BIOS has limited use

[aya200019132155402d5]

Trying to fix an issue with my 13900kf in the MSI Trident X2 13th and trying to disable a few cores to find the problem that happens to a lot of people. I can't seem to find out the option to change between ez mode and advanced mode as I also need to disable XMP. I tried f7, I tried ctrl shift alt and spam f2/f3, no luck. Can anyone help? I also updated my bios fully to the latest software

 

[fauc]

It should be not support XMP function under BIOS setup on MSI desktop system.

Please refer below link first.
Advanced mode should be F7 key.

https://ccc.msi.com/msi_chat_service/get_answer/482