If you open up a newer Golden Tee, it's basically a bare bones PC, as opposed to the old school Golden Tees that used a PCB or PCB/Hard Drive combo. Pretty much everything is stored on the hard drive; i.e. courses, scores, etc.
I don't know if IT has documented it anywhere, I just googled it and found a forum post somewhere that walked me through it. I think the program was called Partition Magic or Partition Wizard or something. It's pretty straightforward; pick the source drive (the one being cloned), pick the target drive (the one you want to clone to), and let 'er rip. Takes a couple hours depending on your PC, but it makes a perfect, bootable backup of the original HD.