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Thanks again
Topic: S7 power problem (Read 2175 times)
Thanks again
To save searching the thread for how-to (is on p5) direct link to it https://bitcointalksearch.org/topic/m.15298837
Ok i identified the problem, was 1 of the 3 cards
I switched the bb board and the io board and the miner hanged up after 1 min, then i removed all the boards, and plugged just 1, everything was fine, the s7 was mining ok, then i inserted the 2nd board the miner hanged up after 50-70 seconds, i removed the 2nd board and inserted the 3rd board, and everything is running smooth now
So 1 of the 3 boards is making the miner hang up, dont know why, the miner was new, it only worked for 5 days
Are you handy with a PIC programmer? As a shot in the dark, the 1min delay suggests that is related to the lower Hot Vcore voltage applied after the chips are warmed up after the initial (and higher) Vcore is applied -- for 1 minute -- to get them near normal operating temps.I switched the bb board and the io board and the miner hanged up after 1 min, then i removed all the boards, and plugged just 1, everything was fine, the s7 was mining ok, then i inserted the 2nd board the miner hanged up after 50-70 seconds, i removed the 2nd board and inserted the 3rd board, and everything is running smooth now
So 1 of the 3 boards is making the miner hang up, dont know why, the miner was new, it only worked for 5 days
Use Sidehacks instruction for undervolting the s7 but instead play with different higher power settings.
https://bitcointalksearch.org/topic/m.15133282
Thanks Man, will check that
Ok i identified the problem, was 1 of the 3 cards
I switched the bb board and the io board and the miner hanged up after 1 min, then i removed all the boards, and plugged just 1, everything was fine, the s7 was mining ok, then i inserted the 2nd board the miner hanged up after 50-70 seconds, i removed the 2nd board and inserted the 3rd board, and everything is running smooth now
So 1 of the 3 boards is making the miner hang up, dont know why, the miner was new, it only worked for 5 days
Are you handy with a PIC programmer? As a shot in the dark, the 1min delay suggests that is related to the lower Hot Vcore voltage applied after the chips are warmed up after the initial (and higher) Vcore is applied -- for 1 minute -- to get them near normal operating temps.I switched the bb board and the io board and the miner hanged up after 1 min, then i removed all the boards, and plugged just 1, everything was fine, the s7 was mining ok, then i inserted the 2nd board the miner hanged up after 50-70 seconds, i removed the 2nd board and inserted the 3rd board, and everything is running smooth now
So 1 of the 3 boards is making the miner hang up, dont know why, the miner was new, it only worked for 5 days
Use Sidehacks instruction for undervolting the s7 but instead play with different higher power settings.
https://bitcointalksearch.org/topic/m.15133282
Ok i identified the problem, was 1 of the 3 cards
I switched the bb board and the io board and the miner hanged up after 1 min, then i removed all the boards, and plugged just 1, everything was fine, the s7 was mining ok, then i inserted the 2nd board the miner hanged up after 50-70 seconds, i removed the 2nd board and inserted the 3rd board, and everything is running smooth now
So 1 of the 3 boards is making the miner hang up, dont know why, the miner was new, it only worked for 5 days
I switched the bb board and the io board and the miner hanged up after 1 min, then i removed all the boards, and plugged just 1, everything was fine, the s7 was mining ok, then i inserted the 2nd board the miner hanged up after 50-70 seconds, i removed the 2nd board and inserted the 3rd board, and everything is running smooth now
So 1 of the 3 boards is making the miner hang up, dont know why, the miner was new, it only worked for 5 days
main page screenshot and "miner status" screen shot and possibly the LED light indicator photo or cellphone video?
Its either something simple or hash PCB may be damaged. also, please take picture of the fan connector area.
Its either something simple or hash PCB may be damaged. also, please take picture of the fan connector area.
Guys i switched the bb board and the io board from another miner and im having the same problem, miner start just fine, but wont wine at all, any suggestion?
i ended up buying 3 psu from parallelminer and seems to be working ok, i received 2 of the 4 damaged psu today, repair costs were almost 40$
Anyway, thanks everybody
In a related topic im having problems with 1 s7 batch 16 (1 fan cooler), it was working good until today, the red light is on, cant seem to access the miner, and wont hash, the boards light wont light on, any suggestion?
Anyway, thanks everybody
In a related topic im having problems with 1 s7 batch 16 (1 fan cooler), it was working good until today, the red light is on, cant seem to access the miner, and wont hash, the boards light wont light on, any suggestion?
