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Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 41. (Read 528055 times)

legendary
Activity: 1500
Merit: 1002
Mine Mine Mine
can't seem to login to bmt account. i'm seeing unknown error !!!
full member
Activity: 196
Merit: 100
even cheaper from them is their dual 2000W for around 250$ that can power 3 S7

Wouldn't a dual 2000W psu be a 4000W psu?

Looked funny at first, you claiming a 2000W psu could power 3600W of miner until I saw "dual" in front.

Yes, he meant 2 x 2000W IBM PSU using J4bberwock 4K board to combine them together.  You can power 3 x S7 with that combo and even have room to overclock them.  Super Quiet and a power combo, unfortunately many people are starting to learn this and the PSU price is climbing a lot more now.   Best bang per S7
legendary
Activity: 2464
Merit: 1710
Electrical engineer. Mining since 2014.
even cheaper from them is their dual 2000W for around 250$ that can power 3 S7

Wouldn't a dual 2000W psu be a 4000W psu?

Looked funny at first, you claiming a 2000W psu could power 3600W of miner until I saw "dual" in front.
It's 2pcs DPS-2000BB -package.  Check this post and thread: https://bitcointalksearch.org/topic/m.13758920
legendary
Activity: 1274
Merit: 1000
even cheaper from them is their dual 2000W for around 250$ that can power 3 S7

Wouldn't a dual 2000W psu be a 4000W psu?

Looked funny at first, you claiming a 2000W psu could power 3600W of miner until I saw "dual" in front.
full member
Activity: 196
Merit: 100
120V = EVGA best bang for the buck.  240V = IBM PSU best bang for the buck.  Although people are getting smarter and know this so price are increasing fast.  

P.S Good PSU are great investment when buying used.  You almost get 100% if not more back on your investment as the demand is always there unlike Mining equipment.
sr. member
Activity: 805
Merit: 250

[/quote]

Ya and you can get down to ~$100-115 per S7 (2 S7's on one supply) if you can run 240V and get the IBM 2880's with breakouts from j4bber/finksy
[/quote]

even cheaper from them is their dual 2000W for around 250$ that can power 3 S7
newbie
Activity: 35
Merit: 0
I have 20 each ANTEC EA750 Platinum / EarthWatt Platinum 750W PSUs for sale at $90 each OBO with volume. 

http://www.amazon.com/ANTEC-EA750-Platinum-EarthWatt-750W/dp/B00IWWY5BI

You will need 1 for each hashing card so, you will need 3 to run 1 Antminer S7.

These are Platinum with 10 year warranty!

PM me if interested.

Price does not make sense really though.  Your talking 270ish to run 1 S7.   You can get the bitmain PSU for 140, so almost half of the cost. And you only have 1 PSU vs 3 much cleaner.

Even if stuck on 110/120 I think there are much better options price wise.

I have 20 each ANTEC EA750 Platinum / EarthWatt Platinum 750W PSUs for sale at $90 each OBO with volume. 

http://www.amazon.com/ANTEC-EA750-Platinum-EarthWatt-750W/dp/B00IWWY5BI

You will need 1 for each hashing card so, you will need 3 to run 1 Antminer S7.

These are Platinum with 10 year warranty!

PM me if interested.

Price does not make sense really though.  Your talking 270ish to run 1 S7.   You can get the bitmain PSU for 140, so almost half of the cost. And you only have 1 PSU vs 3 much cleaner.

Even if stuck on 110/120 I think there are much better options price wise.

Ya and you can get down to ~$100-115 per S7 (2 S7's on one supply) if you can run 240V and get the IBM 2880's with breakouts from j4bber/finksy
legendary
Activity: 1456
Merit: 1000
I have 20 each ANTEC EA750 Platinum / EarthWatt Platinum 750W PSUs for sale at $90 each OBO with volume. 

http://www.amazon.com/ANTEC-EA750-Platinum-EarthWatt-750W/dp/B00IWWY5BI

You will need 1 for each hashing card so, you will need 3 to run 1 Antminer S7.

These are Platinum with 10 year warranty!

PM me if interested.

Price does not make sense really though.  Your talking 270ish to run 1 S7.   You can get the bitmain PSU for 140, so almost half of the cost. And you only have 1 PSU vs 3 much cleaner.

Even if stuck on 110/120 I think there are much better options price wise.
legendary
Activity: 1260
Merit: 1006
Mine for a Bit
I have 20 each ANTEC EA750 Platinum / EarthWatt Platinum 750W PSUs for sale at $90 each OBO with volume. 

http://www.amazon.com/ANTEC-EA750-Platinum-EarthWatt-750W/dp/B00IWWY5BI

You will need 1 for each hashing card so, you will need 3 to run 1 Antminer S7.

These are Platinum with 10 year warranty!

PM me if interested.
full member
Activity: 196
Merit: 100
I have a EVGA G2 1300W PSU for sale which is great for powering the S7 as well as extra EVGA single PCI-E cables that I can sell for cheap.  I also have a bunch of left over PCI-E cables for server PSU.  PM me if anyone is interested.  Doing some Spring cleaning.  =)

Thanks for all the PM.  This has now been sold.   
sr. member
Activity: 255
Merit: 251
I can get electricity under $.07 / kWh. Still profitable?

You have to decide what is "profitable" to you. Operating profit? Pay off cost of miner after expenses? How long a time frame? What's your guess on difficulty changes? Effect of the "halving" in about 17 weeks?

