If you mean NVIDIA’s official tools (e.g., NVIDIA Diagnostics, NVIDIA System Management, or OEM-specific modular diagnostic packages), download them from NVIDIA’s official site or your PC/laptop OEM support page:
If your NVIDIA GPU came inside a Dell Precision, HP Z-series, or Lenovo ThinkStation: download nvidia modular diagnostic software
: As leaked internal software, downloading MODS from unofficial sources carries a high risk of malware. These downloads are not vetted by NVIDIA. If you mean NVIDIA’s official tools (e
: The system is booted from the USB drive. Many versions are pre-configured to automatically run a basic MATS test upon booting and save the results to the drive. Critical Risks and Cautions NVIDIA System Management