The 4000mhz RAM isn't compatible with XMP settings.
The 4000mhz RAM isn't compatible with XMP settings.
In the timings menu, change Gear Down mode to disabled to handle odd latency cases.
Have you performed any checks? Tools like memtest, TM5, or Linpack Xtreme can help quickly identify issues. Ensure your CPU cooling is adequate—your processor will signal if it overheats.