Hello! So i decided to delid my 4670k becasue the temps are terrible and i can barely overclock. Im doing the vice method but it has not been going so well... So i took a hammer and a piece of wood, I used both small and big heavy pieces but i cant get the IHS off! Its stuck! I hit it pretty hard and also tried smaller faster hits but still nothing... Any ideas what the problem is? Should i preheat the CPU or sometthing?