you guys don't actually get it. why would you want to invest like 50% more power consumption for a mere 30 mhash/s? is this a benchmark? try benchmarking actual mining efficiency.
are you sure increase for 0.2V give 50% more power consumption? well, around that, yes. maybe 30%. |
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with your 2500Mhash/s, you should be doing about 2100 shares per hour, or at 1.3kW 1625 shares per kWh. that's 4.16 or $5.85. still not too great. 19kWh per btc is probably not the most efficient mining setup. did you increase the voltage on your 5830s? if yes, that's probably not efficient (in my case it's not), undo it. go with whatever clocks your stock voltage allows.
I think you did a little too much theorycrafting. If you mine at a pool, just check how much BTC you produced over the last 24h. Those are the real numbers, including pool downtime etc. deepbit shows that directly at the account page. If you calculate with requirered shares, that does not include difficulty increases. I was just going by the lastest numbers deepbit provides, which varies between 1.3 and 1.5 BTC/day. The MH/s rate deepbit shows me (actual number for a solved block) varies between 2100 and 2300 since overclocking is not quite complete yet. Btw I did not change anything on the voltages. Shares look different though, I took some of the numbers from deepbit and divided it with the time it took to solve the block, result is 32-33 shares per minute, which is 1900-2000 shares per hour. You left out all other parts of your system except gpus so you can't really compare to my rigs. CPUs are 50W each, HDDs 15W each, Mainboard itself 10W each, RAM 2x15W each = 105W per rig. I've disable all I could like second lan, sound, firewire etc. and I don't know what else I could do, besides probably underclocking/volting the CPU which I will do soon. of course i didn't include difficulty increases. i didn't include variance, either. on btcmine i get about 0.5% stales and have had 0 downtime for the past few weeks. i can't include difficulty increases because i don't know where the network is going - it can go anywhere: http://bitcoin.sipa.be/growth-10k.pngif i included variance, i'd have to draw a gaussian curve. i don't think the op wanted to know at which % we pay which amount of $ but instead the expectation value. i have included the 0.5% stale rate. somewhere around this forums there is a post which says 1 share per minute requires 71 Mhash/s. that's a fixed value as a share is a solved block with difficulty = 1. maybe this explains something (i don't quite understand some of your post). it's much easier to calculate with that, because the chance to find a block is always 1 share divided by difficulty. So if I'd ask you what you earn at your job, you would tell me what you should earn measured by the time and effort you put into your work, not what you boss is actually paying you and not subtract taxes and stuff.  no. |
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idk :< let's say your PV has 3kWp. at ~10% efficiency that's 0.3kW. you'll get ~750 / year from government and you won't be able to use your PV for your own use at all. (if you had decided this back in 2004 you would get ~1500 / year). if you decide to use the electricity generated by your PV yourself, you'd get ~16 cents per kWh, so ~410 / year + ~2600kWh for free.
they will stop paying you after 20 years. so if you install your 3kWp PV now, you'll have earned 15,000. 3kWp costs about 11,000. that's less than 2% profit per year which is less than our inflation rate. if you use the electricity yourself, you'll get 8,200 and 52,000kWh. that's a pretty good deal (0.22/kWh).
after the 20 years you will still have your 0.3kW PV, although i highly doubt it'll last much longer by then.
downsides: you have to pay for maintenance, which is probably not too cheap.
well, it's like mining bitcoins. you should have started your photovoltaic yesterday.
I'm confused, you get paid to use your own electricity? yes - if you decide to buy/install PV in germany, but only for the first 20 years of operation. they encourage us to use renewable energy. of course they won't pay for electricity which you get from your local supplier, only the energy you produce with your PV. edit: the thing is.. it's not too profitable, because your PV is expected to meet death not long after 20 years. if not, it's going to be at least a lot less efficient by then. Yes, indeed. That's still pretty interesting, but seems a huge payout someone must be subsidizing. Here we do it in reverse, for example: http://www.northerntool.com/shop/tools/product_200441246_200441246?cm_ite=4570001&cm_pla=Alternative%20+%20Renewable%20Energy%3EBattery%20Backup%20Packages&cm_cat=Google&cm_ven=AggregatesA 30% Tax Credit (meaning you can write off 30% of the cost from your income). So we incentivize people for the upfront costs, rather than continue to pay them down the road. Seems like it might be better your way though considering the difference in rates of adoption heh. On another note, this system was what surprised me pricewise. 22Amps (at 120Volts) including batteries, panels, transformer, and all for $2k seems like a steal. 22Amps is enough for about 2 full mining rigs. So I envision 3GHash/sec for about $4,500USD and no electrical costs for the next 20 years. If I had a house, given my electrical costs here (.4USD / kWh) I'd be thinking long and hard about that! isn't that 1.8kWp ? so effective 180W. it's weird, though, because all the sheets in the internet say it's 2,500-3,500 per kWp. i guess this bundle is low-quality (or the US has some awesome prices). |
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5870's: 34-38°C
5850: 67°C
5770: 75°C
that's funny. my radiator isn't even capable of cooling the water down to 34°C. my 6950 runs at 52°C. |
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I'm getting 440 mh/s on my ref unlocked shader card. Its doing 990 mhz 1.25v on core and only at 71c. My non ref frozr II with locked shaders is only doing 350 mh/s 875 mhz 1.1v on core and is around 81c. I don't know why temps seem strange but thats what they are.
