1

i'm planning to buy an Raspberry Pi 4 Model B. Short time after release of the Pi 4 many people have complained about heat problems (not only at 100% CPU usage, but in idle). My question is now, did the firmware updates from the past fix these heat problems especially the ones which happened in idle?

  • 2
    When I bought a Raspberry Pi 4 Model B, I also ordered a Pimoroni Fan Shim. Ambient in the room is around 18 C and it idles and runs light tasks at about 35 C. Tor proxy, Deluge, Samba. If I load it up it will go up to around 55 C. If the fan is shut down, it idles around 55 and can go to 75 - 80 on load. The Fan Shim cost 9.60 UK pounds. I have all firmware updates. – Michael Harvey Nov 21 at 17:41
3

As of this moment the temperature of my Pi, which is up to date, is idle by 58°C and under constant load of 50% CPU utilization by 70°C. I use little heat sinks on the CPU and the voltage regulator.

2

I'm using it with Raspbian Buster with Desktop and few scripts are running on startup. I2C and SPI both are running continuously and a graphical python script too. Then its temperature goes to ~60 degrees when room temperature is 27-28 degrees.

2

Don't expect there to be a firmware fix for the RPi 4 heat dissipation. That's the way the chip is built: if you want more performance, you need more current and there will be more heat. All single-board computers similar to RPi 4 in terms of performace (Orange Pi PC, Odroid, etc.) need heat sinks or cooler fans, and will go into thermal throttling without cooling.

Practically, RPi 4 is only usable without additional cooling if it sits idle most of the time. Even then, a passive heat sink on the SoC is recommended: the SoC will be substantially cooler and will be able to perform typical tasks like an upgrade without slowing down to a crawl. However, if you plan to load more than 1 CPU core for long periods of time, you will have to install active cooling, i.e. a heat sink and a fan.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.