Thermal design supporting Gen 12 hardware: cool, efficient and reliable

What this post added

This post details the thermal design of Cloudflare's Gen 12 hardware, focusing on ensuring reliability, efficiency, and optimal performance. It covers the importance of Thermal Design Power (TDP), the standardization of thermal specifications including ambient conditions and fan failure support, and the strategic system layout for improved airflow. Specific optimizations include the Extended Volume Air Cooled (EVAC) heatsink and the use of larger, more efficient fans. The post also discusses hardware flexibility for incorporating accelerators like GPUs and the importance of rack-integrated thermal testing.