I've checked and re-checked. According to my manual, there is a single Marvell port, which is blue. Then there are four 3Gb/s intel ports, and two intel 6Gb/s beside them...these are gray, and my SSD is plugged into one of them, I promise you.
However, when I installed windows, it was plugged into the marvell, but has since been moved to the Intel.
I will make sure again tonight, to ensure I don't have my wires crossed, and if so I'll eat mywords...but I'm about 99.9% sure that I have my SSD going into an Intel 6Gb/s port.