Hi everyone,
I recently realized that I had my m.2 name drive in my m.2_2 slot which only supports PCIe 2.0, and my SATA m.2 in the m.2_1 slot which supports PCIe 3.0. I wanted to swap the two drives' places, but when I did I no longer booted into windows. When I go into my bios, the SATA drive is not detected (it is my boot drive), but my NVME still is. I tried taking out the nvme and just having the boot drive in, making sure it is in CSM instead of UEFI, making sure it is on AHCI, all to no avail. When I revert back to my original configuration, both my drives show up as normal and I boot into windows no problem.
I have an MSI B450 gaming pro carbon max wifi mobo. My NVME is the WD SN550 1 TB, and my SATA drive is a Samsung 850 evo m.2 (pictured).
Any help appreciated.