3TB Drive in PowerMac?

Hey friend, a special driver is not needed for Mac OS. A special driver is not needed for Windows either, it all depends on how you format your drive.

I strongly advice you NOT to add a intenal drive as a backup destination. Get a external drive for this purpuse. If anything goes wrong, its extremely mobile and you can imideatly plug it to any other machine and check your files. Moreover, Apple makes a product called Time Capsule, its available in 3TB, its a wireless HDD for continuous backup with Time Machine, a Mac OS backup application

Ok good, i thought i had to have a certain type of EFI on my mobo in my Windows machine for it to accept a 3TB drive. Well the 3TB wouldn't be the boot drive on the PowerMac, it'll be only for backups. I'm not a fan of time capsule or time machine for that matter; yes it does backup the OS and gives you piece of mind, but i'm the kind of person that if something goes wrong, i would want to do a clean install. But i have several backups of most things, just not my video media collection. Also, the problem that i have faced with external drives being shared over my server, is that when a Windows computer tries to access a file or transfer files, it throws back errors saying that the server disconnected, when it in fact did not. Using the internal drive to transfer the same file alleviated the problem. With that in mind, i would like to stick with using an internal as a backup.