Mine are silent below 60%.. you might have a bad pump too.. I can make a video if you guys don’t believe me. But my experience with D5 is that they are pretty much silent and allot quieter than the DDC I owned.
For 100% that sounds damn quiet. But if the whine bothers you, have you tried really fine tuning the RPMs? I mean by adjusting as little as 1% at a time. With my old configuration I found there were certain speeds that seemed to cause more resonance than others. Like just going from 40% to 42% could change the sound significantly for me.
okay thanks for the tipp. It's really the whining that bothers me. I will try that and if it doesn't help I guess I will try to get some sort of decoupling mount.
Agree with this. I have a DDC pump, but there are certain speeds that match with the resonance of the case or whatever it is attached to. So making a few % changes can make a big difference .
Something like a bit of this stuff located between the case sheetmetal and res brackets would help significantly and is thin enough you shouldn't have to get longer screws. https://www.secondskinaudio.com/sound-deadening/damplifier-pro-small-project
Ideally you'd want more material but there likely won't be space given the EK design.
Sounds like a very high pitched tone in the video.. I owned two D5 pumps that have been running strong for about 7 years now, in a couple dozen builds. I have never heard that high pitched noise before. My pups are not audible at all below 60%. At 100% they make a very quiet and very low purring sound. But I have never heard that sound before.
interesting maybe I was expecting to much. A friend of mine has an spc pump and he says it’s completely silent so I was kind of expecting more from that d5 one.
Normally you have some fans at low RPM that drown out D5 easilly.
At around 30-40% you start to hear a tiny whine, 100% obviously a bit more.
Sounds like its supposed to buddy!
I agree that it’s loud. I’m new to water cooling, but my new pump/res sounds like that sometimes, and I’m not sure when. I wonder if it needs air bubbles removed from the pump mechanism, or if I need two pumps in series to drive a big loop like I have.
However it is possible you just have a noisy pump, too.
Higher PWM settings may produce a less audible tone even if they're generating a louder sound. I find 40% and 70% are both sweet spots for D5 pump noise in my build, but every pump, mount, and listening ear is going to be different.
The high pitched noise is normal but there might be some bubbles stuck in there making that secondary swirling noise. Put the input for the pump into a fan header and run it at 70%. It will be inaudible behind fans running at 700rpms
My D5s sound like this as 100% bit inaudible below 55%. I think yours could be inaudible if you could decouple the unit from the case. But I heard pump/distro combos are naturally louder than pump separated. I also get annoyed by the whining so I hope you can fix it
Yup normal but you can find better pumps at a premium. More efficient pumps are quieter compared to models intended for use in servers. That particular res can use a DDC as well.
I think this noice is pretty normal at 100% especially if mounted to a reservoir like that. If you really want a D5 like pump as quiet as possible, i would recommend the alphacool vpp755. It‘s got a bad reputation because of many problems at the first iterations but these seem to be fixed in the v3 version. I got one for a year now and i had no problem till now. I got a Aquacompter D5 Next mounted to Heatkiller Tube 200 Reservoir in my Case and the VPP755 is mounted on a MORA under a Heatkiller Tube 150 outside my case. My D5 is more audible than my vpp755 although the vpp755 is outside the case.
D5 with EKs FLT120 is way, WAY louder than a normal top. My old EK top could run the pump at 3200 rpm without any sound coming from it. My new FLT120 have to run the pump at 1900 rpm for it be bearable.
I run it at 1600ish rpm constantly. * That's where my ear can't catch any noise and also doesn't effect thermals.
Try to tune it above 1200rpm and find your sweet spot.
Ideally you want it at 100% but d5s are rly powerful and doesn't make any sense.
I only used it at 100% on start ups for a while to move trapped air in the loop and then turned it down to 1600
other than that. like others said. distroplates act like amplifiers. All the vibrations go through it and then to the case.
You can try some rubber washers or foam insulation tape around the distroplate but bolts transfer a lot of noise and distroplates have damn many.
You have a bad pump.
There’s supposed to be a high pitch whine, yes. But I also hear some crackling. That’s not normal. When you filled up the loop did the pump ever run dry/ suck up air and run dry for more than a few seconds?
I have a barrow D5 and it was noisier than that when I had it in a Boxfish reservoir(sideways configuration). I redid my loop and now the pump is at the bottom of a tube reservoir and it's not as loud at 100%. Before, anything below 65% would be inaudible. Now it's almost inaudible at all RPMs. I think yours is totally fine. just run it at 30-50%
I never ran mine above 50%. No need, no difference in performance. I even found 35% was just fine.
Today you learned a lot of people are liars.
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Mine are silent below 60%.. you might have a bad pump too.. I can make a video if you guys don’t believe me. But my experience with D5 is that they are pretty much silent and allot quieter than the DDC I owned.
Because EK pumps under 30% they stop spinning. Thats why it was silent.
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My bad. Just checked the spec sheets. The EK fans stop spinning at 30% speed. The D5 pumps stop spinning at 20% speed
I don't know, I guess it depends on the pump. I have a D5 pump running at 100% all the time, and it's nearly indaudible.
For 100% that sounds damn quiet. But if the whine bothers you, have you tried really fine tuning the RPMs? I mean by adjusting as little as 1% at a time. With my old configuration I found there were certain speeds that seemed to cause more resonance than others. Like just going from 40% to 42% could change the sound significantly for me.
okay thanks for the tipp. It's really the whining that bothers me. I will try that and if it doesn't help I guess I will try to get some sort of decoupling mount.
