3.1Ghz or 3Ghz both are awesome OC man...nice!!!! Well, u shud hav got the DDR3 256mb MErcury, it cost's lesser ~ 3k actually and the DDR3 performs better(256MBDDR3 vs 1024MBDDR2, winner, 256MBDDR3) Never the less, some games require more memory, can come to help. Actually such high amounts of memory helps when u r gaming at resolutions like 1920x1200 or higher, or not much benefit. But never the less, VERY NICE!!!!!!
I think you need a better mobo........ atleast an enthusiast P45 or X48 or 780i for really high OCs...... I have seen ppl with 3.1GHz speed on that proccy. Anyways 2.3Ghz is good..... stock is 1.8GHz I beleive and if so, then its really good. Happy gaming!