6xR9 380 periodically resets GPU0 speed, and the miner errors appear non-existent cards, with which it can be connected?
I can confirm that bug. Plus i got an issue when all 4 GPU working with 100 % Load according Trixx info but one is 0 hash\s.
Pool sets new share target: 0x000f612a (diff: 4261H)
ZEC: 11/16/16-22:49:05 - New job from zec.suprnova.cc:2142
ZEC - Total Speed: 374.150 H/s, Total Shares: 204, Rejected: 0, Time: 00:30
ZEC: GPU0 102.007 H/s, GPU1 134.362 H/s, GPU2 0.000 H/s, GPU3 137.781 H/s
ZEC: 11/16/16-22:49:13 - SHARE FOUND - (GPU 0)
ZEC: Share accepted (63 ms)!
It happens after some time of mining