The difference here is that the S7 has two fans and temperature control / cutoff, as well as much higher quality heatsinks.
How do the heatsinks on the other side of the board look like? Are they glued on also?
Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 404. (Read 528055 times)
August 30, 2015, 04:16:02 AM
How do the heatsinks on the other side of the board look like? Are they glued on also?
August 30, 2015, 04:08:08 AM
- Operating Temperature: 0 °C to 40 °C
Operating Temp is really low 40C? Other miners as well as bitmain units operated up to 60C.
That is only 104F or so. Hope you got air conditioning or live in a northern region.
The S5 has a limit of 35C. These are ambient temps, but I can see a data center getting higher than 40C and certainly higher than 35C without AC.
I'm sure there's many S5's that have been running at ambient temps above 35C in the past couple months. Any performance issues?
After my experience with a burning AsicMiner Prisma with ~1100 watts passing through a very small area, I think that I will pass on this miner. That is just too much power in a tiny area in the event of a fan or cooling failure.
The difference here is that the S7 has two fans and temperature control / cutoff, as well as much higher quality heatsinks. August 30, 2015, 03:57:33 AM
The S5 fans are appx. 1.9 amp 190 cfm, as far as I've been able to figure out. I haven't been able to figure out the exact model number or find a spec sheet though, as the FFB series fan member they APPEAR to be (based on the power draw I've seen stated and on the appx. rpm) doesn't have a PWM version per the Delta web page, and none of the PWM flow-director style fans I've seen on that page have as LOW of an RPM level as the S5 fans.
only 25W for 190CFM?...
August 30, 2015, 03:50:16 AM
Might actually pick one of these up. How much is it again?
Looks like 7.972BTC
ouch!
Using www.tradeblock.commining calculator at a 229 usd btc price....well ...see for yourself
Probably pays for their own use Data Hall thou.It figures at 13c kwh this beast (usa) don't fly for me in anyway shape or form
Thats for sure. Too rich for my blood 
August 30, 2015, 03:48:47 AM
Guys, can you use two 750W PSU to power this miner ?
maybe if they are identical, maybe but is too risky.
the point is that you will have to power 1 board from both psu's and that is not recommended!
u can use 3 of 500w
u need single rail psu with at least 35A on 12v . the one psu that is powering also the controller and the fans i'd say at least 38A!
30A and 35A or so to be picky, but better to go 35A and 40A+ so you have a bit of headroom in case the specs are off at all, and quite a bit more if you plan to try to overclock it.
If the fans are the same as the S5 (they appear to be using the same model from the pics AND what specs they've published) 2 of them will eat right about 4 amps for JUST the fans, then add a bit for the controller board logic and BBB.
I'm not aware of any 500W power supplies with 35+ amps on one rail, but I'm sure there's some out there somewhere - I've got some 450s that manage 39A split between 2 rails.
The S5 fans are appx. 1.9 amp 190 cfm, as far as I've been able to figure out. I haven't been able to figure out the exact model number or find a spec sheet though, as the FFB series fan member they APPEAR to be (based on the power draw I've seen stated and on the appx. rpm) doesn't have a PWM version per the Delta web page, and none of the PWM flow-director style fans I've seen on that page have as LOW of an RPM level as the S5 fans.
August 30, 2015, 03:42:37 AM
wow this seems very powerful and also most power efficient miner in the market ...
but i dont think the price is acceptable though.
but i dont think the price is acceptable though.
I have to agree. Unfortunetly the size and price of it is bigger than I expected. I was expecting a 2.5 ths unit with around 3-3.5 btc price. Seems like I'll have to wait and save some more coins.
And it does look loud. Those fans look like S5 fans and I can't imagine 2 of them in a house.
Yes. It could be very loud.
I don't really find anything definite for "12038 Fans"... What's the specs? Thanks.
I remember seeing something SOMEWHERE about "4200 rpm" fans, which makes them probably the same Delta model that is used on the S5.
Does anybody know the power draw and CFM? Or even better, a data sheet?
August 30, 2015, 03:39:47 AM
@Bitmain: Will you offer this one at DHGATE.com also? Does it run on WIFI?
I'm sure they'll add it to their DHGate store shortly, it's only JUST becomming available to order on their main site sometime today.
I saw no indication of Wifi support, same as on the S5. Wifi is such a limited market, I suspect they decided it wasn't worth the cost.
August 30, 2015, 03:38:05 AM
wow this seems very powerful and also most power efficient miner in the market ...
but i dont think the price is acceptable though.
but i dont think the price is acceptable though.
I have to agree. Unfortunetly the size and price of it is bigger than I expected. I was expecting a 2.5 ths unit with around 3-3.5 btc price. Seems like I'll have to wait and save some more coins.
