1. - which board are you?
2. - one of the items on sale cpu-z memory tab, send your memories to find as they work.

I hope, therefore, have helped a little:

As you know when Overclocked, I recommend you try.
core speed 2500mhz
10x multiplier
250MHz bus speed
ht link 1000Mhz (change multiplier 5x to 4x)
increasing voltage (increase if and only if you need to do to maintain stability)
set memos to be stable and usable.

I doubt taking advantage of a configuration profile but I do with the OC clock gene but to reach the 1850 or I will forward them and I have to reinstall windows sera? And memos are 1 to 177 MHz but the other is ddr 333 ddr 400.