PCIe X1 to X16 Slot Extension Adapter Add-on Cards & Peripherals

PCIe Solder Slots 3D CAD Model Library pcie x1 in x16 slot Any PCI Express card of a smaller size will fit into a larger slot So an x1 card will fit in an x8 slot Please see the Wikipedia article pcie x4 in x16 slot Maybe you have a hair or something else blocking a contact in your PCIe slot Or a bent socket pin Or a defective motherboard Or a defective

pcie 4 card in pcie 3 slot Yes it can be done, provided that motherboard manufacturers provide a space between the slots big enough for your x16 expansion card to fit