Your question is Temperature-Control Testing. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You have a sensor that checks the computer temperature every 5 minutes; if it is not too high you lower the CPU fan RPM, and if it is too high you increase the fan RPM. What tests would you do to check that the system is working properly?