I am getting a lot of miner thread hangs.
Then miner restarts only when I press 's'. Otherwise both of my 390 remain idle.
What could be the problem?
Is new 17.1 driver any better?
this has happened to me before, once one of my 390s failed to get recognized, but it worked fine. It could be that you set your undervolt too low, it depends on the manufacturer (i've got one that can OC balls to the wall with a -44mV, the other can't do better than -12mV and needs to go up to match the OC) and make sure crossfire is disabled.