Question Asus Tuf B450M motherboard M.2_2 causing issues

Jun 28, 2021
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I have a rig already set up. Asus Tuf B450M, and an nvme SSD in M.2_1 slot and an HDD connected SATA6G_3 port. I went ahead and bought another nvme SSD and tried connecting it to the M.2_2 slot. When it's connected neither the new SSD or my HDD is detected. I did some research and found that M.2_2 only works in PCI mode. I'm new to this and don't have much idea what to make of it.
 

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