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Question: S7 or s9
S7
S9

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Jigor
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May 10, 2017, 02:45:01 AM
 #1

Should i add another s7 or save up for a s9?
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aakashsangwan
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May 10, 2017, 05:18:53 AM
 #2

If you refer to this link on 99bitcoins.com
https://99bitcoins.com/2016-bitcoin-mining-hardware-comparison/

Here is a comparison between s7 and s9 and you can clearly see that s9 is the winner and as far as I know you should always check the Joule per GHs rating of miner, whichever is low is more power efficient and will use less electricity per GH.
So my advise is to save money for s9.
Although I'm a newbie in mining.

SA Bitcoin Brothers
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May 10, 2017, 07:35:56 AM
 #3

Should i add another s7 or save up for a s9?
It depends. If you have cheap power. S7s go for cheap secondhand. But if your electricity is expensive, go for S9
sidehack
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May 10, 2017, 01:43:37 PM
 #4

And depending on the specific model of S7 there are different ways of going about it, but they can usually be made to run more efficiently or at a much higher hashrate. Sometimes 4TH/1KW for $200 beats out, at least in the short term.

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May 10, 2017, 05:19:54 PM
 #5

my power is 9.5 cents per kw
leowonderful
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May 10, 2017, 06:05:41 PM
 #6

my power is 9.5 cents per kw
Definitely S9 then. It's a little on the high side but if you were to add an S7 you would hardly be making anything. I wouldn't even touch the S7 at all at that price, instead I would really be looking at altcoin mining as profit margins are usually higher. It's still possible with an S9, though.














 

 

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DoomDumas
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May 10, 2017, 09:55:34 PM
 #7

Should i add another s7 or save up for a s9?

Is the S9 are the one from Bitmain with few backdoor ??

I so, I'll never buy one !
NotFuzzyWarm
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May 11, 2017, 08:57:59 PM
 #8

Should i add another s7 or save up for a s9?

Is the S9 are the one from Bitmain with few backdoor
??
I so, I'll never buy one !
After all the kerfuffle about that (never activared) code it has been entirely removed by Bitmain. Introduced in the 1st s7's it was for folks to have remote-access to their miners via the Cloud but the service was never implemented.

-Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats http://bit.ly/1Qjt6lj
-For bitcoin to succeed the community must police itself.
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
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May 13, 2017, 07:53:01 AM
 #9

Should i add another s7 or save up for a s9?

Is the S9 are the one from Bitmain with few backdoor ??

I so, I'll never buy one !

It is fixed in the latest firmware from Bitmain so there is not anymore any backdoor. At least this is what Bitmain claims and the community has not reported anything wrong for the time being so I guess they have really fixed it.

OP, S9 is the perfect choice for your energy cost as with the S7 you will lose more money than you will invest.




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