New D7 Hash Board Failing ONLY 2/3 working

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Mark de Jongh

• November 25, 2021 12:18

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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  Linda

  • November 29, 2021 02:44

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

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  Jason daszkewicz

  • December 04, 2021 00:45

  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

  • December 09, 2021 16:12

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

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  Linda

  • December 10, 2021 08:32

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

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  Ricardo Zuechner

  • December 31, 2021 11:20

  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

  • January 10, 2022 06:12

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

   

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  Ponsin Jiraarkkrapong

  • January 10, 2022 06:31

  Who has problems submitting claims or buying chip repairs themselves?

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  Mark de Jongh

  • January 10, 2022 08:28

  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

  • January 10, 2022 14:06

  How long ago did you ship them?

   

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  Mark de Jongh

  • January 12, 2022 09:50

  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

  • January 12, 2022 13:22

  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

  • January 12, 2022 14:40

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

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  Kenny Chantasi

  • January 13, 2022 00:22

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

   

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  Mark de Jongh

  • February 02, 2022 08:33
  • 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

  • February 01, 2022 16:40
  • 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

  • February 02, 2022 08:34

  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

  • April 21, 2022 01:42

  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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  Yodanorgaard

  • June 06, 2022 08:36

  Worst customers service
  3 months now and they still have not repaired my d7 and know I have another 7 hash boards not working with less then 3 months minibg

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  Scott Seaner

  • July 17, 2022 13:39

  I sent my D7 to Hong Kong and it was returned not working.  I then sent it to the USA repair facility.  It was returned not working.  I have spent hundreds in shipping costs along with lost mining revenue. Now they want me to send it back again which will cost me more money.  I am not sure its worth it.  Bitmain should just replace it.

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  accounting

  • July 17, 2022 18:26

  2 of 3 of my D7 repairing in Bitmain, still 3 are in repair after 8 months.
  1 they "fixed" it now the 4th time, they asked me to pay shipping fee, now the warranty expired repairing fee. Worst case, I paid they are not fixing but just unplug power of the bad dashboard to make it looks like "fixed". They just do not replace it for their Dead on Arrival products.

   

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