.A0E i had no problems all the way up to 5.3ghz pll was left on auto just set 50x / 1866mhz xmp and 1.4vcore
http://valid.canardpc.com/show_oc.php?id=1686527
i put the post on the msi fourm the issue appers to be intel ME related and not bios
problem is now both the bios's on the gd-80 are crouupt and im awaiting a blank chip so i can get it working and finish my testing