ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH

[-droid-]

Weird

If you click the s7 banner on antpool dashboard it lets you buy a batch 3 unit.. Brought me all the way through checkout and to the purchase part with the custom wallet addy to send the coins.. Even got an email for it to complete my purchase

Of course I'm not gonna gamble my BTC and actually pay the order, I'm pretty sure it's just a glitch and someone forgot to edit the banner and remove batch 3 page

[UfoRia]

I have three dedicated 240v runs that have three s7's running from three PDU's. Based on sag from a calculator I used online and other insight I was educated that three at full load would be the max I could run.

If I hit greater than 80% usage with 10awg wires on each 240v breaker, will it cause a potential for fire? Could I add a some of the lower s7's to fill in the difference between the sag limit for continuous load?

[marvykkio]

Not sure if this has already been mentioned in the thread:

BITMAIN did correct the specifications on Batch 6 to say the following:  "5. Chip quantity per unit: 135 x BM1385"

I still find it confusing it says:

2. Power Consumption: 1042 W + 10% (at the wall, with APW3, 93% efficiency, 25C ambient temp)

3. Power Efficiency: 0.25 J/GH + 10% (at the wall, with APW3, 93% efficiency, 25°C ambient temp)

The reason this is confusing to me is because it does not say, "+/-" but only "+"



The BM1385 chip is capable of 32.5 GHS per chip at just 0.216 Watts of power usage per GHS with 0.66V core voltage.

I'm just totally confused at the moment.  Can someone chime in to help me understand if it is 1042 watts at the wall @ 600MHz or 1,146.2 watts (+10%) ??

The same instant bitmain put up b6 up, and was ignored like I usually am.
https://bitcointalk.org/index.php?topic=1165628.msg12893262#msg12893262
and another post regarding efficiency 2 posts down

In a way or another this last batch isn't as efficient as all previous s7. Up to (not saying it IS) 15% less efficient I'd say. And not a single word has been mentioned by them regarding this and they couldn't even put actual efficiency. They just put this "+" stuff to misguide people.

What do you expect? Really, Bitmain is the only manufacturer of mining equipment for the "Home" miner. They have the monopoly and can do whatever they please. Their mentality is - If you don't like their policies and practices, well, go find another manufacturer.

Till there is real competition, expect this crap.

My opinion is .... there is a lot of instability within the chip. That is why there are so many different versions, hashrates and clock speeds. So instead of just tossing the QC failed boards, they have been individually testing each hashboard to grade the board for the different batches therefore mitigating their production losses.

This board with less chips, lower hashrate, but with greater power usage, My guess would be this was the original batch 1 that just absolutely failed expectations and resulted a re-design leading to the boards that are in the B1,B2,B3 etc .... They did say they had a very limited number of them.

It would make sense considering their past behavior of recycling the QC fails.

well said, bitmain can do whatever he wants, but if any of us buy products from them will learn that you have to respect their customers, in fact I'm not buying more hardware bitcoin.

1) I do not like the policy bitmain.
2) the price is too high.
3) the material is too poor.
4) If you pay in bitcoin not least I have to pay shipping.
5) must declare a lower price to save us in duties.
6) 90-day warranty are too few
7) for international users should have a distributor for Europe to pay less tax.

there is a dealer in europe, but the price is 2 times more expensive.
9) fails when a miner shipping charges to the customer, saying state as the price $ 15, cosiloro not pay customs duties.

as for me, bitmain is only a thief, greedy for money, and has no respect for its customers.
but on what you altronte pretente by a Chinese?

[willi9974]

are the S7 4,86THs version sold out at the moment?
coming a new batch in the future?
if a other hardware on the world, thas is also so good as the S7?

Best Regards
Willi

[RichBC]

are the S7 4,86THs version sold out at the moment?
coming a new batch in the future?
if a other hardware on the world, thas is also so good as the S7?

Best Regards
Willi

They are all sold out except for the Batch 6, 4.05TH version. The interesting question will be, are we going to see any more 4.86TH units or are all future S7 going to 4.05TH?


