scyth33
Member
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Activity: 99
Merit: 10
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November 05, 2015, 03:10:53 PM |
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has anyone gotten cron to work? the file (/var/spool/cron/root) would revert back to the default after rebooting the miner
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DarKSm0ke
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November 06, 2015, 06:01:42 PM |
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Hello Guys,
I have some issues with my S5. I have sent board to Bitmain RMA and when they came back after putting them together and starting the miner, all asic are detected but it won't stop mining.
Even after multiple resets to default setting, lowering clock frequency etc..
Do you have an idea what can be the cause and how to make it mine again?
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sloopy
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November 07, 2015, 12:19:21 AM |
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Hello Guys,
I have some issues with my S5. I have sent board to Bitmain RMA and when they came back after putting them together and starting the miner, all asic are detected but it won't stop mining.
Even after multiple resets to default setting, lowering clock frequency etc..
Do you have an idea what can be the cause and how to make it mine again?
You had it in to bitmain rma, it came back and will not hash, right? Check connections Test power What lights do you see? Here is a guide for how to check the hash board, but tell us more about your particular situation. https://bitmain.zendesk.com/hc/en-us/articles/204875015-How-to-diagnose-S5-hashing-PCB |
Transaction fees go to the pools and the pools decide to pay them to the miners. Anything else, including off-chain solutions are stealing and not the way Bitcoin was intended to function.
Make the block size set by the pool. Pool = miners and they get the choice.
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DarKSm0ke
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November 07, 2015, 11:28:51 AM |
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Hello Guys,
I have some issues with my S5. I have sent board to Bitmain RMA and when they came back after putting them together and starting the miner, all asic are detected but it won't stop mining.
Even after multiple resets to default setting, lowering clock frequency etc..
Do you have an idea what can be the cause and how to make it mine again?
You had it in to bitmain rma, it came back and will not hash, right? Check connections Test power What lights do you see? Here is a guide for how to check the hash board, but tell us more about your particular situation. https://bitmain.zendesk.com/hc/en-us/articles/204875015-How-to-diagnose-S5-hashing-PCBThanks for your advises. We were able to make it work finally. It was an issue with the fan. There are 4 fan connectors on the controller board and apparently if you don't plug it in the correct one the software is not happy and won't start mining, even if fan is plugged in an running. |
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Sweminer777
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November 07, 2015, 06:52:53 PM |
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It just looks like a replacement for the 14V Buck Converter that feeds the LDO on the Top 3 Stages. I guess it's intended as a replacement if you have a failure? They have removed the inductor but left the U101 in place, also looks like you can also adjust the voltage.
Rich
I saw voltage on it and was curious with that. With being able to adjust think it will see any eficiency change? Or mainly just a fix and that's it. No it's just a rather complicated and expensive way of repairing your 12V to 14V step up converter, by completely replacing all of the circuitry. Not a lot of value in the adjustable voltage as it needs to be set a couple of volts over the supply voltage in order that the LDO Regulators will function. Rich so is this some possiblity to fix burned boards by doing this?. seems that u101 chip is mostly the failure. and you cant purchase a loose chip . |
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RichBC
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November 07, 2015, 06:56:18 PM |
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It just looks like a replacement for the 14V Buck Converter that feeds the LDO on the Top 3 Stages. I guess it's intended as a replacement if you have a failure? They have removed the inductor but left the U101 in place, also looks like you can also adjust the voltage.
Rich
I saw voltage on it and was curious with that. With being able to adjust think it will see any eficiency change? Or mainly just a fix and that's it. No it's just a rather complicated and expensive way of repairing your 12V to 14V step up converter, by completely replacing all of the circuitry. Not a lot of value in the adjustable voltage as it needs to be set a couple of volts over the supply voltage in order that the LDO Regulators will function. Rich so is this some possiblity to fix burned boards by doing this?. seems that u101 chip is mostly the failure. and you cant purchase a loose chip . Yes although their add does not say as much I see is being an "easy" way to repair your 14V upconverter that supplies the LDO's in the top 3 stages in the chain. How often U101 or other parts of that circuitry fail I do not know? Rich |
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Sweminer777
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November 07, 2015, 07:05:15 PM |
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It just looks like a replacement for the 14V Buck Converter that feeds the LDO on the Top 3 Stages. I guess it's intended as a replacement if you have a failure? They have removed the inductor but left the U101 in place, also looks like you can also adjust the voltage.
