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Author Topic: rumors of 3.5Th antminer S7 "lite"  (Read 8496 times)
mavericklm
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November 12, 2015, 01:35:36 AM
 #141

there is no point business-wise to have another 2boards design! simple as that!

the fan used from s4, s5 till now is a crap and a piece of shit ! Shocked
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November 12, 2015, 01:42:49 AM
 #142

I have yet to see any company come out with something modular where you can just buy a main trunk and keep adding things easily to it.  I guess the modular add-on idea hasn't taken off.
It would need some R&D before it takes off. Most R&D goes towards efficiency. Cant really blame them since the water cooled unit failed miserably.

there is no point business-wise to have another 2boards design! simple as that!

the fan used from s4, s5 till now is a crap and a piece of shit ! Shocked

Just halve the amount of boards. Fill the gap with bigger heatsinks. Make profit from people who are too cheap to buy a s7.

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November 13, 2015, 04:45:37 PM
 #143

Now they are trying to hide their shadiness by releasing S7 lite with lower hashrate! Roll Eyes I think they need to change this BM1385 chip in order to overcome with heating and efficiency issues. At least in S8 maybe! Wink
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November 14, 2015, 10:35:32 PM
 #144

Now they are trying to hide their shadiness by releasing S7 lite with lower hashrate! Roll Eyes I think they need to change this BM1385 chip in order to overcome with heating and efficiency issues. At least in S8 maybe! Wink

That's just because that poster does not understand what that means and the miner consumption vs power consumption at the wall, there is nothing shaddy here, with the drop in hash rate, there is also a drop in power consumption.

With a 90% eff psu that would come up to 1157watts at the wall~ down from 1240~ and the hashrate goes down at the same ratio.

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November 15, 2015, 05:16:37 PM
 #145

I have yet to see any company come out with something modular where you can just buy a main trunk and keep adding things easily to it.  I guess the modular add-on idea hasn't taken off.
It would be great wouldn't it? I feel like they are concerned that others would start releasing their own chips on blades that would fit the trunk and possibly lose them money.














 

 

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November 16, 2015, 01:01:39 AM
 #146


That's just because that poster does not understand what that means and the miner consumption vs power consumption at the wall, there is nothing shaddy here, with the drop in hash rate, there is also a drop in power consumption.

With a 90% eff psu that would come up to 1157watts at the wall~ down from 1240~ and the hashrate goes down at the same ratio.

In fairness the efficiency of the B6 appears to have been lowered by 10% (Power Efficiency: 0.25 J/GH + 10% (at the wall, etc...)  And chip count was reduced to 135 vs 165162 for earlier batches. Speculation is that this is to decrease the string size in order to increase chip voltage, due to some issues that seem to have come up when PSU's put out slightly lower than 12V. There were clearly some QC issues in earlier batches, hence the two different hashrates in different batches, though my 2x B1 S7's are hashing away at 100%, and even OC'd a bit to 5TH/s without a hiccup.

Edit:typo

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November 16, 2015, 10:03:15 AM
 #147


That's just because that poster does not understand what that means and the miner consumption vs power consumption at the wall, there is nothing shaddy here, with the drop in hash rate, there is also a drop in power consumption.

With a 90% eff psu that would come up to 1157watts at the wall~ down from 1240~ and the hashrate goes down at the same ratio.

In fairness the efficiency of the B6 appears to have been lowered by 10% (Power Efficiency: 0.25 J/GH + 10% (at the wall, etc...)  And chip count was reduced to 135 vs 165 for earlier batches. Speculation is that this is to decrease the string size in order to increase chip voltage, due to some issues that seem to have come up when PSU's put out slightly lower than 12V. There were clearly some QC issues in earlier batches, hence the two different hashrates in different batches, though my 2x B1 S7's are hashing away at 100%, and even OC'd a bit to 5TH/s without a hiccup.

3x 54 =162 chip not 165
I think that the new 4,05 TH/s S7 can be better as old 4,86 TH/s

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November 16, 2015, 09:05:28 PM
 #148


That's just because that poster does not understand what that means and the miner consumption vs power consumption at the wall, there is nothing shaddy here, with the drop in hash rate, there is also a drop in power consumption.

