Hi, Found this, more HERE. This HERE says you should have SATA 2 + 3. The reason why my SATA 2and 3 are greyed out, is the fact that there are no connectors on the mobo. Also make sure you have the latest BIOS. If your SATA 2 + 3 are greyed out, it might be down to your BIOS or your chipsets. Have you done a reinstall using your disc's, if so, then your drivers were put on in the wrong order.
When you install a drive, you connect two cables—a DC power cable and a data cable—to the back of the drive.