I have a dell dimension 3000 and need to know how to change the video card?

dose the dell dimension 3000 pc have a video card in it that needs to be removed to install one? the card that i want to put in is a ati radeon x1300 pcisff|||first you have to know if your pc has a agp slot or pci-e slot. go to the mboard manual then you can choose and agp or pci-e videocard that you can afford. gudluck