Once in a while I do have a question myself, today is such a day.. :roll eyes: I finally got a mint condition Mac Pro 5,1 6-core model myself. After a small upgrade it should be ready to rock. Since I have the SSD Evo in my sig, I decided to put it on a Sonnet Tempo PCI card for a boot drive. Here is the question: The OS X on the SSD Laptop system is Yosemite. I would rather love to just swap the drive from the Macbook 2010 into the Mac Pro WITHOUT erasing everything on it - "hence a direct swap". Is this possible or advisable? I would hate to go the proper way and go through a fresh install with TimeCapsule backup and all that "SCM reset fuss" ? Do I have to, -or can I just get away with a direct swap as described, bolting it on the Sonnet and be done with it.. Thanks in advance, this forum rocks!