[2018-11-28 23:13:10] Successfully initialized GPU 1: Polaris with 12 CU (PCIe 03:00.0) (CN 4+3)
[2018-11-28 23:13:10] Successfully initialized GPU 2: Polaris with 12 CU (PCIe 06:00.0) (CN 4+3)
[2018-11-28 23:13:10] Successfully initialized GPU 3: Polaris with 8 CU (PCIe 04:00.0) (CN L4+3)
...
[2018-11-28 23:27:38] Stats Uptime: 0 days, 00:14:30
[2018-11-28 23:27:38] GPU 0 [50C, fan 19%] cnv8: 515.7 h/s, avg 519.3 h/s, pool 495.5 h/s a:43 r:0 hw:0
[2018-11-28 23:27:38] GPU 1 [54C, fan 19%] cnv8: 520.5 h/s, avg 517.9 h/s, pool 472.5 h/s a:41 r:0 hw:0
[2018-11-28 23:27:38] GPU 2 [51C, fan 19%] cnv8: 522.9 h/s, avg 518.1 h/s, pool 507.2 h/s a:44 r:0 hw:0
[2018-11-28 23:27:38] GPU 3 [44C, fan 33%] cnv8: 549.7 h/s, avg 548.1 h/s, pool 472.7 h/s a:41 r:0 hw:0
[2018-11-28 23:27:38] Total cnv8: 2.109kh/s, avg 2.103kh/s, pool 1.948kh/s a:169 r:0 hw:0
...
[2018-11-28 23:28:08] Stats Uptime: 0 days, 00:15:00
[2018-11-28 23:28:08] GPU 0 [49C, fan 19%] cnv8: 518.6 h/s, avg 519.5 h/s, pool 490.0 h/s a:44 r:0 hw:0
[2018-11-28 23:28:08] GPU 1 [54C, fan 19%] cnv8: 529.0 h/s, avg 517.7 h/s, pool 467.9 h/s a:42 r:0 hw:0
[2018-11-28 23:28:08] GPU 2 [49C, fan 19%] cnv8: 520.2 h/s, avg 517.3 h/s, pool 512.6 h/s a:46 r:0 hw:0
[2018-11-28 23:28:08] GPU 3 [45C, fan 0%] cnv8: 560.9 h/s, avg 547.9 h/s, pool 456.9 h/s a:41 r:0 hw:0
[2018-11-28 23:28:08] Total cnv8: 2.129kh/s, avg 2.102kh/s, pool 1.927kh/s a:173 r:0 hw:0
...
[2018-11-28 23:28:38] Stats Uptime: 0 days, 00:15:30
[2018-11-28 23:28:38] GPU 0 [50C, fan 19%] cnv8: 518.7 h/s, avg 519.5 h/s, pool 485.0 h/s a:45 r:0 hw:0
[2018-11-28 23:28:38] GPU 1 [53C, fan 19%] cnv8: 841.8 h/s, avg 514.2 h/s, pool 463.5 h/s a:43 r:0 hw:0
[2018-11-28 23:28:38] GPU 2 [49C, fan 19%] cnv8: 839.9 h/s, avg 514.4 h/s, pool 528.3 h/s a:49 r:0 hw:0
[2018-11-28 23:28:38] GPU 3 [46C, fan 33%] cnv8: 941.5 h/s, avg 545.7 h/s, pool 442.2 h/s a:41 r:0 hw:0
[2018-11-28 23:28:38] Total cnv8: 3.142kh/s, avg 2.094kh/s, pool 1.919kh/s a:178 r:0 hw:0
...
[2018-11-29 08:59:08] Stats Uptime: 0 days, 09:46:00
[2018-11-29 08:59:08] GPU 0 [47C, fan 19%] cnv8: 518.1 h/s, avg 520.0 h/s, pool 499.7 h/s a:1757 r:0 hw:0
[2018-11-29 08:59:08] GPU 1 [56C, fan 19%] cnv8: 515.2 h/s, avg 490.7 h/s, pool 477.8 h/s a:1680 r:0 hw:0
[2018-11-29 08:59:08] GPU 2 [48C, fan 19%] cnv8: 835.0 h/s, avg 429.7 h/s, pool 427.2 h/s a:1502 r:0 hw:0
[2018-11-29 08:59:08] GPU 3 [43C, fan 0%] cnv8: 937.9 h/s, avg 458.4 h/s, pool 441.2 h/s a:1551 r:0 hw:0
[2018-11-29 08:59:08] Total cnv8: 2.806kh/s, avg 1.899kh/s, pool 1.846kh/s a:6490 r:0 hw:0
Every time strictly after 15min uptime current hashrate becomes too high on all or almost all gpus (the can be different on other rig start). Avg begin to drop. Reported pool hashrate aim to avg. I've tried to reduce intensity to 3+2, L3+2, reduce overclock to extremely low - 1100/1850 on baffins and 1180/1950 on lexa but problem occures again at same time - 15min after start