My 2 cents get yourself some removable hard drive frames and use one HDD for important stuff, when you want to play with games and drivers whack in your alternative Hard drive OK you have to shut down your system but it's as good as having 2 PC's. Do a clean install on your new hard drive. Not sure if you can get dma100 compliant frames you can get dma66 frames and bob's you're uncle. Have fun! OK and back up you're system before you upgrade you're mo'bo but if you are confident with what you're doing it should not be a problem.