My CPU suddenly started overheating one day, I tried new thermal paste and the issue carried on, I was using a corsair h40 water cooling unit, I then tried with the stock fan for my AMD FX8150 8 core, I then purchased an arctic freezer pro 7. All 3 are still giving me high temps as soon as anything starts using the CPUs, I've purchased a new case and motherboard and I still have the same issue, is my CPU fucked?