philipma1957
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Activity: 4102
Merit: 7765
'The right to privacy matters'
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June 21, 2016, 03:55:06 PM |
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anyway to quiet down the S7's fans?
I don't know if its normal or not, I have 4680/4200 RPM @ 53C/54C/52C @ 675Hz 4.56GH/s
those temps are lower then they need to be. manually set fans to 50% and clock at 650 give back your numbers with those settings. I am trying to get you to be at rpm 3500/3300 @ 63c/64c/62c @ 650hz and 4.47 gh/s the temps in bold are good so the lower you can set fans and get that 62-65c set of numbers is good. the small drop in hash to 4.47 is hardly any money. |
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bspurloc
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June 21, 2016, 05:49:05 PM |
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anyway to quiet down the S7's fans?
I don't know if its normal or not, I have 4680/4200 RPM @ 53C/54C/52C @ 675Hz 4.56GH/s
those temps are lower then they need to be. manually set fans to 50% and clock at 650 give back your numbers with those settings. I am trying to get you to be at rpm 3500/3300 @ 63c/64c/62c @ 650hz and 4.47 gh/s the temps in bold are good so the lower you can set fans and get that 62-65c set of numbers is good. the small drop in hash to 4.47 is hardly any money. Oh nice. lol... when I asked that I hadn;t noticed there was a fan speed adjustment but awesome info! I put fans at 50% left it at 675 to see what would happen since they are in AC. so now I have 3360/3720 60/61/59 675 4600 gh/s and the noise is way down. I could probably drop the fans lower to get to 62's huh? Is there any OS mod to get these to shut off at like 75 instead of over 80? I rather they stop mining than risk frying over 80. Thanks! |
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bomberb17
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June 22, 2016, 09:29:22 PM |
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Any way to tweak a S7-LN and change web interface/ssh port for remotely controlling it?
Done it for Spondoolies, hope it can be done for Bitmain miners
Yes there is, but you should find the file with winscp and manualy edit it. I forgot which was it on the s4 but i think is the same on all ants. Ok, so anyone know which file to edit? So anyone know which file to edit for changing web/ssh ports? Ok I've found how to change ssh port: ssh into the miner and add the following line to /config/dropbear (where xxxxx = your port of choice) Still trying to figure out how to change web interface port, the only directory that persists after reboot is /config and the lighttpd.conf (where the web port should be changed) is in /etc which resets after reboot. Any way maybe to make /etc/ directory persistent as well? |
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not.you
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Activity: 1726
Merit: 1018
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June 22, 2016, 11:10:38 PM |
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Hey if you happen to see how to override the "stop hashing on overheat" feature I would appreciate hearing about it.
I have a board with an erroneous temp sensor that randomly throws out temps anywhere from 70 to 150 or so. The problem is with most of those the miner refuses to mine at all. It thinks it is overheating. It used to throw out zero a lot which would allow it to continue to hash but it doesn't seem to report zero anymore, always some random number, usually in the 90's. I have that board disconnected so I can hash with the remaining two but I would sure like to figure out how to make it ignore those erroneous temps and keep on mining.
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_kai_
Newbie
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Activity: 23
Merit: 0
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June 25, 2016, 03:23:56 AM |
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I'm the one who took this screenshot and is responsible for the hosting of _kai_'s machine. Just so you know, the cgminer output paste was from a different boot of this machine. During that boot, it appeared that cgminer wasn't starting automatically, and the stats screen just showed 0s on the top line (hashrate, elapsed, etc.) and blanks everywhere else (pool info, ASIC status, fan speed). Because of this, I decided to SSH in and start it from the command line to get more debugging information. At the same time, I unplugged two hashboards, in the hope that the remaining hashboard (the bottom one according to both the screenshot and the physical position in the rig) would work. I then saw all of this HW error stuff in the log output. Later on, I switched hashboards and got it to run again with only the top hashboard. I then plugged in all three hashboards again, and got the attached screenshot. The PSU is a server-grade DPS1200FB running on 240V, and supplies an open-circuit voltage of 12.30 V, and at full load usually gives around 12.15 V. I have not yet seen a DPS1200FB shut down from overload on an S7, and the problem does not go away if I power only one hashboard at a time, so I am inclined to think that the PSU wimping out is an unlikely explanation. Individual chips burning out from mild overvoltage or transient spikes is more plausible, but I think still unlikely. Intake air temperature was below 20°C at the time of the fault. The rig crashed at 1:25am local time. None of our cooling system was experiencing a failure at the time that the rig crashed. Both fans on the rig appear to be functional. Just following up with the result to this in case anyone else has the same or similar problem, one of my pet hates is people never updating 'please help me' posts with the resolutions to their problems, so I try not to do that myself  It turns out the problem is that the control board I have has five of nine data connector slots that are dead. (The data cables work fine.) Who would have thought those controller boards were that crap... |
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RichBC
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June 25, 2016, 05:50:48 AM |
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It turns out the problem is that the control board I have has five of nine data connector slots that are dead. (The data cables work fine.)
