Ok, so i have an IBM ThinkCentre 8173 p4-3.2G 1024mb pc3200 80G SATA / Combo / lan Win XP pro Desktop computer yes i know its old and no I'm not buying a new PC. so i was wondering if its Compatible with a Newer Graphic card it has Intel motherboard / integrated graphics and has a free PCI slot and had a striker on it that reads USITRINIPCI28658M47A don't know what that means at all and so the question stands am i able to install a graphic card and if so could you point me to some that will work im in Canada so i don't have a lot of choices and i cant get 1 shipped to me so I'm looking at Best Buy to being where i would go to get one if my computer is compatible. thank you.