And it does look loud. Those fans look like S5 fans and I can't imagine 2 of them in a house.
Yes. It could be very loud.
I don't really find anything definite for "12038 Fans"... What's the specs? Thanks.
I remember seeing something SOMEWHERE about "4200 rpm" fans, which makes them probably the same Delta model that is used on the S5.
August 30, 2015, 03:28:17 AM
Nice, i hope to get one soon
@Bitmain: Will you offer this one at DHGATE.com also? Does it run on WIFI?
@Bitmain: Will you offer this one at DHGATE.com also? Does it run on WIFI?
August 30, 2015, 03:11:08 AM
wow this seems very powerful and also most power efficient miner in the market ...
but i dont think the price is acceptable though.
but i dont think the price is acceptable though.
I have to agree. Unfortunetly the size and price of it is bigger than I expected. I was expecting a 2.5 ths unit with around 3-3.5 btc price. Seems like I'll have to wait and save some more coins.
And it does look loud. Those fans look like S5 fans and I can't imagine 2 of them in a house.
Yes. It could be very loud.
I don't really find anything definite for "12038 Fans"... What's the specs? Thanks.
August 30, 2015, 02:57:09 AM
Guys, can you use two 750W PSU to power this miner ?
maybe if they are identical, maybe but is too risky.
the point is that you will have to power 1 board from both psu's and that is not recommended!
u can use 3 of 500w
u need single rail psu with at least 35A on 12v . the one psu that is powering also the controller and the fans i'd say at least 38A!
August 30, 2015, 02:55:05 AM
Guys, can you use two 750W PSU to power this miner ?
not at all
You need 410w at the wall for each hashboard, from ONLY one PSU...
Well you could use different PSU's for different hashing boards. I would prefer one though.
Biggest thing is not to mix psu's on hashing board. IE one hashing board and two PSU's going to it.
August 30, 2015, 02:46:00 AM
Guys, can you use two 750W PSU to power this miner ?
not at all
You need 410w at the wall for each hashboard, from ONLY one PSU...
August 30, 2015, 02:43:49 AM
Guys, can you use two 750W PSU to power this miner ?
August 30, 2015, 02:01:50 AM
Must have one... 
August 30, 2015, 01:57:38 AM
I'll wait for lower prices, for me it is too high, 
August 30, 2015, 01:52:57 AM
I like this miner, but the price seems to be too much, I thought at least 1200 dollars,
Agree the price is too steep as others have said. The issue though, as others have also said, is I think they already have the S7+ made and in their own home farms. The design looks too easy to replicate based on the S5+. Which means they are now trying to sneak a poke at early buyers with the high price, before either the market collapses or the difficulty pops due to the increased Hasing power of the network.
August 30, 2015, 01:45:20 AM
I like this miner, but the price seems to be too much, I thought at least 1200 dollars,
August 30, 2015, 01:06:33 AM
Very, very, very high price. Game over for home mining I guess.
+1
I think the price is too high but efficiency of the miner is good.
maybe 5 more years and no more home miners, only big commercial miners.
In 5 years will there be any more bitcoins to mine at the rate of technological advancement?
I think there will be, there's no other way but to go up.
It's just maybe the future of mining is not for home, ordinary people like us would use it as a commodity then mining or process of transaction will be all commercialize. (just my opinion, I maybe wrong)
But that defeats the original purpose of bitcoin. It was the centralized production and control of transactions that makes a fiat money supply an issue in the first place. The control of supply is only one side of the coin. Centralization leads to governments being able to dictate to those entities how the market is going to work. That's the problem with fiat money and Central Banks. Decentralization of the network is the only thing that keeps its integrity in check. Once it is centralized it is controlled by wherever that centralization is occurring. And you can damn sure bet where money and assets or human endeavors are involved, the people with guns (IE Government) are going to be right there with one at someone's head. This may be an issue for the 'market' to solve. And by solve I mean it simply de-capitalizes because it no longer trusts the network. Then when the mega entities are gone, the process starts over. Don't give a crap how 'efficient' this miner is, it won't live at $20 per bitcoin.
August 30, 2015, 12:57:09 AM
Very, very, very high price. Game over for home mining I guess.
+1
I think the price is too high but efficiency of the miner is good.
maybe 5 more years and no more home miners, only big commercial miners.
In 5 years will there be any more bitcoins to mine at the rate of technological advancement?
I think there will be, there's no other way but to go up.
It's just maybe the future of mining is not for home, ordinary people like us would use it as a commodity then mining or process of transaction will be all commercialize. (just my opinion, I maybe wrong)
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