Can't fit PCIe card in PCIe slot and fasten down with screw

PCIe slot description pcle slot How to Enable a PCI Express Card Slot · 1 Open the BIOS menu · 2 Select the “Advanced” tab using the leftright arrow keys · 3 Select the “Video pcle slot Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express

pcle x1 slot The Matrox PCI and PCIe technology guide explores the importance of evaluating different slot types when buying add-in graphics cards