ANTMINER S3+ Discussion and Support Thread

[Collider]

You guys also need to take account that your s3 would last shorter if you overclock

Yes but on which basis? Degradation due to voltages? temperature of the chips? There is a higher chance of electric costs being more than the mining profits on these units for many before they die.
If the quality of these units are decent, hopefully they will last long like the heavily overclocked S1's floating out there.

yes, I see no real danger of a unit "lasting shorter", as it might influence the asic life cycle by around 20% adversely, but normal asics last 5 years easily.

Seeing as they shouldn´t be able to generate more than electricity cost in 1-2 years (conservative estimate), this really is nothing to worry about.

[1714607401]

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[1714607401]

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[1714607401]

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[messieuredouchebag]

I put a six gauge wire on a 70 amp circuit breaker, from my main 200 amp fuse box to a spare room, how many s3's will I be able to run on that circuit, air conditioner is on a separate 20 amp breaker.


thanks in advance

70amp double pole?  You can pull 56 constant amps through each wire at 120V each.

You could run about 34-36 S3's off that depending on how good your PSU's are.

It will get warm.

Stop right now. Call an electrician and get him/her to install a sub panel, tell the electrician your power needs. Do this before you burn your house down and void your insurance

edit: get permits and have it all inspected

in New Jersey,  USA

you don't need an electrician if you own the home and you live in it.  You do need a permit and an inspection.

Thats true in most US and Canadian jurasdictions. Still Call an electrician

It was installed by an electrician, and he did put in a sub-panel, I just need my batch 3 s3's to get here.

[Gogreen]

Yeah but having your miner queue work from 5minutes ago and gain nothing is also a waste.
Properly setting up a queue/scan-time/expiry can decrease the load of your unit and increase efficiency of the work done.
Proper settings isn't the dark age, it's just something that never is done right There is a reason these options are here for us to optimize with the specific hardware we use!

I wrote the software, I know what I'm talking about. You're barking up the wrong tree with scan time and expiry.

I'm not barking up any tree
You wrote a software and we use the optimal settings for the different hardware and pools we use. Correct?

queue of 4096 is not helping the S3 while a lower queue is, so I'm sorry if you misunderstood my post.

Should we just go put 99999 on all the settings and expect them to function the same?

Bitmain can you ran more test on these?

[visdude]

Based on the figures thown about on here, I gather that tweaking the S3 to achieve 500 GH/s increases the overall at-the-wall wattage by 32% with only a 14% increase in hash rate.  This 14% hash rate gain by itself also consumes more than twice the energy at 1.83 W/GH/s (2.38x more compared to the stock .77 W/GH/s).  Is it worth it?  Are we getting too carried away with tweaking and modding?  How do these figures affect ROI?  I can't help thinking that this is getting to be about interweb bragging rights on whose S3 achieves 0.5 TH/s.

Perhaps there are some hardcore mathematician/statistician among us that could elaborate on this subject.

It's actually ~20% power increase.  

Calculating ROI off one unit is just silly.
Look at the difficulty increase from 16.8 to 18.7 in past two weeks. It will continue to get worse. Every week-two weeks your ROI is going to get extended and extended.

If you pay for power or if you don't is the biggest factor in terms of ROI. Either way the small increase of hashrate at the current difficulty should give you multiples more of profit than it is a "power cost"

I'm not sure if you meant hash (rate) power or power consumed but I can't figure out where your 20% comes from.  I figure:

500GH/s - 440GH/s = 60GH/s
Therefore:  60GH/s / 440GH/s x 100 = 13.64% (rounded up to 14% increase in hash rate from stock 440GH/s)

450W - 340W = 110W
Therefore:  110W / 340W x 100 = 32.35% (rounded down to 32% increase in power consumption from stock 340W)

I don't think calculating off the most basic unit (a single S3) and extrapolating from it is silly.  In fact, it is a very sound method.

I agree that there is an advantage in OC'ing the S3 to a certain extent (depending on kWh rate) as the overall increase in power consumption is not that bad at 500GH/s (from 0.77 W/GH/s to 0.90 W/GH/s).

[Askit2]

Yeah but having your miner queue work from 5minutes ago and gain nothing is also a waste.
Properly setting up a queue/scan-time/expiry can decrease the load of your unit and increase efficiency of the work done.
Proper settings isn't the dark age, it's just something that never is done right There is a reason these options are here for us to optimize with the specific hardware we use!

