i screwed my pc open and just wrote what is on the power supply
it's an antec model BP500u
ac input:100-240V~,8-4A,50-60 Hz
anything else you need?
Namely, the power output, in amps, provided on the +12v rails. On your PSU, there should be TWO such rails.
However, by my guess, each rail probably has 14-16 amps anyway, for a total of around 30 or so; that's 360 watts of +12v power, which is plenty enough to handle your CPU and video card. This guess is reliant on the fact that it's an Antec power supply, which is known as one of the better makers of PSUs.