Video CArd not detected

Here is goes:

when I turned on my pc, monitors says "no input detected" . At first I think my monitor was the problem but when I connect it to my laptop it works. So I thought the problem is my video card but I inserted my old video card and it is still not detected. So I think its not the video card problem. Right now I just using my MoBo Graphics..

any replies would be much appreciated..thanks!

MoBo : MSI MS-7267
Video Card: GeForce 9500GT

You can try the same cards in another Computer(if possible). If it works then it is the slot on the MoBo and if it doesn't then its the cards.

@Champ2010: Thanks for the reply! I will try it. still asking friends if we have the same slot. but the Video card's fan was still working. I will still try it..Thanks again!