EK DDC PWM Pump Question

[RickPlaysWarr]

Hi

i just got the EK DDC PWM pump with my new water cooling parts shipment. It has one Molex connector for power and one 4 pin fan header with the speed control and PWM wires attached. Do I need to connect this? What happens if no connection? I would rather minimize the number of cables and can i safely cut this one off when I take the pump apart to put the EK DDC metal pump heat sink on and sleeve the power cable

Never owned a DDC pump so don't want to fork it up

Thanks

--Rick--

 

[Tolemac]

I would imagine that if you didn't connect the speed control/rpm fan header the pump would just run at 100% all the time but I may be wrong here somebody like JR would know more about these pumps to give you the best advice here mate

 

[tolagarf]

The pump will just run at max RPM, if you don't connect the PWM header. But I'd recommend you do, unless you want your PC to be noisy.

 

[JR23]

Hi

i just got the EK DDC PWM pump with my new water cooling parts shipment. It has one Molex connector for power and one 4 pin fan header with the speed control and PWM wires attached. Do I need to connect this? What happens if no connection? I would rather minimize the number of cables and can i safely cut this one off when I take the pump apart to put the EK DDC metal pump heat sink on and sleeve the power cable

Never owned a DDC pump so don't want to fork it up

Thanks

--Rick--

I can assure you that you want to run the PWM cable! At 100% they run at 4600RPM which is just insanely noisy. You can still make a nice job of sleeving them with two cables.

An other option might be (if the fan header can take it) is to put all 4-wires onto a 4-pin fan block. Cross reference the fan controller stats against the pump power consumption.

Personally I always try to get rid of molex connectors entirely, because they are garbage and fugly. And wire the pump straight to a PSU peripheral connector, it's an easy job if you have the tools.

This is the last one I did. It's an EK PWM DDC, the +12v and Ground go directly to the PSU (Silverstone SFX). The grey sleeve has both the signal and PWM wires, taking them to a motherboard header. And the other two wires go to an LED strip, powering it from the motherboard.

JR

 

[RickPlaysWarr]

I can assure you that you want to run the PWM cable! At 100% they run at 4600RPM which is just insanely noisy. You can still make a nice job of sleeving them with two cables.

An other option might be (if the fan header can take it) is to put all 4-wires onto a 4-pin fan block. Cross reference the fan controller stats against the pump power consumption.

Personally I always try to get rid of molex connectors entirely, because they are garbage and fugly. And wire the pump straight to a PSU peripheral connector, it's an easy job if you have the tools.

This is the last one I did. It's an EK PWM DDC, the +12v and Ground go directly to the PSU (Silverstone SFX). The grey sleeve has both the signal and PWM wires, taking them to a motherboard header. And the other two wires go to an LED strip, powering it from the motherboard.

JR

Thanks JR. I do have an ATX pin crimp tool as I am making my own custom length cable set. I will take your advice and go right to the power supply directly. The PWM cable will go to the MB CPU fan header then. Really appreciate the advice

Thank you

--Rick--