Games Won't Start After GPU Change

NukaB

Distinguished
Jun 4, 2013
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I'm in a massive pickle here; I recently went from a 570 to a 670 FTW edition GPU. I installed it all fine, with my 600W PSU, more than enough to power it. However, whenever I go into a game (as in, the actual 3D graphics show up), the GPU shuts down completely. Games also load up incredibly slow and even getting to the point where they crash is hard.

My E: HDD is also making an awful ticking noise...

EDIT: I put it under Kombustor. It ran fine for 5 seconds and then all of a sudden my fan went insane and it was 100% along with my PSU