1.25V - your cards probably eat about 30% more power. try a 1.1V OC setting, would be much more efficient. your card could probably even pull the same my card does, 950MHz at 1.1V and 424Mhash/s. think about the environment and all the CO2 you're producing. gosh! |
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you guys don't actually get it. why would you want to invest like 50% more power consumption for a mere 30 mhash/s? is this a benchmark? try benchmarking actual mining efficiency.
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I'm tellin' ya. Those cards are nothing but a pain in the neck.
no, man. best resale value after bitcoin dies. and best option to use as a gaming card. You have years of experience applying the wrong way apparently. As was said before, the dot method is the proper way. Keep in mind a gpu is not the same as a cpu.
i've been doing it this way for years, too. never had any problems. i don't really see the difference between cpu cooling and gpu cooling, either. less pressure? Those are some high temps considering fan speeds are at 100%. Have you tried running with the side off the case off and a box fan pointed in?
i don't think it's a dedicated mining rig, so i'd rather try to get some airflow going inside the case. probably not enough fans blowing in (i've had my case fans running depending on cpu temperature before i've started mining. basically they were not blowing any air at all, which resulted in about 15K higher temperatures). i can't stress enough that going for LIQUID COOLING is the proper way for gamers who casually mine with their rigs (or anyone who has their rigs in their room). sitting/sleeping next to a 1000dB machine won't exactly increase your standard of living. the 10 bucks a day you make off mining won't make up for that. |
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idk :< let's say your PV has 3kWp. at ~10% efficiency that's 0.3kW. you'll get ~750 / year from government and you won't be able to use your PV for your own use at all. (if you had decided this back in 2004 you would get ~1500 / year). if you decide to use the electricity generated by your PV yourself, you'd get ~16 cents per kWh, so ~410 / year + ~2600kWh for free.
they will stop paying you after 20 years. so if you install your 3kWp PV now, you'll have earned 15,000. 3kWp costs about 11,000. that's less than 2% profit per year which is less than our inflation rate. if you use the electricity yourself, you'll get 8,200 and 52,000kWh. that's a pretty good deal (0.22/kWh).
after the 20 years you will still have your 0.3kW PV, although i highly doubt it'll last much longer by then.
downsides: you have to pay for maintenance, which is probably not too cheap.
well, it's like mining bitcoins. you should have started your photovoltaic yesterday.
I'm confused, you get paid to use your own electricity? yes - if you decide to buy/install PV in germany, but only for the first 20 years of operation. they encourage us to use renewable energy. of course they won't pay for electricity which you get from your local supplier, only the energy you produce with your PV. edit: the thing is.. it's not too profitable, because your PV is expected to meet death not long after 20 years. if not, it's going to be at least a lot less efficient by then. |
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Now here's the million dollar question: Has that change decreased linearly, or exponentially? No seriously, I'm not trying to be a smart ass, does anyone know? Who's up for creating some XLS ?
there's a million dollar reward on many many mathematical problems, but i doubt there's one on this one. http://bitcoin.sipa.be/. obviously it's exponential, but as someone on this forum has said "every exponential is a logistic in disguise" which seems to be pretty true. hasn't been going exponential in the past 2 weeks. |
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What I find interesting is that there are so many variables at work here that determine profits (power costs, difficulty, current BitCoin value). Obviously there must still be some, even after power costs, for those who already have the equipment, or continue buying it cuz they've wanted state-of-the-art equipment on their system since WAY before the BitCoin existed (e.g. gamers). I happen to be one of those people who wants a great video card in my system so I have a good system, mining BitCoins is just a current, temporary bonus. But one thing I've noticed: a lot of posts made in May stated how mining was profitable then, but won't be as difficulty increases. But back then, a BitCoin was only worth 4 and a half bucks! Obviously the price is volatile, unpredictable, and has some inherent risk, but what investment in life isn't?
