I'm building a new computer with DDR2 and I wonder which brand has the best sound? I only have experience with the old DDR so I don't know which is the best.
Anything with D9 chips will sound most excellent, most notably the Corsair Dominator series. The fins on top act like a wick, transferring the negative signals to the inside of the case, rather than into the datastream.
Systems with SD133 seem to be able to reproduce the best sound. The faster transfer of data with DDR/DDR2 systems creates a high pitched whine, that is audible. It's all those 0's and 1's being pushed at high speed though the northbridge. With no active cooling, it creates an aweful distraction