This is very interesting!

So the 3850 has a 2D value of 1.014V ..and the 3870 1.241V ?

They both run at 300MHz in 2D, so why can't we have the lower value on a 3870?

If I try edit the bios to my 3870 and the voltage for some reason is to low, would that mean that I can no longer boot up the card again...meaning bricking it?