First major bump in the road. 
I've been stuck at x52 with a slight bump up in bclk or x53 with a slight bump down in bclk. Max clock of 5.27ghz. After checking the Bot I've noticed nobody else with a p67 UD5 has been benching above 5.3ghz. On the other hand the UD7 has quite a few x56 submissions so hopefully my board bios is limiting my OC and not the chip itself.
In short its looking like the UD5 maxes out at x53 and the UD7 at x56. At least thats what I'm hoping the issue is. Time will tell.
OCM 
