Jump to content

Laing DDC pump voltage control?

hehehehhehehehe
 Share
Posted

Hey guys,

 

Just wondering if any of you know how I could limit the voltage on this pump: http://shop.watercool.de/Laing-DDC-Pumpe-12V-DDC-1T/en

 

I'm trying to get it down to around 10v due to the HUGE amount of noise it has been making... 

 

Have tried using ghetto style molex adaptors to take it down to 7v but ran into an issue with the pump not starting at 7v (although it will run once it has started)

 

Any ideas?

<p>Mobo - Asus P9X79 LE ----------- CPU - I7 4930K @ 4.4GHz ------ COOLER - Custom Loop ---------- GPU - R9 290X Crossfire ---------- Ram - 8GB Corsair Vengence Pro @ 1866 --- SSD - Samsung 840 Pro 128GB ------ PSU - Corsair AX 860i ----- Case - Corsair 900D

Link to comment
https://linustechtips.com/topic/43793-laing-ddc-pump-voltage-control/
Share on other sites
Link to post
Share on other sites
Posted
  • Author

The pump has a start up volatge of 9V. If you go lower than that it wont start.

 and what sort of noise is it making 

That's exactly why I want to try and run it at 10v :)

And it's like this at around 14 sec in.

 

<p>Mobo - Asus P9X79 LE ----------- CPU - I7 4930K @ 4.4GHz ------ COOLER - Custom Loop ---------- GPU - R9 290X Crossfire ---------- Ram - 8GB Corsair Vengence Pro @ 1866 --- SSD - Samsung 840 Pro 128GB ------ PSU - Corsair AX 860i ----- Case - Corsair 900D

Link to post
Share on other sites
Posted
  • Author

You may want to try noise dampening pads, etc. before undervolting your pump, as that will affect thermal performance.

Any ideas on what I could do if it's in a bayres combo?

<p>Mobo - Asus P9X79 LE ----------- CPU - I7 4930K @ 4.4GHz ------ COOLER - Custom Loop ---------- GPU - R9 290X Crossfire ---------- Ram - 8GB Corsair Vengence Pro @ 1866 --- SSD - Samsung 840 Pro 128GB ------ PSU - Corsair AX 860i ----- Case - Corsair 900D

Link to post
Share on other sites
Posted
  • Author

You overtightened your pump top. :)

 

best G

Well, that video wasn't my pump

(I'm at school and that's the closest I could find)

<p>Mobo - Asus P9X79 LE ----------- CPU - I7 4930K @ 4.4GHz ------ COOLER - Custom Loop ---------- GPU - R9 290X Crossfire ---------- Ram - 8GB Corsair Vengence Pro @ 1866 --- SSD - Samsung 840 Pro 128GB ------ PSU - Corsair AX 860i ----- Case - Corsair 900D

Link to post
Share on other sites
Posted

Hey guys,

 

Just wondering if any of you know how I could limit the voltage on this pump: http://shop.watercool.de/Laing-DDC-Pumpe-12V-DDC-1T/en

 

I'm trying to get it down to around 10v due to the HUGE amount of noise it has been making... 

 

Have tried using ghetto style molex adaptors to take it down to 7v but ran into an issue with the pump not starting at 7v (although it will run once it has started)

 

Any ideas?

 

it is a PWM pump, you do not voltage control PWM motors. well you can ,but

side-effects can occur. the idea is to supply 12v to motor and the PWM signal

then cycles the on/off switch to control rpm. so really you are only controlling

the rpm and not voltage. so i'd stop regulating the voltage, before damage is

caused to the pump.

 

to slow the pump down, reduce the cycle percentage.

10v would be close to 83%

9.6v would be close to 75%

7v is close to 58%

5v is close to 41%

 

airdeano

Link to post
Share on other sites
Posted
  • Author

it is a PWM pump, you do not voltage control PWM motors. well you can ,but

side-effects can occur. the idea is to supply 12v to motor and the PWM signal

then cycles the on/off switch to control rpm. so really you are only controlling

the rpm and not voltage. so i'd stop regulating the voltage, before damage is

caused to the pump.

 

to slow the pump down, reduce the cycle percentage.

10v would be close to 83%

9.6v would be close to 75%

7v is close to 58%

5v is close to 41%

 

airdeano

But how?

 

The fan header only has 1 cable and apparently thats for monitoring speeds not adjusting..

<p>Mobo - Asus P9X79 LE ----------- CPU - I7 4930K @ 4.4GHz ------ COOLER - Custom Loop ---------- GPU - R9 290X Crossfire ---------- Ram - 8GB Corsair Vengence Pro @ 1866 --- SSD - Samsung 840 Pro 128GB ------ PSU - Corsair AX 860i ----- Case - Corsair 900D

Link to post
Share on other sites
Posted
  • Author

Any ideas??

<p>Mobo - Asus P9X79 LE ----------- CPU - I7 4930K @ 4.4GHz ------ COOLER - Custom Loop ---------- GPU - R9 290X Crossfire ---------- Ram - 8GB Corsair Vengence Pro @ 1866 --- SSD - Samsung 840 Pro 128GB ------ PSU - Corsair AX 860i ----- Case - Corsair 900D

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing Custom Loop and Exotic Cooling

×