Seems to be running great now! No 127 degrees, so far it's 30 minutes with 40-60 degrees on all chips like before, and it seems to be ok, this is the longest it ran before crapping out on me.
I hope this isn't just a coincidence with your voltage becoming stable on random bases, but either way, should the problem appear again you have to measure the voltage, don't count on what your electrician tells you unless he is there measuring it live, get a
plug and play voltage meter and measure the voltage consistently if it goes anywhere above 240v then that will likely cause issues.