Quote Originally Posted by Salamndar View Post
That's what I think, I have been reding and seems I need to use the 2.5mm washers with the Supreme HF block, I will try that later since I have been planing for a vacation after 2 weeks.

Any way, what is the maximum voltage for the CPU to be under 24/7 overclocking.

I am targeting 4.5~4.7 GHz Hopefully.
That really depends on what you're comfortable with. Some people will tell you 1.4v, some will say 1.45. Whatever you settle on, I certainly wouldn't run 1.5v or higher for more than a benching session.
If I were you, I'd give Raja's Guide a read. It's a little outdated as it was written for one of the earliest BIOSes, meaning we don't have some of the options mentioned and we have some that aren't mentioned, but it's a good place to start nonetheless.
4.5-4.7GHz is certainly an attainable 24/7 clock if you can keep temps in check.