AMD cards i have 6800XT and 6600XT. Should be something for you to review in code or do you have any command to put in config ?
As long as you don't get an exit a few minutes after the warning, you should be fine. I think the internal watchdog think the cards time out because of the long job time of the ZIL pow.
We have to adjust a bit and test ETH+ZIL more.