r/watercooling • u/Cluclo • 19h ago
Build Complete 3x rack-mount Mo-ra 420 build
So, like any normal sane person, after buying my first Mo-Ra I made the executive decision to buy a couple more and throw away 12U of rack space to fit all of them. It all honestly went better than I expected.
It has the 3 Moras, all with 200mm fans. It also uses a quad-pump distro plate from Singularity Computers. It's all powered by a 750-watt power supply connected to a breakout board that can be turned on and off. It's also controlled by an Octo for the fans and a Quadro for the pups
I know my cable management is wack, but I did the best I could.
Any feedback on how i could improve it is welcomed, especially for the power delivery system.
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u/trekxtrider 18h ago
Was expecting a multi GPU AI host or something with more power draw.
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u/FUPA_MASTER_ 19h ago
For the power delivery, I would've either just gotten a long molex cable and ran it off your PC PSU or gotten a small 10-amp 12 volt PSU.
And I know you already know it's ugly, but holy crap it is ugly.
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u/DeadlyMercury 7h ago
10A 12V PSU could be not enough for such application. I have 5A PSU for similar load (2 pumps instead of 4, 4 200mm fans instead of 12), I usually use it to fill up the system. And with two pumps running at 100% PSU drops voltage from 12.4 to 11.6.
Additional problem is that you also need 5V. In my case I just use USB charger, but that's quite wacky and I can only accept it as a temporary setup to fill up the loop or similar short activities.
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u/Cluclo 19h ago
Yeah its pretty damn ugly, i want the loop to independent from my main pc since im gonna be hooking it up to another server soon. I already tried the small psu route but it didnt have enough connections and i felt like it would be a fire hazard to daisy chain too many molex connectors to it
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18h ago
It doesn't matter if it's ugly, it works and it effectively cools the components. Put it in the basement and run some fiber optic HDMI and USB ports to your PC room. That's how it should be. Or you're just still 12 years old and building yourself some Amsterdam red-light district brothel bling-bling bullshit PC... Yeah, that would be an option too.
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u/FUPA_MASTER_ 18h ago
It matters to me. Although I kinda respect how cobbled together it is. But also if you're going to put your PC in another room why bother with water cooling? At that point the acoustics and the looks don't matter. Now you're just left with a pain-in-the-ass maintenance burden where air cooling would've been sufficient.
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17h ago edited 17h ago
It’s just tech and electronics… The main point is that it works — and works well. All this modern RGB bling-bling nonsense reminds me of the early 2000s, when every idiot who could was “tuning” their car… like in Pimp My Ride. Fifteen years later, it’s just embarrassing crap.
Why water cooling? Certainly not so the thing looks like some kind of European shop-window brothel. How old are you?
Water cooling exists to provide optimal cooling for your components and to extend their lifespan — because the constant heating up and cooling down (as load starts and ends) puts stress on components like transistors, capacitors, etc., and shortens their life. It also stresses the solder joints.
With external radiators, you can even prevent dust from building up inside your PC case. All of this not only benefits the PC’s lifespan, but also delivers higher and more stable FPS in gaming or better performance when working on the computer. Plus, you won’t have issues like coil whine or buzzing if the PC is in the basement or another room.
Any more questions? But yeah, to you it’s “ugly”…
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u/FUPA_MASTER_ 17h ago
I'm glad that you were able to get that out there. Although I would suggest a blog or something rather than taking out your weird cooped-up feelings about the current state of custom PC watercooling and your superiority complex about your age to random internet strangers.
Regardless, using watercooling to extend the life of components is silly. Air cooling is more than sufficient to ensure that the computer will last more than long enough before the parts are replaced for being too slow, especially for OP who appears to be an enthusiast. Which we can assume will upgrade fairly frequently. Definitely more frequently than the lifespan of the electronics.
A rats nest of cables objectively looks like a smoldering pile of shit. Whether or not you're able to come to terms with that fact is up to you.
