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Flow Problems

post #1 of 34
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I am about to go to work so this is going to be a simple post. I got a EK Spin Res and the flow meter is almost not moving at all. It is moving just fast enough to not stall. I can't see anymore air in the lines.

http://www.microcenter.com/single_pr...uct_id=0259664
http://www.frozencpu.com/products/95...407s1030#blank
http://www.frozencpu.com/products/40...?tl=g30c95s160
http://www.frozencpu.com/products/40...?tl=g30c95s159
http://www.performance-pcs.com/catal...ducts_id=26784
http://www.performance-pcs.com/catal...ducts_id=27814
http://www.frozencpu.com/products/85...?tl=g30c97s168
http://www.frozencpu.com/products/72...?tl=g30c99s172

Pump > Dual 120mm > CPU > 120mm > GPU > Res
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post #2 of 34
If it's flowing and no air bubbles are trapped don't worry about it.

The GTS rads are very restrictive for a radiator, and the 655-B is stuck at setting 4 and not all that powerful, but it should be ok.

You could add another pump in series, but don't expect to see much temperature change.
    
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post #3 of 34
should have went with just 1 360 rad
might get you a swiftech 320qp and I think your water flow will increase
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post #4 of 34
Quote:
Originally Posted by Martinm210 View Post
If it's flowing and no air bubbles are trapped don't worry about it.

The GTS rads are very restrictive for a radiator, and the 655-B is stuck at setting 4 and not all that powerful, but it should be ok.

You could add another pump in series, but don't expect to see much temperature change.
You sure? Do you have any #'s or graphs? I would consider them on the restrictive side not very restrictive. The testing done by an OCN member for the 420's at least shows a .7 gpm flow difference between the GTS and top gpm rad and a .5 gpm delta compared to the RASA RX. I would assume that they scale relatively the same compared to one another for smaller rads.

http://www.overclock.net/water-cooli...ml#post6389202
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post #5 of 34
Quote:
Originally Posted by Arksniper View Post
You sure? Do you have any #'s or graphs? I would consider them on the restrictive side not very restrictive. The testing done by an OCN member for the 420's at least shows a .7 gpm flow difference between the GTS and top gpm rad and a .5 gpm delta compared to the RASA RX. I would assume that they scale relatively the same compared to one another for smaller rads.

http://www.overclock.net/water-cooli...ml#post6389202
Through any one component the fluid temp change is going to be below 0.5oC, by increasing the flow rate (assuming the flow is turbulent - you need about 1 gpm for this as a rule) then all you will be achieving is a very very small temp change.

Also, since the coolant spends the same amount of time in any one point in the loop in a given minute, you will find that since the temperature of the coolant isn't really changing the number of times it goes around the loop wont make much of a difference.
    
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post #6 of 34
Thread Starter 
Those rads are as much as I could fit in my haf 922 without an ugly hack. Everything is internal.
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post #7 of 34
Quote:
Originally Posted by Arksniper View Post
You sure? Do you have any #'s or graphs? I would consider them on the restrictive side not very restrictive. The testing done by an OCN member for the 420's at least shows a .7 gpm flow difference between the GTS and top gpm rad and a .5 gpm delta compared to the RASA RX. I would assume that they scale relatively the same compared to one another for smaller rads.

http://www.overclock.net/water-cooli...ml#post6389202
Sure, the coolingmasters guys tested them a while back. No personal experience though. I do have a GTX which is also high in restriction and a GTS has half as many water channels:

http://www.cooling-masters.com/articles-38-0.html



And here is Skinnee's comparison of the GTX which had similar construction but twice the number of tubes:


For a block comparison, the EK Supreme HF has a pressure drop of about 2.4PSI @ 2 GPM which is a little higher than the GTX rad.

So each one of your GTS rads is pretty close if not more restrictive than the CPU block.

Not necessarily a bad thing, it's a tradeoff for better tube heat transfer, but they are restrictive.

Anyhow, I wouldn't let it bother you, but running two GTS rads in series along with your CPU block AND the setting 4 basic pump is why you have lower flow rates. Not that flow rate makes that much difference...it doesn't. Generally as long as you can bleed the air out, I wouldn't worry too much. You could probably gain a few fractions of a degree with more pumping power if you thought that was worthwhile.
Edited by Martinm210 - 3/6/11 at 2:56pm
    
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post #8 of 34
Ah ok cool thanks for the info always glad to learn new things every day.
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post #9 of 34
I too have an EK spin res, and after taking off the front face to put in my kill coil, I tightened the screws a smidgen too tightly, preventing it from spinning freely. If the "waterfall" is still moving pretty well, and only the wheel is moving slowly, I'd check into that.

Tip: If you take off the acrylic face, that little rubber o ring can be quite the pain to get back in the channel as it's a hair bigger than the channel it's supposed to fit in. I found that placing the o ring in the freezer for 15 minutes shrunk it down long enough (without it becoming brittle) so I could get it back in the channel and screw the face back into place.

Just another suggestion.
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post #10 of 34
Quote:
Originally Posted by Arksniper View Post
You sure? Do you have any #'s or graphs? I would consider them on the restrictive side not very restrictive. The testing done by an OCN member for the 420's at least shows a .7 gpm flow difference between the GTS and top gpm rad and a .5 gpm delta compared to the RASA RX. I would assume that they scale relatively the same compared to one another for smaller rads.

http://www.overclock.net/water-cooli...ml#post6389202
Haha I guess you aren't too familiar with who Martin is

@OP, I ran that sort of loop on a single 655-vario @5 and it worked fine, unless there's a particular issue with a component you should be fine.
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