Antminer S19j Pro - shut down unexpectedly... any idea what happened?

[GrahamBam]

Just bought this new unit and got it end of last week. I've had it running for several day and I got an alert from my pool stating it was not working.

I had my girlfriend unplug it (it was running with fans on, but no heat), and re-plug it back in.. Started up and began producing heat and I checked the pool and it was back to hashing.

I checked the history log and this is what I found:

Code:

2021-12-07 14:57:00 30m avg rate is 105838.81 in 30 mins
2021-12-07 15:27:05 30m avg rate is 106117.19 in 30 mins
2021-12-07 15:57:10 30m avg rate is 105681.11 in 30 mins
2021-12-07 16:27:14 30m avg rate is 105986.83 in 30 mins
2021-12-07 16:57:19 30m avg rate is 105815.66 in 30 mins
2021-12-07 17:27:24 30m avg rate is 105918.20 in 30 mins
2021-12-07 17:57:28 30m avg rate is 106028.86 in 30 mins
2021-12-07 18:27:33 30m avg rate is 105686.52 in 30 mins
2021-12-07 18:57:38 30m avg rate is 105766.32 in 30 mins
2021-12-07 19:27:43 30m avg rate is 106488.68 in 30 mins
2021-12-07 19:57:48 30m avg rate is 105776.67 in 30 mins
2021-12-07 20:27:52 30m avg rate is 105846.12 in 30 mins
2021-12-07 20:57:57 30m avg rate is 105945.62 in 30 mins
2021-12-07 21:28:01 30m avg rate is 105702.97 in 30 mins
2021-12-07 21:58:06 30m avg rate is 105955.76 in 30 mins
2021-12-07 22:15:17 !!! reg crc error
2021-12-07 22:15:17 !!! reg crc error
2021-12-07 22:15:20 chain avg vol drop to 0.91
2021-12-07 22:17:32 chain avg vol rise to 13.46
2021-12-07 22:28:10 avg rate is lower than ideal rate, 60427.43 in 30 mins
2021-12-07 22:28:10 30m avg rate is 60427.43 in 30 mins
2021-12-07 22:28:10 chain 0 hash rate 5041.00 low in 15 mins
2021-12-07 22:28:10 chain 1 hash rate 4989.00 low in 15 mins
2021-12-07 22:28:10 chain 2 hash rate 5125.00 low in 15 mins
2021-12-07 22:43:13 chain 0 hash rate 0.00 low in 15 mins
2021-12-07 22:43:13 chain 1 hash rate 0.00 low in 15 mins
2021-12-07 22:43:13 chain 2 hash rate 0.00 low in 15 mins
2021-12-07 22:58:15 avg rate is lower than ideal rate, 0.00 in 30 mins
2021-12-07 22:58:15 30m avg rate is 0.00 in 30 mins
2021-12-07 23:28:19 avg rate is lower than ideal rate, 0.00 in 30 mins
2021-12-07 23:28:19 30m avg rate is 0.00 in 30 mins
2021-12-07 23:58:23 avg rate is lower than ideal rate, 0.00 in 30 mins
2021-12-07 23:58:23 30m avg rate is 0.00 in 30 mins
2021-12-08 00:28:28 avg rate is lower than ideal rate, 0.00 in 30 mins
2021-12-08 00:28:28 30m avg rate is 0.00 in 30 mins

Any Idea what the heck happened?

Thanks!

-Graham

[BitMaxz]

This is only partial logs from your miner it would be better if you can post the whole kernel logs here not the partial logs.

If you have limit posting the whole kernel logs here you can use pastebin.com and paste the URL here.


Where do you mine?
Recently there are few big pools that have DNS issues that is why some miners have issues connecting to any pool.
I don't know exactly what is your miner's problem but if it's related to the pool then switching to a known working pool will solve this issue. Try ViaBTC they solve the issue with their new domain.

Here are a few of their working pool server below

Code:

stratum+tcp://btc.viabtc.top:3333
stratum+tcp://btc.viabtc.top:25
stratum+tcp://btc.viabtc.top:443

[GrahamBam]

I wish I could post the entire Miner log in here but when I do its too long...

-Graham

[mikeywith]

I wish I could post the entire Miner log in here but when I do its too long...

-Graham

You can use pastebin.com to post the complete kernel log and then just paste the link here.

Generally these kind of issues are PSU related, make sure the AC voltage is 220v to 240v and the PSU has enough space for enough airflow. The kernel log should reveal more details.