As long as you encrypt and back up your wallet immediately, there is no danger. You can throw your laptop into the ocean and still recover your bitcoins as long as you have your backup and encryption password. It seems odd, but you should encrypt, then back up, and then you can safely send bitcoins to your wallet.
no i dont have a lot bitcoin yet. the only wallet i have is from blockchain. will install bitcoin core this evening. installing bitcoin core will mean i also have a wallet.dat file along with it? Yeah but i'd recommend getting something like Multibit HD, that one let you point to a DropBox folder so it save encrypted copy of your wallets to your cloud storage automatically. So if your computer dies, you can still easily restore your wallets. I would not really recommend to have Bitcoin Core your spending wallet. |
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Is it possible and worth the effort? If i turned my laptop into a miner only, would I be able to generate enough BTC to do anything with?
Not a good idea. This will force your laptop to work harder and will shorten the laptops life span. Laptops are not designed to this kind of work and stress. And that's not mentioning that, beside possibly damaging your laptop, you would probably do so before you break the dust limit payout on any pool. That laptop would be better off running a USB Stick like the GekkoScience usb stick and run the lottery with it. Laptop do fine as controllers. |
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About tree fitty.
Actually, I'd say ~200 would be good.
If we assume the price in 20 years increases by 250% then you should be fine for a while.
It's all about if bitcoin will be still usable and popular in 20 years from now. With 200 BTC you can make good money in future But i don't think that you can retire with this amount maybe 500 BTC+ at least. That's insane. With 500 BTC you will be a massive whale. 20 years is a long, long, long time for technology. Hell 5 is. The supply is limited, 500 BTC is a lot in a 21 million (-all the bitcoin that got lost) if the demand keeps growing. Anything around 30 BTC should make you very wealthy in the next decade. Just do the math. Only by having 1 BTC you are already a part of a very small % of the population. Once demand kicks in the price will go to mars.. simple supply and demand. That is true, but BTC is still bound by the line of reality. 1 BTC could be worth a nice amount, but its nothing near enough to retire. A few hundreds of them however, would be pretty nice if the price goes to 1k+ and you keep rolling it over at small profit. |
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Thanks for the feedback everyone! I want to get me something small they will make w little money and does not run hot and loud. Something I can run in my room or a extra room any ideas?
i think you should simply try to change the fan, after all the noise come from there, when this is done you can use any miner you want i would go with the new s7(lite version) which is very efficient, and smaller than the big s7 The only thing is I predict it to run loud. Even if they do have a lite coming out and go to 2 blades . I don't see it being quiet. And now the warranty is so tough if you mod fan's on bitmain gear you lose warranty. So I'm not sure I would go with a new miner if he will be modding chances are. just a high dollar item to lose warranty on. Just keep the fans, there is no way they would know and they won't security sticker the hell out of it due to big warehouses needing to replace fans all the time. The thing is if they catch you on a miner that has warranty and you removed any security sticker, or changed out fan. They have tightened warranty up A LOT. You have to ask bitmain to do pretty much anything at this point. I would not trade out fan's till 90 day's warranty is over. It's just not worth it. Does the S7 come with the S5's Fan control? If it has it, the step up to a S7 might be doable. Of course it won't be in OP's 200$ Budget but beside a half S5 modded i don't see what would be quiet AND efficient. If it possible to run the S7 Lite cool and quiet during the winter, i might make the jump up from buying and recommending used S5's. |
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 what a shame you aren't closer for local pickup. After you add in shipping to Canada or the East Coast these miners could become pretty expensive. Agreed However I have found that sometimes carriers give deep discounts under certain circumstances, as for example the price to ship via eBay/Fedex is a lot cheaper than the same item going to fedex.com. So if there was a single buyer, I do have a lot of larger boxes saved up that could be used to ship multiple miners and reduce costs. That and I had planned on signing up for a free 30 day trial of shipstation.com which I believe would let me tap into those discounts also, but as always YMMV with shipping costs! Well if you're able to ship to east coast Canada for cheap, maybe Allinvain would take it all. Personally i'd take maybe a S5 or such but i can't eat it all, however i'm always looking out for good deals so at least you know i'm around if you somehow get to a point where you dump your hardware around here. Hey, can you let me know if you still want 1 S5 and want to get in on this as a group buy. If not I'll just take them all myself. If the price to get a S5 to my door is good, then sure, i could probably afford to pay for it by the weekend. |
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i always expect my computer to crash and by what i mean crash is simply my harddrive malfunctions and might no work any more as currently it produces noise.
