I haven't got a 30 series card so haven't experienced any problems myself. But it has been reported that some cards are more vulnerable to crashes or instabilities.
https://www.igorslab.de/en/what-rea...tabilities-of-the-force-rtx-3080-andrtx-3090/
https://www.youtube.com/watch?v=x6bUUEEe-X8
Apparently, the spec allows for cheaper POSCAPs or more expensive MLCCs. There appears to be a correlation between likelihood of problems and the choice of components. If you intend to preorder a 30 series card in the near future, it would be a good to watch a photo or teardown video of the PCB and check the power delivery configuration.
https://www.igorslab.de/en/what-rea...tabilities-of-the-force-rtx-3080-andrtx-3090/
https://www.youtube.com/watch?v=x6bUUEEe-X8
Apparently, the spec allows for cheaper POSCAPs or more expensive MLCCs. There appears to be a correlation between likelihood of problems and the choice of components. If you intend to preorder a 30 series card in the near future, it would be a good to watch a photo or teardown video of the PCB and check the power delivery configuration.