New D7 Hash Board Failing ONLY 2/3 working

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Mark de Jongh

I purchased and received 3 x D7 Antminers two days ago and two units are faulty. They only running on 2/3  Hash Boards.

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17 comments

Date Votes
  • Official comment
    Linda

    Hello, you can provide the kernel log for further check, thanks!

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  • Jason daszkewicz

    I am having same issue, purchased 5 and 1 hash board has now failed.

    How do i get replacement, sent log , did factory resets , tried different pools , nothing works. 

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  • JB Gouret

    Same issue here, 2 hash board out of 3 are recognized. Just sent the logs to support.

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  • Linda

    Hello, you can provide the kernel log to support-cs@bitmain.com for further check, thanks!

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  • Ricardo Zuechner

    hello is send a mail on support and he write me i most come here.

     

    in the morning was 2 boards normaly 426 gh and one board only 225 gh.

    i make restart and now i see only 2 boards can  help me ?

     

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  • Scott Seaner

    I have the same issue.  Not seeing one board.   Any solutions?  It worked fine for two months.

     

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  • Ponsin Jiraarkkrapong

    Who has problems submitting claims or buying chip repairs themselves?

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  • Mark de Jongh

    Scott Seaner & Ponsin Jiraarkkrapong & Ricardo Zuechner

    I had to ship all three of my D7 miners back to Bitmain in Hong Kong. I am still waiting for them to be repaired and returned.

    NB: Bitmain will NOT pay for the shipping to their repair depot but claim they will pay for shipping the miner/s back

    https://service.bitmain.com/.

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  • Scott Seaner

    How long ago did you ship them?

     

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  • Mark de Jongh

    Scott Seaner I shipped 1 month ago and they have shipped it back now. Still in transit back from HK repair centre though. Looks like they replaced the machines as the return SN's are different to the SN's of the machines I returned.

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  • Scott Seaner

    That must be why the D7 can only be returned to HK and not to a US service center as they are replacing them, not fixing them.  They must have numerous DOA's.  I am shipping mine back this week. It ran fine for two months then one board failed and yesterday a second board failed.  Very frustrating and expensive.

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  • Mark de Jongh

    for sure, the extra shipping cost as well as the loss in revenue is unfortunate....

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  • Kenny Chantasi

    I'm  experiencing the same. The remaining 2 hashboards have a lot of hardware errors as well.

     

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  • Mark de Jongh
    • Edited

    I received the three D7 machines back today after almost 2 months and one of them is only running 2/3 hashboards.....this is extremely disapointing to say the very least.

    So, now to see how Support is goiong to handle this one.

    Secondly the mchines are rather scratched up after being at Bitmain.

    I had to pay the shipping to Hong Kong from South Africa the first round, now lets see what Bitmain will do.

     

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  • Scott Seaner
    • Edited

    I am regretting my D7 purchase.  I cannot send mine back until after they return from the Chinese festival.  By the time I get it back it will be approx. 4 to 5 months of lost revenue.  Definitely sounds like a defective run. 

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  • Mark de Jongh

    seems this is a general issue with the D7 - See another post:

    https://support.bitmain.com/hc/en-us/community/posts/4410188897561-D7-one-hashboard-not-showing-and-the-other-hashes-only-at-65gh-s

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  • Scott Seaner

    I just received my D7 from Hong Kong that was sent in for repair due to inoperative hash boards.  I purchased it new and it was only online for one month.   Only two of the three hash boards are now working after being repaired by Bitmain.   This is ridiculous.  There is a serious flaw with the D7and Bitmain needs to make it right.  Anyone have any luck shipping to a US repair facility?

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