I am not an Asus specialist. Have you tried everything on Auto? XMP is still an OC state and that 128G density may require some increase in voltage such as the VDD and the SAV. However, I am a bit rusty on DDR4 since going over to DDR5 so I am not sure. I would suggest you clear the CMOS first and see if everything boots in a default state. You may consider testing the memory via the bios memtest86 before going into windows. Then report back and by then Scone will probably have seen your post to guide you further.