Thank you for your collaboration, I appreciate you take the time in posting in the original thread.
I understand the issue is not related to temperature spikings per the description you provided.
Hopefully there will be an update any time soon.
Just out of curiosity have you tried running something like HWinfo to see what your Vcore is during the tests?
I ask because some Gigabyte motherboards apply overly high voltage to the CPU when on auto. Most of these boards can be fixed by updating to the newest bios.
I just wanted to see if this was even on your radar of something to consider. If you have the time just run a quick p95 with HWinfo running and let me know what your Vcore value is. For a stock CPU for example this would generally be in the 1.20-1.24 range. The temps you are seeing make me suspect you might have one of the old 1.30+ values which will make a CPU heat up pretty quick.
Worst case scenario I am incorrect and you waste a few minutes of your time, but if I am correct we can have a solution to your problem pretty much immediately.