Quote from: BitmainWarranty on October 13, 2016, 01:34:34 AM

in that case, you may want to test 1 hash PCB at a time, to identity which PCB will hash and which one does not. 1 hash PCB connected to the control module at a time

Hope this can help you find which one is bad

Quote from: boody123 on October 13, 2016, 01:18:28 AM

Quote from: BitmainWarranty on October 12, 2016, 08:04:14 PM

If your control PCB has 4 data port, please try using 1 unused port to connect to hash PCB that does not have red LED flashing near the PCI-E power plug when the miner is hashing.

Other wise, if you can take a look at the hash PCB when the S9 is mining, you may notice one of the hash PCB does not have the little red LED on or flashing. (That is the PCB in trouble here)

Quote from: boody123 on October 12, 2016, 05:36:44 PM

Hi,

in one of my Antminer s9 Appears only 2 hash board chips on Miner Status not 3 , this happens after 4 day of working .. despite of I have connected all power cables right in their places I have checked with different power supplies , I have also change data cables but it doesn't Appear.

http://i.imgur.com/z5NXokB.png

http://i.imgur.com/hch1KJQ.jpg

Hi BitmainWarranty,

all of them having red LED flashing when the miner is hashing , even the PCB that facing the trouble and doesn't Appears on Miner Status Page

@BitmainWarranty,

I have tried to do this before and figure it out which one PCB that facing the trouble and doesn't work (I uploaded a pic of PCB below and marked it with a red circle and arrows)

the question here what I should do to fix it ?

http://i.imgur.com/Mhgn8rk.jpg