Hello... There are alot of Overclockers sites that have talked about this... Google your CPU/MB and look for a Tweekers site name.
http://www.overclock.net/t/1567/intel-overclocking-guide
Look in your MB PDF/Manual, for the Sections for Manually setting Memory and CPU speed.
It is simple math FSB x CPU multiplier... Start at 2.6ghz 7.5 x 346. Then 2.7 ghz 7.5 x 360 ...etc and watch what your MB reports as your RAM speed too understand the relationship... Your RAM speed will follow the FSB settings... and there will be a point where your RAM will not be able to keep up... and BOOT failure.
You will have to manually slow down the Memory too go any higher.