I have a black phat (Elite I guess) Xbox 360 console. I had a 20GB harddrive from my original standard white phat 360, which I swapped a 250GB harddrive into the existing enclosure. The problem is the console is rather slow to boot up. Games run fine any everything, it just takes several minutes to get to the dashboard and whatnot when I turn it on. The problem is definitely with the harddrive, as the console boots up perfectly fine without the drive attached. I believe it boils down to the fact that there's supposed to be no such thing as a 250GB phat 360 harddrive. Thus, the existing enclosure, (which came from a 20GB drive--I'm sure this doesn't help the matter), is the likely causing a bottleneck in terms of HD read speed. What is the best option for using a 250GB harddrive with a phat 360 console? Should I just use an external USB enclosure?