Quote from: Apprentice on December 29, 2018, 06:10:32 PM

is any of you having issues with fan speeds?

some miners are like running at fan full speed every 1-2 minutes for like 10s (continuous)

Yes, this problem exist under light load or cold ambient temperature. Next release will probably fix it.

Quote from: sarcheer on December 07, 2018, 06:02:11 PM

I've installed this via the web portal on one of my R4's and am having problems getting it to hash. It will submit 3-4 shares before stopping. It appears to be linked to fan speed as when the fans drop from start up, around 3k rpm, the miner stops hashing. For some reason the fans drop as low as 800 rpm (never seen them that low) and my guess is thats causing a failure mode to kick in like it does on the s9's when people disconnect the fans to try and oil cool. As there is no way to control fan speeds through BOS at the moment, I can't test this theory. I'm in contact with Braiins support and will keep the thread update with how this issue gets resolved.

Yes, the problem is that it expect TWO FANs. To overcome it, you can connect RPM pin from FAN1 with FAN2 on control board. Just connect pin with yellow wire with the same position at FAN2 position. Always do this when disconnected power - next pin is 12V which will permanently damage control board when connected to RPM yellow pin. (I did it.)

Next release should fix this problem.

RadekG2

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