MSI GTX 1080 Gaming X plus question

[jere__]

I recently bought new GPU and im wondering if its okay when i play browser based games and temps are ~ 43C with fans off? Should i set custom fan curves?(with 1080p)

Other question is i also bought 4K monitor i havent tested it yet, but what are safe temps for playing AAA games with 4K? I got Fractal Design Define C case with 120mm stock cooler at rear exhaust and one 140mm Noctua at front intake

 

[Dunlop0078]

43c is fine that wont hurt anything, the fans wont kick on until 60c. You can make a custom fan profile if you want but it is not necessary. I would try to keep it under 85c with full load, the twin frozr cooler on your 1080 will likely keep it in the low to mid 70s under full load depending on your ambient temp.