Before enable XMP, please update with latest version of Motherboard BIOS and clear the CMOS.

OR, you can manually adjust the BIOS as the memory Specification:
Select the DRAM frequency & adjust the Selectable to expert:

Adjust the Timing

Adjust the DRAM voltage

After you adjust/enable XMP profile, make sure that you save the changes & exit.
Also, you can check the DRAM frequency/Timing by CPU-Z
