I have a Hitachi 1TB drive I use for playing back 1080P encodes. Just came across the fact that I need to force 3G mode on the drive. It's a DOS only utility called Hitachi Feature Tool. I'm planning to boot into Windows and force 3G mode there, this will carryover to OSX too correct? Also any downsides? I have a 500Gb stock boot drive that came with my 06 Mac Pro too, anyone know if this needs to be forced as well (jumper or software), and how can I verify that it worked in OSX. Any tips or incite are greatly appreciated.