H50 is a pretty poor performer (5C worse than Megahalems for example) though I wouldn't account all your problems to that. The H50 also decreases case cooling efficiency since you are blocking an exhaust opening w/ a radiator. I'd have to put most of the problem on a bad install .... w/ TIM application being most suspect.
AS5 might be contributing to the problem if that's what you used as it has a 200 hour curing time. I suspect poor application of thermal paste as probably the biggest culprit
iv seen this with a few amd's after a few years they seem to almost fail, put out too much heat yet function as normal provided you can cool it - its almost as if it overvolts its self or voltage "leaks" through the chip causing excess heat even idling etc
then again you may just need a bios update, or are reading the wrong temps or there off by 10*c etc
Put the Red Neck fix on it. lol
Cold here in Maryland and 12x12 room I am in is warm so I ran a 4" duct through floor to basement window and put a cheap 27 dollars Bathroom exhaust fan on it
Hooked up to switch up in room on/ off
Temps Now are 27=CPU
now cores ?
Everest is reading 50 still
But Pc Wizard is reading 32-33 40-45 when gaming
My Bios is updated so i Clocked 2.8 Processor to 3080 almost 3.1 Ran sweet for hours Gaming on Black ops