Hi,
this is how to silence your laptop.
1. Download Notebook Fan Control : https://github.com/hirschmann/nbfc/releases
2. Install it and launch it
3. In "Selected config" menu, select profile for Asus Zenbook UX301LA.
4. Set "Fan control service status" to Enabled.
5. Right click on bottom right icon for Settings > Check Start with Windows
NB. During summer, you may have to Disable Notebook fan control for a correct heat evacuation.
If you experience weird laptop behaviour, disable it too.
Another important thing is to flash latest Bios available for your laptop.
Enjoy ;-)