ghalfacree wrote:The new BCM2837 system-on-chip gets far, far hotter than its predecessors. This image was taken using a calibrated Flir thermal camera while the Pi 3 had been at 100% CPU load - but no GPU load - for five minutes, and registered nearly 100°C (212°F). I confirmed the temperature with a K-type contact probe, and also by poking the chip.
Don't poke the chip. It hurts.
I'd recommend picking up a small heatsink for the Pi 3, the first Pi that I'd actually say is worth doing so, and if you're reusing an existing case keep an eye on the temperature - you may need to make a cut-out to increase the ventilation, especially if you're using an enclosed slice-style case like the original-design Pimoroni PiBow (which has been modified with a heatsink cut-out specifically for the Pi 3.)
Oh, and don't trust the built-in thermal sensor: when that picture was taken, the internal sensor was happily reporting sub-80°C (176°C) temperatures.
Original post here: https://www.reddit.com/r/raspberry_pi/c ... ource=link