Bitcoin Forum

Hello, I just bought an Antminer S9, it was running fine for 3 days, decided to change the wire for a better wire since the one I had wasnt really good. I turned it back on now and I saw that one Temp Chip is missing, so basically im doing 9-10THs instead of 14THs... Anyone know why is this happening? Thank you.

Probably a board failed? That happens a lot.

That's most likely the case. Seeing how the Antminer S9 has such high hashboard failure rates it's not really a surprise.

The only thing you can do in this case is accept it or contact Bitmain to RMA it. I'm not sure what Bitmain's policy for hashboard failures is though because I personally haven't had to RMA anything.
You should take into consideration the amount of time it will take to return it and get a new one as well if you decide to do that.

U mean u change the ethernet wire?

Change it back to the old ethernet wire.
I had a hashboard show up after a better ethernet wire was used. Weird but true and this happened on 2 different miners!!

Paying for a repair is another option. In bitmain site it says the S9 you need to ship the entire unit, I won't do that. I opened a ticket with them but it's moving slowly. Meanwhile I'm trying bitmainwarranty.com and I'll report back what happened with them. I may need to pay $250-$300 for the repair though :( In case another board fails I probably will have bitmains response by then  >:(

My board appeared after i changed ethernet wire and this was also the case for woodginns. I know it sounds silly. I changed a right angled one to a normal higher quality piece.

Please stop this nonsense already. You posted this BS 10s of times.

It isnt nonsense and it has worked for at least 3 people now. I have tested and it is the ethernet wire for that miner. I thrown it away and bought quality ones. Before that, I have resetted multiple times (all 3 reset types), changed to 2 new bitmain PSUs and new psu cable. That didnt work. It is that ethernet wire. For some odd reason, lower quality ethernet wire can cause the miner to only show 2 hashboards.

It worked!!! Changed the Ethernet cable and the chip went back on... thanks a lot guys!

I see. Glad it worked for u too man. Welcome

Thank you so much!! :)