I think WP will have to increase fee to 3% eventually. Most of the Multipools go 3% or more today. As more ASICS on the network as more fees for low end pools. You can see that Mhash/hour was going down since the beginning of March. I hope it will balance and start going back up soon. But I think this may not happen because of the ASICS start entering the network. We may not know yet but KnC may already be mining with prototypes like they are known of doing - mining with customers ASICS and then when rate is down to crap they finally send those used miners with all kinds of excuses.

He probably has 10 mining rigs... unless he got 25Mh/s miner that nobody else has .

Hi, I have Sapphire 7950s. From what I read they supposed to give 640Kh/s at around 72 degrees and most of the ppl like them. I can barely scrape 500 KH/s out of them and need to overclock to even get there. I have 2 presently connected to 1000W supply and the other 2 to a 1350W supply. Both PSUs are gold series. I tried to put them on raisers - its even harder to get the Kh/s then, tried to blow additional air through, but they just dont want to cooperate.

I have these cards:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202026 - these are the worst, should I flash them? They are v locked and I can't undervolt them.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202030 - these are a bit better. When I run a single card I can get a good 550 Kh/s with fan at around 65% sits around 72 degrees. But I can't get 600+. These can undervolt but that doesn't do much.

I am listing AVERAGE Kh/s value, the one that shows in cgminer on top left after the 'per second' value.. I hope thats the one everybody goes by.

The best setting I found is:

1100 core, 1250 mem at 1200v core.

Should I ROM flash all these 7950s or something?

I have read a bunch of different settings but nothing works for me...  .

I use these components:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820239312
http://www.newegg.com/Product/Product.aspx?Item=N82E16817194105
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139057
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128627
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103888

Please advise how do I improve the hashes and decrease the heat.

Yeah, but mining is more fun and you have options if specific coin values jump up and down you can always switch to more profitable coin. If you just buy a specific coin you are stuck to its value.

If you are running a pool I think that its still ok, but you can't make money from their mining results, in other words I don't believe you can charge any %. Just my thoughts.

So I was pondering this for a while now and decided not to get into debt and not to reserve one.

Bitcoin difficulty has grown exponentially during last couple of years. More and more powerful devices are released with faster hashing speeds, but I think that ASICs made it all so much worse. I believe by the time May batch is released difficulty of the btc will be in a 10 billion ballpark. And thats about $2.000 a month profit if even that much. For some its a lot. But considering that you have to invest a lot in the first place and you will have to run that thing for 3 months to get your money back, and considering that difficulty will increase even more I don't believe its worth it in the long run.

What I am thinking is to focus on Scrypt for a few months and then see if they start taking preorders for next tier of BTC devices. Its possible that I'd rather pre-rder one of those next tier even faster toys.

Am I wrong in my conclusion?

Ok, on the long run its a better deal than Buying 2 mining rigs with R9 280x or HD 7590s. The GPU rigs will start giving profit sooner though then after about a month Big Bit will catch up. So its arguable. Considering size though and power consumption I guess bit wins... but only on the long run measured at least 6 months or longer. I think the best deal of all would be to add 1500$ and just buy cointerra for May batch.

So say Kraken exchange, if you exchange your btc for $ on Kraken, you are done and you don't need to submit any tax or anything?

So I did some reading, I don't know if anyone knows this but it appears that if you mine cryptocurrencies from US and then exchange them for cash or other currencies you fall under the "Exchanger" qualification and supposed to have an MTS license(?) - 'money transfer services license' or something like that?

So if you mine from US what do you do about that? Do you have a license? Do you submit your income on annual tax return form? Has IRS ever called you asked you to give them your money? I know that they don't really know yet how to qualify this type of income but they will definitely do it. So I am trying to figure out now either I need to get any license before I actually start doing some real mining and then submit income on tax return next year maybe?

Sorry I can't do it for less than 1BTC. That's the minimum bid on a listing.

You funny.

You guys are missing the point! Unless you like can't get anything else at all this is WAY too expensive to mine btc at that speed. You can buy 60Gh units for under $1000 from BFL now. Also there will be a BIG drop in price because 20nm chips are coming out in like 1 month. 2TH/s miners are already being shipped to lucky few. Anyways, I'll personally wait, mine some scrypt until I can get some decent btc miner.

LOL that facility looking quite secure...

Wow that's way overpriced for 100Gh/s and 3MH/s.

Are you DDoSed or something? I am loading blank page, where is the calc?

Selling

BFL Single 60Ghs - would like BTC2BTCBTC for it if you wanna pay in coins or just head out the listing below and Bid/BuyNow.

