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Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 189. (Read 528055 times)

legendary
Activity: 1876
Merit: 1000
Batch 8 ist mir nicht sympathisch... also halt bis nächstes Jahr warten, was scheisse ist..

why not, looks okay to me. 

sorry, don't know why I wrote German^^

Because it's less hashpower and more power consumption previous batches. I would like something like batch 5, kinda like that one.

hahahha i had to google translate that.  i understand people say its an overpriced already overclocked model, but people with batch 1-5, how high can you overclock it without too much hw ?    im only going to try that after 90 days though for warranty purposes

not only HW errors, but about an extra 100w for a few hundred GH....  in my experience it is almost ALWAYS better to underclock then overclock
legendary
Activity: 2294
Merit: 1182
Now the money is free, and so the people will be
Batch 8 ist mir nicht sympathisch... also halt bis nächstes Jahr warten, was scheisse ist..

why not, looks okay to me. 

sorry, don't know why I wrote German^^

Because it's less hashpower and more power consumption previous batches. I would like something like batch 5, kinda like that one.

hahahha i had to google translate that.  i understand people say its an overpriced already overclocked model, but people with batch 1-5, how high can you overclock it without too much hw ?    im only going to try that after 90 days though for warranty purposes
sr. member
Activity: 689
Merit: 260
Batch 8 ist mir nicht sympathisch... also halt bis nächstes Jahr warten, was scheisse ist..

why not, looks okay to me. 

sorry, don't know why I wrote German^^

Because it's less hashpower and more power consumption previous batches. I would like something like batch 5, kinda like that one.
legendary
Activity: 3892
Merit: 4331

My B4 at 575-1156W at the wall with EVGA1300 G2 gold (0.2513 J/Gh), 4600Gh 3960/3840rpm, 77F (25C) ambient
MY B5 at 625-1289W (0.2577 J/Gh) at the wall with EVGA1300 G2 Gold, 5001Gh, 4200/3960rpm, 77F
B5 was 1250, not 1210W at 600 with fan at 4400/4080

I mention fan speed because it affects W at the wall, naturally.


Was not with 220V and 40% Fan

no, 110/120V and auto fan for both. Did they specify 40% fan for 0.25? I tried lowering fan on B1 and B2, but results were that they somehow overheated even when sensor was reading OK temp, and as a result had some software glitches, so I stopped lowering fan below 65. In any case, I do auto for a few days to let them "settle in".
the difference from expected  J/Gh is quite small and so far, I am quite happy.
legendary
Activity: 1218
Merit: 1003

My B4 at 575-1156W at the wall with EVGA1300 G2 gold (0.2513 J/Gh), 4600Gh 3960/3840rpm, 77F (25C) ambient
MY B5 at 625-1289W (0.2577 J/Gh) at the wall with EVGA1300 G2 Gold, 5001Gh, 4200/3960rpm, 77F
B5 was 1250, not 1210W at 600 with fan at 4400/4080

I mention fan speed because it affects W at the wall, naturally.


Was not with 220V and 40% Fan
legendary
Activity: 3892
Merit: 4331
Batch 5.  Not too shabby.



did anyone do a wattage at the wall at 625?    I was pulling 1170 at 593 if memory serves.

My B4 at 575-1156W at the wall with EVGA1300 G2 gold (0.2513 J/Gh), 4600Gh 3960/3840rpm, 77F (25C) ambient
MY B5 at 625-1289W (0.2577 J/Gh) at the wall with EVGA1300 G2 Gold, 5001Gh, 4200/3960rpm, 77F
B5 was 1250, not 1210W at 600 with fan at 4400/4080

I mention fan speed because it affects W at the wall, naturally.
legendary
Activity: 1218
Merit: 1003
Batch 8 ist mir nicht sympathisch... also halt bis nächstes Jahr warten, was scheisse ist..

why not, looks okay to me. 

It is not OK, pay more BTC for overclocked miner.
Basic version of this miner was ANTMINER S7 BATCH 6  4TH/s and 4 BTC . I can overclock miner himself, If it's possible.

And Power Consumption: 1293W + 10% (at the wall, with APW3, 93% efficiency, 25C ambient temp)
with Hash Rate: 4.73 TH/s ±5%  does not in any way Power Efficiency: 0.25 J/GH + 10%

more like 0.273 W/Ghs  versus 0,249 W/GHs patch 3 and 5

So overclocking do not give better miners,  only more sales revenues for Bitmain.

