So i just put a kraken g12 on my r9 290x. everything was working fine, but when i went to stress test the card, my temps shot up so i figured the heatsink didnt have good contact with the gpu, so i tightened the screws holding it on. after putting it back into my computer, i have found that no display outputs from my mobo or gpu work when my gpu has power connectors plugged in. ive tried loosening the scews a bit, but it didnt work. how do i fix this?