It's because you're spreading FUD, you talk about underpowered VRMs and stuff like you know how things are supposed to work. There are bad cards, maybe you're so unlucky or maybe you borked them, fact is, you ran the card out of spec and there's a risk in that but somehow you think a high OC is a privilege that should be granted to you and when they die it's defective. There are people running 4870s OCed with stock cooling in hot ambient temps, their cards do not die. They are only defective when stock unmodified cards start dropping like flies.