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XSPC Rasa 750 RX360 WaterCooling Kit

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  • Water Cooling
  • Computer
  • CPUs
  • Overclocking
Last response: in Overclocking
April 11, 2012 5:01:37 AM

i literally JUST put in my XSPC Rasa 750 RX360 WaterCooling Kit, but i modded it to cool 2 560 tis and my cpu. in the process it goes though 2 3x140mm radiators.

i turned my computer on for the first time and let it run to bubbles out and everything and my pump stopped working...no leaks, nothing. could it have been that the pump was overworked?

More about : xspc rasa 750 rx360 watercooling kit

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April 11, 2012 5:10:35 AM

describe how you filled the system exactly pleases???this will help to determine whets going on here.
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April 11, 2012 5:17:22 AM

well i turned the pump on after i couldnt fill the reservoir with water any more, and kept filling it until it had enough water.

straight from my reservoir it goes up to a radiator in the top of the case. but when it was coming out the outward tube, there was just a huge air bubble, more like a waterfall that was not going to get itself out. so i laid the pc on its side, and the bubbles vanished.

it ran like that for a while, and i wanted to switch the pump molex plug with a different molex, so i (while the computer was on) unplugged the pump and plugged it back in. and when i plugged it into the new molex, it started puttering, as if it were hardly working. so i unplugged it and plugged it back in and it did the same noise. so i repeated and then it stopped.
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April 11, 2012 5:34:31 AM

what you have described would not destroy that pump I know that this might sound mean but did you clean your new system before install. there might be something inside the pump stopping it ( EX: a small piece of plastic from the construction of the system itself)and another thing I never install anything before letting it run for at least couple of days outside of the computer case( EX: old power supply and some floor space) all on its own easer to diagnose issues to.
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April 11, 2012 5:40:44 AM

no i didnt, nothing is mean dont worry im still learning. this is my first build.

so if there were something stuck in there how would i get it out?
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April 11, 2012 5:45:30 AM

also, i simply hooked it up to a 12v power supply and it sparked when i touched the wire to wire.

so if it were dead, would there be a complete circuit to make the spark?
....actually the water could complete the circuit nvm...
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April 11, 2012 5:56:41 AM

well I would remove the system from the case, and drain it than clean and refill. FYI if the water was completing the circuit the system would run slow if at all, the more pure the water (EX: distilled water) the less likely it is to conduct electricity at all. if the water is completely pure, it is a pure insulator, with means that it will not conduct at all hope this helps.
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April 11, 2012 6:04:10 AM

toolmaker_03 said:
well I would remove the system from the case, and drain it than clean and refill. FYI if the water was completing the circuit the system would run slow if at all, the more pure the water (EX: distilled water) the less likely it is to conduct electricity at all. if the water is completely pure, it is a pure insulator, with means that it will not conduct at all hope this helps.

Ok thanks a bunch!
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April 11, 2012 6:21:00 AM

hay it wouldn't hurt to add a fill/flush system to the loop hay, here is how I do a fill system for my builds. http://www.fastfittings.com/plastic-push-in-fittings I use two T's and three shut off valves, you can usually find these at a hardware store. configured in this order T than shout off valve than the second T this should make a straight shot from one end to the other, now where the T's branch off is where the other two shout off valves go. now I usually would attach this right after the pump but any where will work. now you have the ability to force the system to flow throw a make shift reservoir. a 2 liter container or half gallon container works well for this purpose. attach hoses about two feet long to the ends of the two shout off valves, and put both of them into the container. you will need to fill the container with distilled water or whatever you use as a liquid coolant. ok so you know the direction of the flow, that is that, one of the hoses is putting water into the container. while the other one would be pulling water out of the container, pull the draw line out of the container. the easiest way I have found to prime a system is to either use a large syringe( not the type with a needle)but used for filling medical nutrition bags, for line feeders, or a squeeze bottle with a end that is large enough to be pushed into the end of the hose to make a tight fit. then start filling your system as much as possible by hand. then when you don't think that you can get any more air out of the system by hand. fill the intake hose as much as possible and shove it back into the container and turn your pump on. it may take a little time to get all of the air out of the system but the pump should be able to handle it from here. once all of the air is out of the system simply turn the intake and outlet valves off and the center valve to the on position remove the fill hoses from the shout off valves and you are done. this might help to get the air out of the system.
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April 11, 2012 6:47:17 AM

