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April 26, 2014, 08:57:59 AM |
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Okay, I've unhooked everything and plugged in each Antminer U2 one at a time, every one of them is good, runs nice and stable, tried different USB devices in the Anker 9+1 port hubs and they're all working fine, every port so that's not it, I started plugging the Antminers back in one at a time and they started working, it's so weird, they wouldn't work if I unplugged the hubs and plugged them back in, but with the hubs powered and plugged in, each Antminer U2 was coming up as it did before but this time it would work in BFG Miner too.
I found what the problem was, I forgot I was testing cooling angles with the fans so I could get a good overclock going and I had them set to 2.8GH/s before I restarted the computer so when I reset the .bat file from x0781 (1.6GH/s) back to x4C81 (2.6GH/s) I was on before doing Windows Updates I was watching it and it was just hardware errors non stop, they just kept going up so I stopped it, dropped it back down to the stable x0B81 (2.4GH/s) and again, only 4 would come up.
I unhooked everything again, reattached all three hubs with nothing in them and having them powered on, started plugging in each Antminer U2 one at a time and set my .bat file back to x0B81 and it's good again, all 10 running at 2.4GH/s without a problem, the heat sinks are cold to the touch from ambient objects in the room which I think is pretty impressive.
So, you know, if anyone else is having an issue after overclocking to 2.6GH/s, just unhook everything and plug them in one by one and they worked for me.
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