We Built a CPU Water Cooler!

The video documents Linus Tech Tips attempting to build a CPU water block from scratch, starting with the concept and the simplest possible design. The team explores a basic acrylic water block idea that uses six holes and two G1/4 threads, highlighting how inexpensive materials can still function as a working block. They compare this basic design to a more advanced copper block that includes a metal mid plate for rigidity and multiple features to improve flow and heat transfer, noting the challenge of machining copper and achieving tight tolerances for an effective o-ring seal. The hosts walk through the process of machining, tapping threads, and assembling components, including a live demonstration of threading, sealing, and testing the block for leaks. They perform both a dry fit and a water-fill test to check for leaks, discussing the importance of proper tolerances and the placement of o-rings to prevent leaks in a high-value system. The video ends on a positive note, with the team reporting that the block does not leak after testing and outlining plans for future iterations, such as creating blocks for other hardware and escalating to more complex projects like a network switch. Throughout, they emphasize learning through doing, documenting mistakes, and iterating on designs rather than relying on pre-made parts. The content blends practical machining steps, design reasoning, and playful banter, underscoring the DIY ethos of pushing capabilities while acknowledging the engineering challenges involved in making a reliable water cooling solution. Viewers are invited to follow along for ongoing projects and related sponsorships and community activities. Overall, the video frames a successful initial foray into custom water blocks as a stepping stone toward more ambitious experiments in cooling high-performance hardware.

Topics · DIY · Computer Hardware · Technology Education · Engineering · Machining · DIY Electronics · Science & Technology · Maker Culture