I have been using a 6600GT for some time. No problems, it's been a good card. I use a 600W PSU, but I can't see that you should need one so powerful. If the card has a power socket on it, make sure you connect it to the PSU!
Alienware 17 R4 2017 review
These brilliant Lego posters show just what children's imaginations are capable of
Mac power user tips and hidden tricks
Comment réinitialiser votre PC, ordinateur portable ou tablette Windows ?