Thats the model of the pc, not the power supply. The only info I can see on the power supply from any site is the base info, 300 watt psu. I would think it would be safe to try it since its a lower power demand video card.
Plug it in, power it up and load a game and see if it works smoothly. Otherwise, go out and get this power supply if you have the spare funds to do so. If it doesn't work well you will have to anyway:http://www.newegg.com/Product/Product.aspx?Item=N82E16817139003
This will end your doubt and that is what I would suggest to do from the start but if your broke try my first suggestion.