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EK Launches a New Dual DDC 3.2 PWM Pump Setup

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#1
EK Water Blocks, Ljubljana based premium water cooling gear manufacturer, is proud to introduce EK-Dual DDC 3.2 PWM X-TOP, a third generation high-performance aftermarket DUAL pump top (volute) for DDC type water pumps, pre-installed with two EK-DDC 3.2 PWM water pumps.

Using two water pumps in series provides almost twice the pressure head (up to 10m) of a single water pump and also guarantees top safety measure - in case of one pump fails the remaining one will provide sufficient liquid flow to prevent any hardware damage due to overheating. Additionally there is no downtime until next scheduled maintenance.

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#2
I kinda like this, I'll probably take one for my two PMP400s.
 
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#3
Wow very cool looking, might have to take a "closer" look at this ;)
 
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#4
Loving this. Can EK do any wrong?

Clean, simple design that doesn't draw attention to itself or force strange color schemes on customers... couldn't ask for anything more.
 
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#5
i wonder how it perform against swiftech mcp35x2
 
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#7
I haven't used any DDC pumps in probably half a decade now. Have they gotten any quieter?
I have not personally used one myself but I was going to purchase one for my loop but went with a d5 instead as nearly every source suggested that while they have excellent head pressure they run hot and loud, so assume nothing has changed.
 
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#8
I have single version of these ones and it's pretty sucks.
 

Pholostan

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#9
I haven't used any DDC pumps in probably half a decade now. Have they gotten any quieter?
Not really. The design is pretty much the same. PWM control makes it easy to keep them on lower RPMs and then they are reasonable quiet. On max RPM though, that high pitched whine is very irritating. I keep my MCP35x at about 3000 RPM, then I can't hear it.

Some say custom tops make a fair bit of a difference, but I don't really know.

Edit: I think I should add that my MCP35x is part of a Swiftech Apogee Drive II Pump & CPU Waterblock Combo. I've had it for a couple of years in my main system, never had a problem with the pump. I have done some testing, and when it is very quiet at just over 3000 RPM, it only results in a couple of degrees higher CPU and GPU temp compared to max at about 4400 RPM.
 
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#10
I haven't used any DDC pumps in probably half a decade now. Have they gotten any quieter?
I have a DDC-1T PLUS running of 12V @ 4500rpm and my fans are louder 3 2000RPM Coolermaster Sickle Flows and 2 1850rpm Xigmatek XAF fans. However without the fans running the pump makes a really nice somewhat loud hum that I prefer to the noise made by any fan.
 
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#11
I have two PMP 400 running at 70/80% speed and they aren't that noisy.

I guess the right way of decoupling goes a long way :)
 
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#12
Not really. The design is pretty much the same. PWM control makes it easy to keep them on lower RPMs and then they are reasonable quiet. On max RPM though, that high pitched whine is very irritating. I keep my MCP35x at about 3000 RPM, then I can't hear it.

Some say custom tops make a fair bit of a difference, but I don't really know.
That's what I feared. In terms of absolute SPL the DDCs weren't that loud, but the shrill whine is incredibly annoying. I'd trade a few dB to get something with a low hum.