With a 90% eff psu that would come up to 1157watts at the wall~ down from 1240~ and the hashrate goes down at the same ratio.

In fairness the efficiency of the B6 appears to have been lowered by 10% (Power Efficiency: 0.25 J/GH + 10% (at the wall, etc...)  And chip count was reduced to 135 vs 165 for earlier batches. Speculation is that this is to decrease the string size in order to increase chip voltage, due to some issues that seem to have come up when PSU's put out slightly lower than 12V. There were clearly some QC issues in earlier batches, hence the two different hashrates in different batches, though my 2x B1 S7's are hashing away at 100%, and even OC'd a bit to 5TH/s without a hiccup.

3x 54 =162 chip not 165
I think that the new 4,05 TH/s S7 can be better as old 4,86 TH/s

I a world where the eficiency is so important is understandable that a company launch a worse product after one better... I wanna wait and see too.

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November 17, 2015, 06:52:45 AM
 #149

The new s7 is marked as sold out on bitmain so I wonder what the next batch has in store for us.  Are they going to produce another batch of the same, something different or drop a new chip and new unit.  I'd guess they just produce another batch but the drop in btc price has hurt their value since they are using a hard btc price instead of dollar.  Soo I wonder will they release something to the public?  The units they haven't even shipped yet so it will be some time till then
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November 17, 2015, 06:59:01 AM
 #150

The new s7 is marked as sold out on bitmain so I wonder what the next batch has in store for us.  Are they going to produce another batch of the same, something different or drop a new chip and new unit.  I'd guess they just produce another batch but the drop in btc price has hurt their value since they are using a hard btc price instead of dollar.  Soo I wonder will they release something to the public?  The units they haven't even shipped yet so it will be some time till then

They have did batches pretty far out really for them.  It's almost to point its kinda a pre-order I think you get a month or so ahead.  I mean the current batch could ship "between Dec. 7 ~ Dec. 17 (if shipped out 5 days later than it, it won't be considered as delay )." So Dec 23 ship out around a month and 6 day's and they are not late.

So It would not surprise me if we see another one of the newer S7's again just wait till it's closer to that batch being shipped or possibly  shipped.   I do not expect them to change it again or make a two blade, I think they are going to remain firm on current design at this point.
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November 17, 2015, 07:42:29 AM
 #151

The new s7 is marked as sold out on bitmain so I wonder what the next batch has in store for us.  Are they going to produce another batch of the same, something different or drop a new chip and new unit.  I'd guess they just produce another batch but the drop in btc price has hurt their value since they are using a hard btc price instead of dollar.  Soo I wonder will they release something to the public?  The units they haven't even shipped yet so it will be some time till then

They have did batches pretty far out really for them.  It's almost to point its kinda a pre-order I think you get a month or so ahead.  I mean the current batch could ship "between Dec. 7 ~ Dec. 17 (if shipped out 5 days later than it, it won't be considered as delay )." So Dec 23 ship out around a month and 6 day's and they are not late.

So It would not surprise me if we see another one of the newer S7's again just wait till it's closer to that batch being shipped or possibly  shipped.   I do not expect them to change it again or make a two blade, I think they are going to remain firm on current design at this point.

My money still on all future batches being of the 135 Chip, 4.05TH variety. Still intrigued to see what the actual consumption & J/GH these actually achieve? However we have a while to wait for first tests on a Batch 6, and there must be a risk that deliveries get slowed by Xmas?

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November 17, 2015, 01:03:20 PM
 #152

It seems that my forecast was wrong.  Smiley  Batch 7 is another variation with 162 Chips, 5.06TH, 1270W, Default Frequency 625MHz, 0.25J/GH and Supply Voltage 12.0V+5%, should not be less than 12.0V

https://www.bitmaintech.com/productDetail.htm?pid=0002015111710183627718X85SYG0616

I can only guess that they are selecting BM1385 for these?


