Hi
A couple of things for you to check.
1. If using 2 sticks of ddr5 they need to use slots A-2 and B-2 .
2. If you have a NVME/SSD in M2-3 Your main PCIE for your GPU will only run at x8
Both these things can cause some problems.
Hope you get it sorted.
You should turn the FTPM back on too in bios.
A couple of things for you to check.
1. If using 2 sticks of ddr5 they need to use slots A-2 and B-2 .
2. If you have a NVME/SSD in M2-3 Your main PCIE for your GPU will only run at x8
Both these things can cause some problems.
Hope you get it sorted.
You should turn the FTPM back on too in bios.