One of my 290's Rig starting to hang after every 2 to 3 hours approx
here is what i get
12:07:10:633 cf0 ZEC: Stratum - Failed to connect, retry in 20 sec...
12:07:13:258 f8c Got incorrect temperature 511, ignore
12:07:16:305 f8c Got incorrect temperature 511, ignore
12:07:19:414 f8c Got incorrect temperature 511, ignore
12:07:19:649 f8c Got incorrect temperature 511, ignore
12:07:19:836 f8c GPU0 t=46C fan=70%, GPU1 t=45C fan=70%, GPU2 t=0C fan=0%, GPU3 t=47C fan=0%
12:07:19:852 f8c em hbt: 9297, fm hbt: 79,
12:07:19:867 f8c watchdog - thread 0, hb time 47
12:07:19:867 f8c watchdog - thread 1, hb time 94
12:07:19:914 f8c watchdog - thread 2, hb time -31
12:07:19:914 f8c watchdog - thread 3, hb time 31
12:07:19:930 f8c watchdog - thread 4, hb time 47
12:07:19:945 f8c watchdog - thread 5, hb time 0
12:07:19:977 f8c watchdog - thread 6, hb time 0
12:07:19:992 f8c watchdog - thread 7, hb time -63
12:07:20:008 f8c watchdog - thread 8, hb time -110
12:07:20:024 f8c watchdog - thread 9, hb time -141
12:07:20:055 f8c watchdog - thread 10, hb time -188
12:07:20:070 f8c watchdog - thread 11, hb time -188
12:07:20:086 f8c watchdog - thread 12, hb time 79547
12:07:20:102 f8c WATCHDOG: GPU 3 hangs in OpenCL call, exit
12:07:20:117 f8c watchdog - thread 13, hb time 79719
12:07:20:133 f8c WATCHDOG: GPU 3 hangs in OpenCL call, exit
12:07:20:133 f8c watchdog - thread 14, hb time 79609
12:07:20:133 f8c WATCHDOG: GPU 3 hangs in OpenCL call, exit
12:07:20:149 f8c watchdog - thread 15, hb time 79672
12:07:20:164 f8c WATCHDOG: GPU 3 hangs in OpenCL call, exit
12:07:20:305 f8c Got incorrect temperature 511, ignore
12:07:21:516 f8c Restarting OK, exit...
driver 16.9.2 CM v9.3
Any suggestion please