Rich

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November 17, 2015, 04:41:13 PM
 #153

It seems that my forecast was wrong.  Smiley  Batch 7 is another variation with 162 Chips, 5.06TH, 1270W, Default Frequency 625MHz, 0.25J/GH and Supply Voltage 12.0V+5%, should not be less than 12.0V

https://www.bitmaintech.com/productDetail.htm?pid=0002015111710183627718X85SYG0616

I can only guess that they are selecting BM1385 for these?


Rich

Interesting they have a new batch.  It's almost like pre-ording you order so far ahead.  1.5 Month lead time to get product is a change in bitmain.  It is intersting as i would guess with 1.5 month lead time they could order all parts, etc from customers money not even need to use their own like when batches were made close to shipping date.

I really hope they push timeframe to less day's ahead when they look at more batches.
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November 17, 2015, 08:47:58 PM
 #154

It seems that my forecast was wrong.  Smiley  Batch 7 is another variation with 162 Chips, 5.06TH, 1270W, Default Frequency 625MHz, 0.25J/GH and Supply Voltage 12.0V+5%, should not be less than 12.0V

https://www.bitmaintech.com/productDetail.htm?pid=0002015111710183627718X85SYG0616

I can only guess that they are selecting BM1385 for these?


Rich

Interesting they have a new batch.  It's almost like pre-ording you order so far ahead.  1.5 Month lead time to get product is a change in bitmain.  It is intersting as i would guess with 1.5 month lead time they could order all parts, etc from customers money not even need to use their own like when batches were made close to shipping date.

I really hope they push timeframe to less day's ahead when they look at more batches.

I suppose it give them more operational leeway, i'm guessing they realized that people trust them enough that they can get away with doing this, as it give them another edge. Interesting of them to make a step up in chips instead of down. Look like RichBC's guess did not come to be.

Sound a bit risky to buy in now, as with the difficulty increase, i'm not sure this unit will be worth 5BTC in 3~4 difficulty rounds.

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November 17, 2015, 09:12:31 PM
 #155

Look like RichBC's guess did not come to be.


Tough game this guessing.  Smiley Then again who would have guessed that we would have 4 different Default Frequencies / TH/s and 2 different chip count S7 in such a short period of time?

Still they are running out of permutations, unless we start seeing different Default Frequency 135 Chip versions.  Smiley


Rich

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November 17, 2015, 09:40:46 PM
 #156

Look like RichBC's guess did not come to be.


Tough game this guessing.  Smiley Then again who would have guessed that we would have 4 different Default Frequencies / TH/s and 2 different chip count S7 in such a short period of time?

Still they are running out of permutations, unless we start seeing different Default Frequency 135 Chip versions.  Smiley


Rich

I would really like to see a two board S7 with a high chip permutation, with bigger heatsink, should make the thing very quiet during winter and make it cheaper to buy it single unit by single unit.

Back to wishing for a 3.5TH~ "lite" for Christmas.

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November 17, 2015, 10:18:27 PM
 #157

Look like RichBC's guess did not come to be.


Tough game this guessing.  Smiley Then again who would have guessed that we would have 4 different Default Frequencies / TH/s and 2 different chip count S7 in such a short period of time?

Still they are running out of permutations, unless we start seeing different Default Frequency 135 Chip versions.  Smiley


Rich

I would really like to see a two board S7 with a high chip permutation, with bigger heatsink, should make the thing very quiet during winter and make it cheaper to buy it single unit by single unit.

Back to wishing for a 3.5TH~ "lite" for Christmas.

Yes I guess we have several games... Guessing what they might do, guessing what it is while we wait for someone to get one, and Wishing for what we actually want.  Smiley

On the Wishing front yes I still think that a 2 Board S7 would be a great product. I am actually now torn between wishing it would be based on 54 or 45 chips / board? 45 chip I feel would be a very solid product with a lot of scope for over & under clocking and volting. Whereas 54 chips / board would push up the hash rate and I think respond well to overvolting which is much easier to do with a Server PSU than undervolting. Unfortunately I don't expect to see either...

Am still intrigued to find out why they have found it necessary to have so many variants? I can only assume that they are getting a very broad spread of BM1385 chips and this is there way of coping with this? As has been said already it's going to be a nightmare in the 2nd hand market to know what you are buying.

