The Fermi microarchitecture was first released 8 years ago, and was used in the 400, 500, 600 series on desktop and mobile, as well as the 700 and 800 series mobile cards. Nvidia has now stopped support for these GPUs, with a full list of affected cards in the article.
https://www.notebookcheck.net/Nvidia-drops-performance-optimisation-bug-fix-and-new-feature-support-for-Fermi-series-GPUs.296614.0.html