Experimental radiator \build log!!!

Page 26 - Seeking answers? Join the Tom's Hardware community: where nearly two million members share solutions and discuss the latest tech.

toolmaker_03

Honorable
Mar 26, 2012
2,650
0
12,960
well here are the radiators, my problem is the configuration of them, simply too many possibilities, so if you could find the time to give your opinions, I would really appreciate it.
I also need advice on a type of shroud for the radiators, the purpose is to inshore good air flow through the radiator.
and lastly how to attach the fans to the radiators?



all advice is welcome and thank you

 
Solution
I don't use a flow meter, never have, never will.

Having a picture of a flow meter does nothing to support a finding, especially when you cannot be 100% conclusive that it is reading correctly or you are accurately converting what is being reported. Does the flow meter registering on the pump without restriction show a flow rate that is close to the rated flow of the pump with your conversion?

If so, great, but if so, you're still running lower than 1.0 gpm on your loop, meaning your delta-T MUST be offset to calculate your cooling potential. Meaning - you have to over-rad to accomplish the same cooling ability that you could achieve with a higher flow. Adding cost of 3x 360 radiators ($60, example) starts to get expensive...
Well I will use this time to give a little background on the issue that I was having 1) the processor block is very restrictive right now that loop is running at 2500RPM and that is normal.
2)getting the right flow through the video cards before with the 480 blocks they had a top end flow capacity of 6000RPM on each block so I was trying to find there sweet spot witch is around the 3000RPM range to get the most out of them. With the 580’s type of cards you are limited by the capacity of the pin matrix within the card itself just like the processors grove matrix inside it. My guess is that the restriction will have both sides of the loop running about 3000RPM or slower but we will see.
 
There was another person doing a 3 way SLI setup through blocks with a pin matrix and had his loop at a trickle by the time the water made it through the third card now adding a second motor does solve the issue but I want to see if this will work as well.

 




Plus his 2 SLI bridge tubes were 8mm ID, seriously restricting his flow.
 
Ok so there where a few issues with his setup true but I too ran into this issue when running this whole loop in a serial setup. I was getting only 1000RPM or less with one pump after adding two pumps the flow returned to 2500RPM total for the loop, with is fine. But I think that the 2500RPM constant flow rate or above can be achieved with only one pump on the same hardware with the parallel setup as I have done.

i will have pics of the total flow through the system to show my results
 


Don't forget to connect the Flux Capacitor, or you won't be able to align the Warp Coils, causing premature degradation of the Dylithium Crystals, and a short ride for your little Borg Cube!

Sorry Capn' I'm having a little SciFi flashback this morning!

"Shiny" :)
 
Well after a lot of fiddling around with the CPU loop I now have a solid 2600RPM flow on it a gain of 100RPM is better than nothing, for all the trouble that I put into it.




"When you gone eat that cookie?"

i think this ^ means somthing, but i do not know what?
 
Well with a little due diligence I have the CPU loop running quite well the video loop still needs some work but I think that it will get there if I keep playing with it. It may take a day or two but it seems achievable to get 2000RPM on each side and maybe 2500RPM as best case scenario for the loop but still, it is looking good and, I am, working on it.

 
Ok so I will keep playing with it, but 4000RPM seems to be the max that this setup will allow. That is a 1000RPM increase from a serial setup so I can’t complain but I will try to see if 5000RPM is possible but I do not think that it is with these video card blocks. They are very restrictive even more so than the CPU block. I do a flow check of the loop by restricting one side at a time to ensure that both sides flow the same and have the same amount of restriction on them if there is a difference in flow from one side to the other of the parallel loop than there is a blockage or the loop is not balanced with this setup I did not run into that issue both sides of the system run the same Yea!! Victory one down.
 
Rpm this! rpm that! Serial, Parallel, Yada, Yada, yada!

How does that relate to temperatures?

You're obviously not water cooling for looks!

So you must be after cooling performance temperatures so what are they?

Are you implying by the picture of the digital readout that temperature difference between the 2 flow rates 73.4f ~ 32.0f is due to flow rate or rpms.

BS!

Flow rate does not change water temperature, I think your digital readout is uh MAL!

As in MALfunctioning! :)
 
no I do not have the PC on yet I am only trying to get the system running right first than I will power it up and show the temps of the cards it’s 32F outside right now and the temp on the rad is 73F the temp in my house is 68F the added temp is the motor on the CPU loop with no fans on the rad on. but if you interested the temp on the video loop rads is 68F even without fans the rads can completely remove the heat generated by the motor I will be getting to the temps that you are concerned with soon I too am interested in whether or not the configuration will provide any improvement on the system temps.
 
So you must be after cooling performance temperatures so what are they?

For now let’s agree to disagree we can agree that a low flow rate is a bad thing for overall system temps, but can we also agree that too much flow would be a bad thing for the overall system performance. If so than this is an experiment to find out at what point I start to see diminishing returns on my temps, based on flow of the system. I have adjustable motors so I have the ability to slow the motors if needed to achieve better results. I can slow the flow rate down form this point but I can go no faster than what I have shown without adding more motors into the loop.
 
Ok so I think that I know how to explain this at this point basically it works out like this I have enough rad space that improvement on temps will be more dependent on the flow of the system than the ability of the rads to remove the heat I have enough rad space to remove twice the heat generated on each loop. So that is the reason for the stress on the flow of the system. I think that this is what I am trying to show here. as well that you can have the best products in the world but if you do not have a full understanding of how a water cooling system works it is possible that it will perform far below its potential.