Wierd Behaviour on Antminer S5

[gerardo15]

Hello guys, so i have by now like 10 S5, i bought them  at different times so they probably are different batchs but i have noticed this wierd behaviur in most of my S5

Has it happened that at some point of the day one blade will shut down for lets say 5 minutes, and then turns it self on again and continue to work?  i have had to sent to Bitmain 2 broken blades because they stopped working, so everytime i see one blade shut down i kind of freak out.

I got the Used Antminers yesterday and also happened before to me that you turn on the miner and after 5 minutes one blade stop working so i have to do a hard rese ssh reset won't fix the issue

This has happened in all firmwares, but i just updated to July 11.

[Rabinovitch]

What PSUs do you use?

[zagamon]

Hello guys, so i have by now like 10 S5, i bought them  at different times so they probably are different batchs but i have noticed this wierd behaviur in most of my S5

Has it happened that at some point of the day one blade will shut down for lets say 5 minutes, and then turns it self on again and continue to work?  i have had to sent to Bitmain 2 broken blades because they stopped working, so everytime i see one blade shut down i kind of freak out.

I got the Used Antminers yesterday and also happened before to me that you turn on the miner and after 5 minutes one blade stop working so i have to do a hard rese ssh reset won't fix the issue

This has happened in all firmwares, but i just updated to July 11.

Did you at any point notice random beeping even though the temperature is way below 80C?

[gerardo15]

I use Corsair CX750, Dell N750P and Hp DPS 800GB, this has happened with all pSUs

[gerardo15]

Hello guys, so i have by now like 10 S5, i bought them  at different times so they probably are different batchs but i have noticed this wierd behaviur in most of my S5

Has it happened that at some point of the day one blade will shut down for lets say 5 minutes, and then turns it self on again and continue to work?  i have had to sent to Bitmain 2 broken blades because they stopped working, so everytime i see one blade shut down i kind of freak out.

I got the Used Antminers yesterday and also happened before to me that you turn on the miner and after 5 minutes one blade stop working so i have to do a hard rese ssh reset won't fix the issue

This has happened in all firmwares, but i just updated to July 11.

Did you at any point notice random beeping even though the temperature is way below 80C?

No, that never happened to me

[philipma1957]

Hello guys, so i have by now like 10 S5, i bought them  at different times so they probably are different batchs but i have noticed this wierd behaviur in most of my S5

Has it happened that at some point of the day one blade will shut down for lets say 5 minutes, and then turns it self on again and continue to work?  i have had to sent to Bitmain 2 broken blades because they stopped working, so everytime i see one blade shut down i kind of freak out.

I got the Used Antminers yesterday and also happened before to me that you turn on the miner and after 5 minutes one blade stop working so i have to do a hard rese ssh reset won't fix the issue

This has happened in all firmwares, but i just updated to July 11.

what is your internet connection?

Sounds like your net connection is dropping out.  (since the psu's you use should be good)

Also did you  over clock or  use standard clock.

[gerardo15]

what is your internet connection?

Sounds like your net connection is dropping out.  (since the psu's you use should be good)

Also did you  over clock or  use standard clock.

I have 2MBPS connection.

If internet connection is dropping out shouldn't all miners decrease their hashrate?

all miners are at default frecuency.

At first i thought the miner had a problem, but with all of them? different PSUs? my friends miners at his house suffer the same thing.

Why would a blade shut down (Red led goes off and Temperature decrease to 30-32 C)

[VirosaGITS]

I get a similar issue where blade #1 drop for a few minutes then get picked back up. I'm hoping its a firmware issue and not a blade thats ready to crap out. The only unit i have is from the Used batch, i wrote my more detailed findings in my Review. https://bitcointalk.org/index.php?topic=1151326.0

[philipma1957]

what is your internet connection?

Sounds like your net connection is dropping out.  (since the psu's you use should be good)

Also did you  over clock or  use standard clock.

I have 2MBPS connection.

If internet connection is dropping out shouldn't all miners decrease their hashrate?

all miners are at default frecuency.

At first i thought the miner had a problem, but with all of them? different PSUs? my friends miners at his house suffer the same thing.

Why would a blade shut down (Red led goes off and Temperature decrease to 30-32 C)

sorry but I meant hard wired or wireless.

 you have hard wired and pretty slow one.  do you run other gear on that internet connection?

if you watch a 1080p or a 720p video on the net connection of 2mbps while mining you may drop out  a miner. 

wifi connects can have issues. not your case


 a slow switch can drop 1 board..




so modem(2mbps) to (switch) how many ports?  and are the ports 10 or 100 or 1000 speed.





if you are modem>>>(cat 5 wire)>>>8 port switch>>>> s-5's and a pc  it may work better then

modem
 1)one port direct to pc
2) one port to switch
3)switch to 5 or so s-5's

in the case of pc not on shared switch watching a movie could take too much bandwidth from the switche's ports

[gerardo15]

what is your internet connection?

