Perhaps in my case because they're all running on 16x slots and they're 7970s I hit the limit earlier.
Yeah shouldn't be too big of an issue since it's working for you now. That's a pretty good thought. Must be why some mobos reduce the speed as you add more cards. |
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Although I don't know the technicality in this area, it would appear that the amount of data the GPUs are requesting is too much for the motherboard to handle, so naturally the higher the latency, the less bandwidth is being taken up.
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My two 7950's get 510 each clocked at 1010.
Whats the power consumption on those? @ that setup. About 169 watts each. That was measured by taking the 409 watts I measured at the wall, subtracting 72 for the system, and dividing by 2. Minus the PSU inefficiency... Either way even at 169, those are pretty efficient cards. hrm... That's the beauty of the new architecture. Quite comparable to FPGAs if you ask me, and low resale value risk.  |
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Personally I think people are hyping way too much over ASICs and the huge "leap" in profits they will gain, while in reality they wouldn't.
There will always be only 7200 BTC created per day (excluding block reward drops). At the most you are simply benefiting short term. In the long term you would make just about the same as a GPU miner due to difficulty increases from widespread adoption of ASICs and the high prices for ASICs.
Just look at how unrealistic it is for many FPGAs out there right now already due to their high cost.
The biggest increase you would see from ASICs would be power consumption, but expect hash rates to be around the same levels as the FPGAs and GPUs.
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16 days for an okpay transfer of only 1000€  Weird. Gox stated the delays were only for Dwolla and US wires. Oops, looks like Gox lied again. |
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Do you live in the US? The best bet would be to use Bitinstant, deposit cash at your local CVS, Walmart, or 7-11 and have that cash funded into a Mtgox account by Bitinstant.
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It takes BTC to make BTC. Once you get some, check out the GLBSE or various deposit programs.
And of course, invest in NastyMining like he wants  |
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Those hashing rates are really low. I'm surprised, but definitely keep your temperatures lower. Make sure you have adequate cooling and also try undervolting the card, it really helps with power consumption and temperatures.
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This specific miner is more than likely still mining somewhat solo otherwise directing hashing to pools.
Network hashrate is still roughly on the same levels as when mysterminer were soloing like a beast.
Yeah, the block solving rates of the other pools went up significantly, especially deepbit. |
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Way too many people using this service now. Leased work finishes way too fast for it to be viable as a primary income source, unlike how it used to be  There are two types of users: purchasers and miners. I need to know which you are to fully understand your statement. Either way, you just need more purchasers so that the hashing power is leased more often and split between more purchasers. So, there are not enough people using this service . Yeah, I'm talking from the mining point of view. The amount of purchasers is way too thinned out I believe. I'm sure quite a few people that apply check only the purchase option to get accepted faster but then decided only to mine |
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What are the specs and power consumption levels of that setup?
Not good  But I have cheap power so efficiency hasn't been my number one concern. All the cards plus the bitForce single on the left get me about 8GH/s. Electrical usage is about 3,680 watts and costs me .0479 USD. Some things I want to do to trim my power is flash and downclock the memory of my 4 6970s and also downclock/volt/whatever the CPUs. Not sure how much that will really save me though. Haha that's quite high, but you could see a huge decrease in consumption by undervolting and underclocking the memory. Leaving the core the same is good. My rule of thumb is to undervolt and underclock the memory while keeping the core at stock speeds. Another question, did you redo the electrical to handle that load? Or was your pre existing wiring good enough to handle that amount of current? |
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Definitely go with the 7970 if your preference is as a hobby, you can also use it for gaming. I currently have a hobbyist mining rig consisting of a 5850 and 7970. My electricity cost is around $0.11 in the summer so it's about the same as your rates. You can definitely still make a good profit after electricity costs. My suggestion is to undervolt the card, which can bring power consumption down to 150, and even 70 if you underclock the memory and core. I wouldn't go with the Asus or the HIS though, the Sapphire is the best IMO. http://www.newegg.com/Product/Product.aspx?Item=N82E16814102982 |
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The problem is, once efficiency goes up, the difficulty will go up as well, which will eventually even out the playing field for profitability no matter how advanced the technological advancements are.
(Just like how CPU mining used to be as profitable as GPU mining is now due to prior lower difficulties)
I absolutely agree. But, if true, it will mean that ASIC mining will become the only competitive form of mining. We were fortunate to see GPU mining still somewhat competitive (maybe not in running costs, but in acquisition costs) during FPGAs market penetration. I don't expect either GPUs or FPGAs to remain competitive once ASICs start getting delivered. (I hope I'm wrong though, and that FPGAs remain competitive). I'm sure FPGAs would still work out, due to their low energy consumption. My prediction is that ASICs won't become widespread and viable until late 2013. |
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Haha I doubt bitcoins would be worth >$100 right now, but definitely not below $4 ever again, maybe even $5. The great spring stability is a great indicator since during that period the price remained stable despite the amount of bitcoins circulating increasing, telling us it will have only 1 general direction: UP  Golden Opportunities are falling under the iron grip I think we underestimate the devastating effect the MtGox hack had.. We understand bitcoin clearly so we knew this didn't mean bitcoin was not secure, and most here understand how a hack like this, after such explosive growth, was unavoidable and ... neededbut the to everyone else ..... I find the reasoning quite odd. Why would bitcoins be worth over $100 when there is such a small spending infrastructure in place for bitcoin? I would expect it to be a ways bit higher than it is now but definitely not a huge difference like that. A significant segment of the public was excited about bitcoin at the time. After the hack, 90% of those people swore off bitcoins and made up their minds it was nothing but a scam. If they hadn't, our community would be MUCH larger by now. All those extra hands would have built the spending infrastructure much quicker. But, meh... we've done well enough and it's time we are rewarded for our hard work. We're not ready to see $100, but with slow steady growth, we will start to pull back in some of the people who thought it was a scam. Makes sense, I haven't been around long enough to see that widespread amount of attention. |
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probably more likely that some idiot/kid/assembler used a tray of 7970 cores on 7950 boards
Yeah that's what I thought. Why would there be extra processing power just locked away for no reason except to make it cheaper? (thereby reducing overall profit margins) |
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There is no such thing as dirty bitcoins.
Mtgox taints stolen ones and freezes your account if you have some in possession. I'm sure this is what he's trying to avoid. But as I know I don't believe any exist publicly. Then don't use exchanges which steal your money.  There is no such thing as dirty coins. Well if you're a miner good luck paying the electric company the bill in bitcoins. If you have some dirty coins in your wallet from transactions you're doomed with MtGox. Maybe in the future, who knows  |
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Just undervolt as much as possible while keeping at the clocks you want to keep them at. Don't want your VRMs blowing out and ending up with a dead card.
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this card is not the same as reference card sold worldwide, it has better components and is also equipped with 6+8pin power connectors (just like 7970). It looks to be a special board. Thus normal 7950s are not unlockable and this isn't all that interesting and the title a bit misleading. What should I change the title too "Special 7950 boards unlocked to 7970 rating" |
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