I skip this batch and look forward to something better and not overclocked.
legendary
Activity: 1876
Merit: 1000
Batch 5.  Not too shabby.



did anyone do a wattage at the wall at 625?    I was pulling 1170 at 593 if memory serves.
legendary
Activity: 2294
Merit: 1182
Now the money is free, and so the people will be
Batch 8 ist mir nicht sympathisch... also halt bis nächstes Jahr warten, was scheisse ist..

why not, looks okay to me. 
sr. member
Activity: 689
Merit: 260
Batch 8 ist mir nicht sympathisch... also halt bis nächstes Jahr warten, was scheisse ist..
legendary
Activity: 1120
Merit: 1001
looks like we're going to have a + version next year.
nothing new until end of this year tho

mail from Bitmain :

Hi,

new model Not this year! Plus version we are considering, but no exact info we can provide now!

Best Regards
legendary
Activity: 1500
Merit: 1002
Mine Mine Mine
@not.you: nice error rate at that speed!

Did anyone went above 5gh? or the design of the power for the asics doesn't allow it?

thx

the chip can go much higher according to the datasheet

 Typical hash rate and power
Voltage(V) Hash Rate(GH/S) Current(A) Total power(W) W/GH
0.71           38.75                 14.350          10.189         0.263
0.66           32.50                 10.760           7.102          0.219
0.60           21.25                 6.410             3.846          0.181

need adjustable voltage to up the power, pcie cables + connectors have to be able to take the heat, better cooling, depends on chip production batch, etc etc ...

of course efficiency, is it worthwhile to oc that much ?

basic rule is : the more u oc = the shorter the lifespan, less stable, more heat

member
Activity: 233
Merit: 10
I can't wait to see patch 9, I have a good feeling about it Cool.

We have 700m frequency with patch 8. I think the new patch could hit 5.6Th-6Th easily if they added the same number of chips as patch 7 (162 chips) + the same frequency as patch 8.

hero member
Activity: 742
Merit: 500
@not.you: nice error rate at that speed!

Did anyone went above 5gh? or the design of the power for the asics doesn't allow it?

thx
legendary
Activity: 1500
Merit: 1002
Mine Mine Mine
Batch 6 and 8 135 45 chip blade



those caps + coil .. used to "help" boost the voltage Huh so it can be clocked to 700mhz n gives out the "advertised" hashrate ?

i think i read somewhere if anything more than +12V will help to increase hashrate & more stable Huh hmmm, up it to 12.5V n see how it goes ? i think that might slow down or stop the wild  hashrate fluctuations ?
legendary
Activity: 3892
Merit: 4331

There is different firmware for some frequencies though. I think that is what he is talking about.

Take a look at bitmain S7 firmwares: https://bitmaintech.com/support.htm?pid=00720151023101739550pOBiK5sO06A0

Yes I had seen that.  I wonder if they are essentially the same with the exception of which freq is default.  My batch 5 came with the latest firmware on it.

interesting...my batch 5 still has the Sept 15 software.
It gets to 5001Gh at 625 "Like a BOSS" with 0.0029% error so far. We shall see.
legendary
Activity: 1726
Merit: 1018

There is different firmware for some frequencies though. I think that is what he is talking about.

Take a look at bitmain S7 firmwares: https://bitmaintech.com/support.htm?pid=00720151023101739550pOBiK5sO06A0

Yes I had seen that.  I wonder if they are essentially the same with the exception of which freq is default.  My batch 5 came with the latest firmware on it.
legendary
Activity: 1456
Merit: 1000

do you need new firmware for the 625mhz?

No it's configurable since way back on the S3.  Those are the options on the dropdown list in the web gui.



There is different firmware for some frequencies though. I think that is what he is talking about.

Take a look at bitmain S7 firmwares: https://bitmaintech.com/support.htm?pid=00720151023101739550pOBiK5sO06A0
legendary
Activity: 1726
Merit: 1018

do you need new firmware for the 625mhz?

No it's configurable since way back on the S3.  Those are the options on the dropdown list in the web gui.

legendary
Activity: 3892
Merit: 4331
Batch 5.  Not too shabby.

showing ~5th at 625mhz

do you need new firmware for the 625mhz?

no, but doing this is negating the warranty, strictly speaking.
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