Can a PCIe graphics card work on a PCIe slot?

PCIe kaart in PCIe slot? pcie 4 0 gpu in 3 0 slot Frage ist, ob die beiden Karten die 32 GBs des PCIe x16 überhaupt ausreizen, oder ob die 16GBs im Slot genügen Kann mir pcie x32 slot Dual Channel DDR5：4*DIMMs XMP Memory Module Support; Next Generation Storage：2*PCIe x4 Connectors; EZ-Latch：PCIe Slot with Quick Release

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