Acer Predator Triton 300 PT315-51 fan spinning faster and slower

Jofer
Jofer Member Posts: 2 New User
edited November 2023 in 2019 Archives
I bought predator triton 300 PT315-51. After instal windows i undervolt, both core and cache -0,15.Bios updatet to newest. I use laptop to broswering internet and my temperatures stay at about 40°C . One of fan doing strange noise. It start spin to 1800rpm and second later go 2000, and second later go back 1800, it do this all time and it sounds like wrmm wrmm wrmm wrmm wrmm wrmm. 
I guess nedd to wait for bios update to fix, or its possible to turn off fans completly when temps stay low?