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Pump is RIDICULOUSLY loud, been running for 2 straight days now (MCP655-B) - SOLVED!- - Page 3

post #21 of 39
What res do you have? and how full is it?
Quote:
Originally Posted by PeteJM View Post

Also, the reason there are so many air bubbles, is that the pump is running full tilt 100%. That shouldnt happen, you need to run it at 25%-75% MAX. You should never have to use a pump at 100% for any watercooling system. At that point, you are limiting the waters ability to absorb heat, and then negatively effecting your temps.
The presence of bubbles is not as dependant on pump speed as you make it out to be. I run both my 655s at 100% with no bubbles. Infact, running at higher speeds removes bubbles when I fill/bleed my system wink.gif

Also, his pump is not running full speed. It is set to speed 4 out of 5, so it is 80%. I've never seen a change in temps from running full or 80% on my pumps, so you better have some proof of that if you are going to back that statement proof.gif
Edited by just_nuke_em - 12/7/11 at 11:47pm
    
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post #22 of 39
Quote:
Originally Posted by antonr90 View Post

Almost seem like this is the issue. It seems as if the air bubbles are flying back down into the inlet. I can tell by looking at the res that there is a ridiculous amount of pressure/pushing force. So many micro bubbles appear that the res is hard to see through, it seems as if the majority of the air bubbles that are coming up to the inlet of the reservoir just end up flying back down the outlet. I'm really not sure of any solution to this, especially since I don't have a variable speed pump.

Yeah, hook the pump into a 20W Fan Controller, Lamptrons are usually good for 20W a channel.

And what is the point of having the rad after the pump? Pre-Cooling your liquid? You are using the liquid as a heat transfer medium in water cooling. You heat the water up, then cool the water down. The cool water isnt doing the cooling in this case, its the ability of the water to absorb the heat, bring it to the rad, dissapate it, then bring semi-colder water back to the next component to be cooled again.

I think if you do the loop Res - Pump - CPU - Rad - Block - Rad - Res you will be surprised at the difference in noise, and ease on bleeding the system.

Also, the reason there are so many air bubbles, is that the pump is running full tilt 100%. That shouldnt happen, you need to run it at 25%-75% MAX. You should never have to use a pump at 100% for any watercooling system. At that point, you are limiting the waters ability to absorb heat, and then negatively effecting your temps.
post #23 of 39
Quote:
Originally Posted by antonr90 View Post

Almost seem like this is the issue. It seems as if the air bubbles are flying back down into the inlet. I can tell by looking at the res that there is a ridiculous amount of pressure/pushing force. So many micro bubbles appear that the res is hard to see through, it seems as if the majority of the air bubbles that are coming up to the inlet of the reservoir just end up flying back down the outlet. I'm really not sure of any solution to this, especially since I don't have a variable speed pump.

If your able to see an air pocket in the res when the machine is off try to top it off to the point its completely brim full. Run it again and repeat or try rotating the case again attempting to lead the bubbles back into the res and fill it completely full. It may take a few times but once you have a completely full res there is no air to churn in there just water and your problem should be solved. smile.gif
Quote:
Originally Posted by PeteJM View Post

You should never have to use a pump at 100% for any watercooling system. At that point, you are limiting the waters ability to absorb heat, and then negatively effecting your temps.

proof.gif
Edited by DigitrevX - 12/7/11 at 11:48pm
post #24 of 39
Thread Starter 
I'm using a EK bay spin res, it's almost filled to the max. I believe I have a Molex to 3 pin adapter. I will try to connect the pump to my fan controller and see if slowing it down helps.

Thanks for all the suggestions, I'll report back with the results in a few.


Edit: on the loop order remark, the reason I think most people don't say loop order really matters is because eventually the water in the loop will even out in temperature and the loops order doesn't matter.
Edited by antonr90 - 12/8/11 at 1:09am
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post #25 of 39
Couple of things to check - Is your feed tube to the pump going into the front of the pump? Top barb is the outlet. And are you bleeding with a vent open? Is the water level high enough in the res that you aren't exposing the outlet tube when shaking the case (which would suck air in)?