In case you haven't used: https://bitcoinwisdom.com/bitcoin/calculator

Sorry for the terse reply, but you aren't a Newbie.

Ha, it's fine.

I've already bought the miners, so I guess it's a moot point  Wink

I've used that calculator. If it doesn't ROI, it should get pretty close. Hopefully the price goes up at the halving, we'll just have to see.

At any rate, I want to support the network.


I haven't bought any hardware from Bitmain before, hopefully they ship my psu's quickly and the miners quickly when they ship march 15
alh
legendary
Activity: 1846
Merit: 1052
I can get electricity under $.07 / kWh. Still profitable?

You have to decide what is "profitable" to you. Operating profit? Pay off cost of miner after expenses? How long a time frame? What's your guess on difficulty changes? Effect of the "halving" in about 17 weeks?

In case you haven't used: https://bitcoinwisdom.com/bitcoin/calculator

Sorry for the terse reply, but you aren't a Newbie.
sr. member
Activity: 255
Merit: 251
I can get electricity under $.07 / kWh. Still profitable?
legendary
Activity: 1161
Merit: 1001
Don`t invest more than you can afford to lose
Quote
I'm about to buy about 20 more s7 as well, we get almost free power in Venezuela, so it still looks profitable for us under those conditions....

Free power is great in bitcoin mining industry
full member
Activity: 196
Merit: 100
I have a EVGA G2 1300W PSU for sale which is great for powering the S7 as well as extra EVGA single PCI-E cables that I can sell for cheap.  I also have a bunch of left over PCI-E cables for server PSU.  PM me if anyone is interested.  Doing some Spring cleaning.  =)
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
https://gyazo.com/b6c5ee5e03d86cb214b18bc11d44bba0

I am wondering who buys these crap anymore ...
even with low increases as 8 %,  cheap electricity and absolutely no issues during mining, you will not make back even half of the investment

and with power at 6 cents and jumps at 4% with coins moving to 550  profit  comes in 159 days


I am paying with BTC not USD so I don't care if BTC goes up to 500 or 1000, and who pays only 6 cents per KW ? and only 4 % jumps ? you really think that is possible ? because I don't

I have no idea what the future will bring.

but I can show this to you:

https://bitcoinwisdom.com/bitcoin/difficulty

Feb 22 2015   46,684,376,317   5.01%   334,179,783 GH/s
Mar 08 2015   47,427,554,951   1.59%   339,499,662 GH/s
Mar 22 2015   46,717,549,645   -1.50%   334,417,246 GH/s
Apr 05 2015   49,446,390,688   5.84%   353,951,052 GH/s
Apr 19 2015   47,610,564,513   -3.71%   340,809,696 GH/s
May 03 2015   47,643,398,018   0.07%   341,044,727 GH/s
May 17 2015   48,807,487,245   2.44%   349,377,603 GH/s
May 31 2015   47,589,591,154   -2.50%   340,659,563 GH/s


Jun 14 2015   49,692,386,355   4.42%   355,711,957 GH/s

this means from Feb 22 2015 to June 13 2015  

 diff was 46.68 to 47.59   that was all of    march,apr,may,  that is 92 days  plus 7 in feb and 13 in june is 112 days

of very flat diff.

http://www.quotenet.com/currencies/historical-prices/USD-BTC

low price on feb 22 ,  2015     234

low price on June 13, 2015     230


I want you to understand you could be correct about the diff and it could jump 8%

But you could be wrong about the diff and it could flatline.

This is why people still buy the s-7.

Also they may be like me and can get 0 to 6 cent power.

sr. member
Activity: 278
Merit: 254
last night my minner stoped connection so i went down to the basement  and saw it working but it had no connection to the rooter the i cut the power and gave it back and everything worked ok . does somebody know why has that happened?

This has happened to me too, several different units.  On one occasion it was correlated with a temporary loss of internet connection.  This affected one unit, but the others worked OK.  The symptoms were that the O/S had crashed.  The miner web interface did not respond, nor would it respond to a ping at its IP address. The only cure was to power cycle.
newbie
Activity: 35
Merit: 0
I am paying with BTC not USD so I don't care if BTC goes up to 500 or 1000, and who pays only 6 cents per KW ? and only 4 % jumps ? you really think that is possible ? because I don't

I pay like 8 cents Canadian, it's about 6 cents US.

Yup, I am about to move some gear back to IA where large general service rates can get down to about 3.5-4 cents /kwhr... plus northern climates have longer winters which helps on cooling
legendary
Activity: 1638
Merit: 1005
I am paying with BTC not USD so I don't care if BTC goes up to 500 or 1000, and who pays only 6 cents per KW ? and only 4 % jumps ? you really think that is possible ? because I don't

I pay like 8 cents Canadian, it's about 6 cents US.
legendary
Activity: 1120
Merit: 1001
https://gyazo.com/b6c5ee5e03d86cb214b18bc11d44bba0

I am wondering who buys these crap anymore ...
even with low increases as 8 %,  cheap electricity and absolutely no issues during mining, you will not make back even half of the investment

and with power at 6 cents and jumps at 4% with coins moving to 550  profit  comes in 159 days


I am paying with BTC not USD so I don't care if BTC goes up to 500 or 1000, and who pays only 6 cents per KW ? and only 4 % jumps ? you really think that is possible ? because I don't
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