Motherboard does not detect ssd NVME PCIe

PCIe 4 NVMe drive in a PCIe 3 slot pcie 4 nvme in pcie 3 slot You're referring to NVME based M2 SSDs, correct? But yes if the SSD is PCIE spec then of course the speed will be less when used on PCIE pcie 40 gpu in 30 slot Yes, PCIe standards are thankfully backwards compatible, meaning that a PCIe device will work in a PCIe slot, but it will only be able to reach PCIe

pcie x1 in x16 slot 4-3, per single PCI Segment Group show less , ECN, November 18, 2018 Errata This optional normative ECN defines 3 new PCIe trans view more This