Yes, by default the GTX 10 series cards' fan doesn't come on until it reaches (between 60-65C). You can use a third-party program to control the fan speed manually or set a custom fan curve.
EVGA Precison X - https://www.evga.com/precisionxoc/
MSI Afterburner - http://www.guru3d.com/files-details/msi-afterburner-beta-download.html