How high are the radiators compared to the resivior. You may be pushing the limits of that particular pump. I have mine through 2 rads, 2 gpu, and cpu. I mounted the res as high as I could and even so, the flow isn't the graetest, but works the way I have it. Ek blocks on my 6970s

Top rad iis only 4 inches or so above the res. You may be over the head pressure.
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April 11, 2012 7:13:22 AM

the pump/ res is only about 4 inch below my highest radiator as well. The pump is in the drive bay.

I've tried everything to try to get what (if there is anything) is in the way out of the way.

I'm hooking my pump up to a 12v power supply to check it tp see if it works. When I hook it up though it makes a very soft high pitched sounds, almost inaudible. I'm wondering if that sound is hopeless or not? Is it the sound of the pump trying to move? And if it was dead would it be able to make any noise at all?

Also, I've been looking down the valve to the pump rotor or blade or whatever and moving it with a tiny screwdriver to see if I can free anything...the thing is though is that it moves but it just goes back to where it was before I pushed it, in both directions? Any suggestions? I can't take it apart or anything because its inside a reservoir and that's fixed.
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April 11, 2012 7:25:45 AM

wooooh!!! there it's ok don't freak it's a steeper motor, and the reaction that you are getting from it is normal!! the fact that it hums is a good thing, did you read the post I placed earlier. if so what you had is called a air lock of the system, this means that there was still too much air in the loop for the pump to handle. they really can't handle any air at all for long periods of time, in my opinion. but there is arguments to this issue to the contrary. regardless I thank that your fine, please do not poke at the motor propeller the seals don't like that. build a fill system for the loop and try agene.
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April 11, 2012 7:40:39 AM

What is your routing through the loop starting from the pump.
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April 11, 2012 8:00:05 AM

plattman02 said:
the pump/ res is only about 4 inch below my highest radiator as well. The pump is in the drive bay.

I've tried everything to try to get what (if there is anything) is in the way out of the way.

I'm hooking my pump up to a 12v power supply to check it tp see if it works. When I hook it up though it makes a very soft high pitched sounds, almost inaudible. I'm wondering if that sound is hopeless or not? Is it the sound of the pump trying to move? And if it was dead would it be able to make any noise at all?

Also, I've been looking down the valve to the pump rotor or blade or whatever and moving it with a tiny screwdriver to see if I can free anything...the thing is though is that it moves but it just goes back to where it was before I pushed it, in both directions? Any suggestions? I can't take it apart or anything because its inside a reservoir and that's fixed.


here is a look at how i build a fill and flush system

http://imageshack.us/photo/my-images/204/fillsystem002....

it should make things easier
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April 11, 2012 2:42:18 PM

my loop: pump/res--->radiator---->cpu---->radiator---->both gpus---->pump/res

so what youre saying toolmaker_03 is that if it is airlocked, that with water in the pump it should work again? because it stopped working when there was water in the system
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April 11, 2012 2:46:38 PM

OK, first, let's dispel some common misunderstandings.

A water loop pushes water as much as it pulls...similar to a loop of rope around a pulley. What you are encountering is an air lock- the pump isn't able to dislodge air in your loop.

Are you seeing air pockets in your tubing? Is water sloshing in the reservoir? Please stop shorting wires in your case unless you like replacing power supplies or the majority of components in general. It takes very little to fry a lot of gear in a PC, so just be aware when you are shorting out wires to see if they 'spark'.
Quote:
it ran like that for a while, and i wanted to switch the pump molex plug with a different molex, so i (while the computer was on) unplugged the pump and plugged it back in. and when i plugged it into the new molex, it started puttering, as if it were hardly working. so i unplugged it and plugged it back in and it did the same noise. so i repeated and then it stopped.


