As per title, I'm after a new PSU to replace my Corsair CX430 Builder Series. I currently cannot determine whether the problems I am having with my system are related to a defective GPU or related to the fact my PSU simply cannot run my system with the GPU installed. I therefore plan to try a higher rated PSU to see if I still get random system freezes. If I still get them, I will know that it's a defective GPU and just return the GPU and PSU, and then look for a new card. Hopefully, however, it will be that I need a more powerful power supply. I am no expert when it comes to PSUs, but would prefer at least a half modular one, and for it to be quiet and of course fit snugly in my case (Antec 300). I was thinking about this one off amazon: http://www.amazon.co.uk/OCZ-600W-ModXStream-Power-Supply/dp/B001GLFD54 Any recommendations?