I had an alike problem. Appeared one of GPU is guilty. Rizer or wire is maybe guilty bad contact, or the dump of chip began.
nah is the same problem..
says WACHDOG GUP 3 hungs in openCL
and after this restarting......
If you want to disable watcdog just add -wd 0 to your Windows batch file (the one what starts your miner). This way you keep mining with other GPUs and the one with an OpenCl error just doesn't take part in mining.
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i can't fix the problem without this?
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