What is your CPU? I have a Ryzen 5 5600X and for me I don't experience any sudden peak of usage, and the GPU as well. Either way it is not (or vaguely related) to some hardware issue.
i have a laptop a ryzen "9" 5900hx and a 3050. I was running 3.11.1 so i installed 3.11.3 and only about 10 raids in and it hasn't happened again yet