I have this motherboard https://www.digitec.ch/de/s1/product/msi-mpg-b550-gaming-edge-wifi-am4-amd-b550-atx-mainboard-13299616 with 2x PCIe x16 and 2x PCIe x1. The network card does not fit into the x1. One x16 slot is used by the graphics card (RTX 3070 TI). I have inserted the network card in the other but it is not recognised. The BIOS also shows that none is plugged in. I have already tried several BIOS settings, plugged it in again etc., updated the BIOS, all without success. I am desperate and have already read through 100 forums. I hope someone can help me here. Can I not use the card in the slot at all? Or is something defective?