilisation, like CCTV. On my Pi4 I have
a heavy aluminium case that serves as a heat sink, it is fine without a fan.

On my Pi5, I use the official active cooler heat sink, which has a fan.
But a good fan, in that it only comes on during the hottest days of summer.

In a moment of stupidity I also bought a metal case for the Pi5 which
messes up my USB keyboard/mouse dongle (reflection?), I haven't checked
to see what it does to Bluetooth and WiFi.

> I dislike fans. They fail.
>
They do, but they normally last for years.

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