NVME drive not working in second slot of Asrock B450

NVME drive not working in second slot of Asrock B450 nvme slot A slot that can do SATA will have the M key andor B key A slot that cannot do SATA will not have either the M or B key, but others instead nvme m2 slot motherboard 16 are normally dedicated to the discrete GPU, 4 are normally dedicated to an NVME There are 4 more but they service the chipset I

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