CPU fan stops spinning

[TimAhKin]

Hi guys

I have an issue with my CPU fan. It stops spinning while gaming. It doesn't happen all the time.

If I reboot the PC, fan starts spinning. I have this PC for over a year and never had this problem.
No component is overclocked.

Mobo: Asus PRIME x470-Pro with BIOS 5220 - 11.09.2019 - Wraith Prism cooler
CPU: Ryzen 2700x
RAM: 2 x 8 GB HyperX Fury 2666 Mhz
PSU: EVGA SuperNova G2 750W
GPU: Sapphire 5700x Nitro

Today I noticed that when the CPU fan stopped, 3 other case fans stopped as well. The other 2 are working fine.

Another thing worth mentioning, while the PC was running, I re-plugged the power cable for the CPU fan, it starts spinning for 2 seconds then stops. After that I plugged it the other way with only 3 pins and it started spinning normally.
Not really sure what's causing this. Any ideas?

Cheers!

 

[Ree]

check you fan settings in ai suite if you have it installed or bios if not am pretty sure there is a fan stop setting you can uncheck if it is that, that is. this used to happen on my old z97 asus mobo too.

 

[TimAhKin]

Thanks. Apparently it's because my Mobo doesn't like HWInfo. I have HWInfo set up to display several information about temps, fan speeds, etc.

Many have the same issue and looks like only ASUS can fix it.

https://www.hwinfo.com/forum/thread...-down-after-a-while-when-running-hwinfo.4961/

https://rog.asus.com/forum/showthre...teriously-stopping-on-the-ASUS-Prime-X470-Pro