Who would have thought those controller boards were that crap...
I think you will find that from a hardware point of view the IO Board is fine, the problem is that the version of firmware you are running does not support them. Rich |
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_kai_
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Activity: 23
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June 25, 2016, 12:03:07 PM |
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I think you will find that from a hardware point of view the IO Board is fine, the problem is that the version of firmware you are running does not support them.
Rich
Really? S7 Batch 1 firmware, haven't upgraded? |
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not.you
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Activity: 1726
Merit: 1018
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June 25, 2016, 12:54:03 PM |
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I think you will find that from a hardware point of view the IO Board is fine, the problem is that the version of firmware you are running does not support them.
Rich
Really? S7 Batch 1 firmware, haven't upgraded? The firmware updates released after the miner was out actually disabled the extra connectors on the board. The original firmware it shipped with allowed them to work but ironically that original firmware has a different issue that causes it not to work anymore without going in through SSH to disable a network check "feature". |
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Tupsu
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Activity: 1218
Merit: 1003
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June 25, 2016, 12:57:50 PM |
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I think you will find that from a hardware point of view the IO Board is fine, the problem is that the version of firmware you are running does not support them.
Rich
Really? S7 Batch 1 firmware, haven't upgraded? Read this https://bitcointalk.org/index.php?topic=1173573.015 september 2015 software support 6 blades I have today 5x S7 with 6 blades. All with File System Version Tue Sep 15 16:50:19 CST 2015 |
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vg54dett
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June 26, 2016, 08:25:40 PM |
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Hi guys, I'm posting here a copy of my thread https://bitcointalk.org/index.php?topic=1525308 in hope to get some help . my s7 controller was dead after a thunderstorm. I ordered a IO board and a BB board from bitmain to be sure I 'm able to send the s7 back to work. But I can't make it work with the new parts. I assembled the IO and the BB to make a new controller , and plugged the S7. I have a fixed green led and a fixed yellow led (but not the blinking green hashing led). I can't see the device in my router , it doesn't appear anywhere , as if it was not plugged at all. (my network is ok and the cables too, the problem is not here). Please note that in reality , if there is no rj45 plugged , you won't have the green and yellow light. They light only when the cable is plugged in the controller. What do you thinks ? bitmain forgot to upload firmware ? defective unit ? or did I missed something to config ? Thanks for any help! NB : do not hesitate to tell me if I forgot a point in my explaination, if it's not clear, or if my english is not understandable ! |
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smaxz
Sr. Member
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Activity: 430
Merit: 253
VeganAcademy
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June 26, 2016, 10:59:54 PM |
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i would forget the hashing boards for now and just attempt to plug in the bare ioboard with bb board attached and see if you can ssh in or pull up the web interface.
connect to your home router and it should show you which IP address has been allocated to it.
barring that you can portscan port 22 on all your local nets ip range and see which one responds.
lots of ways to tell. but basically if you got a new bb and io board there is a reasonable chance you should be able to at least pull up that interfaces daemons after the 90 second boot up process.
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- NGdTwHRSdnThdi1drQuHGT3khAHRtZ1HMq -
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HerbPean
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Activity: 1638
Merit: 1005
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June 27, 2016, 04:54:26 AM |
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the F1 version with one fan was a bad idea. Unless, you throw them nice fresh air, they overheat.
They need 2 fans to be safe.
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vg54dett
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June 27, 2016, 02:22:24 PM |
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i would forget the hashing boards for now and just attempt to plug in the bare ioboard with bb board attached and see if you can ssh in or pull up the web interface.
connect to your home router and it should show you which IP address has been allocated to it.
barring that you can portscan port 22 on all your local nets ip range and see which one responds.
lots of ways to tell. but basically if you got a new bb and io board there is a reasonable chance you should be able to at least pull up that interfaces daemons after the 90 second boot up process.
