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Using PWM fan on AIO pump MB header

SuriKratos
By SuriKratos
in Cooling
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Hi guys! I have this motherboard https://www.asus.com/Motherboards/TUF-B450-PLUS-GAMING/HelpDesk_Download/ and I’m using 4 PWM fans, 3 from Corsair and one from Noctua. The mobo has 3 chassis fan headers a one AIO pump header which seems to be  PWM as well. I decided to connect one of tha chassis fans in AIO pump header, it is working and allowing to adjust its speed as any other fan, but since I dis that, the boot is taking longer than usual, my guess is the mobo is trying to “talk” to the fan as an AIO PUMP but is not receiving all the info and hangs a bit during boot time. 
 

Am I risking damaging anything doing it like this? Would be better to get a splitter? Or there is any BIOS settings (which I may not be familiar with) that would prevent that delay or hang during boot?

 

thanks

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Pump header is just another fan header. Usually the only thing different is that pump header supplies double Amps vs normal. There should be no reason for longer boot times.

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Thanks guys, I found out the reason for the boot delay... it was a USB speaker which uses USB only for power (Logitech Z211), After removing it from the USB the boot went smoothly, don't know why it started to affect the USB during boot.

 

I'll get a splitter then :)

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