Sounds like memory to me too and that it is Vengeance comes as no surprise. I presume you are running two kits? Are they at least separated...one kit on the red slots one kit on the black. If you are trying to run them on xmp I would try to run them manually (entering the timings yourself)and maybe increase vdimm and or VCCSA/VTT a bit.
Have you tried running memtest on the RAM just to eliminate a bad stick.. USB inslaller from here http://forum.canardpc.com/threads/68...etatesters-%21