It looks like the PC doesn't even have an AGP slot. And a PCI-Express card will NEVER fit or work in a PCI slot. IMHO it is time for a PC upgrade because from the look of it the 64MB integrated card has reached its EOL and any more investments in that PC will be a waste of money. Better start saving and build a new PC. Even a 500$ build will suffice for that game and even more GPU intensive current games at medium-high details.