I wanted to know if I can upgrade this computer http://www.newegg.com/Product/Product.aspx?Item=N82E16883113259 with a GTX 750 graphics card for improved fps in gaming. I'm hoping to get 60 fps or more for most games on medium to high settings. The power supply says that it has DC OUTPUT: 300W (3.3 & +5V=130W max). My friend is telling me that this computer isn't meant for upgrades. Any feedback is appreciated Thanks for any help!