How to control CPU liquid cooler pump voltage

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idahludbA

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Nov 29, 2013
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Hello everyone,

I have a Cooler Master Seidon 120V CPU liqiud cooler kit and I want to know how to reduce the cooler pump noise by controlling the voltage.

My mobo is the Asrock Z68 Fatal1ty Professional Gen3, the cooler pump is connected to the 3-pin CPU_FAN2 header and the radiator fan is connected to the 4-pin PWM CPU_FAN1 header.


 
Solution
TomTom111
You can't really control the voltage on a 3-pin power connector for case fans.
Those are meant to be static.
If you wanted to get really fancy, you could try your hand at adding a potentiometer between the positive, negative and ground on the power wires.
Other than that, there is really no way to edit the voltage coming out of a 3-pin power connector.
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TomTom111

TomTom111

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Nov 20, 2013
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You can't really control the voltage on a 3-pin power connector for case fans.
Those are meant to be static.
If you wanted to get really fancy, you could try your hand at adding a potentiometer between the positive, negative and ground on the power wires.
Other than that, there is really no way to edit the voltage coming out of a 3-pin power connector.
 
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Solution
I

idahludbA

Honorable
Nov 29, 2013
4
0
10,510


Thank you for your reply.

I found a review article of the cooler master Seidon 120V (http://dvtests.com/?p=14425), the reviewer mentions if you set it to Voltage control then the pump will work at very low noise level and will increase its speed only when there is a high load on the processor.
Can you explain that part for me on how to set the voltage please? (you can find the part that I'm talking about under: 1. Cooler Master Seidon 120V performance > second paragraph)
 
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