After mining away perfectly for 8 months without needing so much as a restart, my SP-20 has now become unresponsive.
Anyone have any ideas? I literally haven't tried anything but a restart, as I just recently noticed it was not responding to attempts to access the GUI. Should I try a hard reset (is that even possible)? Any advice would be much appreciated. Thanks!
I had something similar happen with also 8 mo old SP20E.
At first it looked dead with double blinks of the yellow light.
I restarted the PSU and router, reconnected ethernet cable, checked PSU connections.
Still the same (no hashing), but after ~5 min I was able to see it on myminer.io
I connected to the gui then and simply restarted the cgminer and SP20 started working/hashing.
Later I noticed that one ASIC was overheating (which was not the case with these settings before). Tried to switch voltage down a little-still overheating.
I then simply switched that ASIC off in the advanced panel. Everything is back no normal (fingers crossed) and the miner is much more stable.
I could have increased fan-but i have somewhat sensitive ears and cannot tolerate fan at 20 and above.
Will probably test at 30-50 before selling (if ever) because I think that the eighths ASIC is OK, just needs more cooling.
You can also check my post about this in unofficial thread, but it is pretty much the same in even less #of words.