Chew (and others too), i post my BIOS set. MB= MA790X-UD4
With first set my PC not post, i must reset CMOS:
How u see, i have here NB only 2400MHz and set problem NB multiplier (higher than 11x not post), i mean bug BIOS


Beacuase at second screen BIOS is every OK, PC boot to windows normaly without problem and NB is here in addition higher: