are you using 64 bit OS? if not you might be ruining out of address space. and you can get 2 6950 for under $600 flash them and have the same mhs, the only time i see 6990 being good is if your out of pice slots
I fail to see how a single core 6950 would reach the same mh/s as a dual core 6990 even if you fool the 6950 into thinking it's a 6990 |
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How did they convince you to buy those cards? Not trying to be a downer, but they are overpriced for what you get.
For mining? 6990 is one of the best for price to performance. The difficult part is finding one, as it is sold out almost everywhere. I wouldn't say they are the best "bang for your buck" card. They are 730$ each for 830 MH/s; but you could get 3 5850's for 450 (3*150), they each hash @ 300MH/s, totaling out to 900MH/s.... true, but you can do 2 x 6990 on the same rig, or even 3x. Then the $/Mh becomes much more favorable. |
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MSI 790FX-GD70 - $120
AMD Sempron 140 - $35
2x1GB DDR3 - $FREE
4x HD 5830 - $450
Corsair AX850 850W - $170
$775
+5% tax = $813.75
Let's say $850, some items have to be shipped.
@ 245 Mhash/s per card, that is 980 Mhash/s
1.15 Mhash/W
1.15 Mhash/$
Also electricity is 7.15 c/kwh, so 24/7 30 days per month @ 850W = $43.76/mo
I'd like to know where you got 4 x HD 5830 for $450? are they used? |
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http://www.newegg.com/Product/Product.aspx?Item=N82E16813128441&Tpk=GA-890FXA-UD5I'm planning to install 3 6970 on it. Will it allow the 6970 reach max mining potential? The thing I'm concerned with is it says: 2 x PCI Express x16 slots, running at x16 (PCIEX16_1, PCIEX16_2) (Note 1) 1 x PCI Express x16 slots, running at x8 (PCIEX8) (Note 2) 1 x PCI Express x16 slots, running at x4 (PCIEX4) Would the "running at x8" and "running at x4" affect MHash rates? or I can ignore that and just plug the card in any PCIe slot?
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How did they convince you to buy those cards? Not trying to be a downer, but they are overpriced for what you get.
For mining? 6990 is one of the best for price to performance. The difficult part is finding one, as it is sold out almost everywhere. |
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Can someone explain me why the major trading sites have absolutely crappy deposit options? No Moneybookers, Neteller, Visa, Mastercard, usually not even Paypal?
That's something they really need to improve on in my opinion.
They are easily reversible by the buyer, which is no good. Too much fraud |
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6950 is 200 watt max each right? 5850 is 160 watt? so that's 560 watts, leaving 190 watts to the system, which I think is not going to be enough, unless you have some really low power cpu/mobo, no HD and single stick of ram.
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Anyone have concrete numbers on mining efficiency for windows vs linux? I'm planning to get a mining rig, but not sure if I should go with windows or linux? if the efficiency is similar, I'm willing to sacrifice up to 5% efficiency for the ease of set up and use with windows gui miner.
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Trying to connect to Silk Road I get a blank page. Is anybody else experiencing the same problem? Viewing the source, I get: <span style="float:right"><form action=" http://ianxz6zefk72ulzz.onion/index.php/hidden/login" method="post" accept-charset="utf-8"><span class="flashdata"> </span><span class="flashdata"> </span><br /><input type="text" name="user" value="" /><input type="password" name="pass" value="" /><input type="submit" name="submit" value="Go" /></form></span> Have they been busted by Law Enforcement already? Just watched it go down myself. Connected once just fine, and then the white screen. Could be a bad node. Glad to see others are experiencing the same problem, and that I didn't get banned or something crazy like that... I'll try again some other time or change my VPN server to another coast and report back! BTW: GoldenFrog's VPN works great as another added layer of protection Well, I signed up less than 48 hours ago and now experience the two text boxes and submit button, but when entering my username and password I can log in and navigate through the website normally. Can people still register? mind send me the register link? |
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so how do you register for an user name with silk road? all I see is a login box with no register link.
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always use escrow service like clearcoin to buy on classified, NO ONE should be trusted on classified. Once you sent the coin, it's GONE.
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I heard it's being ran by one person. So it can be slow. They said they are hiring help.
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wow uptick with huge volume, this is great pattern in TA. Probably will up at least 20% from here, before pausing.
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yes mtgox fee is rather high, a flat fee based model (or at least past a certain dollar amount) would've been more sensible. The current fee model encourage buy and hold instead of frequent trading. By frequent trading, you are more than likely to lose money in fees.
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I imagine mtgox hires multiple people to run the thing efficiently, and then there are fixed costs of server/office. I imagine they have a pretty healthy profit, but profit margin should be around 50% or so. Though I agree the fee is kinda high if volume really picks up. I think a $100,000 trade doesn't really cost that much more than a $10 trade. It should be a flat fee based model, like most stock brokers. Or at least do a flat fee past a certain dollar amount. 1 million * .0065 = 6 500 not bad for one day, I wish I would have made mt gox  |
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Dude, mtgox is not the only place that trades the coins, tons of coins are traded privately or on bitcoin-otc. USD trade has significant volume because traders use extremely high level of leverage. I can trade several million of USD with just a few thousand dollars in the forex account. There's no leverage in BTC trade, therefore the volume is lower. If we were allowed to use 500x leverage like on forex. We'd see volume increase several hundred fold. The TOTAL volume at mtg today was 681 coins. 681.
There are over 6.4M coins in the market (not counting lost coins).
Because the prices are rising, people are holding them. Unfortunately, that means if you want to get bitcoins, you have to pay a premium, because they aren't circulating. No one is USING them.
Silk Road isn't the problem (though a Tor accessible website as the only place to really USE coins doesn't give the soccer mom a warm fuzzy).
If you want the economy to thrive, then sell and/or trade some of the coins you're holding on to.
Guess what will happen eventually? No one will WANT the coins, because they couldn't get any. Guess how much the coins you're hoarding will be worth when no one want them?
My apologies, I in fact was misled by the mtg graph of volume. I expected an end-of-day graph to be volume for the previous day, when in fact it "reset" and was volume for the new day. My bad. However, the point is still the same. 22,000 BTC volume for a day against a population of 6.4M coins is 0.3% of the available coins. By comparison the trade volume of ONLY the US Dollar and the AUS Dollar amount to 25% of the total circulating dollars per day ( http://www.businessinsider.com/chart-of-the-day-trading-currencies-2010-10). The total US Currency Population is approximately $930 Billion ( http://www.freerepublic.com/focus/f-news/2697687/posts and http://www.visualeconomics.com/the-value-of-united-states-currency-in-circulation/). We need to see trading volumes in the Bitcoin market approach 1.6M coins, per day, to see the same type of "stability" the US Dollar has. Will that drive the price of BTC down? Absolutely. But guess what, that price will be much more stable and much closer to the realistic value of a single BTC. Right now the prices are due to hoarding, and that's not sustainable, it WILL crash. I'm not a naysayer of Bitcoins. I believe in them. But if we as a community want them to succeed, you have to use them. Otherwise, BTC aren't going to be a currency, they're going to be an asset. I have assets, my MacBook Pro is an asset. Put it this way. There are people with WAY over 21,000 BTC in their combined Wallets. What would happen if they decided to sell all of them right now at the "peak" of the market? Only ONE person gets to sell at the peak. Once they've sold, it pushes the prices down. If that sale is large enough, it will devalue the current BTC market itself significantly. Once people start seeing BTC drop significantly in value, guess what will happen? More people will jump to sell because they're seeing the investment they thought was worth X quickly become X-Y, while Y continues to grow. The smartest people in the Bitcoin market are selling coins every day. Because if they can convert their current stash of coins into US Dollars and do it slowly enough to not impact the market, they'll win. Lesson: If you aren't selling coins every day, you're running the SIGNIFICANT risk of rapidly losing a significant amount of money. Your "gains" are unrealized until you have something else in your possession. Doesn't matter what it is, a shiny new MacBook Pro, or an iPad, or Amazon gift cards, doesn't matter. But until you have something ELSE of value that you've used Bitcoins to acquire, your gains are unrealized and you run the risk of never realizing them. You are |
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The transaction should be fine without a fee. Every transfer to mtgox was done without a fee, and all of them were fine.
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I find that even aggression 1 is driving temperature too high (80C) for my card (ATI 6770), how do I set the speed even lower? I currently get 130 Mhash/s but I'm ok with lower speed if I could get my GPU temperature down to 70 level.
Try to lower the memory speed. you mean get a gpu utility and manually down-clock the gpu? |
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