Cosair H150I Pump Question

Sep 14, 2018
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Hi Guys

I recently installed a Corsair H105i AIO in my PC but I am having problems controlling the fan speed of the Pump through ICUE. The fans I can control OK but the pump stays at around 2100 rpm constantly. If it helps I have a Asus Maximus Hero Motherboard if that helps. I believe everything is connected as it should be? I would love to be able to control the pump speed and I'm at a loss at what to do.

Thanks in advance
 
You are trying for too much. The Corsair H150i system is designed to run the pump at full speed all the time, and to do all control of the CPU temperature by manipulating only the speed of the fans on the radiator. Manipulating two elements that react differently in a single control loop is very difficult and can fail to work smoothly, but has almost no benefit.
 


But the Pump speed never changes. If I select Balanced or quiet the fans are slow, If I choose Performance then they ramp up to full speed but the Pump never changes. If it's meant to run at 2100rpm constantly then great. Just worried that it was being run at full tilt constantly unnecessarily.
 
It IS meant to run full speed always. In some cases you might be able to defeat that design and force the pump to run at a lower speed all the time, but that would require that your mobo have certain features and it is not the intended design. Doing that also would mean that, when you reach very heavy use and CPU heat generation, the system could become limited in its ability to remove enough heat, leading to the possibility of CPU overheating.