|My advice with the board is to find the thermal-throttling and turn it off in the bios...|
Smart CPU Fan?
Well, I found that not everything was exactly stock. I forgot to re-set the RAM timings.
Now that everything is normal, OCCT passed over 4½ mins w/o problems.
I have the impression that my Corsair XMS can't handle the "guaranteed" 2-3-3-6-1T.
Just a moment for the screenshot...