|"black and white wired plug"|
Assuming the wires are colored correctly, the black wire is ground, the white is -5v. I have no idea what that may be used for? I doubt it's for the video card. Where are these wires & what type of plug are they connected to? From what I could find, the Ranger 200 is a Geforce 8400GS made for HP. It's is a very low end card that requires no additional power connection.