I've been studying my local real-state market, and prices have been going lower lately.
I'm currently considering starting a project for a mining farm that will have approximate capacity of 7.5 MW.
Considering my past experiences with mining on my country, adding human resource costs (guards, technicians to setup miners, cleaning personell), electricity and internet costs, i calculate that hosting 1 KW on that mine would cost less than $10/KWh.
I've found a real-state lot on a nice place of the capital city that would fit a building with around 200 individual "shops" (being data-center oriented, there wouldn't be anyone around walking besides building employees) of ~20 sq meters with common air extraction and emergency CO2 extinguishers, with 36KW lots. I could provide all the man power necessary to keep running the place 24/7.
Is there any interest on this kind of endeavors? Would anyone be interested in investing on these kind of real-state on my country?
Also, i'm not interested on taking money atm, just knowing if people would be interested so i can develop the project and get costs down to reality to evaluate feasibility.
Some quick numbers: 36 KW worth of S5 would be ~69TH/s * 200 locations, 13.8 PH/s. Running 13.8 PH/s would cost south of $72k USD (with all non-electricity costs included).
It's a interesting idea I kinda made a hobby version when I upgraded for summer. I think it would be interesting as an idea to build a data center. I see a few things that might be hard. I don't think the price of electricity is cheap enough. I think you would need to move to another place with a decent amount cheaper electricity if you truly want to be a commercial datacenter. Other problem is 200 shops. Your talking you need 200 of everything, this scale is not really reasonable. I mean 200 security systems, cooling systems, networking equipment, etc etc. And employees going in between them would be a waste of time and money. Look into 1 place and cheaper electricity is my advice. |
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So i sent a email bitmain asking a question and they replied And please kindly upgrade the firmware of S4+ and S5 with below link:
S5 firmware:
https://www.bitmaintech.com/files/tmp/SD-S5-20150711.tar.gz
S4+ firmware:
https://www.bitmaintech.com/files/tmp/SD-S4+-20150711.tar.gz
Best Regards
BITMAIN
Anyone knows what's new on this firmware? You might email them and ask. I know the big thing some experienced loss of internet and then the miner would get really hot. It seems to be hit or miss. I have not experienced it, but some have. I would guess this is biggest thing they had to work on to fix what ever caused some machines and not others to do this. If they put it in this ... only know by asking  It is weird but that firmware is not in the normal area. When they release it and put it there it shows changes. So maybe soon they add it to there. |
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Hello Bitcointalk, I recently set my friend up with a Bitcoin wallet after he explained that he wanted to purchase something, and the sellers only accepted Bitcoin. He installed an Electrum wallet and I left the room for a bit while he set it up. I loaned him some Bitcoins, but when he went to send the coins, a problem arose. You see, my friend is dyslexic, and it turns out he typed his password incorrectly... twice. He doesn't know what his password is, and he needs it to send coins. No problem I thought, just use your wallet generation seed to get access to your private key.... he didn't save the words, and needs to enter his password to view them. He also didn't set up 2FA.
To summarize, he doesn't know his password, and did not take any necessary backup measures. Is there any way he can get access to his coins back?
Sadly it is likely it is gone forever. He not saving seed is a huge mistake it warns on it I believe to save it safely. And to forget password it is hard to explain how hard it is to brute force a single wallet. Does he know generally what he typed as password? If he does you might be able to find someone to try to get in it. But you will need to have a good general idea of what password was or it will never happen. So depends on how much he remembers of password. But most likely gone forever. Out of curiosity how much was lost? Not a huge loss, only $15 or so worth of BTC. Luckily, he somewhat knows what the password is - he was trying to type out a password he has used before but supposedly butchered the spelling when inputting the pass. Hopefully he will be able to get by brute force the wallet with minor mispellings of the original password. From the research I have done, it appears that cracking the password is the only way. Honestly I'm happy to hear its only 15 dollars move on. Most likely even if you find someone reliable and trust worthy to do it, its not worth all the electricity, or time with the GPUs. You could try it yourself, and read up as a learning experience. But you will need to depending on length and I doubt he knows what position typo is in so it's a uphill battle. |
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Hello Bitcointalk, I recently set my friend up with a Bitcoin wallet after he explained that he wanted to purchase something, and the sellers only accepted Bitcoin. He installed an Electrum wallet and I left the room for a bit while he set it up. I loaned him some Bitcoins, but when he went to send the coins, a problem arose. You see, my friend is dyslexic, and it turns out he typed his password incorrectly... twice. He doesn't know what his password is, and he needs it to send coins. No problem I thought, just use your wallet generation seed to get access to your private key.... he didn't save the words, and needs to enter his password to view them. He also didn't set up 2FA.
To summarize, he doesn't know his password, and did not take any necessary backup measures. Is there any way he can get access to his coins back?
