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Faulty Fan Control - Taichi - A-Tuning
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DSLeX View Drop Down
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Joined: 03 Oct 2018
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DSLeX Quote  Post ReplyReply Direct Link To This Post Topic: Faulty Fan Control - Taichi - A-Tuning
    Posted: 03 Oct 2018 at 6:55pm
Dear All,

I have experienced similar difficulties regarding the temperature-dependent control of the CPU fan speed, as other users have reported.
However, after playing around with the settings I have noticed something odd.
I can control my chassis fans with the A-Tuning software and the "MB Temp." setting successfully.
But as soon as I change the CPU FAN 1 to be controlled by "CPU Temp." instead of Tctl (which is quite bouncy), the CPU FAN 1 doesn't seem to react to the temperature any more.
It always runs on the same speed.

Therefore I installed HWinfo and found this out:
If the CPU FANs are set to Tctl, the mainboard provides a correct CPU temperature:

https://i.imgur.com/QU42Fez.jpg?1

If you now set the control parameter to "CPU Temp." the mainboard now provides a wrong temperature: -73°C.

https://i.imgur.com/x9bcxvx.jpg

This explains why the CPU FAN 1 doesn't react to the CPU temperature any more, as is assumes it is way below the curve settings.

This seems to be a software bug, I hope that this post will get some attention from the developers.

If you have the same issues with your Taichi boards, please let me know.

Regards

DSLeX


Edited by DSLeX - 04 Oct 2018 at 4:39pm
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xhue View Drop Down
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Joined: 17 Aug 2018
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Points: 634 		Post Options Post Options   Thanks (0) Thanks(0)   Quote xhue Quote  Post ReplyReply Direct Link To This Post Posted: 04 Oct 2018 at 2:03am
Originally posted by DSLeX DSLeX wrote:


This seems to be a software bug, I hope that this post will get some attention from the developers.


Mmm, nope. Try here http://event.asrock.com/tsd.asp and here https://www.asrock.com/support/index.asp?cat=RMA (no matter if you're in the US or not).

Originally posted by DSLeX DSLeX wrote:

If you have the same issues with your Taichi boards, please let me know.

I use super quiet Noctua fans and I use Tctl. This way I don't mind the RPM changes, although your case looks like a nasty bug.

As a workaround you can set constant RPM to this fan, especially if you're not overclocking or if you're not in a hot room/climate.
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