Hope to see an update to this, as I'm planning on getting this board this week. Funny how mac59 got to have 4 RAMs work, considering they're not in the QVL. Though I originally plan to use 2x8gb RipjawsX (F3-1600C9D-16GXM), I'm planning on upgrading later to 32Gb (for Video/CS6 stuff).
Are there only selected GB Z87 boards affected by this, or has it been reported to happen w/ all GB Z87 boards?
Update: I read from a post in tweaktown from someone who had a similar issue w/ his Z87-UD5H, disabled UEFI and got 4 sticks to work. Could this be 1 cause?