just updated first post
What kind of PSU are you using? Are you using all 4 PCIe cables to power it up as well? Is this a new(used) unit to you or did this just start happening?
Also, do you have pools defined on MRR? You need to have a pool defined in the webui there otherwise your miner won't hash through them. I don't know if it would fail over to your third pool, kano.is, because I haven't tried that.
this is one of the last of 20 s5's tested same psu (lepa 1600) and config
so there should be no problem from those things
Pool info seem to be correct, since they read as alive. You could still try different pools but anyways;
Swap one board into a working S5. If it still read dead, then test with the other board to be certain but it sound like it could be possible that both board are dead.