Another miner lost to ashes...
The miner is on the eternal silicon fields now, it finally got rest.
R.I.P.
Topic: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s - page 20. (Read 787016 times)
The miner is on the eternal silicon fields now, it finally got rest.
R.I.P.
Another miner lost to ashes...
sorry for your loss
Another miner lost to ashes...
@bobsag3 Dear Matt, you have been answering us well, thank you! But since the 29th of August we believe you have been very busy, but we need you to answer our emails!
Thank you!
Thank you!
I've been waiting for a promised refund from Minersource for more then 6 months now. They gladly take your money and ignore the laws of their own country.
Never ever again with BA.
An electric heater cannot catch fire. However, it can START one. Same goes for anything else if it gets hot enough, including a badly designed miner.
However having the actual unit catch fire and light other things on fire is not possible.
best just be safe. don't power up.
An electric heater cannot catch fire. However, it can START one. Same goes for anything else if it gets hot enough, including a badly designed miner.
The guy who originally had the fire was due to the blown caps. They removed the caps from shipping units. The current reason the units burn out is apparently due to a bad mosfet that causes a short which then melts the connector between the hash board and the backplane. The components here aren't "burning".
In truth, any electronic component can catch on fire. Take some lighter fluid and pour it into the case and toss a match in there. Flames!
Ultimately what David was saying is that the internals do not create flames. They do however release toxic fumes that will cause you to grow a third eye on the palm of your hand. Which is fun at parties...
In truth, any electronic component can catch on fire. Take some lighter fluid and pour it into the case and toss a match in there. Flames!
Ultimately what David was saying is that the internals do not create flames. They do however release toxic fumes that will cause you to grow a third eye on the palm of your hand. Which is fun at parties...
oh, that's OK then 
your miners MELT.
your miners MELT.Just to be clear. I am not saying it is ok that they melt. It is a very serious problem and frankly unacceptable. However having the actual unit catch fire and light other things on fire is not possible.
and if it ever does, what will be your statement then? i'm unsure if your statement above shows ignorance, lack of knowledge, or simple criminal negligence.
You know who i fear for? it's those people who have received units and have listed them on ebay, knowing full well that by doing so, they are endangering the lives of those who buy them. Just as Black Arrow have endangered the lives of those who purchased from them in the first place.
if there is propensity for the units' parts to melt, then there is also propensity for them to set on fire. the pictures already posted on this thread show scorch marks, and not melted components. Scorch marks are an after effect of overheating, as are flames. I will go so far to say that your ignorance is deceiving people into thinking that there is no way these units will ever produce a flame when they overheat. I will also go so far to say, that the propensity to catch fire, is there.
you cannot spin it any other way - The overheating of components HAS the propensity to catch fire. It's as simple as that.
I tuned into this thread again to see how the BA fire boxes were going... seems there is no shortage of smoke or fire and that these units are probably the worst miners ever made. Lucky that you were home and awake when the units caught fire, could have been a terrible story otherwise.
Please note that the materials used to build these miners are fire resistant. The worst they can do is melt, which is what is show in the pictures above.
oh, that's OK then
your miners MELT.Like a Nuclear reactor!!!!
oh, that's OK then your miners MELT.
your miners MELT.Just to be clear. I am not saying it is ok that they melt. It is a very serious problem and frankly unacceptable. However having the actual unit catch fire and light other things on fire is not possible.
I tuned into this thread again to see how the BA fire boxes were going... seems there is no shortage of smoke or fire and that these units are probably the worst miners ever made. Lucky that you were home and awake when the units caught fire, could have been a terrible story otherwise.
Please note that the materials used to build these miners are fire resistant. The worst they can do is melt, which is what is show in the pictures above.
oh, that's OK then
your miners MELT. I tuned into this thread again to see how the BA fire boxes were going... seems there is no shortage of smoke or fire and that these units are probably the worst miners ever made. Lucky that you were home and awake when the units caught fire, could have been a terrible story otherwise.
Please note that the materials used to build these miners are fire resistant. The worst they can do is melt, which is what is show in the pictures above.
So I recently purchased some X3 Units, and 2/4 boxes burnt down. One was burnt to complete rubbish (picture below), worst part was the blade was burnt from one end to the other so the machine stayed on causing quiet the smoke and an awful smell of burnt plastic, spoiled eggs, and burnt electronics. LUCKILY I was home..I was able to unplug em and throw the unit outside in my shed.
As for my second unit, it kept going on and off and hashing extremely low. The smell of burnt plastic kept coming and going. Opened it up and saw it begging to blacken/char on the metal of the blade; needless to say I threw it outside as well as the major fire hazard wasn't worth the cost of my home and my other mining gear or better yet my life.
Neither of the units were at default frequency; in fact all my units were under clocked and on its own dedicated 20 amp breaker.
So yeah..not sure I'll be using Black Arrow products anymore.
As for my second unit, it kept going on and off and hashing extremely low. The smell of burnt plastic kept coming and going. Opened it up and saw it begging to blacken/char on the metal of the blade; needless to say I threw it outside as well as the major fire hazard wasn't worth the cost of my home and my other mining gear or better yet my life.
Neither of the units were at default frequency; in fact all my units were under clocked and on its own dedicated 20 amp breaker.
So yeah..not sure I'll be using Black Arrow products anymore.
I tuned into this thread again to see how the BA fire boxes were going... seems there is no shortage of smoke or fire and that these units are probably the worst miners ever made. Lucky that you were home and awake when the units caught fire, could have been a terrible story otherwise.
I thought there was a video some where from BA showing/saying to break off those capacitors on that board. I could be wrong. I'll see if I can find it.
Those were the green caps that were at fault.
This pics do not show them and it looks like it's a newer revision.