I watched the vid but could really tell how you have things plummed - how about loading a photo with the lights turned on?
After checking your hook up, I'd turn the pump down low, say #2,open a vent and then let it run.

Good luck!
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post #26 of 39
Quote:
Originally Posted by antonr90 View Post

I'm using a EK bay spin res, it's almost filled to the max.
As long as your outgoing connection to the pump in one of the bottom holes and the res is full, then they system may just need more time to settle. Mine usually takes a couple of cycles (on for a while, then off) to get all the bubbles settled.
Quote:
Edit: on the loop order remark, the reason I think most people don't say loop order really matters as long as the res is above the pump is because eventually the water in the loop will even out in temperature and the loops order eventually doesn't matter.
Spot on thumb.gif
    
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post #27 of 39
Quote:
Originally Posted by DigitrevX View Post

proof.gif

When I get my new reference rig up and running, il do a comparison for you. One with my loop @ 25, 50, 75, and 100% with charts and everything. Did one of these back in 2006, and my buddy who did it with me wrote his fluid dynamics thesis for the academy got an A for it, so I think its proof enough. But you never know with todays advancements in pumping fluid through small spaces tongue.gif

Luckally I am going to have some pretty neat temperature monitoring hardware in this one smile.gif 2 Flow Meters, 8 Temp Sensors with an Aquaero is fun. Especially using its PhD level software to configure the whole thing. Some of the settings make me want to smash my head against the desk.
post #28 of 39
Quote:
Originally Posted by Fan o' water View Post

Couple of things to check - Is your feed tube to the pump going into the front of the pump? Top barb is the outlet. And are you bleeding with a vent open? Is the water level high enough in the res that you aren't exposing the outlet tube when shaking the case (which would suck air in)?
I watched the vid but could really tell how you have things plummed - how about loading a photo with the lights turned on?
After checking your hook up, I'd turn the pump down low, say #2,open a vent and then let it run.
Good luck!

He has it going in the side correctly then pumping upward to the rad up top and to the block ex.
Its not reversed though that would be epic.

Quote:
Originally Posted by PeteJM View Post

When I get my new reference rig up and running, il do a comparison for you. One with my loop @ 25, 50, 75, and 100% with charts and everything. Did one of these back in 2006, and my buddy who did it with me wrote his fluid dynamics thesis for the academy got an A for it, so I think its proof enough. But you never know with todays advancements in pumping fluid through small spaces tongue.gif
Luckally I am going to have some pretty neat temperature monitoring hardware in this one smile.gif 2 Flow Meters, 8 Temp Sensors with an Aquaero is fun. Especially using its PhD level software to configure the whole thing. Some of the settings make me want to smash my head against the desk.

Looking forward to it.
I have my own proof having a sibling that is a chemical engineer. And that you are the first person I've seen make this statement in a few years. smile.gif
Edited by DigitrevX - 12/8/11 at 12:16am
post #29 of 39
Thread Starter 
Haven't gotten to try most of the recent recommendations (watching a movie at the moment), however here is a picture for the people who were asking.


.700
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post #30 of 39
Thread Starter 
Quote:
Originally Posted by PeteJM View Post

When I get my new reference rig up and running, il do a comparison for you. One with my loop @ 25, 50, 75, and 100% with charts and everything. Did one of these back in 2006, and my buddy who did it with me wrote his fluid dynamics thesis for the academy got an A for it, so I think its proof enough. But you never know with todays advancements in pumping fluid through small spaces tongue.gif
Luckally I am going to have some pretty neat temperature monitoring hardware in this one smile.gif 2 Flow Meters, 8 Temp Sensors with an Aquaero is fun. Especially using its PhD level software to configure the whole thing. Some of the settings make me want to smash my head against the desk.

Well I finally got a chance to hook it up to my controller, set it as low as I could and FINALLY the pump has become almost dead silent, other than the few occasional air bubbles passing through..Temperatures seem pretty much the same aswell (edit: actually temp's are even lower now). Thanks for that advice smile.gif.. I'm pretty sure the whole problem was the pump, pumping way too fast, and air bubbles just going straight out of the inlet.

+ Rep to everyone who has helped.
Edited by antonr90 - 12/8/11 at 2:16am
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