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Just installed loop, CPU overheating rapidly - Page 3

post #21 of 45
Quote:
Originally Posted by Baldy View Post
Appreciate all the help from everyone so far!

Lets try to keep this thread clean and dandy though, I'm just hope hoping to get this problem cleared ASAP. (:

Anyways, like I said just now, I am almost 100% sure that the CPU block mount isn't the problem.

However, I now do think that the air bubbles in my loop might be the issue. I do notice a rather substantial amount of air bubbles in my res (miniscule bubbles though). Would small air bubbles be the cause of this gigantic temp issue? I find it kinda hard to believe though.

What exactly is the proper bleeding method for a loop? Kind of a newbie in this area, so will need some advice.

Thanks once again!
I don't think small air bubbles would cause you to reach 100C. I almost alway have small air bubbles when I turn my system on after re-doing my loop and it only causes about a 5 degree difference.
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post #22 of 45
Prior to turning on the computer, bleeding should have been done. I don't think there is a set method of doing so. IMO, it's part of the filling process. I fill the res, turn on pump until res is nearly empty. Then add more water and continue the process. Once water is circulating, i shake the rad or case if necessary and tilt in various directions. After doing that I cycle the pump off and on several times to help bleed the loop. After most the bubles are gone, i let the loop run and go do something else. After a while i come back and then fire up the rig.
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post #23 of 45
Shake the pump...also, while you bleed the loop if its possible have a port open on your reservoir to allow air to escape more freely.

Rapidly turning the pump on and off while you shake your case will dislodge the larger pockets of air stuck in the block/pump/rad...its a bit of work, but its not difficult at all.
post #24 of 45
Quote:
Originally Posted by Baldy View Post
Here are some thing I did take notice of though.

The water around the CPU block (water going in and coming out of CPU block) is very warm when I touch it.
This is too easy: the water isn't flowing.

The only way you would get the tubing hot on BOTH sides of the CPU block is by having no flow.

Either your pump is not connected/broken or there is something else inside your loop that prevents the water from flowing.

Do a flow test as I mentioned earlier here.

I guaranty it, you don't have any flow in your loop, or nowhere near enough flow.

What kind of coolant did you use?
Edited by PepeLapiu - 5/28/11 at 1:17pm
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post #25 of 45
I'll go ahead and say:

You forgot the little plastic protection on the block?

Most people forget it, it happened to a guy I helped like 2 days ago

Take note I didn't read the full thread so it might have been checked already.
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post #26 of 45
If the water and the cpu block are hot then you have contact, you have a flow problem either a bad pump, a restriction or an air lock.
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post #27 of 45
Always make sure that tubing between the reservoir and pump is filled with water and no air pockets before you start your system.
Edited by Klockradio - 5/28/11 at 1:56pm
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post #28 of 45
i've installed 2 of these unit in the last month. everyone so far input is correct. i'll add my 2 cents.
1st: the raza cpu block have been known to have a left over "o" ring in the cpu block between the copper block and the nozzle.( no good ) it happened to me on my first unit.
2nd:the 750 pump/res combo. the pump/unit has to be completely submerged when i tested my 1st 750 build i filled the res up 1/2 ,the pump was not covered with coolant,i got no flow. i went through the tapping, shaking of the res.no go. i filled it up-BINGO. you need to fill the res and cycle the power on/off till the loop is full.
my guess would be:
1stlastic cover still on the block
2nd:no pumping
i'm just trying to help
good luck
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post #29 of 45
Just touch the rad and tubes. They should be hot. You said the tubes around the block are hot so the block is picking up the heat. The heat should be constant throughout the loop. If it's not then you have no flow.
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post #30 of 45
Thread Starter 
Well I am almost certain it is a flow issue now.

I tried bleeding the loop, but it was done in a rather mediocre way as I have idea how to do it better. I simply turned the system on, tilted the system front and back, turned off the system, then repeat. I left one port on the res open.

However, I am still seeing highly fluctuating temps, going from the 50's to the 80's in seconds.

Is there any way to just turn on the pump only, and not the entire system? Does anyone have any better suggestions to bleed the loop to ensure better flow?

The rad is not hot at all when I touch it.

Thanks!
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