I'm sorry to say I'm not the person to talk to about RAID. Never used it a day in my life. As far as the motherboard for two 580 DCu2's, I'd start a thread in Intel Motherboards. The community knows a lot more about different motherboard models than I have in my head. ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)