When running before the errors start all 4 combined produce a fairly stable 235-240 GH. The problem is when after just a few minutes I start seeing the rejection errors (unknown - work)
I suppose in many ways I've bitten off more than I can chew because I just don't know enough about the software (BFGminer) or the SGL600G units to start troubleshooting in any coherent or methodical way.
At present running the bitminter client makes things childs play but even that has produced some issues over extended periods where the 210-230 GH rates per shift starts falling away to the 190-180s before I stop it and restart them manually (which for some reason seems to work.)
Occasionally the machines will stop and restart themselves, I don't know whether that's normal. Every time anything happens that isn't expected I start to get paranoid these things are going to pack in.
What's really pissing me off is how much I paid for these, a stupid amount, and yet I absolutely know they're never going to make me anything. I knew this before buying them but did anyway like I was possessed or something. I don't know what you'd call that, only words I can muster are utterly stupid.
Within about an hour of getting back and setting them up I sat in a cold sweat and thought "what the f*ck have I just done..."