Sounds like possibly a controller issue which is not much fun. The one fan unit's actually did much better then I expected and ran well, but just out of curiosity what is the fan doing still working? As it is summer some places a fan failure could not be good.
But checking networking to unit make sure it works fine, can hook a laptop up to cable to test it. Assuming it works then again back to controller which most likely you will buy another to stick on it. Although some might flash it via serial I have never had to do this yet myself.
i ended up buying 3 psu from parallelminer and seems to be working ok, i received 2 of the 4 damaged psu today, repair costs were almost 40$
Anyway, thanks everybody
In a related topic im having problems with 1 s7 batch 16 (1 fan cooler), it was working good until today, the red light is on, cant seem to access the miner, and wont hash, the boards light wont light on, any suggestion?
Anyway, thanks everybody
In a related topic im having problems with 1 s7 batch 16 (1 fan cooler), it was working good until today, the red light is on, cant seem to access the miner, and wont hash, the boards light wont light on, any suggestion?
Sounds like possibly a controller issue which is not much fun. The one fan unit's actually did much better then I expected and ran well, but just out of curiosity what is the fan doing still working? As it is summer some places a fan failure could not be good.
But checking networking to unit make sure it works fine, can hook a laptop up to cable to test it. Assuming it works then again back to controller which most likely you will buy another to stick on it. Although some might flash it via serial I have never had to do this yet myself.
i ended up buying 3 psu from parallelminer and seems to be working ok, i received 2 of the 4 damaged psu today, repair costs were almost 40$
Anyway, thanks everybody
In a related topic im having problems with 1 s7 batch 16 (1 fan cooler), it was working good until today, the red light is on, cant seem to access the miner, and wont hash, the boards light wont light on, any suggestion?
Anyway, thanks everybody
In a related topic im having problems with 1 s7 batch 16 (1 fan cooler), it was working good until today, the red light is on, cant seem to access the miner, and wont hash, the boards light wont light on, any suggestion?
You could check the "Marketplace - Goods" section on this forum to see if you can get a S7 at a good price. Or maybe place an ad there, stating how much you'll pay for a S7.
If you need replacement PSUs I can hook you up. The best thing I have right now would require 208/240V. I don't have any S7 boards up for grabs at present though, sorry.
Ok guys, all miners seems to be working 
, 9 miners, only 2 seems to be having problems with 1 hashboard, and only 1 of those 2 have a big problem with 1 hashboard, you can check the image!
4 Psu wont start, but seems to be fixable, and one psu start but it seems it wont give any voltage on the pcie cables
(picture above)
, 9 miners, only 2 seems to be having problems with 1 hashboard, and only 1 of those 2 have a big problem with 1 hashboard, you can check the image!4 Psu wont start, but seems to be fixable, and one psu start but it seems it wont give any voltage on the pcie cables
(picture above)
That is one of the worst damaged boards that I have seen that was not on fire. One heatsink falling off can damage a board. And seeing damaged boards with some heatsinks off and some moved I don't think it is going to be fixable. How much water got on these miners and PSU's?
What part on PSU are you thinking will be fixable? I just think water going through them most likely is catastrophic failure you don't come back from. I hope I'm wrong and you can fix them though.
You are probably right about the damaged board, about the psu ill let you know if it is fixable!
Ok guys, all miners seems to be working , 9 miners, only 2 seems to be having problems with 1 hashboard, and only 1 of those 2 have a big problem with 1 hashboard, you can check the image!
4 Psu wont start, but seems to be fixable, and one psu start but it seems it wont give any voltage on the pcie cables
(picture above)
, 9 miners, only 2 seems to be having problems with 1 hashboard, and only 1 of those 2 have a big problem with 1 hashboard, you can check the image!4 Psu wont start, but seems to be fixable, and one psu start but it seems it wont give any voltage on the pcie cables
(picture above)
That is one of the worst damaged boards that I have seen that was not on fire. One heatsink falling off can damage a board. And seeing damaged boards with some heatsinks off and some moved I don't think it is going to be fixable. How much water got on these miners and PSU's?
What part on PSU are you thinking will be fixable? I just think water going through them most likely is catastrophic failure you don't come back from. I hope I'm wrong and you can fix them though.
Ok guys, all miners seems to be working , 9 miners, only 2 seems to be having problems with 1 hashboard, and only 1 of those 2 have a big problem with 1 hashboard, you can check the image!
4 Psu wont start, but seems to be fixable, and one psu start but it seems it wont give any voltage on the pcie cables
, 9 miners, only 2 seems to be having problems with 1 hashboard, and only 1 of those 2 have a big problem with 1 hashboard, you can check the image!4 Psu wont start, but seems to be fixable, and one psu start but it seems it wont give any voltage on the pcie cables
That board definitely looks broken, I'd probably ask someone like sidehack who speciallise in asic equipment for suggestions.
