CAN I GET PCI GRAPHIC CARD OF NVIDIA ? Please tell me its price list.?

I Have tried all pci express card on my motherboard and i had also connected the vga cable to the monitor. I had put my card in correct slot named Pci-e X16 but there is no response from the computer . it shows me "no-input" signal . dear friend let me give you some information :- I hve only one Pci express slot on my motherboard and i think that it was not working and rest of them are pci slots . so i need a Pci video card which will fit in that slot.if u need more info bout my computer pls ask me! (can pci express slot can be repaired) .|||yes it can be repaired, send to the vendor under warranty.