Check the listing on ebay - http://www.ebay.com/itm/301084983671

If you are interested - 5d2534d71235cec30d004f53f40e88bfcb3d72b2 and shoot me your address  on Ebay, or simply sell the coins and use "Buy It Now". Or tell me how to faster sell it. I need the money ASAP. Unit works great, up to 60Ghs.

Shipping from US, so you are looking at about 80$ shipping charge at least.

I also have Avalon mini, 60Ghs as well. If you buy both I will sell for 3BTC for both of them. Yes I know the exchange rate but give me a better offer if 3BTC is too much. For people who have tens and hundreds of BTCs this is nothing. Quick way to increase profit.

The only way they can steal anything from any wallet is if they get a hold of the wallet.dat file. There is simply no other way. So at some point you get hacked, you may not even notice this, then when you have enough coins to steal they will sact. I think it makes sense to change your wallets, create a new ones on regular basis and transfer the coins around and always encrypt your wallets with 128bit+ passwords. You may not know when they put a keylogger on your PC if its not properly protected. I wouldn't be surprised if some Pool sites are infected with keylogger scrypts. They dont steal accounts maybe because its easier to just get into your wallet and steal your coins especially if you have weak passwords.

I bet they try to brute force the password, running their little evil scrypts to try to hack your password every day like you are running miner every day. So if password isn't changed like on weekly basis it is eventually hacked. As more often password changed as more complicated is to hack through your wallet as long as you don't have a keylogger. There are also programs out there that would populate the password field for you without you typing anything, in that case keyloggers won't help the hacker.

When you deal with something as open and raw as Internet you need to take 10x times stronger precautions than what you'd do for something like a house or a safe. Use different PCs every month (virtual machines, image, clone etc), transfer your coins around so they don't sit in the same wallet for weeks etc etc. Its hard to catch a log on the river with a strong current.  If you get rich and catch an eye of the hacker they will be tracinh you, hacking you, following your every online move until they get a hold of your wealth. Then they will vanish and you will never find them.

Sorry to hear that OP, but maybe your unfortunate problem can be a reminder for others to watch out, you are on the Internet!

Sorry for resurrecting the topic or beating dead horse, but I wanted to share my opinion today when ASICS are already out there and much much more powerful ones are now on the pre-order.

I believe that coin mining is almost comparable to gold mining. When bitcoin started it was like a Klondike gold rush. A lot of lucky people who got to the river first got rich similar to a lot of bitcoin miners who mined thousands of btcs when they had a chance. Then the news got out a lot more miners jumped in for the riches and difficulty of finding any gold on the river or mine any bitcoin drastically increased. People started to bring heavy equipment to dig the gold out from deeper nodes and bitcoin miners started developing equipment to mine at more hashes per second.

In the end the gold rush ended when supply was almost exhausted and only people with the most expensive equipment could make some kind of a profit. Same happened to bitcoin. Mining btc today with anything but hundreds or thousands of GH/s is pointless. And difficulty increases every day. Unlike the real world there are different kinds of cryptocurrencies, the problem here is that BTC will be a foundation of this virtual gold mining for many years still and will be considered as the most solid cryptocurrency and considered as a trade value.

With more powerful ASICs being released on quarterly basis mining BTC will become pretty much impossible unless you have something like 2TH/s miner and then not long after that even those miners will struggle to mine any btc. Thats why there are more coins out there to mine now, but will these coins be ever valuable as BTC? Will gold be equal to silver, or silver to bronze? Unlikely. Even if you are able to mine 1000$ a day in Dogecoins because everything is based on BTC value and because you can't directly sell new type of coins your 'fortune' will pretty much be only 'virtual' and possible never realize itself into a real world money unless the cryptocurrency trade will pick up and people will be able to trade any coin towards bitcoin.

Will ASICs destroy bitcoin? No, it will only make BTC value stronger and higher. But less and less people will be able to mine btc unless they have very powerful ASIC miners and value of other coins will increase because of that. Cryptocurrency mining though is quite niche 'adventure'. Its more of an experience and a "game" if you wish than the actual business so it will never be as popular as gambling in Las Vegas for example. BTC is being acknowledged as possible currency in the world today and in time we may even be able to buy things on Amazon for BTC, but when this happens I bet that it will be VERY difficult and will take forever to 'mine' btc or obtain it for free. It may be legalized as a currency for transactions online but this I bet will lead to conditions put on miners that will limit them in some way.

So BTC will be there but similar to mining gold today you'll have to be either very lucky or will have to own a farm of rigs that will mine BTC 24/7 at hundreds of Terahashes per second to make some profit. And when 'gold mine' runs empty people will have to look for other coins to mine but they may never be as profitable as BTC if this coin will be kept as a base trade unit.