You really shouldn't do this while the power supply is running. Also, is your ATX plug jumpered? (recommended when filling a loop) Or are you simply powering on your machine normally? (not recommended)

Pump whine is fairly normal for these pumps.

Again, what you are encountering is very likely an airlock. Your pump inlet isn't getting water to discharge out the outlet so it's stalling. You can do a couple things: add a T-line just before your pump inlet to use to fill with a funnel to maintain enough water so the pump doesn't airlock, or continually start/stop the pump when you are trying to completely fill and prime your loop.

Please add some pictures of your loop if you can, in case there is more to this issue than just an airlock, such as, are your GPUs setup correctly to allow flow through either serial or parallel.
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April 11, 2012 3:14:12 PM

plattman02 said:
my loop: pump/res--->radiator---->cpu---->radiator---->both gpus---->pump/res

so what youre saying toolmaker_03 is that if it is airlocked, that with water in the pump it should work again? because it stopped working when there was water in the system


yes there was still too much air, and not enough water in the loop to prime the system properly for operation. even after the pump is capable of moving the water through the loop it will still takes me a day or two of working at it, to get all the air out of the system. little bubbles hear, little bubbles there, hidden throughout the system, it's fun to find them all.
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April 11, 2012 4:29:40 PM

So what will actually get the pump back running again? Because I've filled it completely up with water separate from the loop and pluggled it in and still nothing. It seems as though what everyone is saying is that it should simply work with enough water...
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April 11, 2012 4:42:37 PM

plattman02 said:
So what will actually get the pump back running again? Because I've filled it completely up with water separate from the loop and pluggled it in and still nothing. It seems as though what everyone is saying is that it should simply work with enough water...


what power supply are you using to power the pump at this point? is it the one for the computer and if so is the power supply plugged in the motherboard? if not the power supply must be jumped in order to send power to the rest of the plugs. pleases do not plug it back into the motherboard unless you have air cooling attached to your components to prevent them from being damaged. same goes for if you are using a old power supply it needs to be jumped ( jumped is the completion of a circuit via a wire or connector made for this purpose )
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April 11, 2012 5:18:12 PM

Well right now I'm testing it with a wall 12v.
It was plugged into my computer but I haven't jumped anything...
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April 11, 2012 5:59:22 PM

plattman02 said:
Well right now I'm testing it with a wall 12v.
It was plugged into my computer but I haven't jumped anything...




well this is something that I would rather not try to explain, and they say that a pitcher is worth a thousand words, in this case I believe that they are very much correct. so here is a picture of a connector used for this purpose
http://imageshack.us/photo/my-images/835/psconnshort.gi...

http://imageshack.us/photo/my-images/835/psconnshort.gi...
I would suggest buying a connector for this purpose
that way your other power lines will be charged and you can ues them
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April 11, 2012 6:19:28 PM

plattman02 said:
Well right now I'm testing it with a wall 12v.
It was plugged into my computer but I haven't jumped anything...



Please elaborate.

Looks like I need to add a section to the WC sticky on how to jump your ATX plug.
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April 11, 2012 6:33:05 PM

rubix_1011 said:
Please elaborate.

Looks like I need to add a section to the WC sticky on how to jump your ATX plug.


yes, that would be helpful. good idea!
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April 11, 2012 7:06:28 PM

I am simply connecting each wire of the pump with each wire of the 12v dc plug that I have to test the pump.

Now I'm confused whether or not you're saying the problem with my pump is the fact that I haven't jumped my cables yet, or its the air that is going through the pump...??

I do have one of those connectors btw that I will put in.
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April 11, 2012 7:12:19 PM

Quote:
I am simply connecting each wire of the pump with each wire of the 12v dc plug that I have to test the pump.


Is this a standalone power supply, or what is this? Can you provide details? I have a fear you are using some random 12v power adapter and sticking wires into the molex adapter of your pump. You'd want to leave the pump plugged into the molex or appropriate adapter for the pump and jumper your ATX plug as described in the sticky and below.

