cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Gusssss
Fanfold Paper
Posts: 15
Registered: ‎12-24-2018
Location: US
Views: 730
Message 101 of 119

Re: Yoga C940 4k - Fan runs constantly

Thank you and excellent post! I will try repasting as well. What do you mean by "reseated the fans"? 

FFW
Fanfold Paper
Posts: 7
Registered: ‎01-02-2020
Location: DE
Views: 699
Message 102 of 119

Re: Yoga C940 4k - Fan runs constantly

Thanks. I just loosened them and realinged especially the exhaust part. Very hard to describe. I think this varies extremely from device to device.

 

Has anbody experimented with thermal pads? I have a few lying around here from my Dell XPS times...

 

Whateveer
Fanfold Paper
Posts: 13
Registered: ‎12-19-2019
Location: PL
Views: 676
Message 103 of 119

Re: Yoga C940 4k - Fan runs constantly

In my case whole L 81Q9 module has been replaced by Lenovo. I think it's even worse than before. Waste of time.

Gusssss
Fanfold Paper
Posts: 15
Registered: ‎12-24-2018
Location: US
Views: 669
Message 104 of 119

Re: Yoga C940 4k - Fan runs constantly

Are you saying you sent it to warranty, they changed the fans, and it's still the same thing?

What does that module mean? 

Highlighted
Whateveer
Fanfold Paper
Posts: 13
Registered: ‎12-19-2019
Location: PL
Views: 658
Message 105 of 119

Re: Yoga C940 4k - Fan runs constantly

Yes, I sent it to warranty and according to the summary I received, they have replaced whole thermal module (fans and radiator). I But it still emits high-pitched sound. But I can hear that it differs from the laptop's position. When I place it on something soft that covers the bottom grill, then it gets deifnitely quieter. Sometimes when I work the sound is not annoying, but after some time it starts to be.

 

I checked again and covering right part of the grill (left when upside down) reduces the noise greatly as mentioned in previous posts. Maybe it's not the fan issue, but just poor design of a grill? I don't know what to think anymore. 

Meez
Fanfold Paper
Posts: 5
Registered: ‎01-05-2020
Location: MY
Views: 200
Message 106 of 119

Re: Yoga C940 4k - Fan runs constantly

So basically there is no way to fix this for now?

 

And also the Lenovo Vantage is such a horrible application. Should have the option to turn off the intelligent cooling mode and opt for the quiet mode.

liopag2
Punch Card
Posts: 71
Registered: ‎12-08-2019
Location: US
Views: 152
Message 107 of 119

Re: Yoga C940 4k - Fan runs constantly

New BIOS update is out, has lowered my idle temps to almost always >39 degrees on battery. This should also help for people that fans turned on constantly.
Meez
Fanfold Paper
Posts: 5
Registered: ‎01-05-2020
Location: MY
Views: 138
Message 108 of 119

Re: Yoga C940 4k - Fan runs constantly

I don't see any update though
liopag2
Punch Card
Posts: 71
Registered: ‎12-08-2019
Location: US
Views: 125
Message 109 of 119

Re: Yoga C940 4k - Fan runs constantly

Whateveer
Fanfold Paper
Posts: 13
Registered: ‎12-19-2019
Location: PL
Views: 117
Message 110 of 119

Re: Yoga C940 4k - Fan runs constantly

Bios update didn't help much in my case, temps around 47°C in idle. I'll also test that tomorrow during work.

 

I'm still waiting for the bottom cover replacement, as it came from tech service dented and with signs of prying it open. Should've expected that.

And we're back...

Move delayed but still coming

Learn More

Check out current deals!


Shop current deals

Top Kudoed Authors