Sounds like your net connection is dropping out.  (since the psu's you use should be good)

Also did you  over clock or  use standard clock.

I have 2MBPS connection.

If internet connection is dropping out shouldn't all miners decrease their hashrate?

all miners are at default frecuency.

At first i thought the miner had a problem, but with all of them? different PSUs? my friends miners at his house suffer the same thing.

Why would a blade shut down (Red led goes off and Temperature decrease to 30-32 C)

sorry but I meant hard wired or wireless.

 you have hard wired and pretty slow one.  do you run other gear on that internet connection?

if you watch a 1080p or a 720p video on the net connection of 2mbps while mining you may drop out  a miner. 

wifi connects can have issues. not your case


 a slow switch can drop 1 board..




so modem(2mbps) to (switch) how many ports?  and are the ports 10 or 100 or 1000 speed.





if you are modem>>>(cat 5 wire)>>>8 port switch>>>> s-5's and a pc  it may work better then

modem
 1)one port direct to pc
2) one port to switch
3)switch to 5 or so s-5's

in the case of pc not on shared switch watching a movie could take too much bandwidth from the switche's ports

My configuration is like this

Modem>>Router TP-Link (This is where all the devices in my house connect to)>>>>>>Switch (8 port 10/100)>>> Miners

I never thought that one blade could stop working because of this? why always the same blade.. (left one) in all miners.

[philipma1957]

what is your internet connection?

Sounds like your net connection is dropping out.  (since the psu's you use should be good)

Also did you  over clock or  use standard clock.

I have 2MBPS connection.

If internet connection is dropping out shouldn't all miners decrease their hashrate?

all miners are at default frecuency.

At first i thought the miner had a problem, but with all of them? different PSUs? my friends miners at his house suffer the same thing.

Why would a blade shut down (Red led goes off and Temperature decrease to 30-32 C)

sorry but I meant hard wired or wireless.

 you have hard wired and pretty slow one.  do you run other gear on that internet connection?

if you watch a 1080p or a 720p video on the net connection of 2mbps while mining you may drop out  a miner.  

wifi connects can have issues. not your case


 a slow switch can drop 1 board..




so modem(2mbps) to (switch) how many ports?  and are the ports 10 or 100 or 1000 speed.





if you are modem>>>(cat 5 wire)>>>8 port switch>>>> s-5's and a pc  it may work better then

modem
 1)one port direct to pc
2) one port to switch
3)switch to 5 or so s-5's

in the case of pc not on shared switch watching a movie could take too much bandwidth from the switche's ports

My configuration is like this

Modem>>Router TP-Link (This is where all the devices in my house connect to)>>>>>>Switch (8 port 10/100)>>> Miners

I never thought that one blade could stop working because of this? why always the same blade.. (left one) in all miners.

the 8 port switch may prioritize its ports and if you get short bandwidth it cuts it to the port for that 1 miner.

Or a shit board on that miner or a bad cat 5 wire.

but the fact that it is always the same board is good.
-------------------------------------------------------------------------------------------------------------------
First test is this
we can narrow this down I hope.

take the cat 5 cable out of the miner that drops its board.

lets call that miner bad-boy

take the cat-5 cable out of the miner that never drops it board lets call it good boy.

 if problem moves to  good-boy miner then > bad switch port/ short band width / bad cable

 and if the problem still occurs in bad-boy   we have eliminated short bandwidth and bad ethernet cable or bad port switch

 
----------------------------------------------------------------------------------------------------------------------------------------
we then test this below

we have narrowed the problem down to
1)bad board
2)bad controller
3)bad cable that connects board to controller.
4) the board is good the cable is good and that port on the controller is bad------------------this is something you can fix

[gerardo15]

what is your internet connection?

Sounds like your net connection is dropping out.  (since the psu's you use should be good)

Also did you  over clock or  use standard clock.

I have 2MBPS connection.

If internet connection is dropping out shouldn't all miners decrease their hashrate?

all miners are at default frecuency.

At first i thought the miner had a problem, but with all of them? different PSUs? my friends miners at his house suffer the same thing.

Why would a blade shut down (Red led goes off and Temperature decrease to 30-32 C)

sorry but I meant hard wired or wireless.

 you have hard wired and pretty slow one.  do you run other gear on that internet connection?

if you watch a 1080p or a 720p video on the net connection of 2mbps while mining you may drop out  a miner.  

wifi connects can have issues. not your case


 a slow switch can drop 1 board..




so modem(2mbps) to (switch) how many ports?  and are the ports 10 or 100 or 1000 speed.





if you are modem>>>(cat 5 wire)>>>8 port switch>>>> s-5's and a pc  it may work better then

modem
 1)one port direct to pc
2) one port to switch
3)switch to 5 or so s-5's

in the case of pc not on shared switch watching a movie could take too much bandwidth from the switche's ports

My configuration is like this

Modem>>Router TP-Link (This is where all the devices in my house connect to)>>>>>>Switch (8 port 10/100)>>> Miners

I never thought that one blade could stop working because of this? why always the same blade.. (left one) in all miners.

the 8 port switch may prioritize its ports and if you get short bandwidth it cuts it to the port for that 1 miner.