The following is an excerpt from the watercooling sticky, with the recent addition of the image file:

Quote:
Once tubing is routed, make sure all fittings and clamps are tight. Begin filling your reservoir with water and cycle the pump via power. Most people unplug the ATX plug from their board (highly recommended) and jumper any green to black wire with a paperclip. You can also buy some specialized power supplies that provide minimal power to a single molex, these also work great. Regardless, you don't want any power going to anything other than your pump, if possible. Your fans might spin up, but that's fine. Cycle power on until the pump sucks the water almost all the way down, power off. Refill the res, repeat as necessary.

Make sure to note the location of the ATX tab in relation to each wire. Jumper the green wire (ATX tab up, 4th from the left) with any black wire. Personally, I jumper the adjacent black wire (ATX tab up, 3rd from the left) since it's closest, but green to any black will work:


Once you have the loop filled, you'll want to let it run in the above manner for several hours, checking every 15 minutes or so for the first hour. Overnight running would be good once you are sure there are no immediate leaks. Keep paper towels handy and around fitting areas...check for dampness. If none and you've leak tested for at least a few hours, you are likely good to go.


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April 11, 2012 7:13:12 PM

plattman02 said:
I am simply connecting each wire of the pump with each wire of the 12v dc plug that I have to test the pump.

Now I'm confused whether or not you're saying the problem with my pump is the fact that I haven't jumped my cables yet, or its the air that is going through the pump...??

I do have one of those connectors btw that I will put in.


good, and yes, once you put the connector on the power supply MB power connector, and turn on the power supply on the pump should turn on. have you filled the system as much as possible by hand, and have it set up to run through a make shift reservoir??? for the purpose of bleeding the system of all the air that remains.
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April 11, 2012 9:58:24 PM

Wow thanks so much rubix! That makes it so much more clear!! So when "jumping" the power supply, is this just a temporary thing just to get the pump goiing or is it to be left in as long as the pump is in the system?

And toolmaker, I only had a liter of water that I ordered and that was just barely enough to fill the loop. With all the bubbles in it the res was filled about halfway. And I haven't don't the makeshift reservoir yet, I will when I get home. I'm anxious to jump the power tonight.

Also, can I buy purified water at the store for the loop or does it have to be the superpurified stuff you get online?
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April 11, 2012 10:19:02 PM

You can just use bottled (non-mineral) water or distilled which are available at most grocery stores for less than $1.

And yes, you only run your power supply and pump like this for the filling and bleeding of air portion. Once you have removed as much air as you can and are sure you don't have any leaks (couple hours minimum), pull the paperclip or wire and reconnect the ATX plug when you are ready to power on your machine.
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April 11, 2012 10:26:56 PM

plattman02 said:
Wow thanks so much rubix! That makes it so much more clear!! So when "jumping" the power supply, is this just a temporary thing just to get the pump goiing or is it to be left in as long as the pump is in the system?

And toolmaker, I only had a liter of water that I ordered and that was just barely enough to fill the loop. With all the bubbles in it the res was filled about halfway. And I haven't don't the makeshift reservoir yet, I will when I get home. I'm anxious to jump the power tonight.

Also, can I buy purified water at the store for the loop or does it have to be the superpurified stuff you get online?


you can put tap water in the loop if you flush it every week and at that point you would half to, the purity of the water matters for how long it will last before it needs to be flushed. I don't even know what super pure water is. unless it is intrinsic and that is hard to achieve and doubt you would be buying it online usually found only in labs. regardless I put water wetter in all my systems for many reasons maybe you could to, it will help to stabilize it. yes the jumper stays attached to the power supply until you are ready to install the loop back into the computer. in a couple of days.
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April 11, 2012 10:54:58 PM

@ OP - i knew of a guy in my country who just removed the pump header off of a mobo that powered an H100, while the machine was running) and he fried the pump motor. Please don't randomly plug/unplug stuff from the PSU while everything is running. Power down and reconnect/disconnect...and then power back up.

i wouldn't use tap water if i were you...dude. please be careful of what you're advising OP to do. mineral build up is another hidden enemy in a WC'ing loop.
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April 11, 2012 11:32:58 PM

