Any idea why this miner force shut down the whole rig after some minutes?
No temperature or PSU problems. Same behavior with only one GPU.
U could try to use a very clean .bat file, just the pool, workername/password, -i 18 and let it run.. sgminer is one of the most unstable miners out there, but it can also be one of your settings.. So keep the .bat file clean.
Ps. yes i know its an old reply, can be other ppl come here and can use the answer.