I may not be the cheapest price, but I have an automated store, and take bitcoin. They are $12 plus 99 cents shipping converted to bitcoin at mtgox rate. Maryland here and in stock, so shipping is fast to east coast, slow to west coast. http://cryptoanarchy.us/store |
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As I said, mining is now constrained by the supply of video cards. I had now two orders canceled by suppliers who said in stock then went to out of stock.
Paul
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I had two 5870's coming ordered when in stock not at newegg and they were canceled after the fact this morning.
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Heat build up in the summer will be a problem first. The AC systems in those buildings are not designed to take out the heat of many mining machines in addition to the original intended heat load. It will get warmer and those uncomfortable will let the word out where the heat is coming from.
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After every difficulty change this happens. It is the way difficulty is computed against a sliding window. Difficulty figures will be correct in 24 hours or so. |
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I bet next jump will be to >10^6 I bet 800 - 850k. I say 700k Mining is now constrained by the supply of ati cards. |
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What are you going to do with your Bitcoin wealth once your coins hit upwards of $10,000 a pop?
Pay of my debts, all denominated in nearly worthless FRN's, and then retire to the first libertarian seastead if the 'launch loop' isn't yet ready to take me to my ranch on the Moon. Just buy a cruise ship and park it in international waters. It may take a few bitcoiners pooling their resources for that. Now that sounds like a good idea for next year.  |
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Hi I am not sure if this is actually working. You could try using Msi AB to lower the voltage to 1025 which is what I am running at. It runs cooler and seems less noisy however I dont have a watt meter to check. Could you kindly see if lowering the voltage works? Also could you share how you got your dual 6990 to run, I am having the same rig as you but my dual 6990 cards refuse to mine unless they are xfire together.
cant get msi AB to change the core voltage for some reason. Ive checked the box that allows it in the settings but the slider is still blank. Also i have xfire enabled. You need afterburner 2.2 beta for it to work on the 6990. I have beta 3 loaded and I can lower my voltage now. I could not control it either with 2.1 on my 6990 |
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$999 macbook air 11?
I know there are cheaper ways. But that thing is pretty small!
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Fee rates will tend to go down with competition, since even a minority of miners willing to accept a lower fee will not unreasonably delay a transaction's acceptance rate. E.g. if 1/6 of miners are willing to accept your fee the time to get 6 confirmations is doubled on average. That way most users will only pay a fee that enough (but not most) miners will accept. These miners will make more profit (from transactions the majority reject) while only contributing a minority of computer power. So the rest of the miners will have to also accept these low fee transactions, and there is really no motivation for them not to, as the real cost to include a transaction is negligible. But then some miners will try to get an edge by lowering fee requirement even more, and the cycle continues.
Once fees go way down, there is only profit in generating blocks if you can do that easily, but that will destabilize the whole BitCoin concept.
The only thing that can save the day is the minimum fee of 1E-8, since there is no motivation to include a 0 fee transaction.
My suggestion is to change the way block rewards work, so that mining goes on practically forever, and not stopping
~2138. But that's for another topic.
2138 is a hell of a long time from now. |
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According to these numbers (and at ~20 cents/kWh) up to ~ 1 year 5830s are the best cards, if you want to mine longer, 5870s take over until ~1 1/2 years and if you want to mine even longer than that, 5970s are the best cards you can get.
I won't publish my sheet again unless someone really needs to see it though.
For shorter term mining up to one year btw. there is nothing even close to 5830s (if the prices, wattages and hashrates from the OP are correct!)
5970's are the best cards but now as of today they are going for $1000 USED on ebay. I know people can sometimes find them on buyitnow auctions for less. Those often last minutes before they are snapped up. http://cgi.ebay.com/XFX-ATI-Radeon-HD-5970-HD597ACNF9-GDDR5-SDRAM-PCI-/150612846079?pt=PCC_Video_TV_Cards&hash=item231139a5ff |
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The next difficulty increase after the one coming Monday, I'm predicting/speculating that it's going to be MASSIVE.
Four things make me say this.
1. Recent coverage of Bitcoin on popular news sources.
2. The influx of brand new miners, as is evidenced by the forum. (Look at all the newbies that are popping up now asking for help getting their brand new mining rigs up.)
3. Major pools are seeing huge increases in their processing power.
4. The runaway pump on the open exchanges that's been happening over the past few days.
Anyone think we'll top 1,000,000 difficulty on 131040?
I'll start an open bet.
I think we'll top 1,000,000 difficulty on 131040.
I'll put 0.50 BTC on it.
There are not enough ATI cards out there available for mining to bring it to 1,000,000 this round. And that is good. Mining is currently constrained by the supply of ATI cards. Browser mining, FPGA's or ATI increasing manufacturing of older products could change this, but right now I am betting about 600,000 at the most. |
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So far I would have done better buying BTC then mining as well but....
All of my video cards are worth more then I paid for them. Most of them have gone up in value 40%. I paid under $200 for most of my 5870's. Now they are north of $250 and getting harder to find.
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knightmb, you should use a portion of your fortune to make a big time transaction. Maybe buy a Tesla Roadster. Maybe you could talk to Elon Musk directly about it. I mean hey you've got 5 million right now and the sky is the limit. Some big purchase would get lots of attention. You'll probably be a billionaire within the year.
He might not want that kind of attention though I love the idea and love the Tesla. I wish I had one! Today, besides bitcoin..... Real estate is a steal in many places. That is what I would buy. Not lots. Just some cherry picked good deals. |
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With bitcoin being published as open source, it will prevent a whole pile of patents from happening in the first place. You can not patent (legally that is) anything that is already being done out there though often patents like that get granted.
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I looked for more cards today and found everything even higher and harder to get today.
6950 and 6970 are the main cards available now.
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Bitcoins are being pegged to the price of electricity as we speak.
I thought they were pegged to pizzas. |
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Makes more sense to get two motherboards that support 4 slots each and pick up 8 total 6990s with one water cooling system for both. I read online somewhere a guy bought a 200$ fridge and build around it. he broke off the door and he covered the components with it. it must have been no more than 4x 5 feet
A $200 fridge does not have anywhere near the cooling capacity required. It would trap more heat then it would expel. Water cooling is the way to go for multiple 6990's. I would love to see that heat used for something, like to heat a small apartment buildings hot water. |
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