PCIe x16 GPU card into a PCIe x8 slot?

can you put a pcie x4 in a x16 slot   Dan candy mix slot

The PEX4TO16R PCI Express x4 to x16 Slot Extension Adapter lets you install PCI Express cards into x4 PCIe slots in a 1U rack mount chassis

Next Generation Storage：1*PCIe x4 and 3*PCIe x4 Connectors EZ-Latch：PCIe x16 Slot & Connectors with Quick Release & Screwless Design PCIE cards are backwards compatible with the and the slots, but you won't be able to enjoy the full extent of your new PCIE card

how to play video slot machines Some do On some of the motherboards with PCIe 16x slots hardware configured to the full standard, it does As long as the card physically fits in the slot it should work, PCIe is supposed to negotiate the best link over whatever number of lanes are