Nice !!! I got two as well. It whines only when the FPS's are really really high, otherwise i can't hear the whine if it is or not with the custom bios that you made since the fans are going crazy at 60C.... HAHAHA
I'm thinking coil whine might have been a firs batch issue too don't see it coming up with purchases after the initial pre order
I also owe you some more testing. mind putting together a quick list of what tests with what settings wuld be the most beneficial for you to tweak bios. i noticed you mentioned fan curve which i dont test cause i use a custom, so ill fix that ext round for you.