EK DDC 3.1 pump issues?

[jasonc_01]

Hey all.

 

Anyone have experience with the Ek DDC 3.1 pump? 

 

I'm building a PC 011 for a customer and they supplied all Ek parts, including the side mount disto plate which comes with a DDC 3.1 pump.

 

I have lots of experience using d5's and DDC's in the 3.2 and 3.25 flavors from Ek and swiftech among others. This thing seems to be giving me problems.

 

I'm trying to do a first run of the loop with distilled water and the flow is anemic at best. It will not cycle the loop fully, it's just a medium trickle.

 

I was trying to cycle it for hours yesterday with no change in flow. The pump impeller has no air in it and the bios says it's running at just over 3000 rpm. 

 

So I'm at a loss here on whether it's just me, the pump sucks or its defective.

 

Loop is two pe360 rads, cpu block, GPU block, vrm block and distro plate. 

 

Any help would be appreciated

[W-L]

5 hours ago, jasonc_01 said:

-SNIP-

Can you provide a photo of the loop, sounds like there is a trapped pocket of air preventing proper flow.

[Neggy-Z]

Try tilting the system, while bleeding, in ways to where air will naturally want to flow to the highest point while also moving it along the line in the loop.

 

My setup is similar and i had the same issue, even with a d5 pump at 50%, i couldn't get the air out of the second rad which was the last part of the loop before going back into the res.

[jasonc_01]

On 3/18/2020 at 9:41 PM, W-L said:

Can you provide a photo of the loop, sounds like there is a trapped pocket of air preventing proper flow.

 

13 hours ago, Neggy-Z said:

Try tilting the system, while bleeding, in ways to where air will naturally want to flow to the highest point while also moving it along the line in the loop.

 

My setup is similar and i had the same issue, even with a d5 pump at 50%, i couldn't get the air out of the second rad which was the last part of the loop before going back into the res.

Sorry guys for the late reply. Thanks for you suggestions. I ended up staring at it another few hours, putting around before I noticed that the cpu block was assembled wrong.

 

The cold plate was installed in the wrong orientation to the jet plate.

 

Good old EK. Its like every build I have some sort of issue with an EK product, and they used to be so good with QC.