A moment under pressure The chamber ticks past 55 °C. Two flagship GPUs are chewing through a power-fault test while a validation lead, Lena, watches a thermal camera bloom orange over a tiny rectangle of plastic. At ~600 W on a single 16-pin plug (about 50 A at 12 V), even a whisper of extra resistance becomes heat. The smell arrives first—sweet, acrid, unmistakable. On-screen, a pixelated flare crawls from the corner of a 12VHPWR/12V-2×6 receptacle where the plug isn’t fully home. I²R wins. “Kill it,” Lena says, already calculating: one adapter, one $1,500-class board, a week of schedule slip,…