1st GPU on each of my rigs goes dead with "display driver stopped working" message.
The rest of the cards on each rig continue to hash without issue.
This does not/has not happened while mining anything else in the past year, any insight?
Though it's tied to intensity, you should probably look at lowering your thread concurrency. There's a good chance that will result in better gains as you can still run I 20 if you find one all your cards are happy with. I've found lowering intensity is much more detrimental to my hashrate.