Or a shit board on that miner or a bad cat 5 wire.

but the fact that it is always the same board is good.
-------------------------------------------------------------------------------------------------------------------
First test is this
we can narrow this down I hope.

take the cat 5 cable out of the miner that drops its board.

lets call that miner bad-boy

take the cat-5 cable out of the miner that never drops it board lets call it good boy.

 if problem moves to  good-boy miner then > bad switch port/ short band width / bad cable

 and if the problem still occurs in bad-boy   we have eliminated short bandwidth and bad ethernet cable or bad port switch

 
----------------------------------------------------------------------------------------------------------------------------------------
we then test this below

we have narrowed the problem down to
1)bad board
2)bad controller
3)bad cable that connects board to controller.
4) the board is good the cable is good and that port on the controller is bad------------------this is something you can fix

Ok yesterday there was a power outage, as soon as power came back after 5 minutes of miners working 3 of them started to do so one after the other.

Is there any way to confirm if its a network problem. so if its how can i solve it? getting new router? getting new swtich? upgrading my internet conection?

[BTC_ISTANBUL]

I recommend you to use a Gigabit switch.This will solve your problem.However, if you like in Eastern Europe your internet connection may be lower then your theorotical speed.If you connect 10 machines (even switch has 12 or 24 ports) one of your miners may be off.

If your miner loses internet connection it may reach high temperature due to fan is not in charge.You may loose one or both boards.

If a board is broken or not hashing you can PM me and I can describe how to check the board.

 

[Tupsu]

I recommend you to use a Gigabit switch.This will solve your problem.However, if you like in Eastern Europe your internet connection may be lower then your theorotical speed.If you connect 10 machines (even switch has 12 or 24 ports) one of your miners may be off.

If your miner loses internet connection it may reach high temperature due to fan is not in charge.You may loose one or both boards.

If a board is broken or not hashing you can PM me and I can describe how to check the board.

 

If you're so good, you will definitely know, what is wrong with this S5 blade.

Miner is water-cooled,  It is only this blade connected to  the controller board.

Other blade is mining at the same time with different controller at normal speed.

 Each controller has its own fan, and a 4 pin power cord.

The same behavior was also  than miner was air-cooled.

[MarkAz]

If you're so good, you will definitely know, what is wrong with this S5 blade.

Miner is water-cooled,  It is only this blade connected to  the controller board.

Other blade is mining at the same time with different controller at normal speed.

 Each controller has its own fan, and a 4 pin power cord.

The same behavior was also  than miner was air-cooled.

Wow Tupsu, your hardware error rate is really high, especially considering the temp and clock - are you using the stock cables between the controller and the blades?  I know with the water cooling kit you have to extend those, and my first thought would be that something is wrong on that end - but if it was exhibiting that behavior before, then it could very well be the blade.

If you have a couple S5's, then try swapping the BB/controller, and see if that makes a difference - on one of my S5's, it was getting really high error rates, and when I swapped BB's, the error rates followed it.  Ended up just getting a replacement BB from Bitmain and it's been working fine.  Basically I've found the best way to troubleshoot this stuff is just to swap the parts around - just make sure not to get them mixed up and confused.  Since everything is pretty interchangeable, it usually doesn't take too long.

[Tupsu]

Wow Tupsu, your hardware error rate is really high, especially considering the temp and clock - are you using the stock cables between the controller and the blades?  I know with the water cooling kit you have to extend those, and my first thought would be that something is wrong on that end - but if it was exhibiting that behavior before, then it could very well be the blade.

If you have a couple S5's, then try swapping the BB/controller, and see if that makes a difference - on one of my S5's, it was getting really high error rates, and when I swapped BB's, the error rates followed it.  Ended up just getting a replacement BB from Bitmain and it's been working fine.  Basically I've found the best way to troubleshoot this stuff is just to swap the parts around - just make sure not to get them mixed up and confused.  Since everything is pretty interchangeable, it usually doesn't take too long.

I have changed the cables and controllers.  (16 pin controllers) Error rate coming  together with blade.

The second blade error rate is

only 954   
time 1d 4h 27m 7s
at freg  381.25
hashing speed average 626.40Gh/s

So totally with 2 controllers is it at normal S5 speed
540.14 +626.40=1166 GH/s