New Antminer S19 90T - faulty chip

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3 comments

  • Official comment

    Hello, we'll need the completed kernel log to check, please contact us at support-cs@bitmain.com to provide it.

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    My another S19 90T miner restarted 1 hour ago and 2 hashboards are broken now, the same thing. 1 chip on each hashboard is not working and the whole hashboard is not working too. What is the problem ?

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    After several restarts I got this log. Which problem can cause chip failure ?

    2022-03-12 22:05:20 Chain[0]: find 88 asic, times 0 
    2022-03-12 22:05:31 Chain[1]: find 87 asic, times 0
    2022-03-12 22:05:43 Chain[1]: find 87 asic, times 1
    2022-03-12 22:05:55 Chain[1]: find 88 asic, times 2
    2022-03-12 22:06:01 Chain[2]: find 87 asic, times 0
    2022-03-12 22:06:05 Chain[2]: find 88 asic, times 1

     

    After several restart log tells this

    2022-03-12 22:27:05 Slept 119 seconds, diff = 5.
    2022-03-12 22:27:06 set_voltage_by_steps to 1700.
    2022-03-12 22:27:09 chain avg vol rise to 16.91
    2022-03-12 22:27:11 start up min temp by 75a = 6
    2022-03-12 22:27:22 Chain[0]: find 88 asic, times 0
    2022-03-12 22:27:32 Chain[1]: find 87 asic, times 0
    2022-03-12 22:27:44 Chain[1]: find 87 asic, times 1
    2022-03-12 22:27:57 Chain[1]: find 87 asic, times 2
    2022-03-12 22:27:58 Chain 1 only find 87 asic, will power off hash board 1
    2022-03-12 22:27:59 chain avg vol rise to 25.36
    2022-03-12 22:27:59 chain avg vol drop to 16.90
    2022-03-12 22:28:09 Chain[2]: find 87 asic, times 0
    2022-03-12 22:28:21 Chain[2]: find 87 asic, times 1
    2022-03-12 22:28:33 Chain[2]: find 87 asic, times 2
    2022-03-12 22:28:34 Chain 2 only find 87 asic, will power off hash board 2
    2022-03-12 22:28:35 chain avg vol rise to 33.80
    2022-03-12 22:28:35 chain avg vol drop to 16.90
    2022-03-12 22:28:40 pulse_mode = 1, ccdly_sel = 0, pwth_sel = 1

    These miners are NEW, just from bitmain. Please, help

     

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