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There will be 21 million bitcoins.
Estimates have the ending of mining being some time after I die, so I think we're good.
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Oh, sorry guys, while you were asleep I bought up several thousand bitcoins just for shits and giggles.
Sorry about running the market up.
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Good point, even so, handling bandwidth requests for 8 different slots simultaneously would surely add some sort of lag.
A motherboard isn't an infinite lane highway.
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I am rather new to bitcoin, and not so tech educated,
bought some btc a month ago, and now I want to mine as well, joining the pool
Can you please send me list of hardware components to buy, that would be easy to make work
budget 3000-3500 usd
someone said that best price-electricity consumption-hashes output gives 5870 gpu,
so something based on that card
are there MBO-s with 4 gpu slots ?
or only with 2 ?
if someone could just post their configuration, please
and what mining toolsoftware you use
Here's the configuration of the computer I'm currently on. Two 5870's An Athlon II X2 250 A Foxconn 790GX motherboard An Antec Earthwatts 750w PSU 4Gb DDR3 1333 RAM 500GB Wd Cav. Blue HDD Running caseless I use poclbm to mine, and MSI Afterburner to overclock. Now, if you want a 4 card configuration, and you want it cost effective... I'd recommend the MSI 890FXA-GD70 4 58XX series cards A Sempron 140 or Athlon II X2 (Don't need much in the way of a CPU, OK to skimp here) A cheap hard drive. (Ok to skimp here.) (I personally get SATA 6Gb/s 500Gb Caviar blues, because they'll maintain most of their resale value for a while.) A solid PSU - Antec 1200w Quattro (Don't skimp here, it's important) And run caseless/a mining case. (Ok to skimp here, but for sake of airflow/temperatures, you'll want to come up with something.) And pick up a 2Gb stick of DDR3 (Ok to skimp here) With that configuration, you can probably build 2-3 of them. You'll be pulling mad Gh/s in no time flat. |
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I never implied his 8 card implentation would work in Linux.
I'd like him to test it just to see personally.
However, with 8 cards over PCI-E that's a total aggregate bandwidth of 128GB/s
More than double what AMD's HyperTransport can currently do, and Intel's Quickpath Interconnect.
If there's some magical chip on a motherboard that can handle aggregate bandwidth that high, by all means, let me know.
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If you look around one of the common things people do is tie a fan or two down right over the internal cards on multi-gpu setups.
It probably helps to have airflow directly over those points.
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I'm almost positive that I read in another forum post Windows is capped at 4 GPU's. If you want 8 you'll need to go with Linux.
http://forums.nvidia.com/index.php?showtopic=97478 claims differently. I have no first hand experience, so I can't say directly, but I see noe reason why windows would set such a limit. /agreed as to possibly destroying the FSB though. Consider an externally powered PCI-E riser or something. That forum post on Nvidia.com is about 4x Dual GPU cards. OP is trying to use 8 single GPU cards. The difference is... They only use 4 PCI-E slots Dishwara is trying to literally use 8 PCI-E slots Big difference in practical application. I'm not talking about practical application, I am talking about software limitations. 4 Dual GPU cards still act as 8 physical GPUs. Are you saying that if I put 4 GPUs in my windows machine and then bought a PCIE Raid controller that windows would not be able to recognize the 5th PCIE device? I don't even think it's 100% a software limitation. It may very well be a hardware limitation, because of the amount of bandwidth needed/available to run that many devices over PCI-E. |
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I just can't see, in a setup like that, a point where one or more cards isn't sitting idle because it has to wait for free bandwidth on the bus to transfer it's information, causing lag/latency internally.
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I am using power from PSU itself. 4 pci 6/8 pin attached to the psu itself. Also another 2 cable was given with each has 1 pci 6& 1 pci 6+2.
So, with one power supply, i connect 4 cards which all draw power from psu itself.
Regardless of that fact PCI-E slots provide some power to the cards, whether they're externally powered or not. |
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I am using cooler master silent pro gold 1200 W, 2 nos. giving me a total of 2400W.
Also, i don't understand how it will blow FSB?
