Question My fans are running at high speeds and I cannot control them ?

[TobyAkka]

So recently i've got myself AF120 Elite Corsair fans, i got 3 on the front of my case, one on the back and one on top, however my problem is im using splitters as i only have two cha fan ports, so even if i use a software i can control the back and top fans but not the front free, and even if i can i can only e.g it will have one front fan at 900rpm and i can get it down to 800 thats it but one fan wont even let me change its speed and is stuck on a constant 1700rpm, now i've tried software like fancontrol or speed fan and it does nothing, i even tried my motherboard bios which resulted in no change.

My case is: Corsair 4000D Airflow
Motherboard: ASROCK B450 HDV R4.0

I dont know if that helps but it might as even family member said they shouldnt be spinning that fast as he has simillar setup like same case and stuff yet his fans are normal speed

 

[Lutfij]

Welcome to the forums, newcomer!

Mind sharing a picture of the splitter you're working with?

Motherboard: ASROCK B450 HDV R4.0
You have what is a bottom of the barrel style motherboard, the chassis fan header looks 3pin/DC for one while the one mid board is 4pin/PWM. I'm assuming you have the front fans hooked to the 3 pin header?

You should look into a PWM fan hub if you want to work with that motherboard. If you have the funds, get a new motherboard with PWM fan support on all it's headers. The hub would be an economical/smarter decision.

 

[TobyAkka]

Welcome to the forums, newcomer!

Mind sharing a picture of the splitter you're working with?

Motherboard: ASROCK B450 HDV R4.0
You have what is a bottom of the barrel style motherboard, the chassis fan header looks 3pin/DC for one while the one mid board is 4pin/PWM. I'm assuming you have the front fans hooked to the 3 pin header?

You should look into a PWM fan hub if you want to work with that motherboard. If you have the funds, get a new motherboard with PWM fan support on all it's headers. The hub would be an economical/smarter decision.

Sure ill get it now! and yeah ive had this motherboard since i got my pc in 2019, everything else has been upgraded and i personally know it needs an upgrade but parent says oh it isnt needed lol.

https://www.amazon.co.uk/dp/B07MXNT6V4?psc=1&ref=ppx_yo2ov_dt_b_product_details and theres the link to the splitters