When I start to overclock, I follow this process and I appologize if it is rhetorical.
Overclock the CPU to the highest frequency I can get, in this CPU's case I picked 1.5v as my max 24/7 voltage since it is under water.
Back it down to stock and overclock the NB to what I feel will be the 2 clocks that should be optimal for my memory. In this rig I thought that would be either 2800 or 3000.
Apply both at the same time, and if it fails I increase the NB in the smallest increment I can.
Doing it this way tells me the CPU is capable of both overclocks. Whether they will do it together is another test in itself, but in my past overclocks, the NB voltage is usually what needs changed to stabolize both. I seriously think the board just won't handle it though, especially at 100% load on both at the same time.
It is something safe to try though. Take the CPU down to stock and see if you can get the NB to run 2800. I bet it will and that would confirm the boards VRM is the problem IMO.Edited by BWG - 7/18/11 at 6:06pm