I have an Asus Prime B365M-A with a Core i5-9400F. I have a Crucial CT500P1SSD8 NVME SSD as my boot drive in the lower m.2 slot below the PCI-E x16 slot and nothing in the upper m.2 slot above the PCI-E x16 slot.
I want to enable secure boot. I have been told that in order to enable secure boot I need to disable CSM in the bios but when I do that, my NVME disk is totally invisible to the system and the system wont boot anymore.
Questions: 1.Do I need to reinstall Windows to get secure boot working? (and if so, what do I do for that? Do I just need to disable CSM in the bios and then boot from a Windows 10 or 11 install drive and install Windows or is there more to it? 2.Do I need to have my boot NVME SSD in the upper NVME slot (the one above the PCI-E x16 slot and closer to the CPU) in order for the disk to be recognized and booted from with CSM off and secure boot on? and 3.If I need to have the boot NVME SSD in the upper slot for it to boot with CSM off and secure boot on, can I have a second SSD in the lower m.2 slot and use it for data or does the lower m.2 slot not work at all with CSM off and secure boot on?
I have read the manual and all the information online (and done various Google searches) but I can't find any information about just how the 2 m.2 slots on my board work when CSM is off, which slot I need mty boot drive in and which slots I can use a data drive in.
Hopefully someone here knows enough about my board to know what steps I need to take in order to have secure boot working (and whether I can have both m.2 slots populated with NVME drives in this configuration)