Lutfij said:
@ OP - i knew of a guy in my country who just removed the pump header off of a mobo that powered an H100 and he fried the pump motor. Please don't randomly plug/unplug stuff from the PSU while everything is running. Power down and reconnect/disconnect...and then power back up.

i wouldn't use tap water if i were you...dude. please be careful of what you're advising OP to do. mineral build up is another hidden enemy in a WC'ing loop.



sorry, I wasn't trying to tell him to actually do that. but I see your point. I was trying to show the relationship between the purity of the water and the amount in with you would half to flush the system. I guess that I could have stated it better, while stressing the fact!!! that you should not put tap water in the system!!!
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April 12, 2012 12:28:47 AM

well i just jumped the power, and the pump is the only thing plugged in and its still not working :( 
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April 12, 2012 12:42:03 AM

plattman02 said:
well i just jumped the power, and the pump is the only thing plugged in and its still not working :( 


can you send a pic, let me see what is going on, otherwise I will have to ask you to pull out a multimeter, and give me the readings off the power supply terminals. I can explain how to use it, if you don't already know.
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April 12, 2012 1:13:57 AM

toolmaker_03 said:
can you send a pic, let me see what is going on, otherwise I will have to ask you to pull out a multimeter, and give me the readings off the power supply terminals. I can explain how to use it, if you don't already know.

jumped power:


only thing plugged in:


are these showing up?
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April 12, 2012 1:30:41 AM

nope

copy direct code of image from photobucket and add in between without the +'s
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April 12, 2012 1:30:46 AM
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April 12, 2012 1:38:40 AM

erm, if you're pump is dead, how come the res seems to have condensation in it, meaning that heat is getting to the res. hold your ear next to the res and see if you can hear anything.
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April 12, 2012 2:13:22 AM

sorry, i fixed the pictures.

yes, my power supply turns on.
and yes, the pump makes a quiet high pitched noise.
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April 12, 2012 2:19:57 AM

plattman02 said:
sorry, i fixed the pictures.

yes, my power supply turns on.
and yes, the pump makes a quiet high pitched noise.


ok cool, than the pump is working, let's see the fill system like the pitcher i sent the link to with, and the make shift reservoir
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April 12, 2012 2:30:27 AM

i couldnt get my hands on the parts you posted. how will that do anything with my pump though if it wont even run?
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April 12, 2012 2:37:05 AM


if it is humming, it is running. the loud gargling noise you where hearing, was air and water mixed going throw the pump. I like flow meters they allow you to see the flow of the liquid through the system the electronic ones are even better
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April 12, 2012 2:46:16 AM

no its not humming and no water is moving AT ALL. there are sections of tubing that are just air, and the pump is absolutely still. the noise im hearing is an almost inaudible very high pitched noise. the only way i can hear it is with my ear in the water hole, and with my power supply on i can barely hear it even then. i cant stress how quiet this noise is. and the pump is completely still
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April 12, 2012 2:46:40 AM

i just realized there was this confusion this while time hahaha
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April 12, 2012 2:52:50 AM

plattman02 said:
no its not humming and no water is moving AT ALL. there are sections of tubing that are just air, and the pump is absolutely still. the noise im hearing is an almost inaudible very high pitched noise. the only way i can hear it is with my ear in the water hole, and with my power supply on i can barely hear it even then. i cant stress how quiet this noise is. and the pump is completely still


ok then, you're not going to like this, but you can try to send the pump and res. back to the company for replacement and reinstall. or you could buy a new pump and separate res. for this build. the pump seems to be dying on you they slow down jest before they stop completely.
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April 12, 2012 2:56:21 AM

ok thank you
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April 12, 2012 2:56:34 AM

Best answer selected by plattman02.
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April 12, 2012 3:09:03 AM

i have this kit and had to request a replacement pump initially. it was too noisy. i sent an email through their website and i had to send them a video and a picture of the pump and they mailed me a new one free of charge and i didn't have to send the original back.
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April 12, 2012 4:36:37 AM

okay so its a bad pump, thas what i've seen alot of on xtremesystems, ocn and hardforum. the pump isn't that good to handle all that ...
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April 12, 2012 1:53:45 PM

This topic has been closed by Rubix_1011
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