We met with NVIDIA's thermal engineering team to cut an RTX 4090 Founders Edition cooler (not GPU or PCB) in half with a water jet. This was for science, as it allows us to see inside the vapor chamber, the heatpipes, and the cooling structure to understand how coolers are internally formed. We'll have a review of the RTX 4090 Founders Edition soon, but for now, we're starting with a cross-section and engineering-heavy video to learn about cooler design.