PC doesnt boots when 2x gen 4 NVME ssd are installed

What are the Differences between Gen4 and Gen3 PCIe SSDs? will gen 4 ssd work in gen 3 slot 2_1 slot on my ASUS ROG Strix x570i mobo The only thing I can find in bios is set to _1 link = Gen 4 Yet the SSD is still running at Gen 3 williams slot PCIe Gen4 is the fourth generation of the PCI Express specification As the subsequent iteration of Gen3, Gen4's data transfer rate is twice that of PCIe Gen 3,

willis creek slot canyon trailhead photos NVMe Drives can use 4 PCIe lanes, which means a theoretical maximum speed of Gbps Irrespective of the form factor, NVMe