Can't control the fan speed Sp120 Rgb Pro Performance 120Mm

[DHD]

Hey guys,

 

I have bought the Elite Capellix 150i and 3 Corsair Icue Sp120 Rgb Pro Performance 120Mm. The 3 Capellix fans I can control, but the 3 Corsair Icue Sp120 Rgb Pro Performance 120Mm Ventilator, are always at maximum speed. I can set all devices to 0 rpm, but only the Capllix fans will do that. It goes the same with the other settings, extreme, balanced, or fixed percentage. The 3 Capellix fans will do it but the 3 Corsair Icue Sp120 Rgb Pro Performance 120Mm Ventilator won't. Can I control the Corsair Icue Sp120 Rgb Pro Performance 120Mm Ventilator, which is connected to commander pro from the Capellix 150i? Or will they always be on max settings?

Connected the pump to CPU_FAN

the Commander Core to USB 2.0 header

 

specs:

Capellix firmware: 1.6.135

Icue firmware: 3.37.140

Window 10 pro 64 bit Version 20H2 (19042.746)

Asus Dark hero X570 (BIOS 3003)

EVGA RTX 3080 FTW ULTRA

 

I have seen a lot of topics about this, but I haven't seen a fix for it.

If you need any additional data, I will be happy to provide it.

 

Thank you.

 

Kind Regards,

 

DHD

Edited January 14, 2021 by DHD

[c-attack]

The three SP-Pro fans are 3 pin DC motors. The Commander Core is a PWM only controller. It is giving them the max 12v at all times and thus the perpetual max speed. There is nothing you can do about that. You will want to move their speed control wire to the MB for that purpose. The RGB wire can stay on the Commander Core for lighting.

[DHD]

The three SP-Pro fans are 3 pin DC motors. The Commander Core is a PWM only controller. It is giving them the max 12v at all times and thus the perpetual max speed. There is nothing you can do about that. You will want to move their speed control wire to the MB for that purpose. The RGB wire can stay on the Commander Core for lighting.

 

Well, that sucks. Which fan of corsair would do the same as the Capellix fans?

[c-attack]

Unfortunately this is tricky as well. The SP-RGB (original) and SP-Pro are the only DC 3 pin Corsair RGB fans. The ML-Pro, HD, LL, and QL are all PWM. So is the SP-Elite that comes with some of the new cases. So that part is easy.

 

However, the SP-Pro you have is the only one that is an exact LED match for ML-Elite (8 LEDs) that come with the Elite coolers. Using any of the other types with 4, 12, 16 LEDs will throw off the effects to some extent. If Corsair sold the ML-Elite (8) or SP-Elite (8) at retail, then either would be a perfect fit. At this time, that has not been announced. Curious to see if that will be mentioned during CES this week.

 

So at the moment you are stuck choosing between having to pass the SP-Pro to the motherboard for speed control or complicating your lighting patterns by adding in an odd LED count fan.

[DHD]

Unfortunately this is tricky as well. The SP-RGB (original) and SP-Pro are the only DC 3 pin Corsair RGB fans. The ML-Pro, HD, LL, and QL are all PWM. So is the SP-Elite that comes with some of the new cases. So that part is easy.

 

However, the SP-Pro you have is the only one that is an exact LED match for ML-Elite (8 LEDs) that come with the Elite coolers. Using any of the other types with 4, 12, 16 LEDs will throw off the effects to some extent. If Corsair sold the ML-Elite (8) or SP-Elite (8) at retail, then either would be a perfect fit. At this time, that has not been announced. Curious to see if that will be mentioned during CES this week.

 

So at the moment you are stuck choosing between having to pass the SP-Pro to the motherboard for speed control or complicating your lighting patterns by adding in an odd LED count fan.

 

What do you mean with PWM and are all the fans of Corsair 3 pin?

So they can't be controlled with the commander core from the Capellix?

 

Ye, I choose these, cos they give the best airflow and it came in handy that they where 8 leds also.

 

Thanks so much for the information. ❤

[LeDoyen]

all the fans with a 3 pin connector for the motor are DC controlled. There's ground, speed reading, and variable voltage for speed control.

 

PWM fans have a 4 pin connector instead with ground, speed reading, PWM signal for speed control and fixed 12V.

 

If you plug a 3 pin fan into a PWM controller like the commander core, the voltage is fixed at 12V so the fan constantly runs at full speed. that's why :)

[DHD]

Which fan is compatible with the commander core from the Capellix?

[LeDoyen]

As C-attack said, all the PWM fans:

 

The ML-Pro, HD, LL, and QL are all PWM. So is the SP-Elite that comes with some of the new cases. So that part is easy.

 

The corsair website lists on the fan specs if they are PWM too

[Samztha]

On 1/15/2021 at 2:53 AM, c-attack said:

The three SP-Pro fans are 3 pin DC motors. The Commander Core is a PWM only controller. It is giving them the max 12v at all times and thus the perpetual max speed. There is nothing you can do about that. You will want to move their speed control wire to the MB for that purpose. The RGB wire can stay on the Commander Core for lighting.

So with that i have to choose between lighting or fan speed control?

I can't have both at the same time?

[c-attack]

If you have SP-Pro fans, they have DC 3 pin motors.  Only the Commander Pro can control DC fans for speed.  You'll likely need to use your motherboard fan headers to do the job.

 

RGB is less picky and any of the controllers will work for lighting control.  However, with the Commander Pro you need a RGB Lighting Hub 5v booster to connect fans.  That's not something that comes in current fan packages and if you don't have one already, it can be difficult to track down.  Depending on what you already have, it may be more economical to swap out the fans if you want dual RGB+Speed control on one device.