Hide graphic card to be able to play Medal Of Honor Airborn?

helloo..so i have Medal Of Honour Airborn and it doesnt run my pc coz of my graphic card :@ (i know i can buy a new one but..)so want to know if there is a way to hide my graphic card or to make it look like a GeForce 6600 or 6400 ps:I have a GeForce 6200 ..thx for your help