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Low Flow? Flow Meter Not Spinning - D5 Pump in Loop

post #1 of 26
Thread Starter 
I just installed a flow meter to see if i'm getting enough flow. Its not moving at all. I think there is an air bubble. I tried everything, shaking the case, putting the case upside down. I'm not sure what I can do anymore.

I'm using a swiftech D5 Pump, Darkside Resservoir, Darkside triple radiator, Swiftech CPU block and a Darkside flow sensor.

I'm at loss as to what is wrong with my loop. Did I install the res upside down? Is the D5 housing installed correctly? Appreciate all the help.

I'm thinking of just tearing this apart and getting a crappy H110

My specs are below:

Asrock x99 Taichi
I7 5930K OC @ 4.5 Ghz @ 1.226 V
Idle temps ~ 37C
Temps keep climbing during load, eventually stopping at 70C. 215Watts during load according to Hwinfo





Edited by smokey999 - 11/18/17 at 10:32am
post #2 of 26
Your res is upside down but it shouldn't restrict flow.

What d5 do you have? standard or vario
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post #3 of 26
Thread Starter 
I have got the vario. I tried running at speed 1 then went to 5 again to try and get rid any bubbles. Still nothing.
post #4 of 26
Hmm,

Has the pump ever worked, or is it brand new and this is your first time using it?

Just curious how you actually change the speed of the pump with the base of the pump being by the base of the case.

I've had air pockets myself, but this is with a radiator at the bottom of the case laid flat, so air would be stuck in the roof of the radiator.
It was easily removed by lifting the back of the base a few degrees, so you see a load of air come up through the bottom of the radiator.
But you say you've tilted your case so I don't think you should have any air pockets in the radiator.

The flow meter at the top won't be an issue, besides water can flow under gravity at that point.

Have you actually had water complete the loop during the filling process?
It looks like you have collected bubbles in the flow meter, telling me water has passed through there, telling me the pump has worked at some point.
Now that I think about it, you did tilt the case so that might be the reason why there is water in radiator.

It is a very short and simple loop, it should be a piece of cake for the pump to handle this.

Do you hear any noise from the pump, or feel vibration coming off it?
Is it possible the pump doesn't work at all?

If you have a 24 pin jumper thing, you can test the pump without having to go into windows.
That should help letting you hear the pump without distraction from fan noises etc.

Perhaps its not plugged in right into a molex, or there is a fault in the molex connector of your psu, so try a different molex.

Ultimately the pump itself just may be dead, that's a possibility.

Let me know how you get on.
post #5 of 26
Thread Starter 
hey, thanks for the response. I have to unscrew the pump housing every time i need to adjust the speed. It is a pain in the ass tbh. The pump definitely works as I can feel the vibration of it. The water was moving during the filing process, but there was a lot of bubbles.
post #6 of 26
I think you may have hooked up the cpu block backwards. I don't have that block so I can't say for sure but having it hooked up wrong could cause the restriction to flow that your seeing. Also, put the flow meter between the outlet of the pump and the inlet of the radiator, it'll work better that way.
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post #7 of 26
I just watched a video...

https://www.youtube.com/watch?v=n_96uU4oBOk

He has his block oriented the opposite way to you.
He has the water going into the port indicated by the apex of the solid triangle

But you have it the other way round.

I don't know if orientation actually matters with this block, the instructions appear not to say.



I put my flow meter about half way in my loop, but I don't suppose it matters.

It definitely needs a bit of redesigning if one can't even adjust the pump without disassembling it.
That would drive me up the wall to be honest.

Would like to know whats causing this.


I think one option is to take the pump out completely, and just set up a simple loop (pump + tube + res + tube).
Stick it on low speed and see how it performs before cranking up the speed.

That's probably what I would do, but check out the waterblock situation first incase that's the problem.
Edited by colin-java - 11/19/17 at 8:49am
post #8 of 26
Thread Starter 
Quote:
Originally Posted by colin-java View Post

I just watched a video...

https://www.youtube.com/watch?v=n_96uU4oBOk

He has his block oriented the opposite way to you.
He has the water going into the port indicated by the apex of the solid triangle

But you have it the other way round.

I don't know if orientation actually matters with this block, the instructions appear not to say.



I put my flow meter about half way in my loop, but I don't suppose it matters.

It definitely needs a bit of redesigning if one can't even adjust the pump without disassembling it.
That would drive me up the wall to be honest.

Would like to know whats causing this.


I think one option is to take the pump out completely, and just set up a simple loop (pump + tube + res + tube).
Stick it on low speed and see how it performs before cranking up the speed.

That's probably what I would do, but check out the waterblock situation first incase that's the problem.

hmm. That's a good observation regarding the block orientation. It doesn't say on swiftech's website if there is a recommended orientation. I will dis assemble this loop and set it up like you said to see if I can get the flow meter to spin. I don't think I can make any more progress with the way things are set up right now.
post #9 of 26
Why disassemble?

Just swap the pump around the it will flow the other way
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post #10 of 26
I think he needs to reposition the pump anyway.

Something weird is happening if there's no flow and there's no trapped air, which is why I suggested running it outside of the loop just to see if the pump is functioning correctly.

Thinking about it now, perhaps there is trapped air at the top of the radiator, its a different sort of radiator with ports at each end, I forget the name.
But maybe he didn't get the air out and there's some trapped.
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