Wondering if that hashboard is faulty, in which case it can be pulled.
i've got a better idea.
don't plug it in.
I thought there was a video some where from BA showing/saying to break off those capacitors on that board. I could be wrong. I'll see if I can find it.
Those were the green caps that were at fault.
This pics do not show them and it looks like it's a newer revision.
Wondering if that hashboard is faulty, in which case it can be pulled.
I thought there was a video some where from BA showing/saying to break off those capacitors on that board. I could be wrong. I'll see if I can find it.
You mean this one
https://www.youtube.com/watch?v=564-sYaXYfI#t=45
Don't forget to add to the comments section while your there
I thought there was a video some where from BA showing/saying to break off those capacitors on that board. I could be wrong. I'll see if I can find it.
So I recently purchased some X3 Units, and 2/4 boxes burnt down. One was burnt to complete rubbish (picture below), worst part was the blade was burnt from one end to the other so the machine stayed on causing quiet the smoke and an awful smell of burnt plastic, spoiled eggs, and burnt electronics. LUCKILY I was home..I was able to unplug em and throw the unit outside in my shed.
As for my second unit, it kept going on and off and hashing extremely low. The smell of burnt plastic kept coming and going. Opened it up and saw it begging to blacken/char on the metal of the blade; needless to say I threw it outside as well as the major fire hazard wasn't worth the cost of my home and my other mining gear or better yet my life.
Neither of the units were at default frequency; in fact all my units were under clocked and on its own dedicated 20 amp breaker.
So yeah..not sure I'll be using Black Arrow products anymore.
As for my second unit, it kept going on and off and hashing extremely low. The smell of burnt plastic kept coming and going. Opened it up and saw it begging to blacken/char on the metal of the blade; needless to say I threw it outside as well as the major fire hazard wasn't worth the cost of my home and my other mining gear or better yet my life.
Neither of the units were at default frequency; in fact all my units were under clocked and on its own dedicated 20 amp breaker.
So yeah..not sure I'll be using Black Arrow products anymore.
What for a mess.
They know/knew about this fault:
blackarrow, on 14 Nov 2014 - 11:39 AM, said:
They promised they would e-mail all the affected customers immediately, but apparently that's just another broken promise from them.
Assholes.
blackarrow, on 14 Nov 2014 - 11:39 AM, said:
Quote
In the last few days there have been increasing reports of X3 units that have failed during hashing.
We have now located this issue: It has been introduced by a part that we have used in our latest shipped batch (shipped between 20 Oct to 13 Nov). All miners affected by this problem have a barcode sticker (picture will be posted here:http://www.blackarro...y_hashboard.jpg. We are currently sending individual emails to all customers that we believe that are affected. If you have not received an email but are concerned that your miner is affected, please open it and check if your hashboard has such sticker. If your miner is affected, please stop using it immediately. If you do not stop using your miner there is a very high possibility that one or more hashboards will burn. We are now testing new hashboards in which we believe that we have solved the problem. We will send new hashboards to all customers as soon as tests are conclusive. Alternatively we can make arrangements to host your miner in our partner's datacenter in China that charges an all-inclusive fee.
We are deeply sorry for the inconvenience.
Technical details: On the latest batch of miners we started to use a different mosfet because of higher efficiency and better sourcing availability. However, to achieve this efficiency this mosfet lacks a diode that protects it from short circuiting the 12V with GND in case there's a wrong message received from the controller. A wrong message can only be caused by the noise in the circuit or by a faulty controller. We have encountered this issue back in May but we have been working with Vishay (the manufacturer) to fix it. Initially, when we found the issue, we wanted to return the chips but Vishay declined to take them back claiming that they are considered safe to be used in consumer electronics and Sony is using them in PS4. Upon applying the changes in our design based on their advice and after testing more than 20 miners we believed that the problem has been solved and started manufacturing miners with these chips. However, it turns out that the problem is still there and in some unknown cases it happens and the mosfet burns, causing a short circuit which heats up the board and sometimes melts the PCIE connector.
We have now located this issue: It has been introduced by a part that we have used in our latest shipped batch (shipped between 20 Oct to 13 Nov). All miners affected by this problem have a barcode sticker (picture will be posted here:http://www.blackarro...y_hashboard.jpg. We are currently sending individual emails to all customers that we believe that are affected. If you have not received an email but are concerned that your miner is affected, please open it and check if your hashboard has such sticker. If your miner is affected, please stop using it immediately. If you do not stop using your miner there is a very high possibility that one or more hashboards will burn. We are now testing new hashboards in which we believe that we have solved the problem. We will send new hashboards to all customers as soon as tests are conclusive. Alternatively we can make arrangements to host your miner in our partner's datacenter in China that charges an all-inclusive fee.
We are deeply sorry for the inconvenience.
Technical details: On the latest batch of miners we started to use a different mosfet because of higher efficiency and better sourcing availability. However, to achieve this efficiency this mosfet lacks a diode that protects it from short circuiting the 12V with GND in case there's a wrong message received from the controller. A wrong message can only be caused by the noise in the circuit or by a faulty controller. We have encountered this issue back in May but we have been working with Vishay (the manufacturer) to fix it. Initially, when we found the issue, we wanted to return the chips but Vishay declined to take them back claiming that they are considered safe to be used in consumer electronics and Sony is using them in PS4. Upon applying the changes in our design based on their advice and after testing more than 20 miners we believed that the problem has been solved and started manufacturing miners with these chips. However, it turns out that the problem is still there and in some unknown cases it happens and the mosfet burns, causing a short circuit which heats up the board and sometimes melts the PCIE connector.
They promised they would e-mail all the affected customers immediately, but apparently that's just another broken promise from them.
Assholes.
"we are deeply sorry for the inadvertent manslaughter of your wife and children. email us."
assholes.
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