Topic: Antminer S5 - Underclock - Undervolt - Best J/GH - page 16. (Read 31123 times)
well your info is kind of too good to be true.
How about a few photos and screen shots to prove it?
If your info is true no one needs any new gear other then the s-5.
If you can do this a guy with 100 s-5's would be able to drop his power bill more then 50%
I am stunned your thread has not attracted more interest.
How about a few photos and screen shots to prove it?
If your info is true no one needs any new gear other then the s-5.
If you can do this a guy with 100 s-5's would be able to drop his power bill more then 50%
I am stunned your thread has not attracted more interest.
Not what has been reported so far, but my first tests show that reducing the Supply Voltage to an S5 does work.....
Have just taken delivery of a 2nd hand S5 and after some quick initial checks that everything was ok had a quick go at dropping the volts.
First, very early impression, is that things work as expected...
Tested at 125MHz with 9.0V at the connectors.
(Not wanting to tell people how to suck eggs, but perhaps those that are bragging about how much current they can push through a Molex connector, you need to measure the voltage that is actually getting to the board)
Only measured over a 30 Minute period the Hash was 440GH/s (a bit lower than expected, should be 470GH/s . Over the short time the rate was fluctuating quite a lot and needs further investigation)
Current from the supply (not the wall) was 12.1 Amps so 109 Watts
So that gives 109/440 = J/GH 0.248 Smiley
No xxx, HW error a bit higher than I would like to see @ 0.05%
Boots up and starts hashing at 9V, although to be fair it's 10V with no load because of the rubbish leads I am using on the adjustable PSU.
So a lot more tests to run but a better than expected start. Is it my S5, am I lucky, am I doing something wrong? Time and more measurements will tell.
Rich
Have just taken delivery of a 2nd hand S5 and after some quick initial checks that everything was ok had a quick go at dropping the volts.
First, very early impression, is that things work as expected...
Tested at 125MHz with 9.0V at the connectors.
(Not wanting to tell people how to suck eggs, but perhaps those that are bragging about how much current they can push through a Molex connector, you need to measure the voltage that is actually getting to the board)
Only measured over a 30 Minute period the Hash was 440GH/s (a bit lower than expected, should be 470GH/s . Over the short time the rate was fluctuating quite a lot and needs further investigation)
Current from the supply (not the wall) was 12.1 Amps so 109 Watts
So that gives 109/440 = J/GH 0.248 Smiley
No xxx, HW error a bit higher than I would like to see @ 0.05%
Boots up and starts hashing at 9V, although to be fair it's 10V with no load because of the rubbish leads I am using on the adjustable PSU.
So a lot more tests to run but a better than expected start. Is it my S5, am I lucky, am I doing something wrong? Time and more measurements will tell.
Rich
Thanks very much. I have grabbed it and will give it a go when I get a chance, busy Weekend here as it's my Grandsons Christening. Don't use command lines much these days 
but I guess it will all come back...
but I guess it will all come back...heheh, I included a batch file that has examples of the commands, so if you just edit that and double click on it, it should work fine for you - the only thing you'll probably need to do is change the IP address of the machine, then you'll be good to go.
Do I need to set anything in the S5 cgminer for it to accept the command line?
Have you written anything to explore / display the info in the log file?
Have you written anything to explore / display the info in the log file?
I haven't written anything yet to specifically do that, but I have been working on an app to do updates via SCP of the image I made for the A2 Terminator's, so I could make something that gets it via that. Is the log that useful for what you're doing? TBH I haven't even looked through it, although most of the OS hacking I've done so far is just on the A2...
Thanks very much. I have grabbed it and will give it a go when I get a chance, busy Weekend here as it's my Grandsons Christening. Don't use command lines much these days but I guess it will all come back...
Do I need to set anything in the S5 cgminer for it to accept the command line?
Have you written anything to explore / display the info in the log file?
Rich
but I guess it will all come back...Do I need to set anything in the S5 cgminer for it to accept the command line?
Have you written anything to explore / display the info in the log file?