You coud always purchase another BB board.
Also, if the PSUs are unfixable or hard to fix, you'll have to purchase new ones though you can probably get them cheaply from sites like ebay!
Ok guys, all miners seems to be working , 9 miners, only 2 seems to be having problems with 1 hashboard, and only 1 of those 2 have a big problem with 1 hashboard, you can check the image!
4 Psu wont start, but seems to be fixable, and one psu start but it seems it wont give any voltage on the pcie cables
http://i289.photobucket.com/albums/ll210/chudm/IMG-20160718-WA0043_zps0eswbpnz.jpg
, 9 miners, only 2 seems to be having problems with 1 hashboard, and only 1 of those 2 have a big problem with 1 hashboard, you can check the image!4 Psu wont start, but seems to be fixable, and one psu start but it seems it wont give any voltage on the pcie cables
http://i289.photobucket.com/albums/ll210/chudm/IMG-20160718-WA0043_zps0eswbpnz.jpg
Make sure in your piecewise testing that you isolate whether it's the IO board or the BBB itself, since the two are separate boards that socket together. If the BBB crapped out, I can hook you up with a replacement for pretty cheap. I don't have any spare IO boards though.
It is unusual that water would cause problems to the electronic equipment (it usually doesn't)!
Look to replace the part of the S7 that you feel had the most damage from the water (if the BB boards are enclosed in the unit, then it was probably the control computer)!
Unless this was a liquid cooler then I'd ask why you had it close to the electronic equipment anyway?
(also, if you have another S7 then test out the BB board and control computer on them to see if they work or not)!
Look to replace the part of the S7 that you feel had the most damage from the water (if the BB boards are enclosed in the unit, then it was probably the control computer)!
Unless this was a liquid cooler then I'd ask why you had it close to the electronic equipment anyway?
(also, if you have another S7 then test out the BB board and control computer on them to see if they work or not)!
Yep, the bb board was enclosed in the unit, ill follow you advise, and will test the io board and the bb board, i tested the whole system (bb board and the io board), ill do that right away
What do you suggest about the power supply? It doesnt start
It is honestly hard to say as water was introduced to the miner and PSU it sounds like from above store. Even condensation could be bad overtime, really bad and will kill miners.
Just to have water go through your S7 and PSU's it's hard to say what all is wrong. Electricity and water never mix, so adding a S7 in the mix is horrible on the unit. It would not surprise me if it is something you have to send in to see if they can be fixed. And with the water I'm not sure I would be to positive they might be gone.
Only thing for sure we can tell you is from now on NEVER mine where water can be an issue.
Yep i know that, the problem was with a leakage from the neighbors, the water leak was from them, it seems i swaped the bb boards and io boards and the miners started just fine, but i got 3 psu not starting
i thought about a bad fuse, but couldnt see one, thanksPSU's should have a fuse in them. Sounds like you've opened it up already. PSUs look deceptively simple hardware wise but troubleshooting them can be a pain in the behind. I've never fixed a PSU apart from replacing a fuse and those that I've talked to recommend replacing it. The advantage, if you still want to fix it yourself, is that the soldering/unsoldering is much easier than the microelectronics components on the mining boards itself so is completely doable. Hopefully someone else on the forums will have the right expertise.
Correct, this would be my answer that the PSU has had a fuse blown
However, the "blown" fuse, I'd use lightly as it is probably a resettable fuse such as a relay which can easily be switched back on. These will switch back on when energy starts to flow through the entire unit and it is returned back o the PSU and plug socket.
I'd again suggest that this is tested with another miner, if it doesn't work with the other miner, throw it away (unless you know what you are doing) as you could risk your safety trying to fix that or even cause a power serge i the S7s are in a close area (a 1300-2000W spark may shift from the miner to another miner and cause great damage to both if one of the wires in the PSU are exposed - or the spark could hit you or a flamable item in your "farm")!
Some psu wont start, and some miners wont start either, today i swaped some of the bb boards and io board, and now some of the s7 are running fine, but i got 2 that wont start at all
Get two miners that are working and put the psu on the miners that aren't working into them first.
Then try changing some of the parts between them (try changing the control computers first.
In fact, grab one of your miners and two signal cables and connect all three to the control computer in order to test that (afaik the control computer is the io board).
Each control computer can take up to 3 S7s in it as far as I emember (that will also increase efficiency)!
