DDC Pump PWM Range


New member

I have looked on the shop, and of all the DDC Pumps, there seems to be only one that has PWM Control

("Laing DDC-pump 12V DDC-1T Plus PWM")

Is that correct?

And if it is correct...

What range is the PWM?

Is it from 0-100% or 20-70% etc. or what?
Because I have read some pumps PWM only works in smaller ranges, example: below 50% or below 70% etc.

Where can i find out these specifications?

Thank you


Staff member
Hi there, the PVWM range of the DDC pumps are not that big. The range by this pump is approx. 50 to 100%.

Where can i find out these specifications?
If you want to have more detailed spec-informations you need to contact laing directly.


New member
I have a DDC 3.2 pump, which should be the same DDC-1T PWM. On my Asus Hero XXII mobo, if I set 60% to 100% PWM signal range for pump use, the pump will always run at full speed. After playing with the lower, middle and upper PWM signals in the bios. 0% to 55% signal gives control from 1200 RPMs to 4500 RPMs, so this is range you will need to try and play with if you want speed control.