Hello all,
I am currently seeing temp btw 70 and 75°C (for 25¨° in the room) ... so close to the 80° limit I heard about.
I have seen and read that the new firmware update from Rasp team is allowing up to 6 deg decrease so I wonder if this is something I can implement over the current Libreelec version I am running : "LibreELEC (Leia) 9.2 ALPHA1 with Raspberry Pi 4B Support"
I have not updated my firmware and I had same temps as you before I added a small 40mm fan on top of the pi.
My idle temps are now around 34-42 C depending on the room temperature.
I've read some various reports about the firmwares pros and cons and decided not to update for now.
The fan is doing a great job and i can only hear it if i put my ear close to it.