Re: ANTMINER S3 Discussion and Support Thread.

But the problem is that one card of one of S3's is not working at all!

I have checked everything power, cabling, anything I can imagine but it persist and not working at all!

Any ideas what should I do?

Did you try moving the cables to the other ports?

Otherwise, I would open it up and look for any loose connections. Sometimes things get knocked loose during shipping.

Yes, tried it and open it up as well but found no problem yet!
Checked the controller cable, changed it with the other one! But absolutely nothing happened yet!

It happen during shipping with one of my S1, check for any loose capacitors or inductors on pcb.

there is no shipment problem seems on the device.
But I found a clue.
I connected control cable from main-board Socket-1 to Board 2 and from socket-2 to Board 1.

Now the other board is mining and it's temperature increased.

So it's obvious that there is some problem in mainboard and the Asic Boards and cables are ok.

Looks like its time to swap cables between your 'good' unit and the 'bad' one. Maybe its just a single faulty ribbon cable between the controller and the hashing boards.

Cheers

ribbon cables are ok. tried this before.

If it's not some obvious workmanship problem related to the main-board connector (dry solder joint on the socket to the 'bad' board), then it's probably an RMA issue with BITMAIN. If you want to prove this 'beyond doubt' you could swap controller boards between your 2 Antminers. Ideally they would provide the replacement main-board so that you can continue mining with the 'half' miner while the replacement is shipped to your rather than loosing the whole turn-around time.

Cheers

As you told I replaced the mainboard of bad device with main board of good device and now the device is working with two asic boards ok, so it's obvious that the main board of the bad device have some problem.
I will ask bitmain for a replacement for mainboard and while then my device can mine half capacity. Sad

Thanks a lot guys!

Hi,

RMA request is accepted, PMed you just now.

Thank you! you can send it with my other orders.

Looks like the script for a 'happy end'

Congrats!