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post #31 of 39
Quote:
Originally Posted by Ivan TSI View Post

^ This but if you can get 2 rads as mentioned earlier, a 240mm rad + 120mm rad will do the trick and remember to couple the gpu's in paralel config like this:
.............................................................GPU#1
240mmRAD ---> CPU ---> 120mmRAD --->< ............>240mm RAD
.............................................................GPU#2
that way the hot water that comes from the cpu is cooled a bit before going to the gpu's meaning better gpu temp's.
Also you can get thicker rad so they will cool a bit better or check XSPC EX rads, and for last but not least the fans, make sure to get fans with high static pressure, those are better for rads, Gentle Typhoons have a very good sound/performance ratio .
Unless his flow rate is just terrible, the loop order makes practically no difference. Going pump > rad > cpu > gpu > gpu would mean a 1-2C difference in the water temperature as it hits the third block, there's no need to go out of your way to get a radiator between the cpu and gpu. I believe the technical spec is it takes 250w to raise water moving 1 gpm by 1C, meaning the cpu isn't going to increase the water temperature significantly. Even if you had 4x 470's, and went pump > rad > gpu > gpu > gpu > gpu > cpu, the cpu would only be seeing water ~4C warmer than if it were the first component, and that's pretty much a worst-case scenario with all gpu's at full load. In that case I'd probably throw a radiator between the gpu's and cpu, but that setup would need more than one radiator anyway.

A single 360mm radiator will be just fine for your cpu and 2x 470's. I'd look into the RX360 kit and then just pick up a pair of gpu blocks and barbs, though you may want to swap out the tubing as I've heard it's pretty bad. I'd avoid using dye, they can end up clogging up blocks and generally require more maintenance than just plain distilled water, plus distilled water is pretty much the best coolant you can use, temperature-wise. Primochill's tubing is pretty popular here, and they do make it in blue, make some rough measurements and order a couple feet extra in case of mistakes but that size will work with the RX360 kit just fine. All you'd need to add then is 2x gpu blocks, and 4x 7/16" barbs & clamps (or 6x barbs/clamps if you want to run the gpu's in parallel).
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post #32 of 39
Thread Starter 
GPU's in parallel? I'm a bit lost in that? What adapter will be needed for that?
post #33 of 39
You can run gpu's in parallel without any fancy adapter. Here's a picture of a parallel setup:

cnt-vd_parallel.gif

A series setup is like this:

cnt-vd_serial.gif

Parallel means both blocks will get the same temperature water, and increases overall flow at the cost of lower flow through each individual gpu block. Series means the second card will get trivially warmer water, and the total loop has a slightly lower flow rate, but each gpu block gets more flow than in parallel. GPU blocks generally aren't very flow-sensitive, and the temperature difference is trivial either way, so there's no a huge difference IMO. You can search the forums for tons of threads talking up one way or the other.
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post #34 of 39
Thread Starter 
Somehow that photo shows a broken link on my screen...Is it just me and chrome having trouble? And I see your point.
post #35 of 39
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post #36 of 39
Thread Starter 
That link sums it up very nicely for me, Thanks for the extra linK!
post #37 of 39
Are you sure that's the case Bakageta for water temp? My thought process hasn't been about the watts going into the water but more the watts coming out at the rad. Under that assumption I would think that when the water reaches temp you'd have a meaningful drop for the water that's coming out of that rad and heading into the GPUs.
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post #38 of 39
Quote:
Originally Posted by Border201 View Post

Are you sure that's the case Bakageta for water temp? My thought process hasn't been about the watts going into the water but more the watts coming out at the rad. Under that assumption I would think that when the water reaches temp you'd have a meaningful drop for the water that's coming out of that rad and heading into the GPUs.

Generally speaking, the rise and fall per component is only about 1C. A very large radiator will cool more, and his multiple GPUs will essentially add 1C each to the water temperature.
 
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post #39 of 39
Los hog sorted me out in PMs. I get what's being said now. THanks Angry thumb.gif
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