Cool, so it should be fine to push to 5ghz without stripping off the mobo blocks and repacing with waterblocks?
Also is the heat output from the sandybridge chips high? I have the q9550@3.82ghz and is 45nm and this is 32nm. I think at stock which is 3.5 it should be cooler than mine overclocked. I have 1ghz overclock on mine btw and temps never really go over 70 on load so i think the sandy should be comparable with overclock to 4.5-5ghz maybe?