I hope I haven't missed a thread about this, but just in case anybody wants to know: As I've read, there might be warranty issues with those oc sockets that Asus chose to put on some of their boards, the Rampage V Extreme among them. Because those sockets have more pins (2048 iirc) than the standard, 2011 pin specification for the latest sockets, the actual use of such mainboards with Intel's new Haswell-E CPUs would mean they are operated out of officially approved specifications. Long story short, even if you don't oc your Haswell-E, you might lose your warranty with the Intel CPU. So technically, as long as you use such an oc socket board, it doesn't even matter if you overclocked your CPU, you lose your warranty the moment you put it in. Asus, on the other hand, has confirmed they keep up their warranty for the mainboard itself and by it's own. I, personally, don't get the idea behind it much. Why does Asus release such mainboards without any approval of Intel? Why does the CPU have contacts for such unofficial pins? Is it part of the cut-down Xeon thing? As most of the users here would most likely oc their Haswell-Es no matter what, there should be little practical impact on them. But if anybody wanted to keep their new CPU at stock, he might want to consider this. In the article linked below, the German site advises to personally go to your store and try to make them agree to a signed deal that they would take care of any RMA (and probably replacing a CPU) when used under the designed voltage and clocks, as in not overclocked. But of course, there's no way you could force your hardware dealer to sign that without a big piece of luck on your side. Found here, pcgameshardware.de. It's an article in German, and as they proclaimed, they have official info on Asus's warranty and it's unchanged status.