My gtx 1070 is a founders edition card so i know it should operate hotter than any other card so when playing rise of the tomb raider on very high settings for 2 or 3 hours i get a max temp of 78 degree which i fell is normal, so should i be worried by this temperature or no? And the ambient temp is 26 degree with fan speed at 40 and 60 i cant remember exactly, so should i remove the card and apply thermal paste? I have cleaned it from 2 weeks when i have bought it from someone, i cleaned the blower fan with compressed air it was not so dirty but i did this in any occasion to not harm it, and i keep my pc very clean with alot of cleaning and i have a cooler master case cm 590 III with filters. The pc is working great with no error or performance issue, but i need to know all of this and if i should remove the card and disassemble it to apply thermal paste and clean the heatsink or is it ok to only clean the blower fan? because i have read that dust wont accumulate in the heatsink they will be stuck in the blower fan. And thank you i appreciate your help and sorry for the long paragraph but to make sure i have said everything and please answer all question thank you.