So I tried numerous time to get the OC of the memory to 3600 from the XMP of 3200 to see if I could get my infinity fabric up to 3900x and it just doesn't work. Whenever I manually put in the numbers spat out to me from the Ryzen Calc it just won't post and defaults to 2133. I've tried 16-16-16-36, 17-17-17-38, 16-18-18-36, 16-18-18-38 and voltage from 1.35-1.4 and it just doesn't stick. I'm using the latest BIOS from Gigabyte F12e. Not sure what else to do! Anyone has this board and was able to overclock properly? Maybe it's the BIOS version? Maybe I'm just putting in too much settings?