Here Is A $5 Fix To Cool Your Raspberry Pi 3

[drSeehas]

... 72-73^F. Somewhat cool-ish. I have no idea what that would be in ^C.

The formula is:
°C = (°F − 32) × 5⁄9
= (72 − 32) × 5⁄9
= 40 × 5⁄9
~ 22°C

[JanCeuleers]

With active cooling, which we really recommend for the Pi 3, the temperature remained at most 50°C.

But Michael still misrepresented that data by saying that the temperature was cut in half. Half of 100°C is around -87°C. Hint: absolute zero is at -273°C.

[Andy]

In testing a Pi 3 today it does seem temperature sensitive. When I build the kernel (4.1.20) using all 4 processors (-j4) it will quickly heat up and freeze (pun intended). When using just a single CPU the temperature is as follows.

Sun Mar 20 09:51:40 CDT 2016
temp=68.8'C
frequency(45)=1000000000
frequency(1)=500000000

With 4 cpus it quickly goes north of 80 and stops. I need to try the same uSD in a Pi 2 but that has always built with a -j4 compile.