Indeed. Having personally experienced power supply issues a few times (either due to malfunction or the mentioned problem of super-hungry GPU) and the resulting

Indeed. Having personally experienced power supply issues a few times (either due to malfunction or the mentioned problem of super-hungry GPU) and the resulting random crashes, I would have been greatly helped by this kind of detection in the OS. It seems that in the PC world there is very little functionality in place to detect, isolate, and nail down hardware issues. Or if it exist somewhere deep in the firmware, at least no standardized way to access it. On the positive side, I was recently very surprised when Linux started to give errors about a certain CPU core after programs started hanging. Somehow one of my cores had failed without crashing the OS(!). After disabling that core in the BIOS with the next reboot the issues went away. So there is some level of hardware problem detection and robustness in modern OSes, but maybe not enough.