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Imperf3kt
Posts: 2968
Joined: Tue Jun 20, 2017 12:16 am
Location: Australia

Re: RaspberryPi 4: heatsink or fan

Sun Sep 22, 2019 10:14 pm

pica200 wrote:
Sun Sep 22, 2019 8:10 pm
If you live in a toasty area then you will have no choice other than active cooling but you will have the same problem with any device generating as much heat as the Pi 4.
I am awaiting summer before making my final judgement on this, but I do happen to live in a country that is 70% desert and the temperature is regularly in the high 20s, low 30s. In summer it almost reaches 50°C. I cannot say I share this view, I have yet to make my Pi4b thermally throttle with no cooling at all.
55:55:44:44:4C
52:4C:52:42:41

alphanumeric
Posts: 2151
Joined: Tue Jan 19, 2016 2:17 pm
Location: Sydney, Nova Scotia, Canada

Re: RaspberryPi 4: heatsink or fan

Sun Sep 22, 2019 10:19 pm

jahboater wrote:
Sun Sep 22, 2019 10:11 pm
alphanumeric wrote:
Sun Sep 22, 2019 10:00 pm
Define normal usage? My 4B routinely hit 80c with just a browser window open to one of my surveillance camera network feeds. Heatsink no fan Pibow coupe case . Room temperature was around 24c.
Is that your PiBow case perhaps?
My 4B is at 50C just using the browser.
About 20C ambient.
Its a pretty open case, https://shop.pimoroni.com/products/pibo ... 00105299 And its the heatsink made for it.

I saw 54c after doing update upgrade, ambient was 22 c.
No case, no heatsink, no fan. Four short stand offs for feet.
No config.txt edits etc. Stock Buster install.

I got 41c on boot up after it had cooled down while I put my Pibow Coupe case on.
56c after sitting idle with just the desktop open.
51c with the heatsink on.

EDIT: I should mention that after that happened several times (hitting 80c), I have installed a Fan Shim with the fan running continuous. My temps are now around 40c no matter what I do on that Pi 4B.

RedPanther
Posts: 39
Joined: Thu Sep 12, 2019 9:20 pm

Re: RaspberryPi 4: heatsink or fan

Tue Sep 24, 2019 5:53 am

Did somebody say “active cooling”? :lol: My case is built for active cooling! I have to post pictures of the current setup, it’s been a while since I’ve updated my thread

My Pi 4B runs nearly 24/7, overclocked, and acts as a server for NFS, Samba, DLNA, and PLEX. At idle over night, it usually runs about 32 degrees Celsius. During the day it idles at about 36. Under stress with 4 hogs running, it steadies out at most 59 degrees.

It’s ranging between 30 degrees and 32 at the moment.
One more is never enough ;)

RedPanther
Posts: 39
Joined: Thu Sep 12, 2019 9:20 pm

Re: RaspberryPi 4: heatsink or fan

Tue Sep 24, 2019 4:16 pm

My current setup. 2-80mm high output fans pulling air in the case, and 1-120mm low output fan pulling air out. No, my case is not finished.
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One more is never enough ;)

RedPanther
Posts: 39
Joined: Thu Sep 12, 2019 9:20 pm

Re: RaspberryPi 4: heatsink or fan

Tue Sep 24, 2019 4:19 pm

Current readings while running two chromium windows and one PLEX client streaming at 720p:
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One more is never enough ;)

pica200
Posts: 151
Joined: Tue Aug 06, 2019 10:27 am

Re: RaspberryPi 4: heatsink or fan

Tue Sep 24, 2019 5:25 pm

:lol: what the f. That's the definition of overkill. I wonder when we will see a Pi 4 running inside of a fridge or with liquid nitrogen cooling :mrgreen:

RedPanther
Posts: 39
Joined: Thu Sep 12, 2019 9:20 pm

Re: RaspberryPi 4: heatsink or fan

Tue Sep 24, 2019 5:37 pm

pica200 wrote:
Tue Sep 24, 2019 5:25 pm
:lol: what the f. That's the definition of overkill. I wonder when we will see a Pi 4 running inside of a fridge or with liquid nitrogen cooling :mrgreen:
https://www.raspberrypi.org/forums/view ... p?t=251546

This is the reason for this case. Two more 80mm fans will be added to the front of the case as I continue with the project, to cool all of the other Pi's that will be in it.
One more is never enough ;)

pica200
Posts: 151
Joined: Tue Aug 06, 2019 10:27 am

Re: RaspberryPi 4: heatsink or fan

Tue Sep 24, 2019 5:47 pm

That makes much more sense indeed. With so many Pi 4's in a closed case you need good cooling :)

RedPanther
Posts: 39
Joined: Thu Sep 12, 2019 9:20 pm

Re: RaspberryPi 4: heatsink or fan

Tue Sep 24, 2019 6:35 pm

Here’s a video of my system running.

https://www.youtube.com/watch?v=XkMdsi ... ure=share

My wife and I are used to ambient noise from having an A/C unit and tower fan running, so the noise from my tower is barely heard usually. If you watch the video, you may want to turn down the volume some, as I don’t have the A/C or tower fan on in the video.
One more is never enough ;)

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