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post #1 of 6 (permalink) Old 09-09-2019, 10:30 AM - Thread Starter
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DDC 3.2 PWM voltage management

Hi All,

I have a DDC 3.2 PWM pump and i need to use it with my Lamptron CW611 which only has 3 pin fan headers.

If i had to connect the pump up to the fan controller, it would adjust the voltage going to the pump, not change the pumps speed based on the PWM signal.
Am i right in saying that managing the pump voltage via the actual voltage assigned to the pump would potentially damage the pump/PWM module?

And if so, am i correct in saying that a NON-PWM pump's speed would indeed be managed by the voltage assigned to it? Ie connecting it to the fan controller on pump mode would be perfect?

Thank you.

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post #2 of 6 (permalink) Old 09-09-2019, 11:00 AM
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This is why I got an Aquaero many many moons ago.

You're better of controlling it via motherboard, than trying to control it via the lamptron.

R.I.P. Zawarudo, may you OC angels' wings in heaven.
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post #3 of 6 (permalink) Old 09-09-2019, 12:09 PM - Thread Starter
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Quote: Originally Posted by skupples View Post
This is why I got an Aquaero many many moons ago.

You're better of controlling it via motherboard, than trying to control it via the lamptron.
Thanks for confirming my thoughts.
My motherboard software is horrible so i want to have it controlled by the Lamptron.. guessing im trying to find someone to swap with for a non-PWM pump.

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post #4 of 6 (permalink) Old 09-09-2019, 03:11 PM
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You could use a 3rd party software like Speedfan? It wouldn't know the difference between a fan and a pump but it would allow you to adjust the speed.

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post #5 of 6 (permalink) Old 09-09-2019, 03:58 PM
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Quote: Originally Posted by SystemTech View Post
Thanks for confirming my thoughts.
My motherboard software is horrible so i want to have it controlled by the Lamptron.. guessing im trying to find someone to swap with for a non-PWM pump.
Quote: Originally Posted by Jakerz View Post
You could use a 3rd party software like Speedfan? It wouldn't know the difference between a fan and a pump but it would allow you to adjust the speed.

Jake
true.

only issue with this is anything on the board gets ramped up to 100% during POST, up til the software of choice runs. Some of the more anal folks can't stand this.

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post #6 of 6 (permalink) Old 09-10-2019, 05:52 AM - Thread Starter
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Quote: Originally Posted by skupples View Post
true.

only issue with this is anything on the board gets ramped up to 100% during POST, up til the software of choice runs. Some of the more anal folks can't stand this.
Haha, that's true. I don't mind that, for me its that I spent a fair bit of $$ on a really nice fan controller, that is designed to control pumps too, and I cannot use it because my pump is PWM and smart, whereas a 'stupid' pump would actually work

I'm going to try a trade for a NON-PWM pump otherwise ill just buy one and sell my PWM one.

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