can you run pcie 4.0 in 3.0 slot
Mainboard ASUS PRIME B560M-A
Socket: LGA1200 Hỗ trợ CPU thế hệ 11 và thế hệ 10 Kích thước: microATX Khe cắm RAM: 4 khe (Tối đa 128GB) Khe cắm mở rộng: 1 x PCIe 4.0/3.0 x16 slot, 1 x PCIe 3.0 x16 slot, 1 x PCIe 3.0 x1 slots Khe cắm ổ cứng: 2 x M.2 slots and 6 x SATA 6Gb/s ports
MSI MPG B550 Gaming Plus - The AMD B550 Motherboard Overview: ...
The MSI MPG B550 Gaming Plus includes two full-length PCIe slots with the top slot capable of supporting up to PCIe 4.0 x16, and the second slot is locked at PCIe 3.0 x4.
Riser Card IBM 3-Slot PCI Express 3.0 X16 For System X3650 M5
M2_4: PCI_E3 slot will run at x2 speed when installing device in the M2_4 slot. You can switch PCI_E3 slot to x4 in the BIOS, but this will disable the M2_4 slot.