The RAM I have listed is, what I believe, to be overclocked to 1.65v from factory. I just recently found out that the Sandy Bridge architecture is most happy when the RAM voltage is 1.5v [or if the voltage difference between the CPU I/O terminals and the Memory Voltage is less than 0.5V]; I'm assuming that the RAM will be fine as the 0.05V is somewhat negligible (but I could be incorrect).
Again, I haven't put the system together yet; if the voltage is going to affect stability that greatly, I'm not partial to sending the memory back and getting some lower voltage units.
Any comments or suggestions would be greatly appreciated.
If the board posts, then I would lower the ram voltage to 1.5 and the speed to the highest default setting, even if it's slower than spec. If the system runs stable for awhile, then you can try overclocking the cpu to get your money's worth out of the ram.
Recently put 2 identical systems together that (not by my choice) had 1.65v RAM to go with i7 2600K on Asus P8Z68 V Pro boards. From what I could see in the bios post build, the Asus UEFI BIOS automatically scales the voltage of the memory back to 1.5v. I was paranoid at the time, had heard many stories of CPUs being fried by high voltage memory, but I can vouch that both systems are flogged all day long encoding video and 3d rendering and neither has skipped a beat.
If you could change it easily I still consider doing it.