I'm having trouble with temperature 511 error. It happened randomly and miner hang without reboot. Please help!

https://i.imgur.com/qBHeJXc.png

19:06:05:050   1b84   new buf size: 0
19:06:07:752   1af4   GPU 1: got incorrect temperature 511, ignore
19:06:07:843   1af4   GPU 2: got incorrect temperature 511, ignore
19:06:11:470   1af4   GPU 1: got incorrect temperature 511, ignore
19:06:11:562   1af4   GPU 2: got incorrect temperature 511, ignore
19:06:14:926   1b84   got 248 bytes
19:06:14:926   1b84   buf: {"id":0,"jsonrpc":"2.0","result":["0xdcb409175e4740a26434b7089a94ad3e37ce77a55858062583924b2c82cd128f","0xec6e8e0d8056cf9eb61046eaeb754b8e71f48e10a86c61f4d287b4ac5244653f","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x4adfaa"]}

19:06:14:926   1b84   parse packet: 247
19:06:14:926   1b84   ETH: job changed
19:06:14:926   1b84   new buf size: 0
19:06:14:926   1b84   ETH: 01/14/18-19:06:14 - New job from asia1.ethermine.org:4444
19:06:14:926   1b84   target: 0x0000000112e0be82 (diff: 4000MH), epoch 163(2.27GB)
19:06:14:926   1b84   ETH - Total Speed: 127.854 Mh/s, Total Shares: 3019, Rejected: 0, Time: 17:52
19:06:14:926   1b84   ETH: GPU1 0.000 Mh/s, GPU2 0.000 Mh/s, GPU3 31.959 Mh/s, GPU4 31.968 Mh/s, GPU5 31.962 Mh/s, GPU6 31.964 Mh/s
19:06:15:019   1b84   ETH: checking pool connection...
19:06:15:019   1b84   send: {"worker": "", "jsonrpc": "2.0", "params": [], "id": 3, "method": "eth_getWork"}

19:06:15:066   1b84   got 248 bytes
19:06:15:066   1b84   buf: {"id":3,"jsonrpc":"2.0","result":["0xdcb409175e4740a26434b7089a94ad3e37ce77a55858062583924b2c82cd128f","0xec6e8e0d8056cf9eb61046eaeb754b8e71f48e10a86c61f4d287b4ac5244653f","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x4adfaa"]}

19:06:15:066   1b84   parse packet: 247
19:06:15:066   1b84   ETH: job is the same
19:06:15:066   1b84   new buf size: 0
19:06:15:194   1af4   GPU 1: got incorrect temperature 511, ignore
19:06:15:290   1af4   GPU 2: got incorrect temperature 511, ignore