I just installed new card in pci e16 slot of new motherboard. Neither Add new hardware or device manager detect it. I cannot try it in old computer as there is no pcie slot. Help. Motherboard-Asrock Conroe945-DVI CPU-pentiumD915 Graphics-Asus EX AX300SE
PCIe x16 graphics card will not fit PCIe x1 slot. I did try the DVI graghics card which came with the motherboard in PCIe x16 slot and it was detected . So I think slot OK graphics card duff. Thanks to all for your input.