Motherboards provide power over the PCI-E slots to whatever's plugged into them. Upwards of 75w per slot. 75x8=600w If your motherboard tries to pull 600w through it, it'll probably fry internal connections/blow out the bus. Also PCI-E 2.0 X16 slots can provide 128 Gb/s of bandwidth It has 16 lanes, can do 8Gb/s per lane. Let's say you run at the max speed of each slot... 128Gb/s * 8 = 1024 Gb/s That's over a Tb/s Do you think your motherboard can internally handle data transfers that high? Now, that's if you're loading these cards 100%, which hashing doesn't really do, but still, in order to use them all simultaneously hashing you will probably pull some impressive bandwidth numbers. Possibly high enough to blow out the bus/stall the system/crash the system. |
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I had that same issue too directly on my motherboard.
What I found is a small capacitor on my motherboard was keeping the card from sitting flat out.
As far as in a flex connector, you shouldn't run into an issue unless something weird is going on with it.
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I literally just having them sitting vertical in the slots.
There doesn't appear to be enough stress to snap them or anything.
They sit just fine, mind you they have a very slight angle, (5 or less degrees off from what it should be) definitely nothing I'm worred about.
The PCI-E slots give a lot of leverage.
These are Sapphire 5830 Extremes, so they have pretty big heatsinks on them too.
As long as you're not trying to do this with massive dual GPU cards and like a flimsy motherboard, there shouldn't be any issues.
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Dishwara, switch to Linux.
If this is going to be a dedicated machine for shareholders, you'll be much better off.
Secondly...
How in the hell are you powering that behemoth?
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I'm almost positive that I read in another forum post Windows is capped at 4 GPU's. If you want 8 you'll need to go with Linux.
http://forums.nvidia.com/index.php?showtopic=97478 claims differently. I have no first hand experience, so I can't say directly, but I see noe reason why windows would set such a limit. /agreed as to possibly destroying the FSB though. Consider an externally powered PCI-E riser or something. That forum post on Nvidia.com is about 4x Dual GPU cards. OP is trying to use 8 single GPU cards. The difference is... They only use 4 PCI-E slots Dishwara is trying to literally use 8 PCI-E slots Big difference in practical application. |
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In 2007-2008 the Dow Jones Industrial Average rose rapidly to 13,000-14,000
A few months later it fell to around 6,000
This is what markets look like before a crash, it actually doesn't bode well.
That was actually my point. I'm 34, old enough to remember the Dot-Com bubble of 2000 and I followed *very* closely the housing/stock market crash of 2008. That's why I'm following this with interest. It will be interesting to see how this plays out. There are only so many Bitcoin creations allowed, and even though many people are buying ridiculous levels of mining hardware -- what % of the population are they, really? Just because it seems like "many people" are buying rigs, it's because we all frequent the Mining subforum of the Bitcoin.org forum. A lot of people have difficulty with mining software/hardware (they're not technically-inclined enough) and/or they just want to play games with their gamer rigs. And what if people buying mining rigs are what will SAVE Bitcoin? I mean, what if we NEED enough bitcoins for new people -- lots of them -- to buy and use bitcoins? After all, they're not being printed like US Dollars or anything  What if not mining ENOUGH causes bitcoins to rise rapidly in price and/or be unstable in price, which hurts their general use? It would be hard for my business to accept them when the price changes from $10 to $14 in one day. Every business would have to be a currency exchange, with a real-time ticker showing the MtGox exchange rate  Matthew This is why businesses should just set their own conversion rate, independent of a currency exchange. When you have a business, who's prices are directly tied to an exchange, it's not the value of the product you're purchasing backing the Bitcoin, but speculation. We'd be much better off in the long run, if businesses would set their own conversion rates and account for inflation based on difficulty, without necessarily looking at current exchange market values. I essentially don't want Bitcoins to = Oil/gas That's like a department store setting their prices according to Forex. NO ONE does this. |
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Do you have anything like NoScript running?
If you have .01 and you click the Pay Me Now button, usually it's NEAR instant.
BTCGuild was having some issues last night, but I doubt that has anything to do with what's going on now.
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Your wallet is located...
C:/Users/[Your username here]/AppData/Roaming/Bitcoin
It's a file called wallet.dat
I assume you're using Windows.
If so, that's the location.
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In 2007-2008 the Dow Jones Industrial Average rose rapidly to 13,000-14,000
A few months later it fell to around 6,000
This is what markets look like before a crash, it actually doesn't bode well.
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Antec Truepower Quattro, a nice 1200w PSU.
Can't go wrong with awesome.
Just make sure you never get those power cache cables mixed up.
They're deadly important.
It should do just fine.
As long as you keep your wire management tidy, and keep your airflow good, you shouldn't run into any issues.
There are scripts floating around that can tone your machine down if the temps get too high, you might want to look into those.
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