Rich
I've made a commandline program (Windows, 64bit) to do the logging for you - you can grab it here:
http://www.analogx.com/files/cglog.zip
The usage is pretty straight-forward:
cglog /ip 192.168.3.226 /device "Antminer S5" /file "log.csv" /verbose
For /device you can specify either "Antminer S5" or "A2 Mega", since those are the only two types of miners I have, they're what it supports. While it's running, it will output this:
1:[PoolUsername][372]
Hash:1059.83 Errors:0 Temp1:54 Temp2:54 Freq:350 Shares:A145/0
The first line is the Pool 1 Username and how long the device has been running - the second line just gives some values that I'm usually interested in when running tests. The meat and potatoes are in the "log.csv" file, where I basically save most everything:
Date,Time,elapsed,ghs 5s,ghs av,hardware percent,found blocks,total mh,local work,utility,work utility,frequency,fan1,fan2,temp1,temp2,chain_acs1,chain_acs2,p1 getworks,p1 accepted,p1 rejected,p1 discarded,p1 stale,p1 get failures,p1 remote failures,p1 last share time,p1 diff,p1 diff1 shares,p1 difficulty accepted,p1 difficulty rejected,p1 difficulty stale,p1 last share difficulty
2015-08-14,23:32:07,439,1238.65,1133.38,0,0,497528533.0,300347,22.96,15875.86,350,2880,0,54,55,oooooooo oooooooo oooooooo oooooo ,oooooooo oooooooo oooooooo oooooo ,11,168,0,172,0,0,0,0:00:00,512,116152,121854.140625,0.0,0.0,511.992188
It uses the CGMiner JSON interface, so it might work with other miners that run with it. Once you run it, it will continue running until you hit a key, then it will shutdown and save everything. It will not erase the file output, it will append to it - so you can run it multiple times and not have to worry about renaming or deleting the csv file.
Anyway, let me know if you run into any issues or have anything you'd like for me to add, or logging data I might have missed.
http://www.analogx.com/files/cglog.zip
The usage is pretty straight-forward:
cglog /ip 192.168.3.226 /device "Antminer S5" /file "log.csv" /verbose
For /device you can specify either "Antminer S5" or "A2 Mega", since those are the only two types of miners I have, they're what it supports. While it's running, it will output this:
1:[PoolUsername][372]
Hash:1059.83 Errors:0 Temp1:54 Temp2:54 Freq:350 Shares:A145/0
The first line is the Pool 1 Username and how long the device has been running - the second line just gives some values that I'm usually interested in when running tests. The meat and potatoes are in the "log.csv" file, where I basically save most everything:
Date,Time,elapsed,ghs 5s,ghs av,hardware percent,found blocks,total mh,local work,utility,work utility,frequency,fan1,fan2,temp1,temp2,chain_acs1,chain_acs2,p1 getworks,p1 accepted,p1 rejected,p1 discarded,p1 stale,p1 get failures,p1 remote failures,p1 last share time,p1 diff,p1 diff1 shares,p1 difficulty accepted,p1 difficulty rejected,p1 difficulty stale,p1 last share difficulty
2015-08-14,23:32:07,439,1238.65,1133.38,0,0,497528533.0,300347,22.96,15875.86,350,2880,0,54,55,oooooooo oooooooo oooooooo oooooo ,oooooooo oooooooo oooooooo oooooo ,11,168,0,172,0,0,0,0:00:00,512,116152,121854.140625,0.0,0.0,511.992188
It uses the CGMiner JSON interface, so it might work with other miners that run with it. Once you run it, it will continue running until you hit a key, then it will shutdown and save everything. It will not erase the file output, it will append to it - so you can run it multiple times and not have to worry about renaming or deleting the csv file.
Anyway, let me know if you run into any issues or have anything you'd like for me to add, or logging data I might have missed.
Hi
Thanks for the links. I have a 40A variable, 5 to 15V PSU which is fine for testing except that I have to twiddle a knob. However this PSU is not efficient enough for Mining so I need to set to and see how much I can vary the voltage on one of the Server PSU's that I have. I think they are by far the best value for money, performance & relaibility you can get. If I can do that with a variable resistor somewhere than that can be replaced with a Digital Pot controlled by an Arduino and we then have programmable voltage. Just need to find the time in amongst all the other things i am trying to do...
Rich
Thanks for the links. I have a 40A variable, 5 to 15V PSU which is fine for testing except that I have to twiddle a knob.
