Zynq UltraScale+ ZU19EG MPSoC SOM’s maximum operating junction temperature is 100C with temperature reading tolerance of +/- 3C.
Hence, recommended to shut down and restart @90C junction temperature (but not more than 95C).
For further inquiries, please get in touch with mktg@iwave-global.com
Please find the detailed G35M product information in the below link,