I have new sata 3 disks that where loaded with Windows 7 64 bit on a motherboard sata 2 only. I am upgrading to a new motherboard with sata 3 controllers. Do I need to reinstall windows 7 to have the sata 3 disks perform as if they where written on a sata 3 controller or will they perform the sata 3 speeds when I reconfigure the motherboard on old sata 2 build even though the disks are sata 3. My windows 7 64bit Ultimate is a retail version. Thank you.