Rich


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November 17, 2015, 10:29:47 PM
 #158

Look like RichBC's guess did not come to be.


Tough game this guessing.  Smiley Then again who would have guessed that we would have 4 different Default Frequencies / TH/s and 2 different chip count S7 in such a short period of time?

Still they are running out of permutations, unless we start seeing different Default Frequency 135 Chip versions.  Smiley


Rich

I would really like to see a two board S7 with a high chip permutation, with bigger heatsink, should make the thing very quiet during winter and make it cheaper to buy it single unit by single unit.

Back to wishing for a 3.5TH~ "lite" for Christmas.

Yes I guess we have several games... Guessing what they might do, guessing what it is while we wait for someone to get one, and Wishing for what we actually want.  Smiley

On the Wishing front yes I still think that a 2 Board S7 would be a great product. I am actually now torn between wishing it would be based on 54 or 45 chips / board? 45 chip I feel would be a very solid product with a lot of scope for over & under clocking and volting. Whereas 54 chips / board would push up the hash rate and I think respond well to overvolting which is much easier to do with a Server PSU than undervolting. Unfortunately I don't expect to see either...

Am still intrigued to find out why they have found it necessary to have so many variants? I can only assume that they are getting a very broad spread of BM1395 chips and this is there way of coping with this? As has been said already it's going to be a nightmare in the 2nd hand market to know what you are buying.

Rich


Maybe they are dealing with different fabricant that can do one but not the other? Its nagging me, as to why they are doing this, as i can't come up with a reason. Sure they have lots of BM1385's but that doesn't really justify doing random things with them?

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November 17, 2015, 10:53:29 PM
 #159

Look like RichBC's guess did not come to be.


Tough game this guessing.  Smiley Then again who would have guessed that we would have 4 different Default Frequencies / TH/s and 2 different chip count S7 in such a short period of time?

Still they are running out of permutations, unless we start seeing different Default Frequency 135 Chip versions.  Smiley


Rich

I would really like to see a two board S7 with a high chip permutation, with bigger heatsink, should make the thing very quiet during winter and make it cheaper to buy it single unit by single unit.

Back to wishing for a 3.5TH~ "lite" for Christmas.

Yes I guess we have several games... Guessing what they might do, guessing what it is while we wait for someone to get one, and Wishing for what we actually want.  Smiley

On the Wishing front yes I still think that a 2 Board S7 would be a great product. I am actually now torn between wishing it would be based on 54 or 45 chips / board? 45 chip I feel would be a very solid product with a lot of scope for over & under clocking and volting. Whereas 54 chips / board would push up the hash rate and I think respond well to overvolting which is much easier to do with a Server PSU than undervolting. Unfortunately I don't expect to see either...

Am still intrigued to find out why they have found it necessary to have so many variants? I can only assume that they are getting a very broad spread of BM1395 chips and this is there way of coping with this? As has been said already it's going to be a nightmare in the 2nd hand market to know what you are buying.

Rich


Maybe they are dealing with different fabricant that can do one but not the other? Its nagging me, as to why they are doing this, as i can't come up with a reason. Sure they have lots of BM1385's but that doesn't really justify doing random things with them?

I think it makes more sense the 5th vs the almost 4th on the 3 blade design.  I just think 10 PCIe for 4TH is to much, and I know some are going to say you can use less... and i'm sure some do but I have been following bitmain's warranty on last few miners.

I cannot for the life of me figure out the up vs down.   But I think they will end up closer to  5th on future batches maybe they got quality up or something, or they had better yields.  There has to be something behind it, and I'm guessing it's tied to money.
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November 18, 2015, 12:50:30 AM
 #160

Maybe they buffed out some of the issues with the earlier batches and did a 4 th unit to just be on the safe side of things.  After some testing they said ok everything is good lets drop a 5 th unit and start pushing out more of these chips.  It is interesting to note that shipping times for batch 6 & 7 are exactly the same, so that would lead me to believe they had both these machines designed at the same time.
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