I am using the gigabyte GA-8KNXP mobo. I can install 4 sata drives. I am currently running 2 in the Raid 0 array. Can I add the 2 new drives to the mobo and set them up in the same array without having to re-format the current drives? Or, can I set them up as a separate Raid 0 array. (The 2 new drives are the same model, but they are different models then the existing drives.) Again, I would prefer not to re-format the existing drives.