Okay I was able to fix it for those of you having issues using the latest drivers on your XFX RX 480 RS Edition.
Check your GPU bios. I was able to update them to the latest version (using the same card specs) and I was able to get the GPU to be recognized and fully works with Adrenaline drivers.
If you would like details here we go:
How to Upgrade Your GPU BIOS - Graphics Cards - Tom's Hardware
VGA Bios Collection | TechPowerUp - This contains ONLY XFX RX 480 bios updates.
DO THIS AT YOUR OWN RISK. PLEASE READ ALL INSTRUCTIONS BEFORE DOING THE WORK. I TAKE NO RESPONSIBILITY.
The utility provided by Tom's Hardware is pretty safe and will let you know if the bios will work or no before pushing update.
Again...
DO THIS AT YOUR OWN RISK. PLEASE READ ALL INSTRUCTIONS BEFORE DOING THE WORK. I TAKE NO RESPONSIBILITY.