https://www.igorslab.de/en/adapter-of-the-gray-analyzed-nvidias-brand-hot-12vhpwr-adapter-with-built-in-breakpoint/

The adapter fully analyzed by Igor. You can stop now all speculations.

Edit: Nvidia is briefing board partners now: https://www.igorslab.de/en/adapter-gate-nvidia-briefs-today-early-all-board-partners-and-makes-damage-an-absolute-chief-issue/