I have a Crucial P5 1TB PCIe M.2 2280SS SSD (PCIe Gen 3) drive that I expected to use. Sure it’s not as fast as Gen 4, but I had it on hand. However, upon booting, the M2 drive is not detected. It’s not listed in the BIOS nor in the Boot Manager.
PCIe 3 & 4 are backwards and forwards compatible, so that shouldn’t be an issue. I’ve plugged the M2 into another PC; Windows boots and everything is visible.
Is there something blatant I’m missing? Thanks.
I have found that the M.2 is shown under the Security section of the BIOS, but that it is. There is not an EFI boot list.