Legion Fan Control
What is LegionFanControl?
Change Legion Power Mode & Windows Power Plan
Modify the Fan Curve to ignore overly aggressive GPU temperature response
Engage maximum fan speed mode
Change Advanced Thermal Optimsation without needing to reboot
Lock the fans to the current speed
Enable/Disable dGPU TDP Boost, keeping your dGPU at base TDP specs
Enable/Disable CPU Boost, keeping your CPU at base TDP specs
Read current CPU temp and dGPU temp, according to the embedded controller
Read current fan speed (%)
As of this writing it is not possible for complete manual control of the fans, however LegionFanControl can lock the fans to work with the below features:
Fan Speed Lock Hunter - Attempts to locks to the target fan speed if reached after briefly engaging maximum fan speed mode
Auto Fan Lock - Lock and unlocks the fans depending on current sensor readings and user-defined targets.
If your current fan speed is equal to or below your Low Fan Speed Target AND the temperature is below your Temperature Threshold, it will lock the current fan speed.
If your current fan speed is equal to or above your High Fan Speed Target AND the temperature is above your Temperature Threshold, it will lock the current fan speed.
Known Compatible Models
Known Incompatible Models
Y740 (all variants)
If your model isn't listed above then LegionFanControl will attempt to discover if your laptop is compatible. If you have a 2020 or newer Lenovo Legion laptop, please consider joining the Unofficial Lenovo Legion Community Discord to help add official compatibility.
LegionFanControl is provided "as is" without any warranty. Use of LegionFanControl is at the end-user's own risk.
The developer will not be held responsible for any damage caused as a result of installing or using this software.