Hello tabrizcoin

I have exactly the same PROBLEM.
After cleaning the miner, only one hash board working.
1 is dead right after startup and another one works for 5-60 Minutes, sometimes.

I can start the miner and swap the hashboard cable from the working board
to the dead/working board and it will heat up.
I think the controller drives the chip for setup the frequency....
After the heat up,  I can restart the miner and the dead/working board is working.

Sometimes from 5 minutes to more than many houres.

I have no solutions, I think its a solder problem...

Please write any solution if you get one.

Another interesting thing is, there must be hundreds of T1 outside and many dead boards.
WHY WHY WHY is nothing on the second hand market?

Thanks BitMaxz for the help.

In the second picture you can see all three hash boards. In the first picture you only can see two bit in the summary all hash power from three boards.

My problem solved from all one but I will understand the problem.

After multiple Restart and rest of the pool data the missing line is back.

https://pbs.twimg.com/media/D22IrTrW0AICXvb.jpg:large

Hello miners

Today i have tested the Braiins OS on my Antminer S9 13.5Th.
First try with SD Card no problems and 100% working like it should.
I can save about 1 Amp, fantastic.  Grin

After a restart one CHAIN ID Line is missing.
Restart, reflash nothing helped.
I have tested Bitmain Firmware again and it works 100% with 100% Chips and 100% Hashpower.

Back to Braiins OS and again one Line is missing but the Hashpower is from 3 Lines.

Anybody any Idea?  Huh

Thanks.

https://pbs.twimg.com/media/D21_QS0WwAIPBHW.jpg:large

Thanks BitMaxz

I think also it's the board with some failure.

I tryed 550/600/650 frequency firmware. But only get worse, sometimes no hash from the faulty board.
After my last reset, the board hashes with 2.5Th for 6 houres, now again droped to 0.5.

Thanks all for the help, i think its a faulty board.

Did you install the new Update from BITMAIN Website?

-->--> Antminer-S9-all-201711171757-autofreq-user-Update2UBI-NF.tar.gz


Looks like you installed a fixed frequency.
Try the "AUTOFREQ" firmware.

I have exact the same problem.

One hash board failed constantly.
First it shows 4.5TH (ideal) but only does around 1.5TH (RT) and drops after minutes or houres.
Not always the same after a reset.

In the boot up phase, the "faulty" board is flashing the red light a lot looooooonger than the other boards.

I have done a few reset und firmware uploads, nothing helped.
Sometimes it show only 15° temp. Sometimes it show normal temp around 75°.
Sometimes it show only 16 ASIC, sometimes all 63.
NEVER seen a X only ooooooo.

The Problem is, after a few houres the hash is only ~50GH and an absolut joke for the power.

I have 220 Volt, tested only the "faulty" board allone and the same happend.
I have chanched the cables and nothing helped.

I have seen a lot of people the same problem but NO HELP found.

Any ideas???

I have exactly the same problem.

No XXXXX in the Chipscreen, only 000000.
So i think all have to be good.


After a RESET its not always the same.
Sometimes the one low hash board shows 4.5TH (ideal) and always different 0.1 to 1.5TH (RT)

Temps sometimes show realistiv 70 sometimes only 15???
After the last reset only 19 ASIC on the board sho up with 00000.
After another reset all 63 ASIC show up 000000.

My S9 not do more than 9.5TH with all 3 boards...

Im on 230 Volt SWISS Power and tested only the low hash board.
Its not a power problem.

Any ideas or any help.

Hello all

I have the same problem.

I'm new and my S9 does only 4.5+0.5+4.5TH on the boards.
Firmware Update helped nothing.

Anybody can help?

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Moderator's note: This post was edited by frodocooper to add code tags.