Hey all, I just wanted to share this new to me life hack. If you wire your rigs to 240 volt instead of 120, you gain about 4% efficiency. I tested this with my watt meter at the wall, and my rig dropped from 1570watts to about 1505. https://www.reddit.com/r/EtherMining/comments/8da8m9/how_much_more_efficient_is_a_standard_atx_power/