Nope...no such luck. These are replacing two S7s I've had up there since last year. I'll get a net increase in hash. I've asked them to hold on to the S7s until they get more power...we can then put them back online and run them 'til they croak, basically...it's a workable thing 'cuz the 721 and 741 use less power than the S7s they're replacing. I trust Alan to hold the other boxes on the cold rack until the situation changes (est. 2-3 mo).