Thank you for trying to help. It didn't work but I kept fighting. I finally managed to make it work using a micro sd card. If people have same problem , here it is : https://shop.bitmain.com/support.htm?pid=007201604120945219855QObfk20066CWith the sd card , I managed to get web interface. I then uploaded last firmware and removed sd card and it worked. I think Bitmain sent me empty bb board ... And my thought seems to confirm , because maybe 1 hour later , I received an unexpected DHL package : another BB board ... I tried it and it worked . I think they found the one they sent first was empty and they sent back another one with good firmware. So I have now spare parts ! |
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marvykkio
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June 28, 2016, 05:48:45 PM |
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running out the warranty, you have already burned two cards, to be noted that I never overclokkato the miner, indeed, here in Sicily we 37gradi ° C, quindo I brought miner frequency 550, and you will burn too, just are tired of spending money, meteriali too poor, the power supplies are to bitmain, so the problem is always and only the bad material, then this miner and done badly, the blade that suffers most is the central one, when turned off the central one other blades down temperature, from 66 down to 58C °,   |
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HagssFIN
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Activity: 2422
Merit: 1706
Electrical engineer. Mining since 2014.
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June 28, 2016, 06:01:51 PM |
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running out the warranty, you have already burned two cards, to be noted that I never overclokkato the miner, indeed, here in Sicily we 37gradi ° C, quindo I brought miner frequency 550, and you will burn too, just are tired of spending money, meteriali too poor, the power supplies are to bitmain, so the problem is always and only the bad material, then this miner and done badly, the blade that suffers most is the central one, when turned off the central one other blades down temperature, from 66 down to 58C °, The power density in the Antminer S7 is high. It takes 1300-1400W at wall. So that makes about 1200-1300W at the 12V rail. That's a lot of heat for the heat sinks. If your ambient temperature is 37 celsius, that is REALLY a lot for the miner to handle. Drop the frequency down or find some cooling methods. |
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marvykkio
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June 28, 2016, 06:04:37 PM |
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Facts my miners were set to 550 MHz
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notlist3d
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Activity: 1456
Merit: 1000
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June 28, 2016, 07:03:04 PM |
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the F1 version with one fan was a bad idea. Unless, you throw them nice fresh air, they overheat.
They need 2 fans to be safe.
It really works flawless though. I have one and had 0 issues with it, if something goes wrong it should shutdown at 80 c. I do have a second fan but never did attach it to it as it is working good. It is summer and hot for many and I don't see S7-F1's burning up.... so seems to work fine. But I do agree it takes away some safety with redundancy of having two fan's even though we have not been seeing them burn up. I also have some decent sized fan's blowing air through my mining area to. So guess that is part of why I'm not to worried. |
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HerbPean
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Activity: 1638
Merit: 1005
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June 28, 2016, 08:11:34 PM |
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the F1 version with one fan was a bad idea. Unless, you throw them nice fresh air, they overheat.
They need 2 fans to be safe.
It really works flawless though. I have one and had 0 issues with it, if something goes wrong it should shutdown at 80 c. I do have a second fan but never did attach it to it as it is working good. It is summer and hot for many and I don't see S7-F1's burning up.... so seems to work fine. But I do agree it takes away some safety with redundancy of having two fan's even though we have not been seeing them burn up. I also have some decent sized fan's blowing air through my mining area to. So guess that is part of why I'm not to worried. Well it's the summer for sure here in NA ... the two fans versions just don't care about it and keep mining at default freq. The F1 version suffers tho. I downclocked them until I received my second fans. |
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notlist3d
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Activity: 1456
Merit: 1000
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June 28, 2016, 09:35:16 PM |
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the F1 version with one fan was a bad idea. Unless, you throw them nice fresh air, they overheat.
They need 2 fans to be safe.
It really works flawless though. I have one and had 0 issues with it, if something goes wrong it should shutdown at 80 c. I do have a second fan but never did attach it to it as it is working good. It is summer and hot for many and I don't see S7-F1's burning up.... so seems to work fine. But I do agree it takes away some safety with redundancy of having two fan's even though we have not been seeing them burn up. I also have some decent sized fan's blowing air through my mining area to. So guess that is part of why I'm not to worried. Well it's the summer for sure here in NA ... the two fans versions just don't care about it and keep mining at default freq. The F1 version suffers tho. I downclocked them until I received my second fans. I just have one of the S7-F1's so maybe I got lucky but mine has handled Midwest heat up to low 90's F outside (which it is currently). No suffering so far default settings/freq. I do push air with high CFM fan's through miner area and a commercial gable fan to get rid of heat. So that could possibly help. It is a hot day but you can see my S7-F1 is handling it fine even during summer temps. - http://i100.photobucket.com/albums/m25/notlist3d/S7-F1/test_zpswuvatl7q.jpg |
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