Here are some steps you can take to troubleshoot a laptop’s fan running at high speeds even when it’s not overheating:

1. Check to see if the fan is blocked or if the laptop is dusty or unclean.
2. Update your laptop’s drivers, BIOS, and other software.
3. Close applications that are consuming a lot of power.
4. Update your laptop’s hardware.
5. Replace or repair any broken components.
6. Contact customer support for further help or advice.