1.7v seems to be normal for Samsung 30nm to do 1200MHz 9-11-11. I'm more impressed with the Ripjaws being able to do 9-11-10. I'm guessing yours are BFR as I don't think I've ever seen results from CFR being able to do C9 at 1200MHz.
i7 4930K
32GB Corsair Vengeance Pro DDR3-2400C10
Asus Rampage IV Black Edition
2x GeForce GTX 780
Corsair AX1200
Cooler Master HAF-X
Dell U3011
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