Hey... I just bought a mobo (IS7) from someone and it came w/ the stock northbridge cooler on it. He sent a newer abit HSF along too so I need to switch them. I have a couple questions though... what can I use to clean the northbridge? It has thermal adhesive (i think) on it that i'm guessing i need to get off first. Once that's done... can I just use arctic silver and put on the new hsf or do I need some sort of thermal adhesive also? Thanks!