Nice...
by the the new BM1384 chip has a max operating temp of 125c...(weather it's ambient or chip temp not sure) but either way, it can run 60-70c just fine..that's why the software has a stop mining is reached 80c checkbox.

see for your self:
https://www.bitmaintech.com/files/download/BM1384_Datasheet_v2.0.pdfchapter: 4Electrical Character
section: 4.2.
have a nice day

and the vrm's and other components are the same way new = better
DO YOUR RESEARCH PEOPLE!!!
If you actually do some
'research', you may find about the Arrhenius equation and the relationship between temperature and failure rate
http://reliawiki.com/index.php/Arrhenius_Relationship. Failure rate increases exponentially with temperature (in Kelvin). As Dogie pointed out, using the maximum specified junction temperature of the ASIC as if it was the ambient temperature and applied to all components is flawed. I totally agree with Aurel's graphic that you need to get your RMA forms ready (just to be rejected by any sensible supplier who would claim that you operated well outside the specified envelope).
Looks like the OP is a gambling person, according to his banner...
Cheers