Same question as before but with pictures, miner is hashing away when suddenly the whole OS slows down to a snail pace where i have to wait for 20 seconds for every action to go through and the hash rate is cut by 50% with the GPUs doing this strange hashing pattern:

Please advise, this happens on any pool i try, in both dual mining and ETH only mode, across multiple overclocks..
This is a soft crash; if you have already tried lower OC; it is most likely being caused by too low of a powerlimit.