If you’re using a PCIe expansion card to hold multiple M.2 drives, make sure you’ve configured PCIe bifurcation (lane splitting) in the BIOS. One of our writers used a 4-drive expansion card in the past, and three of the drives were only detected after splitting the PCIe lanes from ...
The PCIe controller on each die is only capable of having one 16x connection even though there is 32 lanes available. Die #0: x16 and supports bifurcation for x8 + x8 x8 and no bifurcation support. These lanes are not connected on AM4 boards. x4 and supports bifurcation for x2 + ...