Heres an alternative for you. Install Hardware Info64 (HWiNFO). Within that tool on the Alerts tab you can trigger a batch file when a sensor exceeds a boundary you define. For instance, I have it set to send me a text message (via BLAT) whenever my GPU temperatures fall below 30c (which means they are not working).
The batch file could also trigger the shutdown /r command.
Really cool is that what I am searching for months.
Thank you a lot.
Maybe is more faster to look at wattage instead temperature.
BTW i write a batch, when temperature is less than 55 degrees it restart miner automatically.
Maybe it is better make 2 alerts.
If a gpu still with low temp the system will restart.