Rich

[Hannu]

Theres water cooling system for it?   Money is solution on lot of problems   I work on weeks, not getting job for weekends  
60% tax in nightshift etc

[Hannu]

I have three dedicated 240v runs that have three s7's running from three PDU's. Based on sag from a calculator I used online and other insight I was educated that three at full load would be the max I could run.

If I hit greater than 80% usage with 10awg wires on each 240v breaker, will it cause a potential for fire? Could I add a some of the lower s7's to fill in the difference between the sag limit for continuous load?

WOW! Is photo in your garage  How much working hours that cost, have you count it? (Personal question)

[carlosmnk]

are the S7 4,86THs version sold out at the moment?
coming a new batch in the future?
if a other hardware on the world, thas is also so good as the S7?

Best Regards
Willi

Probably yes, in near future there is the avalon 6, in sometime (early next year) will be the B-Eleven and also we will have the spondoolies SP-50 (last one does 110.000 Gh/s...), but S7 is good enough right now... in some time we will know more...

[wolfen]

I have three dedicated 240v runs that have three s7's running from three PDU's. Based on sag from a calculator I used online and other insight I was educated that three at full load would be the max I could run.

If I hit greater than 80% usage with 10awg wires on each 240v breaker, will it cause a potential for fire? Could I add a some of the lower s7's to fill in the difference between the sag limit for continuous load?

WOW! Is photo in your garage   How much working hours that cost, have you count it? (Personal question)

I find the breakers get pretty hot at 80% at home.
Wires pretty cool.
Datacenter voltage is 208v so one s7 pulls 6 amps at 208v. An s5 pulled 3amps.
Of their 30amp circuit I am only allowed to pull 21.6 amps as per their safety concerns.
So I can put 12 in a rack with four feeds.
It seems to blow hotter out of the back than 24 s5's did in the same rack using the same amps.
At home I would be very careful about using too much on a circuit. I used to feel the breakers all
the time for heat.

Nice clean safe setup by the way.

[dmwardjr]

If I hit greater than 80% usage with 10awg wires on each 240v breaker, will it cause a potential for fire? Could I add a some of the lower s7's to fill in the difference between the sag limit for continuous load?

If the 10 AWG wire was inside walls or conduit you will want to keep it down to 80%.  Heat generated from the current flow in the wire cannot be ventilated out of a wall or conduit.  Which means there is increased risk of wires over heating and the insulation potentially melting down.  It also depends on the insulation of your wire.  Some insulation will break down [due to heat] faster than others.  Especially, inside enclosed places that lack ventilation [such as, walls and conduit].  Wire that is not inside of walls or conduit can generally be run up to 100% of the rating of the wire.  If you feel safer not running your circuits to 100% if they are not inside walls or conduit, that is fine.  Better safe than sorry!

BY THE WAY, Love the "clean" setup. Are the S7's joined together with the tongue and grooves or just sitting next to one another?

[UfoRia]

WOW! Is photo in your garage   How much working hours that cost, have you count it? (Personal question)

I had over a month to wait on them to arrive and a month to do a bunch of the pre-work. I also luckily have a room attached to my garage, so I can use my garage as a muffler and a natural heat baffle/vent.

I had help with the electrical runs from a family member, but running a 100 amp sub-panel off of the main and the 10awg wire to three L630R's was about five hours.

Mounting the wall board and pdu's about an hour.

Moving the shelving unit to a spot that vents into the garage, finding a good height for the shelves, drilling holes for wires, then cutting a hole in the sheetrock took around three hours.

Putting everything together once I got it all in not listed above, about fifteen hours or so.


Ufo

[UfoRia]

If the 10 AWG wire was inside walls or conduit you will want to keep it down to 80%.  Heat generated from the current flow in the wire cannot be ventilated out of a wall or conduit.  Which means there is increased risk of wires over heating and the insulation potentially melting down.  It also depends on the insulation of your wire.  Some insulation will break down [due to heat] faster than others.  Especially, inside enclosed places that lack ventilation [such as, walls and conduit].  Wire that is not inside of walls or conduit can generally be run up to 100% of the rating of the wire.  If you feel safer not running your circuits to 100% if they are not inside walls or conduit, that is fine.  Better safe than sorry!