Sadly it is likely it is gone forever. He not saving seed is a huge mistake it warns on it I believe to save it safely. And to forget password it is hard to explain how hard it is to brute force a single wallet. Does he know generally what he typed as password? If he does you might be able to find someone to try to get in it. But you will need to have a good general idea of what password was or it will never happen. So depends on how much he remembers of password. But most likely gone forever. Out of curiosity how much was lost? |
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They also have not responded to my last two or three inquiries regarding chip availability and/or new-gen chip information. The last email I got from them was 12 days ago with a tracking number.
Relieved to hear you have a miniscule amount of "raw material" to work with, else a lot of your "time, hate, and discontent" would have been for naught. Have been doing some research on the Avalon4 and the sfards. Not really impressed with the sfards as I'm not an alt crypto kinda' guy. Now an Avalon4 remasked and shrunk to 12nm-16nm, hhhhmmmmmm. Really like the ability to tweak bunches of stuff. Understand that's not so much of the hash chip itself but the ecosystem it lives in. IMHO, what this community needs is to find a chip designer and get something designed and manufactured in 12nm to 16nm (isn't that what AM started out to be?) Anyway I promised I'd STFU . . . . With AM doing what it did. Would be intresting to see someone take that chip and make it and see if you can get better results. But I'm sure to get the right's would be a mess with AM and cant really consider them reliable. It's interesting about not responding on chips. I hope Bitmain keeps supporting things like GekkoScience as it really is neat to see a design from a community member and it go all the way to production. And not only that they succeed and make a great product on their usb miner. I am still playing with my review one, and can say they did a great job. |
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Night bitwisdom:
Bitcoin Difficulty: 51,076,366,303
Estimated Next Difficulty: 52,160,798,202 (+2.12%)
Adjust time: After 1391 Blocks, About 9.7 days
Hashrate(?): 374,118,183 GH/s
So it is moving up some. Not a horrible number though.
And price is hovering right under 290 pretty steady most of day around it.
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yeah i got mine second handed aswell it was quite new when i got it the dude who owned it had it as a hobby and was not on every day.
I would recommend repaste if you get a second hand one, i havent done in mine but i should do it soon aswell.
from china you can get them for 250 us i think, but shipping are 100 us, thats whit no Watercooling kit, complete whit kit you get em for 450 i think whit shipping included.
And it's worth mentioning if you get the watercooling pump from the kit the earlier the kit the worse the pump is chances are. They started off with (i think all of batch 1) being dry tested. Just things a cooling company should know not to but syscooling did it. I have had 2 since batch 1. One has worked perfect other recently gave me some trouble. Tried a lot and ended up opening one blade. It looked horrible on paste, just not great at all. I thought it would be here today but looks like tomorrow on gear to clean it up. I ended up getting some decent cleaner, decent thermal paste and good amount keep in mind it's 4 blades, and I already had extra coolant. So tomorrow I might do it if feeling real crazy. Or might wait till weekend. Not sure yet. |
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Still the best sig campaign around! Highly recommend it to others thinking about a sig campaign. Macro looks like the bot address is getting low on BTC might send it a reload when you have time |
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Just saw at the moment that it was sold out on DHGate.com  ! If you were to buy a S5 do not buy from a secondary site unless a bargin. You want the 90 day warranty. Currently they have them on bitmain's site for sell (they temporary said sold out but it now appears to have more stock). Order direct on S5. If older gear then look into secondary markets. Phils comment of "case of pennywise pound foolish. " is pretty correct. If you try to save a few bucks in this game it will come back to bite you most of the time. So it's better to order directly on Bitmain's site ? Do they accept credit card ? I have always used BTC. But they say they offer it through "DHGate store" which currently say's sold out. But their BTC store say's in stock. This could change sometime yesterday they said they were out of stock, then it came back in stock. So hard to say how many they have. Here is link to official bitmain site: https://bitmaintech.com/productDetail.htm?pid=00020150303095018716e2uWKIA70662I've tried to do a checkout and they also offer to pay in USD on Bitmain's site so I think it's ok. But what would be a typical good PSU for the S5 ? I personally have been using ATX PSU's as they are what I have. This is RM1000's, EVGA 1300, and a few others. The new thing though is really to get server PSUs. You will find multiple options on the forums. But now days it seems you can get a good efficiency server psu with breakout board to pci-e cheaper then ATX. It's worth checking out. |
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They will get enough buyers from people who are just desperate for a new toy and don't care. They'll mine LTC with them even if they aren't flying off the shelves. The writing was on the wall, no one was going to like the price right off the bat.
Fine by me. I sold all my ASICs since summer is upon us in the states. Hopefully by fall, LTC price stabilizes and Bitmain releases the S7 to give them competition. It would be perfect timing to stock up on new space heaters before the snow starts falling.
