All of my motherboard's PCI Express x16 slots stopped working

Have you ever thought if you can plug PCI Express cards into x16 lane slot? In this video

x8, x16 PCIe Gen 3 bandwidth, 1 GBs, 2 GBs, 4 GBs, 8 GBs, 16 GBs PCIe Gen 4 Does PCIe Gen 4 make PCIe NVMe SSDs faster? PCIe Gen 3 was unable to

pcle x1 slot An x16 slot accepts up to 16 lanes, but fewer lanes can be assigned Figure shows the concepts of PCIe lanes Notice how one lane has two

pcle slot The 'x16′ indicates the maximum number of PCI Express lanes supported and thus, the length of the slot As version , each lane provides