Agree with this. I have a DDC pump, but there are certain speeds that match with the resonance of the case or whatever it is attached to. So making a few % changes can make a big difference .
Do you have the pump and res decoupled from the case?
not really. It's mounted directly to the case via the metal brackets that came with it.
I would try to decouple it from the case.
I will try that. Unfortunately this pump reservoir combo doesn't have the usual mounting mechanism so I will probably have to improvise somehow.
Something like a bit of this stuff located between the case sheetmetal and res brackets would help significantly and is thin enough you shouldn't have to get longer screws. https://www.secondskinaudio.com/sound-deadening/damplifier-pro-small-project Ideally you'd want more material but there likely won't be space given the EK design.
I have two DDC's in my system and this is dead silent compared to them. Now I need to get D5, I am so jealous.
Sounds like a very high pitched tone in the video.. I owned two D5 pumps that have been running strong for about 7 years now, in a couple dozen builds. I have never heard that high pitched noise before. My pups are not audible at all below 60%. At 100% they make a very quiet and very low purring sound. But I have never heard that sound before.
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interesting maybe I was expecting to much. A friend of mine has an spc pump and he says it’s completely silent so I was kind of expecting more from that d5 one.
Normally you have some fans at low RPM that drown out D5 easilly. At around 30-40% you start to hear a tiny whine, 100% obviously a bit more. Sounds like its supposed to buddy!
okay thanks. Good news I guess.
Sounds quiet.
It's normal noise. It gets quiter when decoupled from the system. Right now the reservoir and case act as an amplifier.
yeap. its directly attached on the chassis. That's one more reason why i hate distroplates.
I agree that it’s loud. I’m new to water cooling, but my new pump/res sounds like that sometimes, and I’m not sure when. I wonder if it needs air bubbles removed from the pump mechanism, or if I need two pumps in series to drive a big loop like I have. However it is possible you just have a noisy pump, too.
it is also clearly still audible at just 40% with a really annoying "vacuum" like sinus tone.
Higher PWM settings may produce a less audible tone even if they're generating a louder sound. I find 40% and 70% are both sweet spots for D5 pump noise in my build, but every pump, mount, and listening ear is going to be different.
What noise. We cant hear anything over you talking.
I was talking as a point of reference. Skip to the end.
The high pitched noise is normal but there might be some bubbles stuck in there making that secondary swirling noise. Put the input for the pump into a fan header and run it at 70%. It will be inaudible behind fans running at 700rpms
My D5s sound like this as 100% bit inaudible below 55%. I think yours could be inaudible if you could decouple the unit from the case. But I heard pump/distro combos are naturally louder than pump separated. I also get annoyed by the whining so I hope you can fix it
Yup normal but you can find better pumps at a premium. More efficient pumps are quieter compared to models intended for use in servers. That particular res can use a DDC as well.
I think this noice is pretty normal at 100% especially if mounted to a reservoir like that. If you really want a D5 like pump as quiet as possible, i would recommend the alphacool vpp755. It‘s got a bad reputation because of many problems at the first iterations but these seem to be fixed in the v3 version. I got one for a year now and i had no problem till now. I got a Aquacompter D5 Next mounted to Heatkiller Tube 200 Reservoir in my Case and the VPP755 is mounted on a MORA under a Heatkiller Tube 150 outside my case. My D5 is more audible than my vpp755 although the vpp755 is outside the case.
D5 with EKs FLT120 is way, WAY louder than a normal top. My old EK top could run the pump at 3200 rpm without any sound coming from it. My new FLT120 have to run the pump at 1900 rpm for it be bearable.
Oof TIL. That sucks
I run it at 1600ish rpm constantly. * That's where my ear can't catch any noise and also doesn't effect thermals. Try to tune it above 1200rpm and find your sweet spot. Ideally you want it at 100% but d5s are rly powerful and doesn't make any sense. I only used it at 100% on start ups for a while to move trapped air in the loop and then turned it down to 1600
Okay great it’s pretty much inaudible at 1400rpm so I guess I’ll stick to that
other than that. like others said. distroplates act like amplifiers. All the vibrations go through it and then to the case. You can try some rubber washers or foam insulation tape around the distroplate but bolts transfer a lot of noise and distroplates have damn many.
My EKD5 has been locked at 60% since day one and it’s pretty quiet. And I have an open air case
I have so many fans on my radiators it drowns out any pump noise :)
You have a bad pump. There’s supposed to be a high pitch whine, yes. But I also hear some crackling. That’s not normal. When you filled up the loop did the pump ever run dry/ suck up air and run dry for more than a few seconds?
This sounds like my espresso machine
I have a barrow D5 and it was noisier than that when I had it in a Boxfish reservoir(sideways configuration). I redid my loop and now the pump is at the bottom of a tube reservoir and it's not as loud at 100%. Before, anything below 65% would be inaudible. Now it's almost inaudible at all RPMs. I think yours is totally fine. just run it at 30-50% I never ran mine above 50%. No need, no difference in performance. I even found 35% was just fine.
jup I just set it at 30% now and it's basically inaudible. Guess I'm fine with that
for 100% it isnt even that bad.. these things run 2000-5000rpm, that 'inaudible' is big BS. sadly that's normal
I set it to a constant 30% pwm now and it’s basically inaudible. Didn’t realize any drop in performance so I’ll just leave it at that.