Hey, Phil.
You somehow, missed me.
Just noticed.
Yeah, you missed me too I guess +3.4 = lanfeusst
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Holy Smoking HOT! That is really pushing it. Keep us informed if you have any issues. You are getting COIN right now and I hope that you can continue to get COIN later!
Yes, I'm like you. I wonder how long it will last? Anyway, THAT is some serious mining there with the S7. Can't be done without increasing the voltage. Great job! Keeping you updated : My S7 Batch 1 is still going strong at 700 Mhz, 12.75 V : https://i.imgur.com/wh99gDA.pngHow much are you making on kano pools daily avg. thinking about switching but what to make at less 0.032 btc daily. I'm not sure, i'm making ~0.019 btc per block now and payments is each block |
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Holy Smoking HOT! That is really pushing it. Keep us informed if you have any issues. You are getting COIN right now and I hope that you can continue to get COIN later!
Yes, I'm like you. I wonder how long it will last? Anyway, THAT is some serious mining there with the S7. Can't be done without increasing the voltage. Great job! Keeping you updated : My S7 Batch 1 is still going strong at 700 Mhz, 12.75 V : [IMAGE REDACTED] Are you able to measure your draw with that stepped up supply? Yes, The power comsumption at the wall is 1590 watts => 0.28 J/Gh ( psu is dps-2000bb ) |
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Holy Smoking HOT! That is really pushing it. Keep us informed if you have any issues. You are getting COIN right now and I hope that you can continue to get COIN later!
Yes, I'm like you. I wonder how long it will last? Anyway, THAT is some serious mining there with the S7. Can't be done without increasing the voltage. Great job! Keeping you updated : My S7 Batch 1 is still going strong at 700 Mhz, 12.75 V :  |
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it possible to get the PWM to go lower? If i enter 1%, 5%, 10% there's no noticed difference in volume.
noise isnt bad, about equal to an S3 in a warm room, maybe a tad more 'penetrating'. With the cold air from outside, I can achieve good hashrates with a low fanspeed, but if i could get it 20% quieter at the cost of ~200GH I'd be happy to do so. Without the cold air from outside, low-rpm is far from sufficient if i am tageting a 55-60C operational temperature 20C (ambient) = 3.6TH 10C = 4TH 5C = 4.3TH 0C = 4.6TH -5C = 4.8TH (and 0.011% errors, havent pushed further yet) It is possible to go lower than 20% PWM with my modified bitmain_spi file : The only modification is that it can go to 10% min instead of 20% min. (You still need to set the fan percentage to what you want : example 18%) This allows to effectively decrease the noise from the s7 (totally silent if set at 10%) if you are in a very cold ambient temperature or if you downclock the frequency seriously It should not be used if the temperature is > 70°C. Check that the stop miner when temp is over 80°C box is checked in the configuration page. Download here : https://mega.nz/#!8BUVVa7K!pSyaXVVjxfkthPdgJUSabKQQaRiVi1s6-zct5Ob32iMThe original is here if you need it : https://mega.nz/#!MctVRR7D!lEEb0NvQQNtAemzYNawEAtp8qMVi75dxOLqwNFqv7ToTo use it : scp bitmain_spi_s7_fan_10.ko root@192.168.0.16:/config/ #Copy the file to the miner then ssh to the miner : ssh root@192.168.0.16then : cp /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko /config/bitmain_spi_original.ko #Makes a backup
cp /config/bitmain_spi_s7_fan_10.ko /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko # Copy the new file to the good place
/etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start #restart cgminer
The modification will be gone if you restart your miner. If you want to do it again after a restart you only need to do the two last command : cp /config/bitmain_spi_s7_fan_10.ko /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko # Copy the new file to the good place
/etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start #restart cgminer
If my new binaries help you and you are satisfied, consider helping me by sending some bitcoins to my address: 1NfUptoShEtSD2SQV2f45Xr1bTysFnsHiU Warning: Do nothing you don't understand ; No warranties whatsoever are given by me ; this could not work or be useless ; this could burn your S7 or make it useless ; this could void your warranty with bitmain. It works! looking at the two files, seems the difference is 2-3 hex values that are modified. The method provided above works, but heres the easy way for those on windows: CAUTION: comparing the modified file against the original THAT WAS ON MY BATCH 8 shows a large number of differences, as does comparing my original with the "original" file uploaded above. The vast majority of changes seem to be incremental hex values: 4F becomes 4E, 83 becomes 82, 9A becomes 99, etc. not sure why though
SOLUTION: using a site like www.diffnow.com, compare the existing bitmain_spi.ko file with the modified one provided above. If there are only 2-3 changes its safe to change. If Its a batch8 system, Ive made a modified file here: https://mega.nz/#!wAcA3SrZ!2cVcpIR4qjJY2xmFvRREOMlVYFLk6YtzIxQNteGdWe0 (works to 10% fan, and with this the system runs fans at max when changing settings, as it did when stock) (based on this original (S7, B8): https://mega.nz/#!kYdC2bTD!kcBid6lMeN9ygYxJ2sprMhRBmDJ-bwaBO3ldZPCHWiU)
1) download the modified file above. 2) download and run winscp. 3) connect to miner (SCP mode, port 22, root/admin). navigate to folder: /lib/modules/3.8.13/kernel/drivers/bitmain/ 4) rename bitmain_spi.ko to bitmain_spi_original.ko 5) transfer the bitmain_spi_s7-fan_10.ko file to that directory, and then rename as bitmain_spi.ko 6) login to the miner's webUI. change fan setting there and "save&apply" Not sure if changing it this way will survive a reboot, but the process is simple to repeat. OPTIONAL: 7) copy the bitmain_spi_s7_fan_10.ko file to /config/bitmain_spi_s7_fan_10.ko  if modifications are lost on system restart, SSH in and type: cp /config/bitmain_spi_s7_fan_10.ko /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko # Copy the new file to the good place
/etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start #restart cgminer
interesting sidenote, when changing settings in the lanfeusst version, the fan goes quiet, then spins up (before it went full blast, then reduced speed) Nice  I guess you did the modification for the new firmware dated 2015-12-11. My S7 Batch 1 was with the 10-23 firmware that is why there is so many difference between our 2 files. That also means they finally fixed the burn to death issue with auto on the december firmware. Since it will now go full blast if it loses internet connection instead of going to 20% before on auto.
The sound is natural to an with such high rpm and airflow, dissipating 1200W+ in a short tube. The SP20 was equally loud, almost worst at full speeds, most people had to run it <900W if they wanted the fans to spin at a LESS-loud speed. same for gear like the S5, SP10/SP3x
With the software tweak to get fans <20%, noise is actually quite bearable. I have them machine fed 0C outside air, so can keep the volume down without much issue.
20% fan @ 4.7TH with 62-67C temperatures (board 3 is hottest?). noise is as good as the S3
17% fan @ 4.5TH. noise is totally acceptable to be in the main room
15% fan @ 4.3TH. quiet. similar to a game console or desktop computer that has loud(ish) fans
Happy to see you can enjoy nice silence now. |
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with the cold front moving into ontario, Ive been able to bring my inake temps down from ~5C to below 0C. Fans are at the lowest setting (doesnt seem to have go any slower than 15% PWM (2000-2100 rpm)) and board temperatures of around 54-62C using 681MHz/4.6TH
is it possible to get the PWM to go lower? If i enter 1%, 5%, 10% there's no noticed difference in volume.
