-4 dimm 16gb quad channel Samsung RAM. I can't boot up at 2400mhz. I tried 10-10-10-28 2t, 11-11-11-28 2t, and 10-11-11-28 2t with no luck. Had the vccsa set to 1.100 and ram voltage to 1.6. I can boot up at 9-10-10-21 2t at 2133 speeds though.
Should you be using higher than 1.5v for RAM voltage on Ivy/Sandy Bridge? I think I read somewhere that above 1.5v is not a good idea.