[GH-ISSUE #182] I hear the fan although NBFC reports Current fan speed 0% #164

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opened 2026-02-26 00:31:54 +03:00 by kerem · 4 comments

kerem commented

2026-02-26 00:31:54 +03:00

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Originally created by @MichaelRumpler on GitHub (Jan 31, 2017).
Original GitHub issue: https://github.com/hirschmann/nbfc/issues/182

I always have my notebook running beside me although most of the time I work on another computer. The notebook is on with only Outlook and Chrome running, but the display switches off after a few minutes.

Sometimes the fan of the notebook goes on and I check what it does. NBFC reports the temperature still below 50° and the target and current fan speed at 0.0% although I can hear that the fan is on (and sometimes quite fast).

I use a Asus Zenbook Flip UX360UAK with Windows 10.

Originally created by @MichaelRumpler on GitHub (Jan 31, 2017). Original GitHub issue: https://github.com/hirschmann/nbfc/issues/182 I always have my notebook running beside me although most of the time I work on another computer. The notebook is on with only Outlook and Chrome running, but the display switches off after a few minutes. Sometimes the fan of the notebook goes on and I check what it does. NBFC reports the temperature still below 50° and the target and current fan speed at 0.0% although I can hear that the fan is on (and sometimes quite fast). I use a Asus Zenbook Flip UX360UAK with Windows 10.

kerem

2026-02-26 00:31:54 +03:00

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kerem commented

2026-02-26 00:31:55 +03:00

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@m-tach commented on GitHub (Feb 17, 2017):

I have the same issue on UX32LN with Win7 64bit. Fans are constantly running on 100%, even with NBFC enabled and set to 0.0% (and core temp ~30C).
Has anyone faced this issue before? Is it more likely to be HW or SW causing it? I have tried the regular things - reinstalling, disassembling chassis + new thermal paste, flashing BIOS, building under Linux.

@m-tach commented on GitHub (Feb 17, 2017): I have the same issue on UX32LN with Win7 64bit. Fans are constantly running on 100%, even with NBFC enabled and set to 0.0% (and core temp ~30C). Has anyone faced this issue before? Is it more likely to be HW or SW causing it? I have tried the regular things - reinstalling, disassembling chassis + new thermal paste, flashing BIOS, building under Linux.

kerem commented

2026-02-26 00:31:55 +03:00

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@houseman2001 commented on GitHub (Mar 12, 2017):

Same with me!
I was successfully using nbfc already with Win10 on a Sony VAIO Fit 13A, Model SVF13N1C5E, until yesterday. For some reason nbfc has no effect anymore to reduce fan speed, even if it's enabled and target fan speed is 0.0%. I'm facing a constantly high fan speed now which seems to be worse than the original settings by Sony!
Before I was very happy with the attached config which was build for a Vaio Fit 14A:
SVF14N1C5E (2).txt
It normaly writes on Register 94 with a polling interval of 1750ms.
I upgraded on nbfc 1.5 but no difference.

Any glue about the root cause?
Thanks for any help!

Edit:
Problem solved!
The Reset button can heal sometimes even the worst Problems...;-)

@houseman2001 commented on GitHub (Mar 12, 2017): Same with me! I was successfully using nbfc already with Win10 on a Sony VAIO Fit 13A, Model SVF13N1C5E, until yesterday. For some reason nbfc has no effect anymore to reduce fan speed, even if it's enabled and target fan speed is 0.0%. I'm facing a constantly high fan speed now which seems to be worse than the original settings by Sony! Before I was very happy with the attached config which was build for a Vaio Fit 14A: [SVF14N1C5E (2).txt](https://github.com/hirschmann/nbfc/files/836490/SVF14N1C5E.2.txt) It normaly writes on Register 94 with a polling interval of 1750ms. I upgraded on nbfc 1.5 but no difference. Any glue about the root cause? Thanks for any help! Edit: Problem solved! The Reset button can heal sometimes even the worst Problems...;-)

kerem commented

2026-02-26 00:31:55 +03:00

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@rdts commented on GitHub (Apr 29, 2017):

Same problem here. I have a Yoga 2 Pro. It worked well with the "Lenovo Yoga 13 2191" profile until a couple of days ago.

I updated to 1.5.1 - no change.

The situation is like this:
When the service is in read-only mode I can see the real fan speed, which is 100.4% for both fans all the time.
When the service is fully enabled target fan speed and current fan speed show both 0.0% even though both fans actually run at full speed.

@rdts commented on GitHub (Apr 29, 2017): Same problem here. I have a Yoga 2 Pro. It worked well with the "Lenovo Yoga 13 2191" profile until a couple of days ago. I updated to 1.5.1 - no change. The situation is like this: When the service is in read-only mode I can see the real fan speed, which is 100.4% for both fans all the time. When the service is fully enabled target fan speed and current fan speed show both 0.0% even though both fans actually run at full speed.

kerem commented

2026-02-26 00:31:55 +03:00

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@github-actions[bot] commented on GitHub (Dec 12, 2019):

This issue is stale because it has been open more than 180 days with no activity. If nobody comments within 7 days, this issue will be closed

@github-actions[bot] commented on GitHub (Dec 12, 2019): This issue is stale because it has been open more than 180 days with no activity. If nobody comments within 7 days, this issue will be closed