i have asus z77 saber same mb with a 4 by 4g kit 16gbsr if i installed more then two dimms the mb would not post. i would start with one dimm. if it posts i would then flash the bios with the four flash files and after the last one clear the cmos. then put the working dimm in each slot to test the mb if it posts i would then add one more..if it posts with two dimms add the third if it locks up it the ram. if it wont post with one dimm check under the cpu for bent pins or try another stick of ram. (check that the dimm voltage is 1.5v).
I've tried every different possible combination with the DIMMS. The memory light stays on.
I pretty sure there's no pins bent, it's an Intel I7 processor so there isn't any pins to bend. I was super careful to align the chip correctly, and with it keyed there's not much chance of error, unless your in a hurry or working in an area that isn't well lit.
Thanks for the reply though. I think I'll go back and try to get it to POST again by trying every possible combination one more time. Maybe I'll get lucky and not have to ship back theses DIMMs.