I purchased two Sonnet Tempo SSD cards for my new (used) 2010 Mac Pro. I used CC Cloner to clone the boot drive from my 2012 Mac Mini running 10.8.5. While the drive (and the other two SSDs) appear on the desktop, the MP stubbornly refuses to boot from it, choosing instead the hard drive that came with the machine, also 10.8.5. I changed the boot drive in Preferences (as well as using the Option key during boot up and while the drive is highlighted, it isn't being selected. The dock has all the appearance of a new machine. I can't sell my mini until I get this machine working and I have someone set up to buy next week. Any suggestions?