Vcore is way too high. 20x200 is no good, go 21x191, enable vdroop level 2, Qpi-should be around 1.335v. Vcore for 4.0GHz shouldn't exceed 1.3v if you have a D0 chip and it is not a terrible batch. Try these setting exactly. We have the same board so alot of them should be similar.
CPU- 21x
Bclock-191
Ram- 8x (default timings)
LLC (Vdroop)- Level 2
Vcore-1.26v
QPI-1.335v
Ram-1.64v
Cpu PLL-1.88v
IOH-1.2v
ICH-1.2v
HT-on