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on: September 22, 2015, 06:41:19 AM

is it possible to just get the barebone board? i've seen some data center miners running just barebone board on youtube. https://www.youtube.com/watch?v=okI9rQNNtTQ they don't even bother to put the miner inside a case with a fan. Just a barebone green board hookup to bunch of wires and a large fan.

on: September 11, 2015, 09:58:10 PM

Quote from: notlist3d on September 11, 2015, 08:37:58 PM Quote from: suchmoon on September 11, 2015, 08:35:19 PM Quote from: t800ch on September 11, 2015, 08:29:28 PM It may be possible to keep ahead of the ROI curve if you resell the miner for maybe %40-50 of its original price and buy the newest model when it's released. How often does bitmain release a new s-series? and how much does the resale value drop of the previous generation drop? There is no stable timeline. Last year they were releasing new miners every 2-3 months. This year the S7 is the first true new miner, so that's 9 months since last release (S5+ doesn't really count). Pricing is also all over the place. Depends mostly on difficulty, exchange rate etc, i.e. the same things that affect your profitability. Likely they will have competition from other companies before 9 months. And the other companies likely will have lower NM, even more efficient miner. But when? We don't know. well, then if a better and more efficient miner comes along that offer the best bang for my buck, I can just sell my older one and use that money to purchase newer model. So I will probably be paying 50-70% purchase price of the newer model .

on: September 11, 2015, 08:29:28 PM

It may be possible to keep ahead of the ROI curve if you resell the miner for maybe %40-50 of its original price and buy the newest model when it's released. How often does bitmain release a new s-series? and how much does the resale value drop of the previous generation drop?

on: September 11, 2015, 06:28:24 PM

Quote from: thedreamer on September 11, 2015, 06:17:12 PM What's with all the whining? Even at $.10 per kwh, it profits $275 at current prices. Diff will affect it but so will higher btc price. Should be able to ROI within a year. Or sell earlier and still be well off. Same as before. You haven't taken into account of the difficulty increase. As it increases, the profit decrease. So it's not possible to break even in a year, unless the difficulty drop. See the calculation:

on: September 11, 2015, 05:27:13 PM

I am surprised. How you miners guys making money? Do you have better luck with pooling with other miners? or maybe waiting for price of btc to go up in the long run?

on: September 11, 2015, 05:04:28 PM

Quote from: klondike_bar on September 11, 2015, 11:14:18 AM Quote from: bnkj76 on September 11, 2015, 07:28:43 AM Using mining calculator at https://tradeblock.com/bitcoin/mining , I am shocked of how much the monthly electricity cost will be for running this full time in California 24/7: $167 45% of the revenue generated in the first month goes toward paying electricity. That's a lot! thats because its california. A lot of places pay <50% of that I still don't see how running this can be profitable even in a state like Idaho or Washing where electricity only cost 8 cents. It's not possible to break even in the first year.

on: January 07, 2015, 07:05:02 AM

I really don't understand how Bitstamp's hotwallet can seemingly allow transfer of more than 13,000 coins to a external counterparty's bitcoin address without some sort of human checking or supervision. I mean this has got to be some kind of software design flaws to allow automatic transfer of this much amount of coins in such short amount of time without requiring a human administrator's manual approval. I am sure if this were done, then not as much coins would have been stolen. That's what happens when there is not enough human-enforced regulations in place. I know BTCChina always manually approves transfer of bitcoin for amount of coins that's much less than that. But regardless, this has got to expose a vulnerability which is the counterparty's risk in the centralized btc exchange. As much as bitcoin claims to be a decentralized digital currency, there's still a weakness in its design that reply upon central exchange to trade between buyers and sellers.

on: November 16, 2014, 08:57:54 AM

Read this New York Times articles. http://dealbook.nytimes.com/2014/01/21/why-bitcoin-matters/?_r=0 As for the volatility of bitcoin, it's true there's no central bank that serves as a reserve to back it up. The people who back them up are the ones who see enough values in security, privacy, and the convenience to exchange their fiat currency and golds for the bitcoin equivalent.

on: November 16, 2014, 06:53:43 AM

Please help me to answers the questions I have regarding Bitstamp's exchange chart. https://drive.google.com/file/d/0Bz-PAzbRkPrSMlZQbmdkRFhmVEk/view?usp=sharing Thanks!

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