I bought a used late 2012 iMac. My existing iMac is a late 2009. I have a SSD in my 2009 computer running 10.9.1. Can I just move the SSD from the 2009 iMac to the 2012 iMac? Do I need to use my Time Machine back up and migrate? I also have a Carbon Copy Clone back up of my 2009.