People on the internet like to bitch and moan about all kinds of things. I'm sure that back in May life was different and thus required different amounts of bitching than the current state of available things of which to bitch about now. Life's a bitch, just mine coins and enjoy it. If it ends up being profitable, great! If not, you tried. My word of advice, with my $5K invested in BTC mining, is that there are too many variables to do very accurate projections. You either go for it or don't. BTC is a gamble. It's better than going to a casino though  well.. $4.50 at 200k difficulty (average in may) and $14 at 1.6m difficulty. that's 155% more profitable than it is today (before electricity cost, so effective profit was even higher). edit: At stock clocks, the difference will be around 140w. If unlock the shaders and overclock, probably 200w or more.
If its only for mining, don't overclock your cpu, or replace your I7 with an I3. You can also lower the memory clocks of your video card, it will lower the temps and power consumption a little bit. 250MHz seems the lowest I can set for DDR2 and DDR3 cards without affecting hashing performance, and 300-400 for GDDR5. Lowering mem clock can also help to stabilize your card at higher core clocks.
I need help underclocking my i7 in bios on mobo Asus P6T SE to reduce CPU power use while giving GPU more of the available power needed for mining.Also how to underclock 6GB RAM or wotever it is to reduce power use of these parts to make more power available for GPU mining. If some1 knows how,then please either put it in this thrad if possible or if not link to it in ur reply. Thanx n4l3hp 4 the advice on hte GPU power use. P.S does someone know of a good cost effective SSD at 80GB and 120GB capacities thanx?.It needs to be long lasting,reliable,cost effective,fast and low power consumption. alright, first of all, you don't use an i7 as a dedicated miner. it's way too expensive. secondly, your post sounds as if your PSU doesn't have enough power to support your graphics cards if the other components use up too much power. that's not the best case here, you don't want to run a PSU at its maximum capacity. lastly a ssd doesn't consume much power, you can go with any type/brand. even a hdd doesn't consume very much when idle. solution: get a dedicated rig, low power (+consumption) cpu, a usb stick with linuxcoin, a few cards, and a decently sized PSU (of course you need a board and ram, too. but there's not much you can do about its power consumption). ps: your nick and your language.. wow |
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idk :< let's say your PV has 3kWp. at ~10% efficiency that's 0.3kW. you'll get ~750 / year from government and you won't be able to use your PV for your own use at all. (if you had decided this back in 2004 you would get ~1500 / year). if you decide to use the electricity generated by your PV yourself, you'd get ~16 cents per kWh, so ~410 / year + ~2600kWh for free.
they will stop paying you after 20 years. so if you install your 3kWp PV now, you'll have earned 15,000. 3kWp costs about 11,000. that's less than 2% profit per year which is less than our inflation rate. if you use the electricity yourself, you'll get 8,200 and 52,000kWh. that's a pretty good deal (0.22/kWh).
after the 20 years you will still have your 0.3kW PV, although i highly doubt it'll last much longer by then.
downsides: you have to pay for maintenance, which is probably not too cheap.
well, it's like mining bitcoins. you should have started your photovoltaic yesterday.
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HD5870x2, 844, 15 ($225), $0.00 thanks to solar panels  even at night. NOOOOOOOOO!  You solar panel people are going to drive the rest of us out of business. Those things are not cheap. They cost multiples of $10,000 to install, even for a modest system. So it's not "lucky you -- you get $50 in free bitcoins every month" but rather "lucky you, you could afford a $25,000 solar panel system". What I'm saying is -- the free bitcoins is the LEAST of that person's good fortune. Just like those who got into BTC mining in January 2011 (or earlier!) are better off, likewise those who got into the game of LIFE earlier have an advantage. Every year, inflation eats everyone alive. Those who got "established" in the early 80's, for example, will have paid less for everything, even relative to their lower wages at the time. Everything's more expensive, and "harder" now, since our dollar has lost more of its value than it had lost in, say, 1985. Those people got to buy their houses when real estate was much cheaper, for example. Plus the longer you've been working the more disposable income you tend to have, all things being equal. That is, comparing the same kind of person at 20 vs. 50 years old. Not True take a look to Germany there is Solar and Wind Power Booming since 3-4 Years (long before Fukushima) You just simply Rent your South Side of yout Roof to a Firm who sells the Power so you dont even need to Worry if something gets broken. We get through the the Rent for the Roof around that Money what our yearly electricy bill costs... How much does the German government subsidize that program? i'm not sure if that's exactly what you mean, but it started 2004 where you got 57.4 cents per kWh (at less than 30kW). it slowly declined until 2011 where it's 28.74 cents. gonna go down a lot in the future. overview (english) : http://en.wikipedia.org/wiki/German_Renewable_Energy_Actin-depth with tables (german): http://de.wikipedia.org/wiki/Erneuerbare-Energien-Gesetz |
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What's the relationship between the input and the output? Isn't there some kind of determination of a certain output given by a certain input? Will a given input always produce the same output? My apologies, I don't quite get it.
