I can feel how one hash-chain is cold while the other one is working fine. When I login to the GUI I can only see one hasing board with 0s.
This has happened a few times before. The only way to fix it is to restart the PSU.

I´ve been gone for 2 weeks and when I checked the hashrate on my pool I could see that some hasing boards have stopped working, and one even powered back on??

http://i.imgur.com/oMvDi4h.png

The PSU I´m using is  Corsair RM-1000W (one PSU -> 2 miners)
This has happened with the stock firmware and also with the latest firmware.

I´m running all my S3+ B11 overclocked... maybe that is the problem?