Third fan not spinning for ROG Flow X16

[cia19pl]

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[cia19pl]

(Sorry I forgot to put in the description of the bug)

Describe the bug - 

Third, small fan not working on ASUS ROG Flow X16, causing the temperature to skyrocket during load.

To Reproduce - 

N/A

Expected behaviour - 

Third, small fan would ramp up as the load on the system increases.

Desktop - 

Windows 11 22H2
Chrome
V0.33

[seerge]

• How do you measure 3rd fan speed?
• What mode do you set (and do you apply custom fan curves)?

[cia19pl]

Hi, and thank you for the reply.

I just looked at the bottom of my laptop and just saw it is not physically spinning.

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Under normal circumstances, with my SKU, ROG FLOW x16 (2022), in Armoury Crate there should be monitoring for "System Fan" under Fan Speed.

(sorry for the poor resolution, I deleted AC and I can only resort to finding this image online)

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I am currently in Balanced mode and with factory defaults fan curve and PPT settings.

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Hope this information helps.

[seerge]

@cia19pl thanks. Currently app doesn't touch 3rd fan anyhow (means it doesn't disable or enable it). It could be that by applying a fan curve for other 2 fans ("apply" is checked on your screenshot) asus bios somehow decides to stop a 3rd (or may be not).

As a quick test - i would advice to uncheck "auto apply" (or just click factory defaults) and test if fan works or not.

May be in future I will add support for 3rd fan fan curves :)

[seerge]

GHelper.zip You can try this build, i have added support for the 3rd fan. But it appears only if bios responds with appropriate fan curve to the app.

[kafalier]

Maybe it'd be nice to add Sys Fan speed value somewhere on the main app interface in addition to CPU and GPU fan values for devices that have it. That way we can tell if it's working as intended or not. I think WMI for it should be 0x00110031. Could do a PR myself but you'd probably do it faster.

[seerge]

@kafalier i can look into that, but does the build show 3rd fan in fan editor for you ?

[seerge]

GHelper.zip Build that should show mid fan speed on main screen

[kafalier]

Yes, mid fan speed shows. Fan editor also displays she settings for it as well, although since I don't use custom fan curves, I haven't tested whether they're working. But the read and the graph is there, and the mid fan works under default profiles just fine. Thanks.

[seerge]

Well, if chart shows - it means it can read fan curve from bios. If you don't click Apply (and don't check auto-apply) for fans, app will not apply any fan curve and bios will just use default ones.

[seerge]

Then I'm waiting for a response from @cia19pl

[cia19pl]

yes it seems to be working right now, the third fan spins, thanks for the update. :D

[seerge]

Great! I have pushed all changes into v0.35

[cia19pl]

Just a QoL idea, maybe raise the default middle fan RPM by around 800-1000rpm as a whole since it's a smaller fan and could be worthwhile to increase the static pressure. Of course, the user can just manually adjust it but just a thought you know.

[seerge]

Default fan curve is the one that your laptop's bios reports (app just reads and shows it) . I'm not a big fan of overwriting (by default) of what asus people have set :) But ofc you can always rise RPMs if that helps.

[cia19pl]

Ah I see, makes sense. thanks for clarifying.