yes, i have it on exit 3. i'll look into 3rd party software. maybe that'll help the gpu's restart without having to restart machine. probably would be faster. currently the time from error to restarting machine to mining again is about 4-5 minutes. instant-restart would save 1 min most of the time, but sometimes it goes longer. got 14 cards on win10
If you were on Linux, I could point you to something.
I haven't done windows in over 12 years, so unfortunately, I would be of no help.
Here is a thought. Run each card in separate miner instance. Make a log entry when a specific instance resets for you to review when you return to the machine. That should at least point you to the problem GPU.
Then lower overclock on that one or change out the riser and see if that fixes it.
Hope you find your solution.