u shouldnt need 1.85 volts thats alot, maybe for like 2.3 or above, its gotta be ur mobo, im having same problems, we got our computers on a crap foundation(biostar), im in the process of looking for a Abit or Asus. I keep trying to figure out why my computers not stable and i keep comin back to the mobo and other people think im wasting my time doin anything on a biostar, they just cant handle anything beyond stock speeds, mine on the other hand cant even handle stock speeds that well.