I am getting this crash after a couple of hours of mining (r9 380x is gpu affected) - 2 380x and 1 rx480, running on 16.60 drivers.  maybe i need to uninstall those drivers and install 15.12?  Hope I can find those drivers online.

WATCHDOG: GPU 1 hanges in OpenCL call, exit
WATCHDOG: GPU 1 hanges in OpenCL call, exit
WATCHDOG: GPU 1 hanges in OpenCL call, exit
WATCHDOG: GPU 1 hanges in OpenCL call, exit

And then system hangs.