Hey guys, what's up?
So, i just bought a EVGA RTX 2070 Super XC Ultra Gaming and installed Precision X1.
By default, the fans are always off when i'm not playing and the temperature stays between 41°C and 47°C.

When i'm playing, the fans turn on. I played 1hr of Borderlands 3 (on high quality) and it got to 60°C. Within 30s after closing the game, the temperature dropped to 48°C again.
 
Can i left in this default setting ? Is okay for the GPU to keep its temperature at 40°C+ the majority of the time ?

I tought about changing the fans settings, but i wanted the best setting for performance and a good lifespan. I never had a really good/expensive GPU like this one, so i never really payed attention to things like this.
I'm asking this too because my last GPU (Galax GTX 1060 6GB) stopped working out of nowhere, so i gotta a little worried about this things.

Thanks man. Happy to be in the club haha.
Oh, by the way, if my english is a little caveman like, i'm brazilian, so ... 
 
I just set a fan curve kind like the one you said.
I've been reading a lot about fan lifespan too.
 
My fan curve is set to : 
30%fan until 40°C; 45%fan to 45°C; 60%fan to 50°C; 70%fan to 60°C; 80%fan to 70°C; 85%fan to 75°C; 90%fan to 80°C; 100%fan to 83°C;
 
My computer stays on during the entire day, but i don't really play that much, it's mostly for college stuff.
The curve is a little steep, it's cool to let it on this fan setting the whole time ?
 
And another question. What about 'Fan Speed Update Period' (default=1000ms) and 'Temperature hysteresis' (default=0°C) ? Should i change something ?

Just to add, you can change fan curves to steppings and vice-versa by double-clicking inside the fan curve editor.
 
That way the fans won't ramp up gradually, but will only go to your next higher speed when it hits a certain temperature..That can help with noise if it's an issue.