PCI-e x16 for NON-video cards?

can you put a pcie x4 in a x16 slot   Dan can slot machines be adjusted

Some do On some of the motherboards with PCIe 16x slots hardware configured to the full standard, it does

PCIe will always run on the lowest common denominator If you put a gen 3x16 card in a gen 5x4 slot for example, it will run at gen 3x4 In your PCIe x16: This is the largest PCIe slot with 16 data lanes PCIe x16 You can find these platforms in the FG2 rugged servers and are available today

my slot games 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  Yes, it works just fine, obviously it's only work at x4 speed I would check whether the x16 slot can handle the power load of the