Antminer L3+ not hashing full speed and rebooting

AntMiner • Other Miner • Hans • Posted 2017-09-21 13:56:23 • Reply by 249436 at 2017-09-27 21:02:40 • Read 3138 times

Hello,

I have 2 Antminer L3+ running for almost 2 months now, one of them is running full speed (504 MH/s) bu the other shows 0.0 MH/s. It also reboots automatically. Sometimes it is hashing, and then the status page shows this:

 

One (or possibly more than one) of the boards seems to be defective. Does anybody know this problem?


Received a total of 5 Replies
eavp_hot.ee • #1 • 2017-09-21 18:15:08

Your hashboard number 2 does not working.

Send him a warranty for repairs. Not the miner in one piece, send only hashboard.

szajdi_yahoo.com • #2 • 2017-09-22 09:35:56

the temp on chip u got more then 100 ?

nice :) if this true i dont think they will warrant :)

249436 • #3 • 2017-09-22 10:57:19

...............................

 

 

Please try reloading the firmware: Antminer-L3+-201704271426-384M.tar.gz
Run the miner for 20 minutes after loading.

If it still does not work please test each hash board separately to determine which one is defective.

To test each hash board separately: keep the PSU connectors and controller cable on one of the hash boards connected and disconnect the cables from the other two hash boards. With the miner running you can see the status of the connected hash board.

Here is more detail: http://support.bitmain.com/hc/en-us/articles/226142788-Testing-hash-board-one-by-one

On the miner status screen defective chips are displayed as "xxx", "---" or " ASIC≠72

Once you know which part is defective please create a Repair ticket and ship the part back to us according to these instructions: https://cnshop.bitmain.com/workOrderGuide.htm

http://support.bitmain.com/hc/en-us/articles/222648028-How-to-disassemble-miners

Please pack the hash boards carefully. If the PINs are lost due to shipping damage it will void the warranty. Here is a video demonstrating how to pack the boards: https://youtu.be/Z0LdykALhxI

Please let us know if you have additional questions or concerns.

Hans • #4 • 2017-09-27 19:17:35

Thanks for the replies. I disconnected board 2, no more reboots and a steady hash rate of about 375 MH/s.
I don't have much confidence in the reloading firmware procedure as it seems a clear hardware failure to me, but I will try that later.

Now there is a "warranty void if removed" sticker on one of the screws holding the fan in place, which I would have to break.

Does this not apply if Support tells me to remove the board?

249436 • #5 • 2017-09-27 21:02:40

Thanks for the replies. I disconnected board 2, no more reboots and a steady hash rate of about 375 MH/s.
I don't have much confidence in the reloading firmware procedure as it seems a clear hardware failure to me, but I will try that later.

Now there is a "warranty void if removed" sticker on one of the screws holding the fan in place, which I would have to break.

Does this not apply if Support tells me to remove the board?

 

I asked from support permission to open miner. They did not respond to this, but sent the guide above. So I think I'll send it right now to repair.. https://enforum.bitmain.com/bbs/topics/3735

 

 


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