Sorry, I guess I posted my issues in the incorrect post (your review guide in the hardware section) and it got deleted by the admin - sorry.
But - here is that post (with additional below):
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I recently received (2) Avalon 841's and cannot get either of them to run.
I initially tried them downstream of an already hashing 821 - no luck. If I put the 841 1st, then the 821 - neither worked.
I then tried the 841 with their own controller with 841 pre-installed software (for Avalon 821/841) - no luck on either 841 with different power supplies.
I changed AUC3's, data cables.
Nothing I do works.
When I say it does not work or no luck, here is what happens - initially powers up and fan runs at full speed (light light blue/white) for about 20 seconds, the the fans (almost) stops and the light is now green - it never turns blue - never spins back up /hashes.
On other item, both the Kano worker page and the Avalon CGminer status the 841 as connected to the pool OK, but not hashing.
So I have 2- 841's just waiting to start hashing - Can someone HELP me??? !!!
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Update - I have tried everything: changing AUC3 data cable, AUC converter, PSU, controllers, internet port connection and even tried all of that on the 2nd 841 (I have just been trying to get one unit to run).
When I rewrote the Raspberry Pi3 Firmware onto a newly reformatted card (again), there was one difference - this time the 841 cycles on and off every minute or so. Now it cycles on (with green light) for a minute now (longer than before), the cycles off (still green) and repeats this on/off routine continuously (always green).
