Quote from: edonkey on July 26, 2016, 04:04:19 AM

Quote from: Zelek Uther on July 26, 2016, 03:21:27 AM

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Quote from: bluudz on July 24, 2016, 04:01:30 PM

It seems that one of the board in my miner always start getting more HW errors than the rest. Anyone is experiencing that? For example now (chain 1: 18 HW, chain 3:28, chain 4 :220). Usually it runs fine for some time, but after it last board is getting much more errors. I just want to confirm weather I should try to get the board replaced or there is any other thing I could try?

Thank you for any advice

I think the 3rd board always on the S9's are all producing more HW errors than the others. Most likely because of the heat and case design and air flow.
All of mine are like that and all the others I have seen are the same.

Ok thank you. Wasn't sure if my board is not broken.

Thanks for this. I just got my S9 this week, and I'm happy with the hashrate, it's a great machine. Didn't notice that the third board had more HW errors than the others until I read this, but have checked and mine is like that too.

I'm also seeing 10x HW errors on the third board with my B3 S9. Been like that from the beginning.

Looks like it's a very common situation. Assuming that they didn't consistently place crappy boards in the third position, it's likely an airflow/design problem (as others have suggested). Good thing that the other boards compensate for the "bad" position.

But given that we're past batch 9, it's clear that Bitmain isn't interested in using our feedback to improve their design. This problem will never be fixed.

Not that it matters. Seems like their main focus is on controlling supply and managing the difficulty.

For a while now I've wished for competition to break Bitmain's current monopoly. But in retrospect, it's probably a good thing for little miners that a competitor has not emerged. If a real competitor surfaced now, Bitmain would just slaughter them in a price war, and the little guys (me included) would be crushed by the increased difficulty. In this scenario the halving drop off will likely be too short lived to be much help.

Every difficulty jump that stays under 213 works for a smaller guy like me.

My solar array is low cost power, but has a power cap. say 8.4 kwatts.

So if diff goes to 400 I hurt at 500 I hurt more.

Frankly bitmaintech has played the s-9 exactly as I have hoped for. Making a profit more and more likely as time goes on.