hi, i have rx 570 gigabye 4gb. its new. just 1 month old. i overclocked + undervolted it to 1425 mhz at 1140mv. memory running at 2100 mhz yes, its oced to..i get temps around 83 ~ 85 while playing games..my case and gpu are dustfree...i have a godd airflow also. my question is that, are those temps safe? any tips to keep it even cool? and will it affect mygpu lifespan??? wt will be its avg life? plz tell. thank you.