How to install NVME SSD on older Motherboards PC

H81 Motherboard With Nvme Slot - m2 slot pc In BIOS, go to Advanced settings, then go to Onboard Devices Configuration Look for the PCI Express X4_3 Slot Bandwidth section and set the m2 slot pc High speed ssd m2 disk for pc on white background Solid state high-speed An M2 PCIe SSD solid state drive storage slot on a motherboard

m2 pcie 40 in 30 slot So I have a bit of confusion here on which Slot do I use Motherboard manual says following -For 3rd gen AMD Ryzen Processors, the _1 supports PCIe