GPU hangs are most often from to a high overclock, especially on the memory or too much undervolt for that card. Sometimes draining all the power from the capacitors also helps reset the GPU's and risers. Shutdown down the rig, cutoff the power to the PSU with the switch on the back and press the power button to drain all the power. Then after 1-2 minutes turn the rig back on.
Thanks, let me try this out.
I did memory bios flash to the max, if turn off doesn't work I will 're flash to lower MHz.
Tried complete shut down and 're start but did not work. Then reduce men clock from 2250 to 2200 and miner worked longer than before before 're-start. I think I will have find the balance set up to get this going.
However, on monero it doesn't give any problem but 8 gb card gives less hashes proportionate to 4th. 4gb gives 413 and 8 gb 830 hashes which is almost 2 times of 4gb. Whereas, on eth 4gb is 13 mhs and 8 gb is 31 mhs which is almost 2.5 times of 4 gb.