However this PSU is not efficient enough for Mining so I need to set to and see how much I can vary the voltage on one of the Server PSU's that I have. I think they are by far the best value for money, performance & relaibility you can get. If I can do that with a variable resistor somewhere than that can be replaced with a Digital Pot controlled by an Arduino and we then have programmable voltage. Just need to find the time in amongst all the other things i am trying to do...Rich
Have you seen this:
http://www.electronics-tutorials.ws/blog/variable-voltage-power-supply.html
Might be worth hacking together to give you some more flexibility...
http://www.electronics-tutorials.ws/blog/variable-voltage-power-supply.html
Might be worth hacking together to give you some more flexibility...
Thanks for the offer but at the moment I do not have a PSU that is programmable for voltage. If I can come up with something it would be a nice idea. However I would like to try your logging program as would definitely help in the testing and measuring I am doing at the moment.
Rich
However I would like to try your logging program as would definitely help in the testing and measuring I am doing at the moment.Rich
Monitoring software sounds great, could save a lot of time listening to the S5... Just need an extension to cope with varying the supply voltage.
How do you want to interact with it? Right now it's part of a larger program I'm writing, but I could easily make a commandline one that you'd just specify the IP/port and it would just start logging - does that work for you? It's Windows-based also, FWIW.
Monitoring software sounds great, could save a lot of time listening to the S5... Just need an extension to cope with varying the supply voltage.
Rich
Rich
If you're interested, I wrote some programs to specifically do power monitoring and tests on the S5 - one program does realtime logging to a CSV file from the Watts Up Pro Meter (1s resolution), the other one runs the S5 through all the clock speeds, from the lowest all the way up to 450, at each clock speed it runs for 15 minutes to let it stabilize. I have one more app that connects to CGMiner and logs all of it's data (5s resolution), so you can see all of the characteristics and what they do. The full test takes about 12 hours to run on a machine, but my objective was to be able to build machine profiles, and see what kind of variation I had among my S5's.
Lately I've been focused on the A2's, so haven't given the S5's as much TLC as I normally do...
Lately I've been focused on the A2's, so haven't given the S5's as much TLC as I normally do...
Have done a lot more measurements at different frequencies & voltages and have got to say that testing an S5 on the bench at the higher frequencies is horrendous and has being doing my head in...
However at the lower frequencies it's quite bearable. 150MHz, 9.5V, Fan 1920rpm & 32 Deg.
Interesting to compare it to a typical overclocked S3 @ 0.5TH
Rich
However at the lower frequencies it's quite bearable. 150MHz, 9.5V, Fan 1920rpm & 32 Deg.
Interesting to compare it to a typical overclocked S3 @ 0.5TH
Code:
MHz W GH J/GH
S3 237 394 500 0.788
S5 150 143 500 0.285
Rich
I have tried a couple of Software reboots and a complete power down and restart at 9V and everything was fine, have not tried starting with the miner completely cold.
As I was not going to have to listen to the noise I adjusted the Supply voltage and clock up a bit for an overnight run. Ran for 8 Hours with 7 HW Errors. Here were the settings.
Frequency 225MHz
Supply Voltage 10.6V
Current from Supply 24.5A
Power 260W
Average Hash 735GH/s
0.353 J/GH
So again about right looking at the BM1384 data sheet.
Will make some more measurements Today, but need also to set to on seeing if I can adjust a Server PSU to a lower voltage?
Rich
As I was not going to have to listen to the noise I adjusted the Supply voltage and clock up a bit for an overnight run. Ran for 8 Hours with 7 HW Errors. Here were the settings.
Frequency 225MHz
Supply Voltage 10.6V
Current from Supply 24.5A
Power 260W
Average Hash 735GH/s
0.353 J/GH
So again about right looking at the BM1384 data sheet.
Will make some more measurements Today, but need also to set to on seeing if I can adjust a Server PSU to a lower voltage?
Rich
I think MrTeal reported the 11V reliability floor, and I trust him to know what he's doing. What board version is that? I only have access to some partly-working V1.3 PCBs with six level-shifter diodes, but I've seen some others (not sure what PCB rev) with only five. I haven't checked what the difference is.
Also, I'm really surprised you got 0.25W/GH out of it with the extra fan and controller current.
Also, I'm really surprised you got 0.25W/GH out of it with the extra fan and controller current.
Yes in the last couple of Weeks while getting the best I could from an S3 I read everything I could find on dropping the voltage to an S5 and it did not look too hopeful. So yes I was very surprised at the result. Having let it run a bit longer I think the Hash rate is a bit lower than I reported, closer to 410GH, but still a good result and still running after 3 Hours.
I have a 40 Amp 3-15V variable PSU, not efficient enough for mining, but fine for testing.
