My S7-LN has 2 boards. PSU is a Cougar GX 1,000 Gold. The PSU itself pulls just shy of 100 watts.
Frequency is currently set at 500 - 2.2 TH/s - Pulling 990 watts. So the miner itself is using 890 and the PSU 100.
When I turn the frequency up to 600 I get - 2.8 TH/s - Pulling 1,200 watts. So the miner itself is using 1,100 and the PSU 100.
I am getting very similar results on my other S7-LN. I thought it may have been the PSU so I put an old APW3++ PSU on this unit. Although the PSU uses more wattage, the miner is pulling similar power.
Topic: Bitmain New Miner S7-LN 2.7T @697W discussion (Not official) (Read 23303 times)
February 05, 2020, 08:22:24 PM
well let me ask you. does your miner have two boards or three boards.
when your kwatt meter runs are 900 watts are you getting 3.6 th hash rate.
or do you get 3.0 th hashtate..?
your numbers seem wrong.
when your kwatt meter runs are 900 watts are you getting 3.6 th hash rate.
or do you get 3.0 th hashtate..?
your numbers seem wrong.
February 05, 2020, 07:31:01 PM
I just purchased two of these. I like that they run on 110v and my house uses electric heat. My wife lets me use them since they are quiet. 
Question on power. I understand the default frequency is 600 and powered via a 1,000 watt PSU. However, when plugged into a Kill-A-Watt, in order to get it under 1,000 watts, I need to set the frequency to 450 which keeps it around 900 watts (for some safety).
How can the default be 600 when it pulls in excesses of 1,000 watts when using the default frequency?
Question on power. I understand the default frequency is 600 and powered via a 1,000 watt PSU. However, when plugged into a Kill-A-Watt, in order to get it under 1,000 watts, I need to set the frequency to 450 which keeps it around 900 watts (for some safety).
How can the default be 600 when it pulls in excesses of 1,000 watts when using the default frequency?
February 05, 2017, 08:42:55 AM
Hmm that looks like the soft way to do it. I will try it out.
Thanks!
Thanks!
February 03, 2017, 05:09:12 PM
Any way to do it by software? (remotely)
https://bitcointalksearch.org/topic/m.16108040
Review beep = false
February 03, 2017, 04:57:09 PM
Any way to do it by software? (remotely)
I think the idea is that you have access to your property?
February 03, 2017, 04:39:36 PM
Any way to do it by software? (remotely)
February 03, 2017, 02:46:46 PM
Yeah, it's easy. Look for something like this: http://shallowsky.com/arduino/class/buzzer.jpg on the control board. Small drop of glue in the hole and it's nice and quiet... well, at least the beeper will be!
Way easier than I thought. Thank you
February 03, 2017, 01:57:06 PM
Yeah, it's easy. Look for something like this: http://shallowsky.com/arduino/class/buzzer.jpg on the control board. Small drop of glue in the hole and it's nice and quiet... well, at least the beeper will be!
February 03, 2017, 01:15:21 PM
Is there a way to disable the beeping sound when the miner loses internet connectivity?
a little crazy-glue in the hole will quiet that piezo right up!Where is it located? Easy to do this?
February 03, 2017, 12:21:03 PM
Is there a way to disable the beeping sound when the miner loses internet connectivity?
a little crazy-glue in the hole will quiet that piezo right up! February 03, 2017, 09:05:12 AM
Is there a way to disable the beeping sound when the miner loses internet connectivity?
December 15, 2016, 12:22:35 AM
I've got two that have been modded. They run for about a week then I lose a board. I turn it off and then on and it comes back for about a week. If you're hosting them at home and keep an eye on them, then it's not much of a problem. This happens only to the modded ones though.
That is not exactly true. Both of my units are unmodded and they only last between 7 and 14 days before requiring a restart due to a board dropout.try my script in the last page of the modding thread..
https://bitcointalksearch.org/topic/m.16518866
just change 290000 to 190000 or so.
oh also if yours isnt modded change the starting pwm to whatever you have your fans set to.. 60 or 70 should be ok. also make sure the customize fan speed box is checked for it to adjust the fans to keep the temp between 60-65.
it does, quite nice too..
the script is set to reboot the s7s every 6 hours or when a board drops out..
its also set to keep the temp between 60-65.
it also makes a log in the /config/ folder called hashcheck.txt
December 15, 2016, 12:01:39 AM
I've got two that have been modded. They run for about a week then I lose a board. I turn it off and then on and it comes back for about a week. If you're hosting them at home and keep an eye on them, then it's not much of a problem. This happens only to the modded ones though.
That is not exactly true. Both of my units are unmodded and they only last between 7 and 14 days before requiring a restart due to a board dropout.try my script in the last page of the modding thread..
https://bitcointalksearch.org/topic/m.16518866
just change 290000 to 190000 or so.
oh also if yours isnt modded change the starting pwm to whatever you have your fans set to.. 60 or 70 should be ok. also make sure the customize fan speed box is checked for it to adjust the fans to keep the temp between 60-65.
December 14, 2016, 11:55:32 PM
I've got two that have been modded. They run for about a week then I lose a board. I turn it off and then on and it comes back for about a week. If you're hosting them at home and keep an eye on them, then it's not much of a problem. This happens only to the modded ones though.
That is not exactly true. Both of my units are unmodded and they only last between 7 and 14 days before requiring a restart due to a board dropout.try my script in the last page of the modding thread..
https://bitcointalksearch.org/topic/m.16518866
just change 290000 to 190000 or so.
oh also if yours isnt modded change the starting pwm to whatever you have your fans set to.. 60 or 70 should be ok. also make sure the customize fan speed box is checked for it to adjust the fans to keep the temp between 60-65.
December 14, 2016, 11:52:51 PM
I've got two that have been modded. They run for about a week then I lose a board. I turn it off and then on and it comes back for about a week. If you're hosting them at home and keep an eye on them, then it's not much of a problem. This happens only to the modded ones though.
That is not exactly true. Both of my units are unmodded and they only last between 7 and 14 days before requiring a restart due to a board dropout. December 14, 2016, 12:44:23 PM
I've got two that have been modded. They run for about a week then I lose a board. I turn it off and then on and it comes back for about a week. If you're hosting them at home and keep an eye on them, then it's not much of a problem. This happens only to the modded ones though.
in the hacking thread i posted a small script that automates this.
for the LN just change the min speed from 290000 to 190000 or so.
December 14, 2016, 12:06:09 PM
I've got two that have been modded. They run for about a week then I lose a board. I turn it off and then on and it comes back for about a week. If you're hosting them at home and keep an eye on them, then it's not much of a problem. This happens only to the modded ones though.
December 14, 2016, 10:03:06 AM
See this
https://bitcointalksearch.org/topic/hacking-the-s7-improving-efficiency-through-minor-hardware-manipulation-1504228
Most people have issues with it running too cold and shutting off chips.
https://bitcointalksearch.org/topic/hacking-the-s7-improving-efficiency-through-minor-hardware-manipulation-1504228
Most people have issues with it running too cold and shutting off chips.
December 14, 2016, 09:54:15 AM
260eur shipped each, not cheap but with vat and import taxes it's actually pretty nice. Not doing this for ROI, mostly for "free" heat and because I make enough eth to cover the loss I'm running them at 
Any info on the temps I should run them for optimal performance ?
Cheers,
Q.
Any info on the temps I should run them for optimal performance ?
Cheers,
Q.
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