BY THE WAY, Love the "clean" setup. Are the S7's joined together with the tongue and grooves or just sitting next to one another?

Yes, I used the tongue and groove connections. Made cable management much easier, as well as cfm airflow management much easier.

The three 10awg runs are all in uninstalled walls, just stapled along the twenty foot path from the sub-panel  to the L630R's. In Texas we can't AC our unattached garages that aren't AC controlled, otherwise mold becomes a huge issue and we generally won't bother with sheetrocking the walls. Some newer houses do, but my house is forty years old.

I build/design/manage datacenters/call centers for a living, so I am somewhat anal when it comes to things being tidy and in order. The switch will be replaced with another Juniper switch I have since I noticed if I saturate the network above 60% with audio/video conversion or 3d modeling jobs it causes the miners to disconnect and start alarming on that Netgear non-managed switch. I am putting them all in a VLAN and putting them in the DMZ of my ASA.

I have another 240v 30amp run to the AC in that room I am not using that's to the left of the wall in the picture, so I was debating about adding another PDU off of that plug after changing it to a L630R, then add four s7's on it and another S7 on each existing PDU. At least during the winter months, then change it back to an AC plug when it warms up and then selling the extra seven S7's since fighting that amount of BTU in a Texas summer will be difficult.


Ufo

[klondike_bar]

^you can get away with a bit more than 80% load, but i would absolutely not exceed 90%. for the risks it creates, you may as well just install another breaker+wire run, instead of risking a failure in your wiring.

[UfoRia]

^you can get away with a bit more than 80% load, but i would absolutely not exceed 90%. for the risks it creates, you may as well just install another breaker+wire run, instead of risking a failure in your wiring.

That's the way I am leaning right now since if a fire did start it wouldn't be to code and insurance would have a valid argument. I guess I will simply use the wire for the 240v run for the unused AC during the winter, seems better than gambling with fire and code violations.

Thanks for the banter, it helped convince me not to overload the PDU's marginally.


Ufo

[sloopy]

^you can get away with a bit more than 80% load, but i would absolutely not exceed 90%. for the risks it creates, you may as well just install another breaker+wire run, instead of risking a failure in your wiring.

+1

I would never use 100%.
It cannot serve any purpose but to screw you in the long run.
Make a small mistake, and take a chance? No way.

Very nice setup, what temps are you getting in Texas right now?

[dmwardjr]

^you can get away with a bit more than 80% load, but i would absolutely not exceed 90%. for the risks it creates, you may as well just install another breaker+wire run, instead of risking a failure in your wiring.

Yes, I agree.  Better safe than sorry!  I only wanted to share my experience with running at 100% myself on PVC (Polyvinyl Chloride) insulated wiring.  This is the type of wiring generally used inside a home.  It's the type of wiring I purchased for my setup.   Mine is not inside of walls or conduit.  

PVC wire heat resistance [On a scale from 1 to 5] is 2.  Which means the insulation of the wire would be considered a little below average [or fair] in its ability to withstand heat.  Especially, over long periods of time inside of a non-ventilated space like walls and/or conduit.  Hence, the reason why I've said I would not push this wire over 80% if it's inside of walls or conduit.  The normal temperature rating for PVC wiring can range from 60C, 75C, 90C.  Usually, the temperature rating is noted on the packaging but not always.  My 10 AWG (10/2) wiring is rated at 90C (194F).  Even 60C is 140 degrees Fahrenheit.

When I ran my four (4) 30A circuits on 10/2 PVC wiring part of the summer at 95 to 100 percent, the wire and outlets worked well.  They did not get too hot to the touch at all.  I could keep my hand on them without having to take my hand off.  They felt warm but not hot.  Remind you, my wiring for my rigs is not within walls.  I DO NOT RECOMMEND doing what I did if your wiring is within walls or conduit.  I have since added another 30A circuit to allow me to run my circuits at 80 percent instead of 95 to 100 percent.

