You could try manually setting the RAM timings instead of EXPO. It might be tricky, but some users have reported success. Just be careful and research safe voltage levels for your RAM.
Hey everyone with similar issues, TheJeroen brings up some good points:Try disabling M.2_2 & M.2_3 slots (conflicts with PCI slots).Test different M.2 slots for the problematic SSD.Check out the enhanced memory profiles in BIOS.If you're dealing with...