Rich
Not what has been reported so far, but my first tests show that reducing the Supply Voltage to an S5 does work.....
Have just taken delivery of a 2nd hand S5 and after some quick initial checks that everything was ok had a quick go at dropping the volts.
First, very early impression, is that things work as expected...
Tested at 125MHz with 9.0V at the connectors.
(Not wanting to tell people how to suck eggs, but perhaps those that are bragging about how much current they can push through a Molex connector, you need to measure the voltage that is actually getting to the board)
Only measured over a 30 Minute period the Hash was 440GH/s (a bit lower than expected, should be 470GH/s . Over the short time the rate was fluctuating quite a lot and needs further investigation)
Current from the supply (not the wall) was 12.1 Amps so 109 Watts
So that gives 109/440 = J/GH 0.248 Smiley
No xxx, HW error a bit higher than I would like to see @ 0.05%
Boots up and starts hashing at 9V, although to be fair it's 10V with no load because of the rubbish leads I am using on the adjustable PSU.
So a lot more tests to run but a better than expected start. Is it my S5, am I lucky, am I doing something wrong? Time and more measurements will tell.
Rich
Have just taken delivery of a 2nd hand S5 and after some quick initial checks that everything was ok had a quick go at dropping the volts.
First, very early impression, is that things work as expected...
Tested at 125MHz with 9.0V at the connectors.
(Not wanting to tell people how to suck eggs, but perhaps those that are bragging about how much current they can push through a Molex connector, you need to measure the voltage that is actually getting to the board)
Only measured over a 30 Minute period the Hash was 440GH/s (a bit lower than expected, should be 470GH/s . Over the short time the rate was fluctuating quite a lot and needs further investigation)
Current from the supply (not the wall) was 12.1 Amps so 109 Watts
So that gives 109/440 = J/GH 0.248 Smiley
No xxx, HW error a bit higher than I would like to see @ 0.05%
Boots up and starts hashing at 9V, although to be fair it's 10V with no load because of the rubbish leads I am using on the adjustable PSU.
So a lot more tests to run but a better than expected start. Is it my S5, am I lucky, am I doing something wrong? Time and more measurements will tell.
Rich
How did you go about reducing the voltage?
Not what has been reported so far, but my first tests show that reducing the Supply Voltage to an S5 does work.....
Have just taken delivery of a 2nd hand S5 and after some quick initial checks that everything was ok had a quick go at dropping the volts.
First, very early impression, is that things work as expected...
Tested at 125MHz with 9.0V at the connectors.
(Not wanting to tell people how to suck eggs, but perhaps those that are bragging about how much current they can push through a Molex connector, you need to measure the voltage that is actually getting to the board)
Only measured over a 30 Minute period the Hash was 440GH/s (a bit lower than expected, should be 470GH/s . Over the short time the rate was fluctuating quite a lot and needs further investigation)
Current from the supply (not the wall) was 12.1 Amps so 109 Watts
So that gives 109/440 = J/GH 0.248 Smiley
No xxx, HW error a bit higher than I would like to see @ 0.05%
Boots up and starts hashing at 9V, although to be fair it's 10V with no load because of the rubbish leads I am using on the adjustable PSU.
So a lot more tests to run but a better than expected start. Is it my S5, am I lucky, am I doing something wrong? Time and more measurements will tell.
Rich
Have just taken delivery of a 2nd hand S5 and after some quick initial checks that everything was ok had a quick go at dropping the volts.
First, very early impression, is that things work as expected...
Tested at 125MHz with 9.0V at the connectors.
(Not wanting to tell people how to suck eggs, but perhaps those that are bragging about how much current they can push through a Molex connector, you need to measure the voltage that is actually getting to the board)
Only measured over a 30 Minute period the Hash was 440GH/s (a bit lower than expected, should be 470GH/s . Over the short time the rate was fluctuating quite a lot and needs further investigation)
Current from the supply (not the wall) was 12.1 Amps so 109 Watts
So that gives 109/440 = J/GH 0.248 Smiley
No xxx, HW error a bit higher than I would like to see @ 0.05%
Boots up and starts hashing at 9V, although to be fair it's 10V with no load because of the rubbish leads I am using on the adjustable PSU.
So a lot more tests to run but a better than expected start. Is it my S5, am I lucky, am I doing something wrong? Time and more measurements will tell.
Rich
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