The only reason I've mentioned this is to say what the wire is capable of handling if not inside walls and/or conduit.  Am I telling people to do this?  No!  I'm only informing people of what can actually be done with the wire.  I personally believe it would be beneficial to stay on the side of caution by adding an additional circuit(s) to keep them all at 80 percent or lower.  Especially, if your circuits are inside of walls and/or conduit.  I personally, will run my 30A circuits at 85% when I get all of my S7's.  Remind you, my circuits are NOT inside walls and/or conduit.

So, don't think I'm advocating for everyone to run their circuits at 100 percent.  I would say you could if your circuits were not inside of walls and/or conduit but I would only do it for a short time as I did myself.  I put off adding another circuit for approximately 40 to 45 days.  My wiring and outlets performed well and did not get too hot at 95 to 100 percent load until I added another circuit.  That's all I'm saying...

EDIT:  The main reason I would NOT recommend running at 95% or higher on this wiring for a long period of time is because air is a poor insulator.  Without shielding the strands or even solid wire, an electrical potential can over-stress these air voids between the strands or between multiple conductor(s) and the outer shield of those conductors.  This air breaks down or ionizes, going into what's called, corona (partial discharges). This will form ozone and can chemically deteriorate cable insulation over time. If you bought high dollar wiring with semi-conductive strand shielding, It can eliminate this potential by “shorting out” the air.  

I mention this a lot in my training when the subject comes up about using alligator meter clips with a bed of nails that penetrates the insulation to have contact with the conductors for testing purposes.  I explain when the insulation is damaged, an ionization process can occur from exposure to more air [Especially damp air] to emphasize the importance of cutting off the portion of wire they damaged with their meter clips and re-splicing to avoid having potential problems with that circuit in the near future.  Those meter clips with a bed of nails are responsible for many of the opens they have in the local telephone loop.  Most opens begin at a low resistance value and they increase in resistance as the copper wire gets smaller in diameter over time due to this ionization and electrolysis.

http://www.amazon.com/Alligator-Clip-Nail-Angled-Medium/dp/B00M1V7E5A/ref=sr_1_1?ie=UTF8&qid=1447014797&sr=8-1&keywords=bed+of+nails+clip



So, again, I'm NOT advocating individuals load their circuits at 85% or higher OVER LONG PERIODS OF TIME!  I see I need to be more specific when I elaborate on a subject because it can be taken the wrong way at times.  If you are in your initial setup and or install and your wiring is NOT inside walls and/or conduit, one could load their circuits greater than 80 percent without much fear if it's for a short period of time.  The longer your circuits have a load over 80%, the life of the insulation for the circuits can deteriorate over time.  This deterioration can result in the insulation being more susceptible to higher temperatures and thereby reduce its ability to withstand heat over time.

So, if you would like to mine with more rigs but don't have all of your circuits installed yet, you could do so for a short period of time [under certain conditions] until you have the other circuits installed for those rigs to get everything within a 75% to 80% limit.  That's all I'm implying.  I've done this myself while putting my setup together.  Remind you:  MY WIRING IS NOT WITHIN WALLS AND/OR CONDUIT!  My setup is completed now and enough circuits are installed for the amount of rigs I have at present to keep me at 85% or less.  I feel 85% is plenty safe for my install because my install does not have wiring within walls and/or conduit.

When I add more power to my setup for more rigs in the next month or so, I will add enough circuits to keep them around 80% or less.  I'm presently running my circuits at 67%.  Each 15A breaker on my 30A metered PDU's say they are running at 10 amps [Approximately 66/67 percent].  When I get more S7's (batch 6) at 1042 watts each, I will run them at 5 x S7's per 30A PDU.  This will be  72 percent of its maximum.  I would probably be fine with 6 x S7's (batch 6) at 86.6 percent of it's maximum for a short period when it gets close to time for the move to a new location for my setup.

When I do move my setup to another location, I will have every circuit at 80% or less.

[UfoRia]

+1

I would never use 100%.
It cannot serve any purpose but to screw you in the long run.
Make a small mistake, and take a chance? No way.

Very nice setup, what temps are you getting in Texas right now?

