Quote Originally Posted by bingo13 View Post
The black slots are required for high memory clocks or stable low latency settings on either P5K board, in fact on the P5K3, the only way to get above 1800 in dual channel mode is to use the black slots. ASUS has the official explanation coming shortly...
Geat find Eva... nice to have the confirmation as well (albeit after the find lol)

I wonder if the same holds true for any of the P5B range? Might have opened up another whole playing field? Can't help wonder and hope someone way above me has a crack at testing it out.