Rich
I saw voltage on it and was curious with that. With being able to adjust think it will see any eficiency change? Or mainly just a fix and that's it. No it's just a rather complicated and expensive way of repairing your 12V to 14V step up converter, by completely replacing all of the circuitry. Not a lot of value in the adjustable voltage as it needs to be set a couple of volts over the supply voltage in order that the LDO Regulators will function. Rich so is this some possiblity to fix burned boards by doing this?. seems that u101 chip is mostly the failure. and you cant purchase a loose chip . Yes although their add does not say as much I see is being an "easy" way to repair your 14V upconverter that supplies the LDO's in the top 3 stages in the chain. How often U101 or other parts of that circuitry fail I do not know? Rich ' looks like the piece?. i've been researching seem slike a common failure when short circuit the board,and u101 chip seems impossible to get. |
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RichBC
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November 07, 2015, 07:15:09 PM |
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If you want to just replace U101 then the part to look for is RT8537 - Current mode Boost-type LED driver However not sure how easy they are to find? Rich |
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J4bberwock
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November 07, 2015, 07:30:15 PM |
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It just looks like a replacement for the 14V Buck Converter that feeds the LDO on the Top 3 Stages. I guess it's intended as a replacement if you have a failure? They have removed the inductor but left the U101 in place, also looks like you can also adjust the voltage.
Rich
I saw voltage on it and was curious with that. With being able to adjust think it will see any eficiency change? Or mainly just a fix and that's it. No it's just a rather complicated and expensive way of repairing your 12V to 14V step up converter, by completely replacing all of the circuitry. Not a lot of value in the adjustable voltage as it needs to be set a couple of volts over the supply voltage in order that the LDO Regulators will function. Rich so is this some possiblity to fix burned boards by doing this?. seems that u101 chip is mostly the failure. and you cant purchase a loose chip . If you have defective S5 boards in EU, without any chance to get them exchanged by Bitmain, I'm interested to buy them if your price is fair. And I'm also interested in 12 to 20 defective S3 boards, just in case someone have a few laying around. |
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anamichii
Sr. Member
Offline
Activity: 287
Merit: 250
Global economic crisis? i hold my bitcoin..
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November 08, 2015, 10:15:20 PM |
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need advice.. i modified my s5 with watercooling, each bb connected with 4 blades, each 2 blade connected with 1 psu. last night i got one of psu stop working, the consequently is the water pump stopped (i connect water pump with psu). the other psu (with bb power connected) still running and still hashing until i found it with temp is 106C and hash 16ghs i turn it off, replace the psu (that connect with pump) and power it on again... violaa the previous blade with 106C degree is not working, and only show ------ [spoiler=blade]  [/spoiler] i calculate the average temp is (106 + 106 + 0 + 0)/4 = 53, thats why the miner did not stop working, the average is below 80 degrees. now i need advice, how to repair my blade with ------ caused by high temp? |
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Questor
Member
Offline
Activity: 71
Merit: 10
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November 10, 2015, 06:13:39 PM |
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Does anyone here know what the component labeled "G337 V2" on the Antminer S5 hashboards is? It's a 2-pin package, looks to be built for high current, and is silkscreen labeled C2, C3, etc. There's one in between each pair of ASICs -- i.e., one for each stage in the string, shared by both strings. My best guess is that they are shunt voltage regulators intended to serve as a bypass in case the voltage gets too high (dead ASIC?), but I don't really know. Ideally, if someone at Bitmain could chime in with a link to a datasheet or a part number, that would be ideal. We're investigating an issue on behalf of another miner in which some of them appear to have burned out.
Has anyone managed to effect a repair on hashboards where this part has burned? I have in front of me an S5 which obviously burned in this manner, on each hash board the third (R to L on top row) 2v 330uf cap is burned to white powder on top, and on one of the boards the second one has started to go as well. I'm also measuring low resistance on the 4.99 Ohm Chip resistor above each of the badly burned caps but the resistor on the half burned capacitor is testing nominally. Any other components to check before replacing the caps / resistors? It seems that if a 2V cap fried this badly, there surely must be damage to the ASIC pair around it, but perhaps these are miracle boards...? Anyone who has worked on these please chime in with any thoughts or advice. Cheers! P.S. if anyone has digi or mouser part #'s that would be great. I saw J4bberwock posted a 4v part which should be fine, but if anyone has the exact #'s it is appreciated! |
Minin', my own business.
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RichBC
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November 10, 2015, 06:30:18 PM |
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Does anyone here know what the component labeled "G337 V2" on the Antminer S5 hashboards is? It's a 2-pin package, looks to be built for high current, and is silkscreen labeled C2, C3, etc. There's one in between each pair of ASICs -- i.e., one for each stage in the string, shared by both strings. My best guess is that they are shunt voltage regulators intended to serve as a bypass in case the voltage gets too high (dead ASIC?), but I don't really know. Ideally, if someone at Bitmain could chime in with a link to a datasheet or a part number, that would be ideal. We're investigating an issue on behalf of another miner in which some of them appear to have burned out.
Has anyone managed to effect a repair on hashboards where this part has burned? I have in front of me an S5 which obviously burned in this manner, on each hash board the third (R to L on top row) 2v 330uf cap is burned to white powder on top, and on one of the boards the second one has started to go as well. I'm also measuring low resistance on the 4.99 Ohm Chip resistor above each of the badly burned caps but the resistor on the half burned capacitor is testing nominally. Any other components to check before replacing the caps / resistors? It seems that if a 2V cap fried this badly, there surely must be damage to the ASIC pair around it, but perhaps these are miracle boards...? Anyone who has worked on these please chime in with any thoughts or advice. Cheers! P.S. if anyone has digi or mouser part #'s that would be great. I saw J4bberwock posted a 4v part which should be fine, but if anyone has the exact #'s it is appreciated! The cap is fried, however most likely it has fried because of a failure of one or both of the BM1384 ASIC chips on the Node. Dependant on the exact mode of failure of the BM1384 the 2V capacitor will have been overvolted causing failure. Measuring across the capacitor / resistor should read about 4.7 Ohms (Do allow for resistance of the meter leads by connecting them together before measuring) So you can try replacing the capacitor but almost certainly one or both of the BM1384 chips will also have failed. Changing them is much more difficult. Rich |
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Questor
Member
Offline
Activity: 71
Merit: 10
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November 12, 2015, 09:43:49 AM |
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Does anyone here know what the component labeled "G337 V2" on the Antminer S5 hashboards is? It's a 2-pin package, looks to be built for high current, and is silkscreen labeled C2, C3, etc. There's one in between each pair of ASICs -- i.e., one for each stage in the string, shared by both strings. My best guess is that they are shunt voltage regulators intended to serve as a bypass in case the voltage gets too high (dead ASIC?), but I don't really know. Ideally, if someone at Bitmain could chime in with a link to a datasheet or a part number, that would be ideal. We're investigating an issue on behalf of another miner in which some of them appear to have burned out.
Has anyone managed to effect a repair on hashboards where this part has burned? I have in front of me an S5 which obviously burned in this manner, on each hash board the third (R to L on top row) 2v 330uf cap is burned to white powder on top, and on one of the boards the second one has started to go as well. I'm also measuring low resistance on the 4.99 Ohm Chip resistor above each of the badly burned caps but the resistor on the half burned capacitor is testing nominally. Any other components to check before replacing the caps / resistors? It seems that if a 2V cap fried this badly, there surely must be damage to the ASIC pair around it, but perhaps these are miracle boards...? Anyone who has worked on these please chime in with any thoughts or advice. Cheers! P.S. if anyone has digi or mouser part #'s that would be great. I saw J4bberwock posted a 4v part which should be fine, but if anyone has the exact #'s it is appreciated! The cap is fried, however most likely it has fried because of a failure of one or both of the BM1384 ASIC chips on the Node. Dependant on the exact mode of failure of the BM1384 the 2V capacitor will have been overvolted causing failure. Measuring across the capacitor / resistor should read about 4.7 Ohms (Do allow for resistance of the meter leads by connecting them together before measuring) So you can try replacing the capacitor but almost certainly one or both of the BM1384 chips will also have failed. Changing them is much more difficult. Rich Thank you for the reply! So, I replaced the capacitor, but the board still does not hash  All ASIC's show 'oooooooo' in the status, but the hashrate is zero, I would have expected to see oooo--oo or ooooxxoo or whatnot... Is there a way to bypass what may be the dead ASIC's without overly affecting the rest of the chips / voltages on the boards? |
Minin', my own business.
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RichBC
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November 12, 2015, 10:00:07 AM |
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Thank you for the reply! So, I replaced the capacitor, but the board still does not hash All ASIC's show 'oooooooo' in the status, but the hashrate is zero, I would have expected to see oooo--oo or ooooxxoo or whatnot... Is there a way to bypass what may be the dead ASIC's without overly affecting the rest of the chips / voltages on the boards? The S5 Hashboard is a simple design, but tricky to troubleshoot & repair because of it's string design often gives a "One Down All Down" result. I will at some point do a Trouble Shooting & Repair thread, but although my understanding of the Board is improving all the time I do not feel qualified to do that yet. I also only have one failed board to play with which is slowing things. Back to your question it is really too complicated to cover in a few lines, however the first step is to check the voltage across each of the 15 nodes (The capacitor you have just replaced) These should all be about 0.8V, a "faulty" node will be more or less than this, however this is complicated in practice because a fault driven increase or decrease on a node will also result in the converse change spread over the remaining nodes. Next thing to check is the 14V from the Upconverter at the Top Right of the board, and then check that the 25MHz oscillator Y1 is running. Bypassing nodes is possible, but only practical if it is one of the upper nodes that has failed, and even then you would need to reduce the 12V supply accordingly. Bottom line is almost certainly an ASIC or two has failed (The Node voltages will help confirm this) and the only real course of action is to remove & replace. The replacement would have to be taken from another board as that is the only source... Rich |
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opentoe
Legendary
Offline
Activity: 1274
Merit: 1000
Personal text my ass....
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November 12, 2015, 09:12:25 PM |
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This thread should be re-named to "broken / fix / repair S5" thread or something. Just went through 12 pages of the same thing.
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RichBC
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November 12, 2015, 09:19:35 PM |
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This thread should be re-named to "broken / fix / repair S5" thread or something. Just went through 12 pages of the same thing.
S5 getting on a bit now in Miner Years & people don't tend to post that theirs is fit and well...  Rich |
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navigator
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November 12, 2015, 10:58:56 PM |
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This thread should be re-named to "broken / fix / repair S5" thread or something. Just went through 12 pages of the same thing.
S5 getting on a bit now in Miner Years & people don't tend to post that theirs is fit and well... Rich I have 2 from the 1st batch that are still hashing with zero problems since I got them. |
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pinhead666
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November 13, 2015, 07:35:39 AM |
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Well, I have a minor problem. I added an extra hashboard to one controller, totalling 3 hashboards/controller. All 3 chains are found,no dead chips,no hw errors. But total hashrate is only 1.33 TH. I expected 1.6 TH. All blades are good and with separate controller I get hashrate right. So what could be the cause of the problem? I power it with dps-2000 server psu, so it gets enough juice. And yes power consumption is about 910W from wall, I measured it.
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RichBC
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November 13, 2015, 07:50:02 AM |
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Well, I have a minor problem. I added an extra hashboard to one controller, totalling 3 hashboards/controller. All 3 chains are found,no dead chips,no hw errors. But total hashrate is only 1.33 TH. I expected 1.6 TH. All blades are good and with separate controller I get hashrate right. So what could be the cause of the problem? I power it with dps-2000 server psu, so it gets enough juice. And yes power consumption is about 910W from wall, I measured it.
That is odd I have run 4 Hash Boards on one controller and got the correct Hash Rate. I was undervolting & Underclocking the Boards at the time at 10 Volts & 250MHz but am uncertain if that would be the reason it was ok? My total Hash rate was 1650GH and 615W at the Wall. Not running things that way at the moment so can't easily go and check anything. Rich |
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pinhead666
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November 13, 2015, 08:55:32 AM |
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I usually try to solve problems myself but this one goes over my head. Is there any other fw than 20150107 that supports more than two boards. And I'll swap that board to another s5 and see what the hashrate then will be.
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