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The “million-dollar PC” isn’t just powerful—it’s practically a space heater. With 9 servers pushing 7-8kW of heat, the LTT server room needed a serious cooling upgrade. The team went from cardboard ducts and salvaged towers to crafting a custom “water door” using old radiators, barbs, and a whole lot of trial and error. Will it leak? Will it work? Let’s find out.
HDPlex 500W GaN Power Supply:
Noctua industrialPPC 3000RPM Fans:
Noctua Home Fan Hub:
Wago Lever Nuts:
Shark Bite 1 Inch Pex Fittings:
¾ NPT Barb Fittings:
¾ NPT Sweat Fittings:
¾ NPT Swivel Barb Fittings:
Wilo Star Stainless Steel Pumps:
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CHAPTERS
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0:00 – Intro
2:17 – Sponsor
2:36 – Upgrading the pump
4:34 – Radiator disassembly & fittings frustration
6:00 – HVAC store rescue & soldering chaos
8:00 – Testing for leaks
10:02 – Plumbing layout planning
12:32 – Water door construction begins and leak fixes
15:52 – Mounting the water door
17:47 – Filling the system & first test
20:17 – Thermal performance results
23:20 – Heat-soaked thermals
25:52 – Sponsor
26:43 – Credits
