ADVICE - One board on S7 shows zero as temp and HIGH HW errors ???

[bilabonic]

Hi All

All of a sudden my S7 has developed a problem as in pic below....It will run for 30 mins or so then it starts 'beeping' and stops mining and the temp shows 100 !!!

Anyone got any ideas ?

What board is it (i think it is the furthest from the ethernet port) ??

ALSO is it ok just to power one or two of the 3 inputs on the faulty board ??

I have tried various psu's and still get the same and each PSU powers ALL boards...as obvious.



Cheers

[not.you]

Had that exact issue with one of mine.  Eventually I could not get it to mine at all with that board connected because it always showed a random temp above 90 (usually like above 110-130) which prevents it from mining.  I sent it to Denver for repair.  Cost $75 for repair plus something like $25 for shipping.

This is the place that can do repairs: bitmainwarranty.com

But looking at the site: https://bitmainwarranty.com/shop/ I see that they have S7 boards for sale directly so you may want to just go that route.  Why the 45 chip board costs more than the 54 chip board I do not know (maybe because it runs at a higher freq?).

[bilabonic]

Had that exact issue with one of mine.  Eventually I could not get it to mine at all with that board connected because it always showed a random temp above 90 (usually like above 110-130) which prevents it from mining.  I sent it to Denver for repair.  Cost $75 for repair plus something like $25 for shipping.

This is the place that can do repairs: bitmainwarranty.com

But looking at the site: https://bitmainwarranty.com/shop/ I see that they have S7 boards for sale directly so you may want to just go that route.  Why the 45 chip board costs more than the 54 chip board I do not know (maybe because it runs at a higher freq?).

I can not see any boards for sale on the site ? Only Hosting ??

Thanks

[at6871]

Hi All

All of a sudden my S7 has developed a problem as in pic below....It will run for 30 mins or so then it starts 'beeping' and stops mining and the temp shows 100 !!!

Anyone got any ideas ?

What board is it (i think it is the furthest from the ethernet port) ??

ALSO is it ok just to power one or two of the 3 inputs on the faulty board ??

I have tried various psu's and still get the same and each PSU powers ALL boards...as obvious.

http://img.photobucket.com/albums/v662/romanski/antimer%20faulty_zpsqawnukw5.jpg

Cheers

Hi,

Chain 1 is the 1st board on your right when you are facing the front of the miner (with Ethernet port).
It is ok to run just 1 or 2 boards. You just have to disconnect the power and data cable of the faulty board.

[bilabonic]

Hi All

All of a sudden my S7 has developed a problem as in pic below....It will run for 30 mins or so then it starts 'beeping' and stops mining and the temp shows 100 !!!

Anyone got any ideas ?

What board is it (i think it is the furthest from the ethernet port) ??

ALSO is it ok just to power one or two of the 3 inputs on the faulty board ??

I have tried various psu's and still get the same and each PSU powers ALL boards...as obvious.



Cheers

Hi,

Chain 1 is the 1st board on your right when you are facing the front of the miner (with Ethernet port).
It is ok to run just 1 or 2 boards. You just have to disconnect the power and data cable of the faulty board.

Cheers, so what i thought was correct then, board one is basically opposite to the PCIE supply for the control board..


What i also asked is it possible to run one or two of the inputs (out of the 3) on the faulty board ?

[isoneguy]

Yeah, don't tell anybody this but you don't have to supply power to all 3 pcie plugs. If you are running a full s7 at full clock speed then I wouldn't use less than 2 of the plugs per board.

It will run power to the entire board though...even with 1 plug.

I have one running with 1 plug per board. It's underclocked mind you... 1 pci-e plug won't be throwing more than 300 watts...you don't want all that power going over a single wire/connector.

[IITravel01]

So, I've got a S7-LN that started doing this, temp. on one board is near 90 while the other is in the 30's, all 45 ASICs appear to be working on both boards.  Mines for a while, then lots of HW errors and beeping which then stops mining.  Is this something that can be fixed?

[fanatic26]

The temperatures are pulled directly from the hashing chip, normally chip #45 the last in the string. Outside of replacing that chip there is not much to be done.