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the longest watercooling loop ever?

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post #1 of 20 (permalink) Old 03-22-2019, 06:57 AM - Thread Starter
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the longest watercooling loop ever?

a few years ago i built a massive external watercooler to try and achieve a very quiet 3d workstation.

consists of a pair of mora3 radiators in parallel, a reservoir, and a pair of d5 pumps in series. fans are 6x silverstone 180mm. all internal tubing and interconnects are 1/2 inch.

this setup is connected to my workstation via a 3/8" umbilical 3m long with quick disconnects on the end.

the workstation has a 3930k and 2x titan x all in series, on a 3/8" set of fittings and tubes.

the reason for the fatter tubes in the cooler and the thinner umbilical and workstation fittings are:

the cooler is future proofed and was designed to cool whatever hardware i could throw at it, now and future.

the umbilical and pc use 3/8" due to flexibility of umbilical and space in workstation.


it has been working beautifully for years..

even with both gpus and the cpu (at 4.6 ghz) rendering flat out together, the gpus stay around 33 degrees and the cpu sits at around 46 degrees.

this is with cooler fans running at just above stall speed, and the twin pumps both on setting 1 of 5


HOWEVER:

now its time to get a new beastly workstation.

ideally i wish to continue cooling the old one, as its still useful for rendering.

new workstation will probably be

threadripper 3 (64 core if possible, will find out soon enough

4x Titan RTX gpu, or Ampere gpu of similar spec if available (my job involves tons of gpu rendering. the extra gpu ram is very useful)

i would also like to cool vrms on mobo.

i dont plan on doing too much oc on new workstation.. maybe some mild stuff.




so, my external cooler will be getting put to the test. i guess ill need to crank up the pumps!


my current plan is to either just run a massive serial loop, with (in total) 6x gpus and 2x cpus and vrm cooler all in series with dual pumps, and only the radiators in parallel ( iirc, this was on advice of manufacturer who showed marginally improved performance with slow flow rate in those rads.)


or, run the two workstations in parallel with each other, and use a valve to balance flowrate. in that case it would be 2x gpu and 1x cpu on one side, and 4x gpu, 1xcpu and 1xvrm cooler on the other.

the second option makes a touch more sense, since the 1/2" tubing in the cooler might match quite well with a pair of 3/8" loops.


any suggestions?

thx all...
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post #2 of 20 (permalink) Old 03-22-2019, 02:05 PM
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I gotta mo-ra3 420 for my loop.I do not have any advice, but Lets see some pics ! I'll be very interested in seeing your new setup when everything is done, sounds very interesting.

Is your workstation at home ? What do you do to need all that powa ?
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post #3 of 20 (permalink) Old 03-22-2019, 08:50 PM
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If you are really looking to build a beastly machine, I would look for a now defunct Caselabs TX10 case.






You can transfer the old build and work on the other side for the new build.
And if you happen to find one grab it right away.

Last edited by lovan6; 03-22-2019 at 09:06 PM.
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post #4 of 20 (permalink) Old 03-22-2019, 10:15 PM
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I wouldn't want them on the same loop...in the same case perhaps but not on the same loop. The problem with doing a loop like that (IMO) especially if you need them for work is that if you have any issues both systems are down. Also in the off chance you have any corrosion or contamination you'll spread it through the entire system. I just don't see any logical reason to connect them unless you're using a more industrial pump, something beyond a D5.
If it were me I'd probably have to build my own case or at least pedestal to house the big square 9x 120mm rads I'd want to use but that's your call.

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post #5 of 20 (permalink) Old 03-23-2019, 03:46 AM - Thread Starter
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Here is the watercooler in its natural habitat.. Sorry for the mess. Yeah its a home office. I do 3d images and animation, for advertising and architecture.. A mix of cpu and gpu based rendering using vray.

Regarding doing seperate coolers, id not have built such a mahoosive cooler if i didnt plan on adding more than one machine. Its got dual pumps, for redundancy and extra pressure, specifically to handle the job. And im not going to spend all that cash again. It was quite eye wateringly expensive to build. It wa originally planned to handle a small renderfarm without making a noise. Theoretically the dual rads can handle approaching 4kw. Id imagine it would be noisy at that level tho.

A good point re. Problems affecting both machines, however a) ive already got a seperate backup machine and b) its been flawless for years and is still clean inside.

Regarding the case, ive built a dual motherboard workstation before, and it was annoying, sharing a psu it was fiddly to start without problems. Im also quite happy to leave old machine in black lian li case untouched.

Im actually going completely the opposite direction. Planning a super dense cerberus x build for the threadripper and 4x titan rtx. With external cooling it a fits quite nicely (ive made a 3d model already) and when i go away on holiday i can unplug it from umbilical and leave it in a safe place. Id be crapping it leaving such an expensive machine home alone.

Ps. Try to ignore the wonky fan cutouts, i trusted a local carpenter to do that panel, and he did a lame job. Seems he hadnt heard of a router with circle jig.

Thinking about it, i guess i could re-plumb the cooler to have one rad and one pump for each machine, however, normally id just be using one machine, so wasting half the cooling power.
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Last edited by ryan92084; 03-27-2019 at 06:38 AM.
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post #6 of 20 (permalink) Old 03-26-2019, 10:25 PM
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post #7 of 20 (permalink) Old 03-27-2019, 06:36 AM
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From the thread title I was expecting an old geothermal setup : D

Ideally I think if I was only ever using one system at a time I'd probably just do Y junction from the rad box to each system and give each system its own pump(s). Maybe throw a ball valve on one of the 4 lines to cut off/minimize flow to one system if you find that the rads aren't getting enough flow but I suspect the restriction of the blocks on the non running pc would do most of the balancing.

I'm not sure how feasible that is with the current setup with the pumps being part of the box.

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post #8 of 20 (permalink) Old 03-27-2019, 06:56 AM
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Quote: Originally Posted by lovan6 View Post
If you are really looking to build a beastly machine, I would look for a now defunct Caselabs TX10 case.



https://www.youtube.com/watch?v=3a7kKKPs6J8











You can transfer the old build and work on the other side for the new build.

And if you happen to find one grab it right away.


My biggest regret is not ordering one of those when I had a chance

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post #9 of 20 (permalink) Old 03-27-2019, 07:00 AM
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well I have a massive system as well and I to use a parallel setup on my hardware and the radiators to keep the flow rate high.
here is a small scale version test setup.
https://www.overclock.net/forum/61-w...el-9-6lpm.html
here is my large scale version of that same build structure.
https://www.overclock.net/forum/62-p...c-cooling.html
maybe this will give you some ideas for your own build.

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post #10 of 20 (permalink) Old 03-27-2019, 07:23 AM
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sounds like a job for two dual pump loops to me. Easier to maintain.

make sure you invest in Quick Disconnects.
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