my rig is not stable for these few days.... message that always show " hang, opencl.. ?  GPU1 0.000 Mh/s......, restart many time  



22:23:19:273   11f0   ETH: 08/21/17-22:23:18 - New job from asia1.ethermine.org:14444
22:23:19:289   11f0   target: 0x0000000112e0be82 (diff: 4000MH), epoch 139(2.09GB)
22:23:19:430   11f0   ETH - Total Speed: 43.129 Mh/s, Total Shares: 1, Rejected: 0, Time: 00:02
22:23:19:445   11f0   ETH: GPU0 21.565 Mh/s, GPU1 0.000 Mh/s, GPU2 21.564 Mh/s