I was thinking about getting a GTX 970 and installing it on my computer, but I'm not sure what kind of power supply I would need. Yes, my PC is a pre-built because it was a present from my step-dad and at the time I was oblivious to how a computer operates. Here is my PC link: http://www.newegg.com/Product/Product.aspx?Item=N82E16883103820 Here is another link to the PC: http://compreviews.about.com/od/maindesk/fr/Acer-Aspire-AT3-605-UR24.htm