so if it reached while slightly OCed 85°C (only in stress test) usually don't cross over 83°C, should i use default clocks ? and i am just curious if re-pasting in my case is worth of voiding the warranty (1 year of warranty is remaining). Sending to a local service is too expensive option for me, because for technicians (as i said in previous posts) is these temperatures completely save (at default clocks of course) and it is not covered by warranty
uh? what's not covered by warranty?
if you're ok with tearing down the whole laptop, flip the mobo, and take the fans and heatsinks out for cleaning on your own, just make sure you understand that you're throwing away the warranty. (well, sooner or later your laptop will need maintenance anyway. it's your call.)
the good news is this: if your laptop has no issues since day one, I think it's relatively safe to do maintenance by yourself.