Very strange water cooling problem? - Video Included :)

Ryancope123

Ryancope123

Ryancope123

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Joined
15 Apr 2016
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73
Hi Guys,

New member here to the forum =)

I have spent countless hours searching threads for an answer to this one, but so far no luck.

I installed a EK D5 PWM resevoir 1500LPH version combo into my custom build to replace a faulty unit, i have bled this new one for 24 hours as well as shaking it vigorously and removing all the air.

There is a strange "trickling noise" when i up the RPM at 50% 2128rpm, you can just about hear the odd "trickle of water " every now and again ? no set pattern as such.

at 100% 4800rpm please see video below, you can clearly hear a noise of water flow over the pump, my other EK MX (Cheaper reservoir didn't do this) that however did not have a impeller housing, is it purely the impeller housing causing this noise and is it normal ? its very frustrating as its almost silent at 50% but the odd sound of a "trickle is annoying"
;) i thought about air over the impeller housing but have literally tipped the case upside down?

visually you cannot see any flow which concerns me a little the temperatures are very low so i'm not too concerned with flow. Although i have ordered a flow meter to build into the loop.

i7 4790k @ 4.6 Ghz- 24 idle.
980 Posideon - 24 idle.

I have put together a quick video below, if anybody could be so kind to give some expert advice that would be greatly appreciated. I hope my actual loop itself is configured OK?

Am i simply worrying over nothing, and this is perfectly normal?


https://www.dropbox.com/s/l8oim3md6baxb96/20160416_111334.mp4?dl=0
 
I'm not a fan of PWM Pumps, prefer Vario, the sound may vanish over time, try running the case on it's side for an hour then on other side, shaking can sometimes just cause air to move to another location, once you have the case back in it's normal position open the fill port and let it run for a while.

Sometimes it's a pain to get rid of air, but you are still at the micro bubble stage :), need a bit more running yet to clear those.
 
I have purchased a vapo chill flow meter, going to add it on the return to the pump, is my setup ok in terms of layout? i made it up, didn't do much research on the actual layout

Where you see a tight bend at the return, this will be where i will place the flow meter in a 90 degree config to break this bend up.
 
like said air can take a while to fully be removed. Just leave the pump on max speed. It can take a few days. Best bet is to ensure all plugged off and tilt the case as far as you can.

Where is the inlet to the reservoir? It's not putting water in above the fill line is it?
 
tyler_jrb said:
like said air can take a while to fully be removed. Just leave the pump on max speed. It can take a few days. Best bet is to ensure all plugged off and tilt the case as far as you can.

Where is the inlet to the reservoir? It's not putting water in above the fill line is it?
Click to expand...


Hi mate, nope at the bottom :) I will be patient and give it a week to completely die down cheers again all
 
Hi Guys, i have installed a flow meter and im a little concerned my pump is dead ! :(

It makes a noise to sound like its working however, the flow meter is not moving at all !

As you can see in the picture , i have installed the primochill flow meter on the return from the radiator to the reservoir, is this ok to do?

It doesn't want to spin which suggests my rig has very very low flow rate.

Any suggestions?
 
Last edited:
What are the temps like?

If it's so little to not spin the flow wheel. Temps should be very high. Those types of block are known for being more restrictive than other blocks but they wouldn't stop flow completely.
 
Poseidon I find quite restrictive, I have 2x 980 Ti and have just last week put them in a separate loop, the inner tube dimension is something like 4-5mm so very narrow and even with the pump on 40% ( its a 140mm EK Revo D5 PWM ) while leak testing it has quite a slow flow rate, I'm guessing i will need it on 60%+ when finished to get a decent flow ( faulty CPU as soon as it was built, so awaiting for replacement for rebuild )
 
Hi Guys,

I have just drained the loop down for the 6th time, i found the problem !

Somebody had put the CPU copper block on the wrong way ( i brought this part second hand) doh !!

I did test without the posideon and with, and WoW it makes a massive difference.

My flow meter is going around a treat, however it was literally a tsunami without the 980 attached.

What are your thoughts, i am doing some stress testing right now.

CPU under prime 95 @ 4.6ghz is 70 degrees while simultaneously running the GPU under load and that's 48.

Would it be worth replacing the 980 stock water block?
 
mingey said:
Poseidon I find quite restrictive, I have 2x 980 Ti and have just last week put them in a separate loop, the inner tube dimension is something like 4-5mm so very narrow and even with the pump on 40% ( its a 140mm EK Revo D5 PWM ) while leak testing it has quite a slow flow rate, I'm guessing i will need it on 60%+ when finished to get a decent flow ( faulty CPU as soon as it was built, so awaiting for replacement for rebuild )
Click to expand...

Is there a huge difference ? i am tempted to get a EK block for my posideon as the flow was incredible before.

Have a look at the video below, that's the flow its at currently.

https://www.dropbox.com/s/uuzuzkksa60a4a0/2016-04-23 13.54.18.mp4?dl=0

360MM rad
240MM rad
few 90's etc.
 
You won't find a huge difference in temps, you'll find that you have fixed the problem I imagine with the block fitted wrong, Would probably be a 1-2 degree difference with the slower flow rate, if any.
 
mingey said:
You won't find a huge difference in temps, you'll find that you have fixed the problem I imagine with the block fitted wrong, Would probably be a 1-2 degree difference with the slower flow rate, if any.
Click to expand...

Thanks for the advice, i was tempted to sell my 980 Poseidon and purchase the one of the limited edition 295X cards Asus did the Ares iii, with the EK block.

However, i hardly game so not much point really !

Thanks for the help champ
 
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