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Why would you need a cooling fan for the Pi? It doesn’t really need it unless you do a ton of video encoding for example.
by prox 6y ago
Why would you need a cooling fan for the Pi? It doesn’t really need it unless you do a ton of video encoding for example.
- lmarcos 6y agoIt does need a fan: https://www.jeffgeerling.com/blog/2019/raspberry-pi-4-needs-fan-heres-why-and-how-you-can-add-one https://www.jeffgeerling.com/blog/2019/raspberry-pi-4-needs-...
- blacksmith_tb 6y agoThe Pi 4 does, but it looks like you can pair the Shake seismometer hats with the Pi Zero W, those run fine with passive cooling (especially bolted to a concrete slab in the basement, I'd say).
- prox 6y agoThe Raspberry Pi 400 doesn’t have one. I believe it throttles back when too hot.
- detaro 6y agothe 400 has a metal parts of the case as a passive cooling surface, so it fares better than the "naked" Pi 4.
- Jedd 6y agoI've got few of the model 4, though most of my Pis are earlier models. Earlier models I rarely had a fan involved, but the first two model 4s I used, I put on a big metal heatsink that included two fans. For my purposes the fans seem to be fine to be disabled, and the device doesn't throttle back due to thermal overload. However - the heatsink takes up a lot of space, and probably can not be used with this kind of hat, so I'd have to look at a less passive cooling option I think. Also, where I'd be deploying something like this would be in a part of Australia where through summer ambient air temperature can get around 50C, and if it's in a shed or covered area, perhaps higher. I haven't had a Pi4 running here through a summer yet, so have no idea how that's going to play out. In about two months from now I'll have a better idea.