In my previous deep dives, I learned how a Time Domain Reflectometer (TDR) acts like ‘radar’ for cables..sending a pulse and listening for the echo to find solder defects or impedance mismatches. But the NVL72 rack doesn’t run on single wires; it runs on Differential Pairs (Positive and Negative signals working together). My latest training,…

In the world of interconnects, we often treat connectors as binary: they are either ‘Mated’ or ‘Unmated.’ If the latch clicks, we assume the job is done. But as I continue building my Full Stack Interconnect Profile, I’ve learned that for high-speed systems like the NVL72, ‘Mated’ is a spectrum, not a switch. In my…

By combining my IPC knowledge (physical fabrication) with Infiniband/MLX (logical/protocol), I have both ends of the spectrum covered. The missing link in the middle is the physics layer. Through next couple of trainings, I will be learning the physics of the specific cables an QE will be managing. Twinaxial cable is the superior choice for…

As I continue my deep dive into the world of data center operations, I’ve started noticing how the foundational systems like power, cooling, and humidity control quietly work together to keep everything stable, safe, and efficient. In this blog, I’m pulling together four key chapters from the DCCA course: Fundamentals of Cooling I, Fundamentals of…