Do you mean when set AI Overclocking to AI optimized in bios, it shows x54/x43 multipliers on the P/E cores but it never exceeds x52/x38?
How do you check the actual multipliers?
If you restore bios to all default settings and only set AI Overclocking to AI optimized in bios, is it the same?
For NVMEs, which M.2 slots do you install the SSDs in?
If you change the disappeared SSD to other M.2 slot, does it show in windows?
May I have the bios version?