Hello All, I hope this is the right place to seek an answer to what may be a dumb question. I have a 4,1 mac pro (2.26 GHz eight core) that I've upgraded with 2 W5590 (3.33 GHz Q. Core) processors. My question is : Will the 5,1 update be positive or negative for my system?. I know six core is an option for cpu upgrades,But what about faster ram or overall performance?. Will the W5590 processors still work?. SYSTEM: Mac Pro 4,1 2x W5590 3.33 Ghz 32 GB Ram ATI 5870 ML 10.83 (Photo,Video,General Use) Bootcamp Win7 Ultimate (Gaming,Blu-Ray) Thank You All for any answers you may have.