With a proper fan controller they'd surely go lower, but bitmain probably set a lower limit. Could possibly be worked around by hacking the firmware, but that isn't worth it IMO. 2100 should be plenty quiet, and you want to make sure you have enough static pressure. i poked around in the SSH a bit and couldnt find anything obvious as for why it seems to not be affected by values <15% noise isnt bad, about equal to an S3 in a warm room, maybe a tad more 'penetrating'. With the cold air from outside, I can achieve good hashrates with a low fanspeed, but if i could get it 20% quieter at the cost of ~200GH I'd be happy to do so. Without the cold air from outside, low-rpm is far from sufficient if i am tageting a 55-60C operational temperature 20C (ambient) = 3.6TH 10C = 4TH 5C = 4.3TH 0C = 4.6TH -5C = 4.8TH (and 0.011% errors, havent pushed further yet) It is possible to go lower than 20% PWM with my modified bitmain_spi file : The only modification is that it can go to 10% min instead of 20% min. (You still need to set the fan percentage to what you want : example 18%) This allows to effectively decrease the noise from the s7 (totally silent if set at 10%) if you are in a very cold ambient temperature or if you downclock the frequency seriously It should not be used if the temperature is > 70°C. Check that the stop miner when temp is over 80°C box is checked in the configuration page. Download here : https://mega.nz/#!8BUVVa7K!pSyaXVVjxfkthPdgJUSabKQQaRiVi1s6-zct5Ob32iMThe original is here if you need it : https://mega.nz/#!MctVRR7D!lEEb0NvQQNtAemzYNawEAtp8qMVi75dxOLqwNFqv7ToTo use it : Change 192.168.0.16 with the IP address of your miner scp bitmain_spi_s7_fan_10.ko root@192.168.0.16:/config/ #Copy the file to the miner then ssh to the miner : ssh root@192.168.0.16then : cp /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko /config/bitmain_spi_original.ko #Makes a backup
cp /config/bitmain_spi_s7_fan_10.ko /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko # Copy the new file to the good place
/etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start #restart cgminer
#Wait 30 secondes Check the web page at 192.168.0.16, and if you set it to something lower than 20% you should be able to see the new lower fan speeds The modification will be gone if you restart your miner. If you want to do it again after a restart you only need to do the two last command : cp /config/bitmain_spi_s7_fan_10.ko /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko # Copy the new file to the good place
/etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start #restart cgminer
If my new binaries help you and you are satisfied, consider helping me by sending some bitcoins to my address: 1NfUptoShEtSD2SQV2f45Xr1bTysFnsHiU Warning: Do nothing you don't understand ; No warranties whatsoever are given by me ; this could not work or be useless ; this could burn your S7 or make it useless ; this could void your warranty with bitmain. |
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Interesting re B1 S7. It suddenly went from 4.79 Th to 3.65 Th for few hours (before I noticed) without any zeroes or temperature extremes. Soft reboot fixed the problem. two possibilities: some chips dropped out, but somehow boards did not show it or miner "got tired' and "decided" to take it easy This is one of the earliest B1 machines ever delivered (on day two of B1 delivery-9/24 or so)-hashing close to 3 months already, so it would be interesting if someone else observed the same. Happened to me once for a B1 delivered early too. Hashrate dropped to 2/3 for ~6 hours then it got back up to normal without me touching anything. I just saw the dip on the antpool website and the lower average hashrate on my S7 webpage. I thought it was the PSU acting weird. |
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Hello,
I am thinking of overclocking my S7 B6 (4,05TH/s) a bit. Is there a special thread for OC of S7?
If not, what can you recommend? It runs at 41°C while hashing at a Frequency of 600.
Thank you and kind regards
You should overclock to a frequency where you get > 0.001 % AND < 0.005 % HW error. (between 0.001% and 0.005%) This will allow you to get the best hashrate for your voltage. Wow, it seems I should underclock them. My S7 have around 0.0065% with default settings :-( It should be fine, just don't overclock it |
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Hello,
I am thinking of overclocking my S7 B6 (4,05TH/s) a bit. Is there a special thread for OC of S7?
If not, what can you recommend? It runs at 41°C while hashing at a Frequency of 600.
Thank you and kind regards
You should overclock to a frequency where you get > 0.001 % AND < 0.005 % HW error. (between 0.001% and 0.005%) This will allow you to get the best hashrate for your voltage. |
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Yes very nice, that's more like the sort of Overclock that we should be seeing. Technically according to the BM1385 Data Sheet with 12.8V you should be able to run 775MHz giving 6278GH/s  Although I would want the fans running flat out for that... Rich Yes I tried to go higher with frequency(and fans accordingly to stay ~ 70C) but it would give higher HW errors and lower hashrate so... I guess there are some losses trough the chains and the chips don't get the full voltage. |
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Here is some Overvolting - overclocking of my S7 Batch 1 with DPS-2000BB and J4bberwock breakout board.
