Question 4 pins aren’t working.

[MahirC]

Hey guys, I currently have an ASrock B450M Steel Legend motherboard and am currently working on a build. Specs:
Ryzen 7 1700
Sapphire Nitro+ RX580
8GB Patriot Viper 2666 (1x8GB)
B450M Steel Legend
120GB SSD

I currently have 6 fans in my case with 3 of the 4 pin chassis fan motherboard connectors, but only one of them are working. I’m using 1 to 2 fan splitters.

When I connect the fan splitter or fan to chassis fan 1, they work fine but the fan splitter and fan stop working when I plug them into chassis fan 2 or 3. I’ve only connected my CPU fan and the front panel power connector.

Could anyone please help?

 

[COLGeek]

Do those headers (#2 and #3) work properly when only a single fan is connected? Are these PWM (4-pin) or 3-pin fans?

 

[Ralston18]

Do fans 2 and 3 work if powered directly/individually?

With and without chassis fan 1 involved?

 

[MahirC]

Do fans 2 and 3 work if powered directly/individually?

With and without chassis fan 1 involved?

No they do not.

 

[MahirC]

Do those headers (#2 and #3) work properly when only a single fan is connected? Are these PWM (4-pin) or 3-pin fans?

No they do not.
They are 3 pin fans.

 

[Ralston18]

Does the following link show your motherboard and does your motherboard indeed have 5 x 4 pin fan headers?

https://motherboarddb.com/motherboards/1586/B450M Steel Legend/

I think you need to take a closer look at your entire setup and corresponding configurations.

Starter link from this Forum.

https://forums.tomshardware.com/threads/fan-speed-control-how-to-2-pin-vs-3-pin-vs-4-pin.2200004/

And you can easily find additional information:

https://landing.coolermaster.com/faq/how-to-connect-a-3-pin-or-4-pin-fan-to-the-motherboard/

Troubleshoot each fan header by plugging in each fan, one by one through all of the headers. No splitters or adapters.

Confirm that each header and fan work. If a fan does not work, test it on another computer. Try another known working fan on header.

 

[MahirC]

Does the following link show your motherboard and does your motherboard indeed have 5 x 4 pin fan headers?

https://motherboarddb.com/motherboards/1586/B450M Steel Legend/

I think you need to take a closer look at your entire setup and corresponding configurations.

Starter link from this Forum.

https://forums.tomshardware.com/threads/fan-speed-control-how-to-2-pin-vs-3-pin-vs-4-pin.2200004/

And you can easily find additional information:

https://landing.coolermaster.com/faq/how-to-connect-a-3-pin-or-4-pin-fan-to-the-motherboard/

Troubleshoot each fan header by plugging in each fan, one by one through all of the headers. No splitters or adapters.

Confirm that each header and fan work. If a fan does not work, test it on another computer. Try another known working fan on header.

I’ve tried there’s a problem with the headers 2 and 3.

 

[COLGeek]

So a single 3-pin fan will not work on either #2 or #3. Correct?

Do those particular fans work when connected to any other header?

 

[MahirC]

So a single 3-pin fan will not work on either #2 or #3. Correct?

Do those particular fans work when connected to any other header?

They only work on #1.