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Motherboard not recognizing system fan?

Almostlastplace
By Almostlastplace
in Cooling
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Hey, I recently upgraded my set of case fans to Noctua NF-A14 PWM fans, everything seemed to go together just fine until I noticed that after booting through the BIOS the fan plugged into sys_fan2 is not being recognized or powered at all. It still spins upon initially powering on, and I have plugged it into different headers to make sure the problem wasn't with the fan itself but I've narrowed the issue down to the motherboard header for sure.

help? :unsure:

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Hey, I recently upgraded my set of case fans to Noctua NF-A14 PWM fans, everything seemed to go together just fine until I noticed that after booting through the BIOS the fan plugged into sys_fan2 is not being recognized or powered at all. It still spins upon initially powering on, and I have plugged it into different headers to make sure the problem wasn't with the fan itself but I've narrowed the issue down to the motherboard header for sure.

help? :unsure:

what breand mobo run it off a splitter try clearing cmos

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what breand mobo run it off a splitter try clearing cmos

The mobo is a Gigabyte Z77-D3H

 

Have you tried a different fan header and see if the problem persists?

I have plugged the fan into a different header and it worked but it's just not working in sys_fan2 specifically. 

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The mobo is a Gigabyte Z77-D3H

 

I have plugged the fan into a different header and it worked but it's just not working in sys_fan2 specifically. 

 

Well, then it sounds like you've already isolated the problem.

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Well, then it sounds like you've already isolated the problem.

Yeah, I'm just trying to figure out how to fix it from here

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Gigabyte doesn't have PWM control on their system fan headers. Only on CPU and CPU_OPT headers. Just fyi. The fan should still be working. Have you set some special controlling profile to that header in BIOS?

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