B450 fan header issue

[Zelenia]

Hey, 

 

I made post about this thing couple months ago but I'm going to make a new topic about it again because the issue appeared once again...

 

https://www.msi.com/Motherboard/B450M-MORTAR-MAX

This is the motherboard I got, I've been using it for about 10 months and it was brand new. 

 

I got issues with sys_fan3 header that is located in the same row with USB, power/reset, rgb etc. headers.

 

The issue is that any fan I plug on it won't spin unless it's at least 50%. My other case fans on the other headers (sys_fan2 and sys_fan1) will work even at 20% just fine. I did try with other cables and swapped fans around but nothing really changes.

 

When I got this motherboard sys_fan3 was still working and I was using Noctua's fan splitter to connect 2 fans to it. Then just one day the splitter stopped working (just 1 fan out of 2 spinning at a time).

 

So yeah I'm  just curious if there is anything I can do about this?

 

It's bit nuisance because 50% of the time I'm not able to control the fan in sys_fan3 outside BIOS and I'm definitely not going to use that fan splitter again.

[GoodEnough]

i have a matx motherboard with only one sys fan header, so i literally HAVE to use a fan hub, and it gets the job done well.

if your curious i use this as a fan hub (https://www.amazon.com/SilverStone-System-Cables-Black-CPF04/dp/B00VNW556I) i mean hey.. its 5% off for a total of 79 cents worth of savings

[Renu]

12 minutes ago, Zelenia said:

Hey

If you enter the BIOS for your motherboard, there may be a section to choose fan settings based on which header it is plugged into. 

[Zelenia]

23 minutes ago, GoodEnough said:

i have a matx motherboard with only one sys fan header, so i literally HAVE to use a fan hub, and it gets the job done well.

if your curious i use this as a fan hub (https://www.amazon.com/SilverStone-System-Cables-Black-CPF04/dp/B00VNW556I) i mean hey.. its 5% off for a total of 79 cents worth of savings

I'll check this out... or get second hand one. As long as there isn't any chance for it to break another header. 

 

15 minutes ago, Renu said:

If you enter the BIOS for your motherboard, there may be a section to choose fan settings based on which header it is plugged into. 

Yeah, in BIOS there is option to choose fan settings based on headers. It's just quite clunky to control fans from there (mouse moves about 20% speed because drivers don't boot).  I did setup this sys_fan3 to always spin at least 50% because otherwise Windows doesn't even recognize it.