Antminer E3 output 180mhs with electricity draw of 800watts, it won't matter even if it's patched, that 800watts will drain 99% of your profits and you will be mining at great loss unless you have free electricity and I believe there is no such thing as free electricity
I have 3 here running and they run 197-210mh each @ 768-779 watts each depending on the power rate you pay they are profitable.