I am brand new to overclocking, despite the fact I have building my own pc's for the last 25 years. I have looked at a few guides and know I need a lot more info to get where I need to be. However one of the questions I have is this. I am watching CPUID HWmonitor and under powers I am seeing the power go from .75 watts up to 20 watts. Is this normal? My PSU is a 750w corsair and it is about 10 years old now. Should I upgrade this? I am using an I5 4690k and cannot seem to clock at all. I get freezing even at 3.6 Ghz. Any help would be greatly appreciated. Thanks.