We finally crossed the hump in South East Texas, average highs in the mid 70's and overnight lows in the 60's and 50's.


Ufo

[toptek]

are the S7 4,86THs version sold out at the moment?
coming a new batch in the future?
if a other hardware on the world, thas is also so good as the S7?

Best Regards
Willi

More are coming that hope fully make these prices more reason able, I mean even at 4.05 th and  i don't care how much BTC are,  to me that was just a excuse for them to be greedy.  is to much and not that much less then it was when the S7 came out .The A6 @ 1600 US is over priced to but well pay it. guess the new trend is see how much they can get, screw the rest and one day charge the KNC price for out Dated gear.


Sure hope sidehack can get a nice price on a few batch of chips, i gladly pay 400 to 500 or even 700 US , for four of his boards at 4th and mount them on four heat sinks, i  have laying around and use a PI to  control it, i like that more because more can be done with a PI type controller over the built in pi type on S7 .


@ Ufo

We finally crossed the hump in South East Texas, average highs in the mid 70's and overnight lows in the 60's and 50's.


I hope that's the same in Maryland we had to turn the air on the other day, for Maryland that's unusually.I'm still walking around in shorts and short sleeve but usually have to use a coat, no coat yet,but stay in shorts til it hit 20 degrees out side.

[UfoRia]

@ Ufo

We finally crossed the hump in South East Texas, average highs in the mid 70's and overnight lows in the 60's and 50's.


I hope that's the same in Maryland we had to turn the air on the other day, for Maryland that's unusually.I'm still walking around in shorts and short sleeve but usually have to use a coat, no coat yet,but stay in shorts til it hit 20 degrees out side.

Went to CostCo last night and it was 58 degrees outside, people were wearing farcking Parka's, seriously. I am not kidding, the fireplaces are already being used since they serve no real purpose outside of novelty.

When it gets below sixty it is like when Chicago hits the twenties, but in our defense everyone has jackets and want to use them when they can. I saw a kid at CostCo with an undershirt, Polo shirt, a sweater and a jacket.

I walk around in shorts until it gets in the forties since there is so much humidity you get wet and with the wind it's miserable.

One interesting thing people not in tropical or semi-tropical zones may not realize is that with high humidity in the winter, we have to run AC's to remove the humidity in the air. The heaters work to a degree, but it's not cold enough to keep them on long enough. I have my programmable thermostat set to 55 degrees in the house that runs while we are at work and school to pull the humidity out. It then changes to heat if it gets below 65 degrees, so no one complains. It's a real balancing act even with modern units, but alas I can golf 12 months of the year and swim in March.


Ufo

[toptek]

@ Ufo

We finally crossed the hump in South East Texas, average highs in the mid 70's and overnight lows in the 60's and 50's.


I hope that's the same in Maryland we had to turn the air on the other day, for Maryland that's unusually.I'm still walking around in shorts and short sleeve but usually have to use a coat, no coat yet,but stay in shorts til it hit 20 degrees out side.

Went to CostCo last night and it was 58 degrees outside, people were wearing farcking Parka's, seriously. I am not kidding, the fireplaces are already being used since they serve no real purpose outside of novelty.

When it gets below sixty it is like when Chicago hits the twenties, but in our defense everyone has jackets and want to use them when they can. I saw a kid at CostCo with an undershirt, Polo shirt, a sweater and a jacket.

I walk around in shorts until it gets in the forties since there is so much humidity you get wet and with the wind it's miserable.


Ufo

impressive set up you have but to be safe i would have use 8.2 wire over 10.2 who knows later on you may want to put in  40 amp or 50 amp breakers then you will have to change out the wire . Polly could have used less wire and saved some that way with two 50 amps but that's me I'm working on upgrading a few Script miners and holding off on the replacing my S5 to something better and buy a few more used S5, there is some nice deals on ebay atm,till next year , i refuse to pay bitmiains prices i fell it's,wrong, in the way there being greedy.

I know I lived in Texas a few years, 10 years ago and most of my family that is still a live , lives there now, all but one, he lives in GEO .They live Near fort worth Texas or in .I forget what city it may even be Fort worth, i used to live there .