![]() In the blog post I linked to earlier, I came to the conclusion that you must use active cooling for the Raspberry Pi if you run it inside the official Pi case. I also wanted to see what kind of affect the ICE Tower's massive heat sink would have on the Pi's thermal capabilities under load-with and without the active cooling provided by the sleek icy-blue fan it comes with! How I tested I wanted to see if, after the firmware update, this was still true. I hate when you read an article about benchmark results, and you never see the methodology. ![]() That's not science! I wanted to make a completely repeatable and automated process to test and graph the temperature results, using stress-ng to put load on the Pi, and the onboard frequency, throttling, and temperature monitoring, to put the Pi through its paces. It's also important to list the details of my test environment, and the actual hardware used: Waits another 2 minutes to see how the CPU temperature backs off after the stress test.Runs stress-ng on all 4 Pi CPUs for 5 minutes.Waits 2 minutes to establish a baseline reading.Begins logging temperature, throttling, and CPU frequency data every 5 seconds.Therefore, I wrote this Raspberry Pi CPU temperature and throttling test script, which does the following:
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