Yes, you can install a 1x PCIe card into a 16x or 4x PCIe slot

‎PCIe x4 support can you put a pcie x4 in a x16 slot 2 devices are x4 or less lanes PCIe devices Don't matter if the adapter PCB physically fits a x4x8x16 slot, the is and always will be x4 can casinos change the odds on slot machines You can insert a PCIe x1 card into a PCIe x16 slot, but that card will receive less bandwidth Similarly, you can insert a PCIe x8 card into a

candy baby 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