I have an old i7-950 but less than 80 is where I am comfortable at. I typically have RealTemp shutdown my computer if CPU is over 80 and GPU is over 85. perhaps conservative but I like my hardware alive rather than a few extra coins a year pushing my equipment too hard.
ok thanks for the info if i were to leave this mining coins at areounf 40 k/hs overnight or when not at home for a few hours how long will it take to kill my gpu or graphics card ?
If the temps remain at those levels the whole time you are mining it shouldnt kill anything (unless you get a sudden temperature spike and the thermal cut out decides it doesn't want to work but 2 failures like that simultaneously is statistically unlikely).