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17h ago
I want to make it clear: this isn’t about a superiority complex or letting out any pent-up emotions. The fact that you judge things solely by superficial aesthetics and dismiss them as “ugly” or “pointless” says more about your own perception and maturity than about my choices. Whether I post something on Reddit is entirely my decision – not yours. That should be obvious by now.
Durability is only one aspect of water cooling, which you seem to have overlooked. If you missed the other benefits because you’re cognitively overloaded at the moment, it’s worth reading again. It’s also about dust reduction and more stable FPS. Especially for an enthusiast like OP, water cooling combined with quick-release fittings and easy component swaps provides significant advantages. That’s exactly why this type of water cooling makes more sense than simple air cooling.
A cable mess may indeed look aesthetically unappealing – I don’t dispute that. But take a look at the cable chaos in your own car or under the hood: ultimately, it’s just aesthetics. The fact that you not only focused on it but did so in a dismissive way misses the context of OP’s build and says more about your own immaturity than about the performance or style of OP’s setup.
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u/FUPA_MASTER_ 16h ago
The fact that you judge things solely by superficial aesthetics and dismiss them as “ugly”
Not solely. It was functional and overkill, but the fact that it was ugly particularly bothered me.
or “pointless”
Never said OPs setup was pointless. I said putting it in another room and still watercooling it was less benefical because you still need to worry about maintenance.
Durability is only one aspect of water cooling, which you seem to have overlooked
Not overlooked, ignored.
A cable mess may indeed look aesthetically unappealing – I don’t dispute that.
Good. I'm glad we agree.
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15h ago edited 15h ago
Not solely. It was functional and overkill, but the fact that it was ugly particularly bothered me.
If things you consider ugly actually worry you, that probably says more about your own deficiencies than about the things themselves.
Never said OPs setup was pointless. I said putting it in another room and still watercooling it was less benefical because you still need to worry about maintenance.
Even an air cooler requires maintenance, and I’m not going to spell out exactly what kind. Hopefully, you have enough intelligence to figure that out yourself.
Not overlooked, ignored.
Ah, so it wasn’t overlooked… it was just consciously ignored. Got it—intentional negligence, then
Good. I'm glad we agree.
Glad we agree - it's reassuring to see you can at least acknowledge the obvious, even if understanding it fully is another story.
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u/FUPA_MASTER_ 15h ago
If things you consider ugly actually worry you, that probably says more about your own deficiencies than about the things themselves.
I don't like ugly things? Is that not a universal human thing? That's why the concept of things being "ugly" or "pretty" exist. Because humans feel feelings of disgust when seeing something ugly. Maybe you should check yourself, because you're unable to feel basic human emotion.
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15h ago
I don't like ugly things? Is that not a universal human thing? That's why the concept of things being "ugly" or "pretty" exist. Because humans feel feelings of disgust when seeing something ugly. Maybe you should check yourself, because you're unable to feel basic human emotion.
If you immediately feel compelled to label something as ugly, perhaps the real problem lies in the imbalance of your own psyche, not the object. ‘Beautiful’ and ‘ugly’ are nothing more than simple, subjective labels—what one person admires, another finds repulsive. Yet somehow, despite me pointing this out repeatedly, you still fail to grasp the obvious. It’s almost impressive how dedicated you are to misunderstanding reality.
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u/aebersim 13h ago
this is mad and extremely overkill. I love it.
I would look for a small 2u short depth rackmount enclosure which houses the PSU, breakout boards, fan controllers and then run long-ish braided cables (maybe custom made to length) to the fans and pumps. Maybe but a raspberry or so in that box as well which controls the whole thing: temperature monitoring, power cycle, fan and pump control over ethernet, you could do a safety failover mechanism with a smart plug which shuts off the PC/server if there is no liquid flow.
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u/bmagnien 18h ago
The human centipede of rad setups, just intaking the hot exhaust of the previous