I wrote the software, I know what I'm talking about. You're barking up the wrong tree with scan time and expiry.

I'm not barking up any tree
You wrote a software and we use the optimal settings for the different hardware and pools we use. Correct?

queue of 4096 is not helping the S3 while a lower queue is, so I'm sorry if you misunderstood my post.

Should we just go put 99999 on all the settings and expect them to function the same?

Here is the thing.
Queue is the number of work units to have ready in advance of need. 4k is high. 0 means everytime something runs out of work the CPU right then has to make new work. Having a queue of 1 means it sends work then makes one more.
Expiry is the time in seconds to hold delayed or un submitted work. 1 second means if it can't send immediately it's thrown away.
Scan time is the time that it can work off of given work units. Using stratum you will not need this lower as there is plenty of local work.
P2pool is different some. But for anyone not using it the defaults for cgminer are fine. It doesn't waste tons of bandwidth trying a new unit every second or throwing away work on any network delay. The queue is far above the default of 1.

[lenny_]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

[CHAOSiTEC]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

10 amp x 240 volt = 2400 watt

that is the standard in scandinavia..

[lenny_]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

10 amp x 240 volt = 2400 watt

that is the standard in scandinavia..

Do you have multimeter and checked it? What's device hashrate?

[Stinky_Pete]

I measure 661W at the wall for two AntMiners. UK, nominally 240V. Default settings on miners.

[CHAOSiTEC]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

10 amp x 240 volt = 2400 watt

that is the standard in scandinavia..

Do you have multimeter and checked it? What's device hashrate?

i was giving the max output atainable at the wall... im sorry, but i misread your question, my fault..

regarding the usage at the wall, depends heavily for your psu.. but i can give you an example for 3 antminer s1s (waiting for my s3s to arrive)

3x antminers s1 (all overclocked to 200) at wall : 1160 watt with 2xRM850 PSUs

[lenny_]

I have S1 and S2 stats already, but thanks
Now I'm trying to get S3 and other devices performance stats, any feedback will be helpful!

[Mudbankkeith]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

10 amp x 240 volt = 2400 watt

that is the standard in scandinavia..

you are forgetting the AC to DC conversion of 0.71

AC voltage 240volts * 0.71(RMS conversion) = 170.40 volts DC

watts = amps * volts in DC

1704 watts = 10 amps * 170.40 volts(RMS)

240 volts AC @ 10 amps only gives you 1704 watts

[CHAOSiTEC]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

10 amp x 240 volt = 2400 watt

that is the standard in scandinavia..

you are forgetting the AC to DC conversion of 0.71

AC voltage 240volts * 0.71(RMS conversion) = 170.40 volts DC

watts = amps * volts in DC

1704 watts = 10 amps * 170.40 volts(RMS)

240 volts AC @ 10 amps only gives you 1704 watts

ac to dc conversion depends on psu, some crappy psus will give a really bad conversion, while others give a better conversion

To more accurately calculate the actual RMS current flowing through the transformer, I could divide up the complete cycle into 6 or so time slices, estimate the current flowing during each time slice -- that's pretty easy when it's zero -- and then do the root-mean-square (RMS) calculation: square each current, average each of those squared values, weighted by the time that current was flowing, and then that the square root of that average. It might be quicker and more accurate to run a simulation with thousands of time-slices than to work it out by hand.

There are many techniques for reducing the RMS current through the transformer while supplying exactly the same power to the load. Electric power companies love those techniques, because their customers are just as happy (the load gets exactly the same power), they get paid the same amount of money (for customers that pay per kWh), and they can spend less money for transformers and long power lines (because higher RMS currents require bigger, heavier, more expensive transformers and power lines). Those techniques go by the general name of "power factor correction".

source: http://electronics.stackexchange.com/questions/51397/how-to-calculate-a-current-being-drawn-by-a-full-wave-rectifier-diode-bridge

your rms calculation is based off of finding the rms of loudspeakers, and the correct value is 0.707

edit: besides i was talking about the max current you can draw from a 10 amp outlet, not converson rate :-p

[hanti]

@lenny_

440GH/s 340W

[Mudbankkeith]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

10 amp x 240 volt = 2400 watt

that is the standard in scandinavia..

you are forgetting the AC to DC conversion of 0.71

AC voltage 240volts * 0.71(RMS conversion) = 170.40 volts DC

watts = amps * volts in DC

1704 watts = 10 amps * 170.40 volts(RMS)

240 volts AC @ 10 amps only gives you 1704 watts

ac to dc conversion depends on psu, some crappy psus will give a really bad conversion, while others give a better conversion

To more accurately calculate the actual RMS current flowing through the transformer, I could divide up the complete cycle into 6 or so time slices, estimate the current flowing during each time slice -- that's pretty easy when it's zero -- and then do the root-mean-square (RMS) calculation: square each current, average each of those squared values, weighted by the time that current was flowing, and then that the square root of that average. It might be quicker and more accurate to run a simulation with thousands of time-slices than to work it out by hand.

