1.) What do you plan on doing with this graphics card? Just make sure your desktop doesn't lag or are you going to be gaming?
2.)Watts don't always matter. Would you happen to know the amps on your +12V rail? If not it should say on the side of the PSU.
3.)If you are going to be gaming, the 7300GS isn't going to give you good performance...
Also, welcome to the forums!
