I've got a fresh install of Win7 on another drive in my system, trying to install AMD drivers for my R9 295x2. But when I try to install the drivers, it acts like it's installing them, and then when I restart, it doesn't load the start bar, and ctrl+alt+del brings up a black screen. I've tried every version of Catalyst I could find, from 12.x to 16.4, and all give the same result. I have reseated the card and checked the power cables. It's not a problem with the drive, as I have had the exact same problem on 2 other drives. I've tried both installing all other system drivers first, and installing AMD drivers first. I couldn't find anything on google related to this problem.
Gigabyte Z97X Gaming 7 motherboard
AMD R9 295x2 GPU
Windows 7 Ultimate 64-bit
Thanks in advance.