I would put your ram in xmp profile 2. I had a problem like this with this same board was the ram. i have beast 2400mhz ram but will only run in xmp profile 2 2133 which is still good but eh give it a try.
I just changed ram MHz from 1600 to 1333 and so far so good. Refreshed windows experience index 15 times with no restart. I delivered it to my client and hope that it will be ok. Thank you all for the help