A graphics processing unit, no different from the microprocessor installed to your motherboard, sometimes executes tasks that cause the component to generate a lot of heat. NVIDIA often installs integrated fans on their mid-grade to high-end GPUs to keep the components cool; the fans turn on whenever the device starts to run hot, thereby reducing the chance that the GPU will overheat. You can use the NVIDIA Control Panel to manually configure the operating speed of the fans, but if your computer shows signs of instability when you play games or run other graphics-intensive software, you should let NVIDIA adjust the fan speed automatically.
Press "Windows-X" from the desktop and then select "Control Panel" from the pop-up window.
Type "NVIDIA" into the search box on the top right and then select "NVIDIA Control Panel" from the results.
Expand "Performance" and then click "Device Settings." Click the "GPU" tab and then choose the appropriate graphics card from the "GPU" drop-down menu.
Select "Automatic Control" from under Cooling and then click "Apply" to save your changes.