Well, Anandtech has jumped on the bandwagon for proper power supply reviews, and to kick things off, they take the Silverstone Olympia 650W power supply for the inagural spin. As mentioned before, Silverstone is using two main transformers in this power supply. We have seen this in several other power supplies from Tagan and Cooler Master. But just because a two transformer design is used by more than one manufacturer doesn't mean they're all created equal. There are several ways in which transformers can output different rails. You can, for example, let the one transformer generate several 12v rails and the second one does the 5v and another 12v rail. Or let one transformer generate only one 12v rails and everything else on the second one. The 3.3v rail is, in every case we've seen, generated with a voltage divider from the 5v rail. This is also done with the negative 12v rail from one of the positive 12v rails. Silverstone is running the two transformers in tandem to provide all rails simultaneously.
