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Will this loop cool both cards?

post #1 of 8
Thread Starter 
Im using 2 7990's for my up and coming s5 build and wanted to see if this config will cool both cards. Loop goes out of the pump > to card 1, thru the crystal link then to card 2 then through the crystal link and then out of card 1and out to the res. Sooooo is this a safe loop to cool both cards?
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post #2 of 8
I run a pair of OC'd GTX 660 TI SC which are WC....during stress tests, the water comming out of my rads only goes up 1C before going back to them.....you can have the cards cooled one after the other, if you have good flow the water will be like 0.5 or 1c warmer at the 2nd card.

Although note, this is just the GPU cores, as I do not have whole card water blocks....not cooling the VRM or mem with this setup.
post #3 of 8
Thread Starter 
I just wanna make sure that the tentative setup will go entirely thru both of the blocks and not just thru the inlets and outlets
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post #4 of 8
What config?
Which rads, fans pump?

Some examples here.
http://www.overclock.net/t/1230466/how-do-bitspower-crystal-links-work
Edited by Sp33d Junki3 - 9/12/13 at 8:57pm
    
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post #5 of 8
You're going to need a pump, radiator, reservoir and tubing. Oh, and the rest of a computer or you'll just be dumping water through a crystal link.
Edited by Trogdor - 9/12/13 at 9:03pm
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post #6 of 8
Thread Starter 
lol I'm all set on equipment. What I am looking to see is if the flow pattern Im choosing will cool both of the gpu blocks completely.I am concerned that this setup will only push the h20 thru the inlets and outlets given that Im not using the traditional sli loop.
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post #7 of 8
You'll have better luck with a traditional setup. Function > Form.
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post #8 of 8
It seems like you are trying to run them in parallel. This is not necessary or beneficial if those are the only 2 blocks in the loop. Run them in series. If you had a CPU block and you wanted to guarantee a minimal loss in flow rate to the CPU block then running the GPU blocks in parallel would reduce the restriction they created in the loop by half but also reduce the flow rates they see themselves by half all while the CPU only has a reduced flow rate equal to if you only had a single GPU block. This is beneficial if you don't have enough pumping power. It will result in higher temps in the GPU blocks.

If you are running the GPUs in a loop with a CPU (like you should if you have a CPU block) and your pump is big enough then there is no reason to run parallel. If you have a single smaller pump then parallel may be necessary to keep the jet style CPU block performing optimally.
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