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Xeon X5677 – 3.46 GHz
Xeon X5680 – 3.33 GHz
Xeon X5667 – 3.06 GHz
Xeon X5670 – 2.93 GHz
Xeon X5660 – 2.80 GHz
Xeon X5650 – 2.80 GHz
Xeon E5620 – 2.40 GHz
Xeon X5550 – 2.66 GHz
Xeon E5540 – 2.53 GHz
Xeon L5520 – 2.26 GHz
Xeon E5506 – 2.13 GHz
Xeon L5506 – 2.13 GHz
Each CPU is fed with an EPS12V connector and a six-pin video card power connector (PEG). You also need to install one six-pin video card power connector to provide more current to the PCI Express x16 slots. Therefore you need three six-pin video card power connectors and two EPS12V power connectors just to install the motherboard, plus connectors you will need to feed your video cards. Therefore you will have to spend some time researching for a power supply that will fulfill your power needs, not only in terms of labeled power, but especially in number of available connectors. You can discover the power supply wattage you will need by using this calculator. EVGA is saying that they will launch a 1,200 W power supply also called SR-2 to match this motherboard.
Read more at http://www.hardwaresecrets.com/evga-classified-sr-2-motherboard/#pfTdGh5YASvisrBe.99