Ports SATA3_0 & SATA3_1 are the Intel SATA3 (6Gb/s) ports.
The Intel controller offers greater performance than the Marvell controller.
That's what I'm thinking too. Thanks for all your help.
So, what's the point in buying a SATA III 6Gbs mechanic HDD if it can't spin fast enough for the ports in the first place? My Seagate Barracuda 7200.12 is SATA III 6Gbs... now I'm questioning why I got it instead of a 3Gbs drive.