Hi, I'm looking for a mod/admin who knows EXACTLY what CPUs i can put in my alienware x51 r2. I currently have an i3-4130 with the 240w power brick. I upgraded my gpu from a gtx 645 to a gtx 1050 ti, but now am being CPU bottlenecked quite hard in games like, Just cause 3, Planetside 2, etc. I know this list will only grow as time goes on and games get more demanding so I'd like to upgrade, but I don't have enough money to risk buying the wrong thing, or damaging my motherboard with an incompatible processor. If there are any alienware employees/mods/what have you, who see this, I would really like to know EXACTLY which CPU's are compatible with this system. Thank you for your time.