I see customized PC builds move by my newsfeed on a regular basis, and my normal response is “meh”. One I have been keeping track of for some time now, although, has lastly reached its conclusion, and it is such an excessive construct that I am in absolute awe of its creation.
The unfilled radiator itself was initially estimated to weigh 50 kg, or as Billet Labs places it, “catastrophically heavy”. As it is a forged iron unit, it is also liable to inside rust, which proved to be a thorn in our intrepid builder’s facet all through the undertaking.
The purpose initially sounds remarkably easy—construct a high-spec gaming PC round an object designed to radiate warmth away from its parts, in a method that it may be used daily. Nevertheless, the sheer quantity of additional effort right here is downright herculean.
The three-month undertaking concerned 3D scanning of the underside of the radiator for part placement, which then led to the creation of a 3D-printed tray to carry the internals, integrating the system throughout the backside loops of the radiator chassis itself. The parts picked included a Ryzen 7 9800X3D, an RTX 5080, and 32 GB of RAM. Luxurious.
Nevertheless, when it got here to the water cooling loop, issues grew to become much more difficult. Billet Labs fabricated a sequence of copper pipes with a built-in filter to hook as much as the radiator’s internals, in an effort to forestall inside particles from messing up the pump.
The radiator’s present bleed port was used for air elimination functions, though a customized T-piece system was created to permit the filling of the radiator and PC cooling system with water individually. This implies the system itself may be faraway from the loop with out draining the radiator itself.
Get away the braising torch, I suppose. The plumbing itself seems to be like some form of steampunk nightmare, however seems to be remarkably effectively designed as Billet Labs breaks down its inside workings, full with two strain gauges mounted to the entrance facet.
Solid-iron radiator water-cooled gaming PC construct 9800X3D/5080/32GB – 99kg from r/PcBuild
As for the ability button? Why, it is an vintage brass gear lever of unknown origin, in fact. It is all in regards to the particulars, this undertaking.
A serious hiccup occurred, nevertheless, when filling the hybrid cooling system with 18 litres (!) of water after cleansing. The primary try resulted in an eight-hour slog involving the chasing down of varied air bubble issues. This, nevertheless, was merely the start of Billet Lab’s points.
Past the truth that the PC now weighed 99 kg (a fast little bit of maths revealed that the preliminary radiator weighed roughly 80 kg, not the 50 kg initially thought), one of many followers caught on the shroud at startup. Then the pump started to click on, as a result of it was stuffed with copper particles. A brand new pump (full with extra noises) prompt the system was stuffed with air, which meant Billet Labs needed to push the crammed radiator round his dwelling to take away potential bubbles. Which did not work, so fittings have been re-braised to remove leaks.
Then the CPU temperature spiked, which was attributable to the filters clogging up with radiator particles. Which meant the addition of eight meters of hose hooked up to the construct for draining and flushing functions.
(Very) lengthy story quick, after a lot draining and cleansing, the PC now runs, albeit with fairly a loud pump due to the odd air bubble or spot of still-present particles. Some stress testing reveals decently low peak CPU temperatures of 68 °C in Cyberpunk 2077 with the followers off and the coolant temperature at an equilibrium.
But it surely’s not in regards to the finish efficiency, because the result’s a gaming PC with a really distinctive cooling setup and aesthetic. In any case of Billet Labs’ troubles, I doubt many will search to repeat the design—however I am glad there’s somebody on the market nonetheless pushing customized PC builds to new and unique extremes.

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