I think the issue here could well be voltages.

Unfortunately i have everything set to stock right now but with the lovely ASUS DIGI+ Power Control makes it very hard to get stock voltages.

It has a unique way of doing things but is also the best board for the job.

I think it's very possible that under some form of C states functions of the CPU the V-DROOP controlled by the VCCSA Load-Line Calibration can-not correspond with the required voltage quick enough thus creating an un-correctable hardware fault.

Now i know it's highly un-likely that it's a hardware fault, i believe more to be a voltage configuration issue.

I will report back with my findings in here and perform some detailed tests so all users that are having these common issues can hopefully get them resolved as well.