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!!!
Nice link thanks you.