this isn't elementary algebra hmmm... i'm not quite sure about that. our maths prof always goes like "as you've known since grade 9 ..." when talking about some shit you never heard before. for people like him it probably is elementary algebra. |
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so americans don't even know how to calculate their electricity costs? Unless you're living next to the Hoover Dam, or on some kind of government-subsidized Indian Reservation, your cost should be somewhere between 6 and 25 cents per kWh. not everyone living on this planet lives in america. in germany you pay 22 eurocents or $0.31 |
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http://hardforum.com/showthread.php?t=1622219 was posted today, by the look of the replies quite a few people there didn't know about bitcoins before. If any forum has the hardware to make an increase like that it would be them. now that's the last thing bitcoin needs. even more geeks. first page, last post.. some idiot posting about 500Mhash/s on a 5870. and his 6970 apparently gets 460+Mhash/s at 950MHz. |
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Are you mining on a pool with long polling? If not, then that explains things. Phoenix doesn't have an askrate by default, so without long polling slow miners end up wasting a ton of time on stale work. The fix is to alter the command line to use an askrate. example: -u http://name:password@pool.com:8332/;askrate=10This would set an askrate of 10 seconds. I'm not sure how to do this in GUIminer though. i thought askrate is the work queue size (-q). this probably wouldn't help his stales. i'd get a different card anyway, 4670 is way too inefficient. i don't think new optimized miners support the hd4xxx series anyway. if your old guiminer worked fine, use that instead. your tweaking a few hashes out of your card won't make it efficient. |
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To Clarifiy, I have 3 BRAND NEW HD6990 video cards for sale. New means that the box has never been opened, and they have never been inserted into a mother board. I ALSO have about 5 used HD6990 cards. They have been in use mining for about 2 months now. They are in fine condition without any problems, and we still have just about all the original boxes/manuals accessories etc. To clarify, I want to be paid in Bitcoins. I am NOT interested in cash, credit cards or bank wire transfers. Please contact me at roge@memorydealers.com if you are interested. i wish i had the money for your cards. so you're buying the cards without paying VAT (so ~10% off) and you sell them for ~150% without paying any taxes for your income (you want btc instead of $). nice. at least go pay your taxes imo. |
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with your 2500Mhash/s, you should be doing about 2100 shares per hour, or at 1.3kW 1625 shares per kWh. that's 4.16 or $5.85. still not too great. 19kWh per btc is probably not the most efficient mining setup. did you increase the voltage on your 5830s? if yes, that's probably not efficient (in my case it's not), undo it. go with whatever clocks your stock voltage allows.
I think you did a little too much theorycrafting. If you mine at a pool, just check how much BTC you produced over the last 24h. Those are the real numbers, including pool downtime etc. deepbit shows that directly at the account page. If you calculate with requirered shares, that does not include difficulty increases. I was just going by the lastest numbers deepbit provides, which varies between 1.3 and 1.5 BTC/day. The MH/s rate deepbit shows me (actual number for a solved block) varies between 2100 and 2300 since overclocking is not quite complete yet. Btw I did not change anything on the voltages. Shares look different though, I took some of the numbers from deepbit and divided it with the time it took to solve the block, result is 32-33 shares per minute, which is 1900-2000 shares per hour. You left out all other parts of your system except gpus so you can't really compare to my rigs. CPUs are 50W each, HDDs 15W each, Mainboard itself 10W each, RAM 2x15W each = 105W per rig. I've disable all I could like second lan, sound, firewire etc. and I don't know what else I could do, besides probably underclocking/volting the CPU which I will do soon. of course i didn't include difficulty increases. i didn't include variance, either. on btcmine i get about 0.5% stales and have had 0 downtime for the past few weeks. i can't include difficulty increases because i don't know where the network is going - it can go anywhere: http://bitcoin.sipa.be/growth-10k.pngif i included variance, i'd have to draw a gaussian curve. i don't think the op wanted to know at which % we pay which amount of $ but instead the expectation value. i have included the 0.5% stale rate. somewhere around this forums there is a post which says 1 share per minute requires 71 Mhash/s. that's a fixed value as a share is a solved block with difficulty = 1. maybe this explains something (i don't quite understand some of your post). it's much easier to calculate with that, because the chance to find a block is always 1 share divided by difficulty. |
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AMD/ATI Radeon HD6950 Cayman 1.408 2,6 Mrd. 195 Watt 800 MHz 880 MHz 920 MHz 280 MHash/s 380 MHash/s 6950 unlocked shaders 950/310 MHz @ 1.1V, ~170W, 425 Mhash/s  |
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i don't know why, but i lose 2Mhash/s going from 07-07 -> 07-11
You can always return to the previous version, what's your setup? Dia i've added vince's mod now and am running better than 07-07. 6950 with unlocked shaders, running at 425 Mhash/s at 1.1V now. if i think back to when i had 380 at higher power consumption.. all these tweaks are sure worth it. keep 'em coming |
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