I just swapped a bunch of new parts into the computer for upgrades. My motherboard and CPU were part of that upgrade. Funny thing is Windows 10 still works, even if it is now not activated because of the change. I currently have an Optane 900P PCI-E SSD drive installed in the second PCIE slot from the top. Top slot is for the video card. I am using a Gigabyte x299 Gaming 7 board. All the PCI-E slots are being used with other cards for this and that. I also have a 520 Intel SSD, a M.2 Samsung 960 drive plugged into the middle M.2 slot, and two regular SATA hard drives. When loading the bios up, the UEFI selection is made for the drives. But the bios is not detecting my Optane drive at all. In Windows 10 it doesn't detect the drive to load the drivers either. Its like the drive is not there. Yet it is fully seated in the PCIE slot. Could there be a conflict with the second PCI-E slot the Optane is plugged into and the SATA ports? Or maybe a conflict with the M.2 slot? Or maybe because there is a mix of legacy devices in this computer mixed with new tech? I just cant see why the bios isn't detecting this drive. The computer store claimed it was read while he had it in his hands, but it surely wasnt working when I got it home. I wonder if maybe the drive is dead and needs to be replaced with the store warranty?