I think you got a golden chip.
Try stress testing with OCCT. You will get a chart of temps and voltages.
Under stress testing, 85c. is OK. Under normal usage you will be much less; 52c is good.
I might look at what parameters the automated OC gave you and adjust a bit using bios overclocking. Such automated systems tend to be overly aggressive. I think 1.3v should be lower, perhaps to 1.25.