No fans detected for Lenovo Yoga Pro 9 14IRP8

[std_move]

Hello,

the latest HWiNFO64 version at this time (v7.61 Build 5185) is unable to detect/read fan RPMs for my laptop Lenovo Yoga Pro 9 14IRP8.

Attaching file HWiNFO64.DBG (zip-compressed).

Could you please add support for reading or, even better, controlling fan speeds?

Thanks a lot

 

[Martin]

IMPORTANT - Fan Control and Fan Speed Monitoring on Notebooks

Fan Control is not an official HWiNFO feature and there are currently only very few specific machines supported: - Alienware - all current models should be supported, but there are limitations based on model and fan control mode (EC support disabled/enabled) - DELL - many (older) models...

www.hwinfo.com

 

[std_move]

Ok, I understand you don't intend to support fan control, but what about just reading current fan states/RPMs? Is that something that can be added?

 

[Martin]

As explained above - both fan speed monitoring and control and proprietary and kept secret by the manufacturer.
I'd surely like to add support but can't get required information how to do that.

 

[std_move]

OK from reading the linked post I didn't realize that even reading the current fan speeds is difficult.

Thanks for your patience. This proprietary stuff is really unfortunate, especially given a lot of laptops have fan curves that ramp up too quickly even under light load, resulting in start and stop patterns.