Quote Originally Posted by st0ned View Post
My IMC ( or board... ) must be really weak, with 4x4GB I can't boot over 2133Mhz, even at 2133 stability isn't possible to achieve, I can only start playing at 4x4GB 2000Mhz it's really a shame.
That is very normal... Z77X-UD5H same issue...
ASRock Extreme6, officially still same issue, unofficial BIOS allows you a little more, but getting such a BIOS, is no easy job.

Z77 BIOS = SH1T, with ASUS as exception, however, Asus just kills your hardware.