Top uses of the PCIe 1x slot on your motherboard

Dual PCI Slot To PCI-E 1X PCIe X1 Adapter Expansion Riser Card pcie 1x slot 2 Answers 2 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 pcie 40 in pcie 30 slot Here's the best way I've found and seen of modifying a PCIE x1 slot to fit a full-sized x16 card

pcie expansion slot It is a serial bus point-to-point protocol General processors use the smallest PCI x1 slots Graphic cards use the longest PCI x16 slots PCIe x1 interface has