Unable to use 2nd NVME SSD

The configuration of the CPU PCI Express bus is statically determined by the BIOS prior to initializaton The BIOS determines the configuration

Instead of connecting it via a SATA III cable, it plugs directly into the motherboard via the PCIe slot or into a traditional PCIe slot using an PCIe

which m2 slot to use 2 slots need a lot more space than SATA ports do, but part of it also seems to be that drives consume a lot more PCIe lanes than SATA ports

which slot machines win the most There are also three different types of “keys”, which purpose is to prevent the use of inappropriate M 1x 2280 NVMe slot and 1x 2230 NVMe slot, $999