Custom Watercooling for Less Than an AIO

Linus Tech Tips
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About this episode The video demonstrates that affordable Chinese custom water cooling kits (specifically Bixie) can provide bett… AI summary

The video demonstrates that affordable Chinese custom water cooling kits (specifically Bixie) can provide better value and performance than premium all-in-one coolers, costing less than $230 for a full hardline build. While the installation process involves significant complexity—particularly with thermal pad placement and tubing bending—the final result offers superior thermal performance, quieter operation, and upgradability for future hardware cycles.

Key takeaways 5
  • Cost Comparison: A full custom water cooling kit including CPU and GPU blocks, radiator, pump/reservoir, and tubing costs approximately $230 (plus shipping), which is less than the price of a top-tier all-in-one (AIO) cooler.
  • Performance Benefits: Custom loops provide rock-solid clock speeds by preventing thermal throttling, leading to fewer stutters in gaming. The GPU block allows for direct die contact, resulting in sub-50°C temperatures under load.
  • Upgradability: The AM5 socket is supported by AMD until 2029, meaning the CPU block can be retained for future upgrades. Only the GPU block typically needs replacement when upgrading the graphics card.
  • Difficulty Warning: Despite being marketed as a 'beginner kit,' the process involves complex steps like cutting thermal pads to fit specific components, bending hardline tubing with a heat gun, and dealing with potential manufacturing tolerances (e.g., insufficient clearance on reservoir fittings).
  • Thermal Interface Strategy: For CPU dies without an integrated heat spreader (IHS), spreading thermal paste is recommended over a single dot to ensure full coverage, whereas GPU VRAM requires precisely cut thermal pads based on physical inspection of the block.
Notable quotes 4 AI-generated: wording and quote attribution may be wrong. Use the play link to verify.
  • “You can never uncut. That looks pretty darn good.”
    ▶ 16:34 Advice on cutting hardline tubing to length, emphasizing that mistakes are irreversible once cut.
  • “Rock solid temperatures? That results in rock solid clock speeds, which means you're much less likely to get random disruptions or stutters while you're gaming.”
    Explaining the practical gaming benefit of stable thermal performance provided by custom water cooling.
  • “Not very beginner friendly. But you still can't fault the result.”
    ▶ 20:19 Acknowledging the difficulty of dealing with poor clearance on the Bixie reservoir fittings while praising the final aesthetic and thermal outcome.
  • “In many jurisdictions, those [warranty void stickers] have been found to be uninforceable. So, if for whatever reason something does go wrong with your GPU that wasn't caused by your modification, it shouldn't be a huge issue to seek a warranty replacement.”
    ▶ 4:51 Legal context regarding opening GPU hardware for water cooling modifications.

Chapters & Sections (12)

0:00 Custom Water Cooling Cost and GPU Prep chapter 3
1:57 Custom Cooling Kit Value and Tools
3:21 System Specs and GPU Disassembly Tips
5:05 Applying Thermal Pads to GPU Block
7:28 Installing GPU and CPU Water Blocks chapter 2
9:16 Installing CPU and GPU Water Blocks
11:09 Reservoir Pump Mounting and Fan Compatibility
12:43 Installing Custom Watercooling Tubing and Fittings chapter 4
16:19 Measuring and Bending Custom Tubing
18:53 Troubleshooting Watercooling Leaks
20:19 Custom Watercooling Performance and Controls
22:09 Performance and Thermals Review

Transcript

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