I just received another S1 today and this one was used big time. Lots of Chinese dust all over the PCB boards and fan blades. Should I contact them and have them replace it?
Your choice, of course, but if it works I'd say use it. You'd lose a significant amount of income by being without a unit for the 1 or 2 week turnaround, plus paying for shipping to Bitmain. You'd need to mine for many weeks to recover that, and you'd never catch up to what you could have mined by keeping it.
I guess. Doesn't make sense sending it back all the way. It seems to be stable.
On a different note, is there any setting between 350 and 375? I don't overclock but want a tiny bit more juice out of these things. Like 360?