Hi folks, Longtime lurker with a first post. I'm getting conflicting info here on whether I can do this or not... A 5,1 2010 dual hex (X5670) complete processor board just fell into my lap that I can get for next to nothing. I have a quad 4,1 2009 (2.93) that I'm wondering if I can stick the dual 2010 board into. I know I'll have to flash firmware to 5,1 but I have read mixed opinions on whether the later board will work in the earlier machine... or a dual board in a single board machine. Any smart people who can help?