Getting ~ 5660Gh/s, Voltage is 12.75 V under full load.
Power consumption at the wall is 1590Watt => 0.28J/Gh efficiency
I know it runs hot, but I need the silence.
AriesIV10 just mentioned this on the forum and they are right. The RPM's on your fans are WAY TO LOW! If it is on auto, take it off of auto and put it on manual to 100% as soon as possible. At least 80 or 85 percent minimum. My guess is you already have them on manual and need to increase the percentage. Thank you for the advice but I want to keep the noise at a minimum. The fan is set to manual at 28% If the temps goes > 75C, I will adjust the fan to 30%. Each 2% gives you ~ 4°C less temps. Furthermore I checked BM1385 temp rating and Bitmain indicates here that they can take up to 125°C (Operation temperature : max 125°C) : https://bitmaintech.com/files/download/BM1385_Datasheet_v2.0.pdfI know the temp sensor is not on the chips but on the boards but it should work fine I think (If chips are less than 45-50C over the temp sensor it should be good) |
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I'm trying to order an S7 and the PSU but I get this error:
"Can not buy different currency once"
I have Bitcoin selected.
Anyone know a fix for this?
You have to order the PSU and the miner separately. This is a bug on the bitmain website that is there for some time already. Thanks, when I try to order either item by itself I get: Unknown error: null Guess they don't want new orders lol. Weird, it works for me. (I just tried and got a bitcoin adress to send to) Try deleting your shopping cart then retry. |
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Thank you!
Also you should come mine at kano.is i'v been on antpool for ~6 months but moved on to kano, and with recent luck been getting %120~ of PPS it does have a ramp up time for a couple of days where you see decreased payouts but after that its great. He also pays out TX fees
Should really consider it!
I just did it I was considering it for a few days and after checking orphans there are better and also antpool doesn't pay mining fee so i will try it for a few days |
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I'm trying to order an S7 and the PSU but I get this error:
"Can not buy different currency once"
I have Bitcoin selected.
Anyone know a fix for this?
You have to order the PSU and the miner separately. This is a bug on the bitmain website that is there for some time already. Here is some Overvolting - overclocking of my S7 Batch 1 with DPS-2000BB and J4bberwock breakout board. Getting ~ 5660Gh/s, Voltage is 12.75 V Power consumption at the wall is 1590Watt => 0.28J/Gh efficiency I know it runs hot, but I need the silence. how do you have 5 pools slots ? To have more than 3 pools, you can't use the web interface. You need to edit /config/cgminer.conf by ssh and restart cgminer Example : Then to edit cgminer.conf And /etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start
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I'm trying to order an S7 and the PSU but I get this error:
"Can not buy different currency once"
I have Bitcoin selected.
Anyone know a fix for this?
You have to order the PSU and the miner separately. This is a bug on the bitmain website that is there for some time already. Here is some Overvolting - overclocking of my S7 Batch 1 with DPS-2000BB and J4bberwock breakout board. Getting ~ 5660Gh/s, Voltage is 12.75 V under full load. Power consumption at the wall is 1590Watt => 0.28J/Gh efficiency I know it runs hot, but I need the silence.  |
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50MW is not 400Ph/s, it is probably more 150Ph/s, or ~200Ph/s at most(at 0.25J/Gh efficiency) |
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about the Antminer S7
i would like to know if there is an option via software to silence the buzzer ?
if not is there a way to access the buzzer and silence it via hardware ?
please also tell me what situations make it buzz.
You can silence it by editing cgminer.conf by hand : ssh root@192.168.0.45
vi /config/cgminer.conf Then add to the file "bitmain-nobeeper" : true, so that you get "api-listen" : true,
"api-network" : true,
"api-allow" : "W:0/0",
"bitmain-nobeeper" : true,
... Then restart cgminer /etc/init.d/cgminer.sh stop
/etc/init.d/cgminer.sh start |
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