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Author Topic: low hash rate. good status  (Read 49 times)
pettah977
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March 07, 2018, 01:26:35 PM
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Hello after resetting my antminer s7 it showed only some 0 on the status for board 3. However now when i restarted it sometimes it show all zeros that it should be ok, but only 25C temp and 3.3 Th/s instead of 4.7 so im guessing it doesnt hash? anyone have had the same problem? is the onlu solutions to buy a new board?

very weird i dod firmware reset and now board 3 works but not board 2. so this must be some kind of not hardware failure
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BitMaxz
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March 07, 2018, 06:09:53 PM
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It is the same as what happened with this thread https://bitcointalk.org/index.php?topic=3059655.msg31515134#msg31515134

He is getting error status the same as yours, it shows oooooooo ooooo oooooooo oooooooo oooooooo oooooooo something like that.

Since you flashed your antminer with stock firmware. It should be fine, but like you said your miner hashing low.

Did you try adjusting frequency and fan?

pettah977
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March 07, 2018, 06:26:28 PM
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It is the same as what happened with this thread https://bitcointalk.org/index.php?topic=3059655.msg31515134#msg31515134

He is getting error status the same as yours, it shows oooooooo ooooo oooooooo oooooooo oooooooo oooooooo something like that.

Since you flashed your antminer with stock firmware. It should be fine, but like you said your miner hashing low.

Did you try adjusting frequency and fan?

hi thanks from linking that other topic. Yes i tried adjusting frequency but it doesnt matter. The weird thing is that sometimes is board 3 and sometimes its board 2. I really have no clue what to do  Undecided
pettah977
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March 08, 2018, 10:33:53 AM
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It is the same as what happened with this thread https://bitcointalk.org/index.php?topic=3059655.msg31515134#msg31515134

He is getting error status the same as yours, it shows oooooooo ooooo oooooooo oooooooo oooooooo oooooooo something like that.

Since you flashed your antminer with stock firmware. It should be fine, but like you said your miner hashing low.

Did you try adjusting frequency and fan?

somehow i got it to work now. i just restarted and re flashed it andchanged frequency and fan speed like 40 times and now somehow it works.
ccgllc
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March 08, 2018, 06:37:15 PM
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somehow i got it to work now. i just restarted and re flashed it andchanged frequency and fan speed like 40 times and now somehow it works.

Antminers in general are very finicky.  I've had units flaky units require a half-dozen power cycles to come up right, without any other changes.  Fortunately once running they sometimes stay running.

My point is simply to remind everyone a basic scientific principle:  Unless you can change something and see the effect, change it back and have the effect go away, and repeat that process at LEAST 3 times, it very possible what you saw was not directly correlated to what you did.  Repeating 5 times is considered good practice.

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