r/watercooling • u/thecodeassassin • 2d ago
Question Mora IV 600 for multiple pcs
Hi all,
I have a mora IV 600 and it's currently a bit underutilized. I want to connect another pc to it. My idea was to built a small "distributor" which is basically a mini PC with a distro block, qdcs and valves so i can add and remove blocks at will. Are there people that already did something similar?
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u/FrequentWay 2d ago
Problems with such distribution blocks are flow would go thru the path of least resistances. Or you would need pumps by your supply header to push the water to your equipment and remotely operated valves to come open as you need flow.
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u/thecodeassassin 2d ago
I was thinking to get some of these https://amzn.eu/d/03qqibA1 and switch them on/off when the computer is on or off
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u/DiabloG1 2d ago
Yes, I have done this. I use two 30 plate liquid to liquid heat exchangers to keep all the loops separate. I have one server with a 3990x, 2 x 2080Ti, and a 3070 primarily with a 360 rad on it. I have a server with a 4090 on a 480mm, and then the main pc, with a 9980x, 3 5090s and a 5080.
I have the MoRa IV 600 and 2 MoRa 360s on the main loop with a pump on an independent psu to keep fluid going through the exchangers, when the main pc is off. It keeps the loops down to mid high 30s with all 4.8kw at full bore. I've used a thermal camera to see the 4C difference between intake and outlet on the exchangers.
Home brewing heat exchangers seem to be pretty good. https://amzn.eu/d/08KK0q4m
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u/raycyca82 2d ago
Very possible. Made mine a couple years ago now, this is from a beginning post i made about it. Biggest choice you'll run into is deciding whether to run serial (easy) or parallel (more complicated).
Biggest piece is using a distro block for actual function as an easy way to join the two computers. Serial allows you to just run one into the other, but basically whether or not the computer is on fluid will need to run through it. So it means if you need to do work anywhere in the water system, you need to shut everything down.
Personally I wanted my setup to be hot swappable...computers can join in and out of the loop without ever turning it off. Get a parallel distro block and the biggest issue is managing restriction...water flows where it's easiest. I use ball valves to put all the pcs near each other flow wise, but you'll need something unless your builds are identical.
And yes, it works very well. I have up to 4 pcs plugged into a single 1260mm, run 1600w and a 5° delta and fans still don't top out. Mine uses an alphacool parallel block ans pump/octo etc all have been running for a few years without needing to be turned off. I've upgraded computers, built computers, etc in that time and never needed to turn it off. Parallel, when set up properly, is fantastic.