I have asked this question before, but I would like a solid answer. I am looking to have 2 Radeon 6950 overclocked slightly.
Will the Corsair TX750 V2 (http://www.newegg.com/Product/Product.aspx?Item=N82E168...) power my system. I have looked at PSU calculators and some say its enough and others say I need a whole lot more.
AMD FX 8120 overclocked to 3.9GHz
(2x) XFX Double D HD-695X-CDFC Radeon HD 6950 2GB
(4x) 4GB 1600MHz Memory
250GB Hard Drive
Hyper 212 Evo
6 Case Fans
Memory Card Reader
Keyboard, Mouse, Monitor
I don't have the second card, I plan on getting it next Christmas, if my PSU is not enough, please suggest a good one that will last a long time, and maybe power two of next generation graphics cards (7970 or GTX 600 Series when they come out).
The inherent nature of overclocking pushes parts beyond factory specification. Increased stress on your components decreases longevity/life of those components.
I typically only OC when my PC no longer performs to a level that satisfies me. At that point an OC extends the overall life of the system. In other words, I can delay upgrading the system by getting more performance out of the components I already have.
Have you already bought this system? If not, then I would seriously consider going with a Sandy Bridge CPU. An i5 2500K is only slightly more than that 8170. If this is primarily a gaming rig, then the 2500K dominates this price range.