Back on my fan pb, I can't force a RPM. It keep going up and down idk why. I set temp target to 50, it's now 52° and fan are decreasing speed.
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Some numbers seems to be reversed. Try higher target instead of lower.
It's like i can't force cgminer to a fix % fan. I set the temp target at 60 but same problem, it starts hashing with fans at 2600rpm, with --avalon-fan 50 and go down to 2150 and 2060 and 1980 etc etc etc, then stop.
and now its stopped
Just got my machine running its only hashing at 140gh but I am having the same problem as you after about 6 minutes the fans stop spinning also I dont have any fan RPMS listed under the cgminer status window.
When ever I apply --avalon-fan 20 or any other number they speed up for like 2 seconds then they slow back way down.
did u flash them ? I did because it was impossible to connect; that's maybe the pb ?