honestly i haven't tested 32m on x99 with those stick's that much as i don't want to push my chip that hard on just water cooling. My last 5820k i killed the imc some how and it would only run dual channel.
When i tested those stick's on z170 thou i was only able to get 32M stable @ 3466Mhz 12-12-12-28 max with the two best stick's no matter what voltage i used i couldent get higher. Weird thing is i can take these stick's all the way up 4300Mhz with 19-21-21- and run a stable 3733Mhz 17-17-17-37-1T @ 1.4v and 500% of hci memtest.
These are the 4x8Gb 3200Mhz 14-14-14-34 G.skill, My 3600Mhz cl16 kit is much better i just need another set that will match what they can do.