Not sure if someone mentioned it but the "newest' (1.4) BIOS regulates NB speed instead of HT,so setting "HT ratio" in bios, actually sets the NB speed, and HT stays at default, but can be changed in windows with AOD
If this is true i am surprised we all missed it and I tested 1.4 and 1.41.

is anyone here on 1.4 or 1.41 and able to test this with a 9850?