“Is there a way to adjust the fan curve? It seems to have a very aggressive thermal target resulting in the fans never turning off. They are quite noisy.”
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First, be sure you have the latest version of Windows 10 on the computer. Then update all of the BIOS files and drivers up to this latest version of Windows 10. You can easily accomplish this by scanning the computer with the Lenovo Utility software available on this computer. This system has Lenovo utilities installed to help maintain the health of the device and keep the operating system software up to date. Type "Lenovo Vantage" in the Cortana Search window (if Lenovo Vantage is not installed on your device, you can download the APP and install it now). Select Lenovo Vantage from the list. In the window that opens, click on "Health and Support". In the expanded menu, select "Hardware Scan" In the window that opens, select "Run Quick Tests". This will scan your entire system for errors. Follow any directions that may pop up. If the problem continues after this scan, now click on "System Update". First select Windows update from the menu. Scan your system to be sure you have the latest version of Windows 10. Once that scan is complete, select "Additional Updates". This will scan your device to be sure there are no new BIOS/Driver updates needed. Follow any instructions that may pop up. Once you have updated all of the operating software on the computer, you now can use Q-Control to manually adjust performance of the Yoga C940-15. You can use Lenovo Q-Control to manually control fan performance: ( Fn + Q ) option to change the fan. If the issue continues, we recommend you call Lenovo Tech Support at: 877-453-6686.
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