So i recently built a new PC and didn't realize that when i bought the 750i from newegg that i actually received the 650 version, needless to say I'm very ****ed off at this because my 8400 just would not get past 3.82 GHZ which isn't bad by any means but i know it can be better. and now that I'm looking at motherboard is also am noticing the FSB because i can run at a full 1333 FSB but is my RAM going to screw me over and because it just g skill DDR2 PC6400 and now im wondering if i need to upgrade that as well.