Nvidia DGX Spark update cuts idle power by 32% or more — hot-plug detection on ConnectX NIC makes for a more efficient AI workstation

Nvidia's DGX Spark received a software update that enables hot-plug detection on its ConnectX 7 NIC, reducing idle power draw by up to 32.4%. The update significantly improved power efficiency, with idle power dropping from 37W to 22W when the display was disconnected. While not all systems may see the same power reduction, Nvidia is highlighting the Spark's usage in educational institutions for various AI projects. The Spark's low power requirements make it suitable for deployments in remote locations like the South Pole, where power and network bandwidth are limited. Users are encouraged to update their Spark systems for improved efficiency.