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Asus tuf B550 pro keeps changing cpu fan config (dc/pwm mode)

MultiGamerClub
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Got my aio plugged into cpu fan or else the pump doesn't seem to spin or boot up properly and the motherboard complains.

 

Anyway, the cpu fans config keeps getting changed from being on full-speed to pwm mode so it got 3 speed settings. But I want this to be on full speed all the time so the pump just pumps 100 percent all the time.

 

I updated the bios to latest version a few days ago and I'm not sure what would cause it to change setting😕

 

Any tips is greatly appreciated😬

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6 minutes ago, MultiGamerClub said:

cpu fans config keeps getting changed from being on full-speed to pwm mode so it got 3 speed settings.

Interestingly, the motherboard manual shows the AIO header but doesn't reference it anywhere. It does say that your CPU_FAN and CPU_OPT share controls. In the BIOS is there a spot for OPT or no? If there is, and this is a shot in the dark, I'd try setting that to pwm full speed as well. 

I'm not actually trying to be as grumpy as it seems.

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