D7 - one hashboard not showing and the other hashes only at 65gh/s

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10 comments

    Hi,

    Yes I have the same problem. Bought 5 pcs and only 2 working well. 

    It looks like chip issues. 

    At what temperature are you running yours? 

    Rgds,

    Jaro

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    Hi, 

    Same issue here. Purchased 3 x D7 units and 2 of them faulty. Only running two Hash Boards.

    Cheers

    Mark

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    Troubleshoot with the support using another 100% working D7.  Cables are all good. PSU both are good.  We pinned down the two boards.  #2 and #3 are bad.   #2 hashes at full speed, 420+gh/s and will throttle down to less than 60gh/s.  #3 board is just dead.  Swap #3 board with another D7 and the board still not showing on the second D7.  A good hashboard from the second D7, worked at full speed with the first D7.  So... anyway, opened a repair ticket and shipped the D7 to Delaware, US.  Hope to get it back soon.  

    Temp is 57 in and 75 out.

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    Same problem here, 1 of the 3 hasboards stopped working minutes into mining. Sent info and logs to Support just waiting on a reply from Bitmain.

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    From my understanding you can only ship the D7 to Hong Kong, how did u ship it to Delaware?

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    What ever happened to this?  I'm having similar issues.

    Is USPS an option to ship to Bitmain in HK?

     

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    Hi,  I am the original poster of this thread.  I have sent my defective D7 to Delaware, US repair shop and was returned an exact same defective machine.... lol... still two boards defective.  Not sure why but this is what happened.  But after contacting the support for explanation, they offered to pay for the shipping charge(as it is a second DOA and in form of credit) back to Delaware and eventually they shipped a replacement for me from China.  So, ship to Delware and not HK for your D7 repair if you are in the US.

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    What was the turnaround time for sending it to DE/them sending it back to you faulty and what was the overall turnaround time until resolution with the new unit? 

    I also wanted to check if you sent it to DE when the website HK repair only or did you send it before that was a stipulation on one of the devices?  I just don't want it to be sent back for no reason and wasting time.

    Thx for the info!

     

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    It took about one month to get the first one back from repair.  Ticket indicated minter repaired and ticket was completed.  It took another 2 weeks to get a replacement from China after reopening the repair ticket.  I had confirmation from ticket support staff to send to Delaware.    Best you create support ticket with them first if you have doubts.

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