It was kind of a tight fit, but it works. Did nothing to the unisink or mounting bracket, just followed the instructions and used this guide as a reference to check my placing of the heatsinks and to see if everything was in place. The only difference is that I used the AMD card screws (middle screws on the first picture) to screw in the mounting bracket. From what I noticed with the NVIDIA card screws is that there was space in between the GPU chip and the unisink and the only way to get them closer was to use the other screws. Might not be the case with everyone though.