I have a HP pavilion a250y and I want to get a new graphics card. I found this one, http://www.newegg.com/Product/Product.aspx?Item=N82E16814134157, it says it uses PCI Express 2.0 X16. My computer says It has PCI but the card looks like it will fit in. I am wondering if it will fit in because I don't want to buy a graphics card and have it not fit in by computer.