Wouldn't be better to buy in summer when prices are low and supply high and even if less efficient use them for heat come winter time and when summer comes build summer rigs? For other just sha miners possibly. But with this miner it literally has no competition at release as far as dual miners at this level. Also they have the lowest watt scrypt by far. So at first release it will have a premium as there is less of the chips, meaning less of the rigs out there. Over time it will drop most likely on price. But I suspect to see a premium for those who want to be one of first owners. |
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One big reason I believe would be price. Also very easy to put new gear that is nothing special in aircooled data centers. I think it is going to be very very hard to beat a data center that can do evaporation cooling. That is huge being able to do that large scale. Other option is putting ton's of CFM of fan's and exhust it out. I think price is reasons that site does now show a real unit just rendering of what it could do. It's been a long time but there was one that had a immersion based at decent scale I believe, but it was a good while back. Like asicminer blade days. |
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Good seller. He was online during and he sent within minutes of payment.
Good experience.
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Just saw at the moment that it was sold out on DHGate.com ! If you were to buy a S5 do not buy from a secondary site unless a bargin. You want the 90 day warranty. Currently they have them on bitmain's site for sell (they temporary said sold out but it now appears to have more stock). Order direct on S5. If older gear then look into secondary markets. Phils comment of "case of pennywise pound foolish. " is pretty correct. If you try to save a few bucks in this game it will come back to bite you most of the time. So it's better to order directly on Bitmain's site ? Do they accept credit card ? I have always used BTC. But they say they offer it through "DHGate store" which currently say's sold out. But their BTC store say's in stock. This could change sometime yesterday they said they were out of stock, then it came back in stock. So hard to say how many they have. Here is link to official bitmain site: https://bitmaintech.com/productDetail.htm?pid=00020150303095018716e2uWKIA70662 |
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I quit mining since 1 year now.
Better trade.
Depends on so many things. Biggest is electricity price, but cooling, etc. If you are set up right, and have decent electricity you still can profit mining. This summer has been great for miners. Low difficulty changes and BTC price rising. So really miners that were doing ok are doing even better with recent jump in price. |
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^^^^ And that is the plague of signature campaigns striking .... basically nothing to add to (not even negate) what has already been said.
I appolgize if it was worded wrong. I have used many dragon 1t A1's and not experienced the "s2 syndrom". I was negating that setting a 1T dragon to 512 really making much of a difference. I believe the default is 256, and it has no issues at this. So I was meaning to negate your statement of 1T dragons having as you call it "s2 syndrom" Hopefully that clears it up. Pekatete have you owned a Dragon 1T? |
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Bitwisdom difficulty seems to be heading up a tad bit:
Bitcoin Difficulty: 51,076,366,303
Estimated Next Difficulty: 52,078,732,319 (+1.96%)
Adjust time: After 1437 Blocks, About 10.0 days
Hashrate(?): 372,113,633 GH/s
Price still around 289 so not bad on price.
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Anyone can advice in replacing psu? Maybye my is causing errors.
Get a decent PSU. The A1 psu was ok but eventually seemed to crap out. Some still are working though. I would get 1100 watt or so to make sure it works good with it. But I would also do ROI math as I don't know if a A1 is worth a new 1100 watt psu in most cases. What type of errors are you having? |
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Just saw at the moment that it was sold out on DHGate.com ! If you were to buy a S5 do not buy from a secondary site unless a bargin. You want the 90 day warranty. Currently they have them on bitmain's site for sell (they temporary said sold out but it now appears to have more stock). Order direct on S5. If older gear then look into secondary markets. Phils comment of "case of pennywise pound foolish. " is pretty correct. If you try to save a few bucks in this game it will come back to bite you most of the time. |
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thx for the reply all off you, s2 syndrome what is that
If the diff is set low, then the software on the rig may get into a loop (for lack of a better word) trying to submit so many shares in a very short space of time that it crashes the rig before the pool has a chance of adjusting share diff. I personally always set my rigs' diffs higher than their rated speed (as I know the pools I mine on will lower / set it appropriately after a while). I have used the dragon 1T and 1.5T. Really 256-512 it does not make much of a difference. Once you connect to a decent pool it automatically adjusts the difficulty. The dragons are pretty much set and forget if using a good pool. They seem to have a very long lifespan (minus the PSU's used in them). |
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Miner is quite silent, even whit 6 fanst. The big one can be noisy if your ambient is warm. I have mine in a closed enviroment at 40c temp on the ambient, the fan runs at 2600rpm and it's noisy but still not so high. I am running mine now at 60c each board whit a non stock fan at 1200rpm, sounds nothing and clocked to 1.1k ghz. i am using normal water, and i had some leakage but just from the outside of the machine, maybe 2-4 drops had not happen again aslong the machine is not tilted for the water to drip in from the plates. in 2 months the pump stopped once i have no idea why, it's running now whit no problem but im looking for better radiator and better pump wich many have recommended aswell. i have a spondoolies -tech sp20 and at lowest fan speed i can tell you that c1 is a pleasure in the home enviroment you wont hear it, i still wanting the winter to test those overclock speeds at 2thz on it . any place you would recommend buying one from ? Either here on forums or ebay most likely. They are discontinued as far as production, so you will not find new miners of these. You have to look into used miners. Make sure you get one with out issues at this point they have been ran for a while. I'm hoping this weekend I finnaly get time to put new thermal paste on one of my C1's. |
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