There are many techniques for reducing the RMS current through the transformer while supplying exactly the same power to the load. Electric power companies love those techniques, because their customers are just as happy (the load gets exactly the same power), they get paid the same amount of money (for customers that pay per kWh), and they can spend less money for transformers and long power lines (because higher RMS currents require bigger, heavier, more expensive transformers and power lines). Those techniques go by the general name of "power factor correction".

source: http://electronics.stackexchange.com/questions/51397/how-to-calculate-a-current-being-drawn-by-a-full-wave-rectifier-diode-bridge

your rms calculation is based off of finding the rms of loudspeakers, and the correct value is 0.707

edit: besides i was talking about the max current you can draw from a 10 amp outlet, not converson rate :-p

2 decimal places gives 0.71 (accurate enough)

The calculation I listed is for standard AC to DC transformers with rectifiers

Efficiency would be another calculation based on the power supply quality. (and would be the basis of an interesting and variable discussion)

[CHAOSiTEC]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

10 amp x 240 volt = 2400 watt

that is the standard in scandinavia..

you are forgetting the AC to DC conversion of 0.71

AC voltage 240volts * 0.71(RMS conversion) = 170.40 volts DC

watts = amps * volts in DC

1704 watts = 10 amps * 170.40 volts(RMS)

240 volts AC @ 10 amps only gives you 1704 watts

ac to dc conversion depends on psu, some crappy psus will give a really bad conversion, while others give a better conversion

To more accurately calculate the actual RMS current flowing through the transformer, I could divide up the complete cycle into 6 or so time slices, estimate the current flowing during each time slice -- that's pretty easy when it's zero -- and then do the root-mean-square (RMS) calculation: square each current, average each of those squared values, weighted by the time that current was flowing, and then that the square root of that average. It might be quicker and more accurate to run a simulation with thousands of time-slices than to work it out by hand.

There are many techniques for reducing the RMS current through the transformer while supplying exactly the same power to the load. Electric power companies love those techniques, because their customers are just as happy (the load gets exactly the same power), they get paid the same amount of money (for customers that pay per kWh), and they can spend less money for transformers and long power lines (because higher RMS currents require bigger, heavier, more expensive transformers and power lines). Those techniques go by the general name of "power factor correction".

source: http://electronics.stackexchange.com/questions/51397/how-to-calculate-a-current-being-drawn-by-a-full-wave-rectifier-diode-bridge

your rms calculation is based off of finding the rms of loudspeakers, and the correct value is 0.707

edit: besides i was talking about the max current you can draw from a 10 amp outlet, not converson rate :-p

2 decimal places gives 0.71 (accurate enough)

The calculation I listed is for standard AC to DC transformers with rectifiers

Efficiency would be another calculation based on the power supply quality. (and would be the basis of an interesting and variable discussion)

please see first highlight again :-)

second highlight, so true :-p

but then you would also have to include the rule about long time draw, and only use 80% of max output..

[Hunterbunter]

Does anyone have the weird problem where normal clocked s3's give 440 GH/s quite well, and overclocked S3's (to 250), give...440 Gh/s?

They do seem to start out faster, with a higher rate initially, but always seem to go back down to this level. I just don't understand why they would do that. Hardware errors are low in all cases. I'm using P2Pool, but I don't think that should have anything to do with it. Does anyone shed some light on the issue?

[zulover]

does the s3 still have a 90 day warranty?

[jelin1984]

Anyone have any coupons?

[oskuro]

Hello,

Can someone please tell me what is exact wattage at the wall (in Europe) using branded PSU, without any overclocking? And what is exact hashrate of the device (average) on panel and on mining pool?
I would like to add Antminer S3 to my small chart, showing efficiency of various ASIC miners. Thank you!

Check s3 oc thread. For me 721 watts 2 s3 in spain

https://bitcointalk.org/index.php?topic=699064.msg8034101#msg8034101