I had to put the PCI Express Frequency to Auto. I have the USB Legacy thing disabled also. So far on this 805D & DS3 it is prime stable & no Cold boot resets for 3 times in a row now (knock on wood). This is easily the most finicky board I have had in 16 years of building systems.... This is my second board & it has not been any easier to setup on an overclock. Stock is fine.