@sidehack - it depends where he is locationwise as to if it is cheaper to use you or not as a seller as there are some located in the EU/asia and other places that may be closer. Thoug, if he is in the USA or Caada then you are probably the best option!
It is unusual that water would cause problems to the electronic equipment (it usually doesn't)!
Look to replace the part of the S7 that you feel had the most damage from the water (if the BB boards are enclosed in the unit, then it was probably the control computer)!
Unless this was a liquid cooler then I'd ask why you had it close to the electronic equipment anyway?
(also, if you have another S7 then test out the BB board and control computer on them to see if they work or not)!
Look to replace the part of the S7 that you feel had the most damage from the water (if the BB boards are enclosed in the unit, then it was probably the control computer)!
Unless this was a liquid cooler then I'd ask why you had it close to the electronic equipment anyway?
(also, if you have another S7 then test out the BB board and control computer on them to see if they work or not)!
Yep, the bb board was enclosed in the unit, ill follow you advise, and will test the io board and the bb board, i tested the whole system (bb board and the io board), ill do that right away
What do you suggest about the power supply? It doesnt start
It is honestly hard to say as water was introduced to the miner and PSU it sounds like from above store. Even condensation could be bad overtime, really bad and will kill miners.
Just to have water go through your S7 and PSU's it's hard to say what all is wrong. Electricity and water never mix, so adding a S7 in the mix is horrible on the unit. It would not surprise me if it is something you have to send in to see if they can be fixed. And with the water I'm not sure I would be to positive they might be gone.
Only thing for sure we can tell you is from now on NEVER mine where water can be an issue.
Yep i know that, the problem was with a leakage from the neighbors, the water leak was from them, it seems i swaped the bb boards and io boards and the miners started just fine, but i got 3 psu not starting
i thought about a bad fuse, but couldnt see one, thanksPSU's should have a fuse in them. Sounds like you've opened it up already. PSUs look deceptively simple hardware wise but troubleshooting them can be a pain in the behind. I've never fixed a PSU apart from replacing a fuse and those that I've talked to recommend replacing it. The advantage, if you still want to fix it yourself, is that the soldering/unsoldering is much easier than the microelectronics components on the mining boards itself so is completely doable. Hopefully someone else on the forums will have the right expertise.
Correct, this would be my answer that the PSU has had a fuse blown
However, the "blown" fuse, I'd use lightly as it is probably a resettable fuse such as a relay which can easily be switched back on. These will switch back on when energy starts to flow through the entire unit and it is returned back o the PSU and plug socket.
I'd again suggest that this is tested with another miner, if it doesn't work with the other miner, throw it away (unless you know what you are doing) as you could risk your safety trying to fix that or even cause a power serge i the S7s are in a close area (a 1300-2000W spark may shift from the miner to another miner and cause great damage to both if one of the wires in the PSU are exposed - or the spark could hit you or a flamable item in your "farm")!
Some psu wont start, and some miners wont start either, today i swaped some of the bb boards and io board, and now some of the s7 are running fine, but i got 2 that wont start at all
Quote
Correct, this would be my answer that the PSU has had a fuse blown
However, the "blown" fuse, I'd use lightly as it is probably a resettable fuse such as a relay which can easily be switched back on. These will switch back on when energy starts to flow through the entire unit and it is returned back o the PSU and plug socket.
I'd again suggest that this is tested with another miner, if it doesn't work with the other miner, throw it away (unless you know what you are doing) as you could risk your safety trying to fix that or even cause a power serge i the S7s are in a close area (a 1300-2000W spark may shift from the miner to another miner and cause great damage to both if one of the wires in the PSU are exposed - or the spark could hit you or a flamable item in your "farm")!
However, the "blown" fuse, I'd use lightly as it is probably a resettable fuse such as a relay which can easily be switched back on. These will switch back on when energy starts to flow through the entire unit and it is returned back o the PSU and plug socket.
I'd again suggest that this is tested with another miner, if it doesn't work with the other miner, throw it away (unless you know what you are doing) as you could risk your safety trying to fix that or even cause a power serge i the S7s are in a close area (a 1300-2000W spark may shift from the miner to another miner and cause great damage to both if one of the wires in the PSU are exposed - or the spark could hit you or a flamable item in your "farm")!
Interesting. Do the newer PSUs have this resettable fuse? Neat. I don't make it a habit of opening them up so haven't seen one
. The one I did open up had the old style fuse. I opened it up coz I didn't know I had to wire the Earth together to make it actually turn on in the first place. Good old rookie mistake there. Jump to: