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There are several different types of Bitcoin clients. The most secure are full nodes like Bitcoin Core, which will follow the rules of the network no matter what miners do. Even if every miner decided to create 1000 bitcoins per block, full nodes would stick to the rules and reject those blocks.
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philipma1957
Legendary
 Offline
Activity: 4116
Merit: 7849
'The right to privacy matters'
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December 25, 2015, 03:51:22 AM |
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well it looks like it is dead. any other tests would need a different s-5 and swapping the dead board to a known working s-5. sidehack was taking dead s-5 boards and going to make smaller pods from them. you could send it to him and i think you get a pod back. I am not sure of anyone doing repairs on the boards since they are now an older generation of gear. |
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dannygroove (OP)
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December 25, 2015, 04:11:14 AM |
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Thanks Philip, I value a lot the time you spent trying to help. I learned alot. It saddens me that one of my S5s lost one board, I will consider sending it to sidehack after holidays.
Id also like to thank everyone else who tried to help. Have a merry christmas and a happy new year.
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P4ndoraBox7
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December 25, 2015, 04:21:36 AM |
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Could be either cable, psu, or board.
If you dont have a second PSU you may use a voltmetre and check voltage.
Switch cables
If anything work, then the problem could happen from the S5, try to reduce frequency again.
Maybe switch power cable and wall switch too.
In other words, some tinkering has to be done to find out the source of the problem.
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VirosaGITS
Legendary
Offline
Activity: 1302
Merit: 1068
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December 25, 2015, 04:39:53 AM |
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Thanks Philip, I value a lot the time you spent trying to help. I learned alot. It saddens me that one of my S5s lost one board, I will consider sending it to sidehack after holidays.
Id also like to thank everyone else who tried to help. Have a merry christmas and a happy new year.
Sorry, beside messing with cables in case something is loose, its hard to say if there is anything else to try to fix it. The next thing to see, if i missed it, would be to swap the controller to see if the problem follow the blade or the controller. Just to double check its really the blade thats gone bad. And i also did not see anyone reply for the EVGA G2 1300w. The answer is definitively. You'll lose 1%~ AC/DC conversion efficiency over optimum load however. I'd run two of them at 393hz on one. |
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dannygroove (OP)
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December 25, 2015, 05:36:47 AM |
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Could be either cable, psu, or board.
If you dont have a second PSU you may use a voltmetre and check voltage.
Switch cables
If anything work, then the problem could happen from the S5, try to reduce frequency again.
Maybe switch power cable and wall switch too.
In other words, some tinkering has to be done to find out the source of the problem.
The cables were tested, I also tested the PSU as I have an identical one, it all points at a dead hashing board. Disgracefully. |
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P4ndoraBox7
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December 25, 2015, 05:40:11 AM |
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Could be either cable, psu, or board.
If you dont have a second PSU you may use a voltmetre and check voltage.
Switch cables
If anything work, then the problem could happen from the S5, try to reduce frequency again.
Maybe switch power cable and wall switch too.
In other words, some tinkering has to be done to find out the source of the problem.
The cables were tested, I also tested the PSU as I have an identical one, it all points at a dead hashing board. Disgracefully. ''disgracefully'' Yess I understand. Then except lowering frequencies you could power on only the good boards and then adjust at a raisonable frequency. You wont have a perfect S5, but still, the other board is working. Sry for your loss. |
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dannygroove (OP)
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December 25, 2015, 05:40:59 AM |
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Thanks Philip, I value a lot the time you spent trying to help. I learned alot. It saddens me that one of my S5s lost one board, I will consider sending it to sidehack after holidays.
Id also like to thank everyone else who tried to help. Have a merry christmas and a happy new year.
Sorry, beside messing with cables in case something is loose, its hard to say if there is anything else to try to fix it. The next thing to see, if i missed it, would be to swap the controller to see if the problem follow the blade or the controller. Just to double check its really the blade thats gone bad. And i also did not see anyone reply for the EVGA G2 1300w. The answer is definitively. You'll lose 1%~ AC/DC conversion efficiency over optimum load however. I'd run two of them at 393hz on one. I have another S5 and its working perfectly since day one, running OCed at 400M. Needless to say... proof is quite clear that we are looking at a dead hashing board.  I asked the EVGA question since the first reasoning seemed to be a dead PSU (I have a couple of spare EVGA 1300w). I thought that if my Corsair died I maybe could've run both my S5s on one EVGA 1300w. |
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dannygroove (OP)
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December 25, 2015, 05:42:36 AM |
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Could be either cable, psu, or board.
If you dont have a second PSU you may use a voltmetre and check voltage.
Switch cables
If anything work, then the problem could happen from the S5, try to reduce frequency again.
Maybe switch power cable and wall switch too.
In other words, some tinkering has to be done to find out the source of the problem.
The cables were tested, I also tested the PSU as I have an identical one, it all points at a dead hashing board. Disgracefully. ''disgracefully'' Yess I understand. Then except lowering frequencies you could power on only the good boards and then adjust at a raisonable frequency. You wont have a perfect S5, but still, the other board is working. Sry for your loss. Do I need to remove the board in order to power it off? |
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P4ndoraBox7
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December 25, 2015, 05:46:15 AM |
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Could be either cable, psu, or board.
If you dont have a second PSU you may use a voltmetre and check voltage.
Switch cables
If anything work, then the problem could happen from the S5, try to reduce frequency again.
Maybe switch power cable and wall switch too.
In other words, some tinkering has to be done to find out the source of the problem.
The cables were tested, I also tested the PSU as I have an identical one, it all points at a dead hashing board. Disgracefully. ''disgracefully'' Yess I understand. Then except lowering frequencies you could power on only the good boards and then adjust at a raisonable frequency. You wont have a perfect S5, but still, the other board is working. Sry for your loss. Do I need to remove the board in order to power it off? If I check the Bitmain S5 manual ; https://bitmaintech.com/files/download/AntMiner-S5%20user%20guide.pdfPage 4 You may see that you can power up a S5 with 2 differents psu. Instead of using the 4 pcie connectors, only use 2 on the same ''line''. When youll get your working board, then youll be able to adjust your frequency on it. You may be able to get some unused power from your psu to be able to do some secure overclocking. It is what I would try if I were you. |
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VirosaGITS
Legendary
Offline
Activity: 1302
Merit: 1068
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December 25, 2015, 06:04:14 AM |
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Thanks Philip, I value a lot the time you spent trying to help. I learned alot. It saddens me that one of my S5s lost one board, I will consider sending it to sidehack after holidays.
Id also like to thank everyone else who tried to help. Have a merry christmas and a happy new year.
Sorry, beside messing with cables in case something is loose, its hard to say if there is anything else to try to fix it. The next thing to see, if i missed it, would be to swap the controller to see if the problem follow the blade or the controller. Just to double check its really the blade thats gone bad. And i also did not see anyone reply for the EVGA G2 1300w. The answer is definitively. You'll lose 1%~ AC/DC conversion efficiency over optimum load however. I'd run two of them at 393hz on one. I have another S5 and its working perfectly since day one, running OCed at 400M. Needless to say... proof is quite clear that we are looking at a dead hashing board. I asked the EVGA question since the first reasoning seemed to be a dead PSU (I have a couple of spare EVGA 1300w). I thought that if my Corsair died I maybe could've run both my S5s on one EVGA 1300w. Well, yes you could. Most of my S5 do 393 for 1.29TH/s. One of them do 1.32TH/s at 400, but the others don't get the right voltage it seem, so i leave them at 393. |
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