C2D Blackbook here with the whine as well. It is definitely related to the AC power going into the unit (silent on battery). Because of the pitch, it won't be heard by everyone.
The fact that it doesn't whine whilst on battery leads me to believe that it has nothing to do with the actual processor(s), but the inverter on the planar board (motherboard).
I really can't see how or why Apple even remotely thinks this is acceptable.
The fact that it doesn't whine whilst on battery leads me to believe that it has nothing to do with the actual processor(s), but the inverter on the planar board (motherboard).
I really can't see how or why Apple even remotely thinks this is acceptable.