|The term CARD is frequently mis-used. Any device adapter that's built into the mboard IS NOT A CARD !|
Is this a laptop or netbook ?
If yes, it's a lot more likely you have a problem with the built in display than there's anything wrong with the graphics adapter.
Try connecting an external monitor to the video port (always plug it in or unplug it when the computer is not running).
In most cases, the video will be fine on that. (If it isn't, you must replace the mboard.)
Some laptops will display on an external monitor without you having to do anything. For others, you need to press a specific key combo to toggle the display to external video, built in video - see the Owner's or User's manual for your model.