So you're asking what happen to your wallet if your hard drive dies? You lose it. So you must backup your Wallet.dat in %appdata%. |
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I'm currently using web wallet but would try to install Bitcoin Core: 0.11.1 this time as for security.
My question is if the computer crash, will i ever retrieve my wallet that if I install Bitcoin Core: 0.11.1 once again on my laptop, i could simply just login?
This is very confusing i'm not sure what you expecting to happen or not happen. If your computer crash you will restart your computer, then launch the wallet and continue as normal. There's no login in or anything, tho you can and should set a encryption password. There won't be a username however. |
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Yes group buy! But, should probably wait for an official announcement from Avalon? Hmmmm, probably over 5BTC per after shipping and customs. Yeah i think i'll pass o.O... I'm not sure whats the math here. Close to the S7 price, yet lower GHs by quite a bit and worse efficiency too? |
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what a shame you aren't closer for local pickup. After you add in shipping to Canada or the East Coast these miners could become pretty expensive. Agreed However I have found that sometimes carriers give deep discounts under certain circumstances, as for example the price to ship via eBay/Fedex is a lot cheaper than the same item going to fedex.com. So if there was a single buyer, I do have a lot of larger boxes saved up that could be used to ship multiple miners and reduce costs. That and I had planned on signing up for a free 30 day trial of shipstation.com which I believe would let me tap into those discounts also, but as always YMMV with shipping costs! Well if you're able to ship to east coast Canada for cheap, maybe Allinvain would take it all. Personally i'd take maybe a S5 or such but i can't eat it all, however i'm always looking out for good deals so at least you know i'm around if you somehow get to a point where you dump your hardware around here. |
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I confirm what sherona said, no need to post 14 posts to get 14 activities/period once you have a number of posts above your potential activity.
I was 70 then went to 84 with 1 post after ~1 hour
You only need to post once per 14 days updated. Not sure when the week update or if its the same for everyone. In the same sense if you post once every 2 week for a year, you'll have 365~ potential activity even though you would only have 54 posts. if you post only once every period, It is a great possibility of lose activity point, if for some reason your post are deleted. Well what case would the post be deleted if it's a constructive post tho? I think it's ok to post once every activity update if you are farming your account to get activities and not really active in the forum. Well if you get deleted you get a message that tells you, so you typically get the e-mail unless you disable notifications. Kinda hard to miss. You can post once a week if you tend to post the wrong 1 word at the wrong place. |
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Delta fans are crap?
You have a very interesting definition of "crap".
I think he probably doesn't like them due to noise, they push a lot of air but they aren't Noctuas and could definitely be a lot better, especially when paying for an expensive device (like an antminer S7). Delta fans are noisy? Well, the high end ones certainly aren't quiet, though none of the 120mm models I've seen on miners can compare to the old 80mm 80CFM screamer - thank goodness! There are VERY few companies that make fans that can push anywhere near as much air as the higher-end Deltas though, and they ALL are comparable on noise level - like the YSTech that the SP20 used, it only seemed quieter due to a better mount and default lower % setting than the comparable Delta models. I used to prefer Rotron over Delta, but Rotron got cheap over the last 20 years - their metal-frame ball bearing fans were bloody near unbreakable, and I've still GOT some that are 20+ years old in working gear with 150k+ hours on some of them. What i was wondering about is why there were no hydrofluid fan with high RPM. Its nice they can get 80 CFM with under 20dB, so i'm not sure why they could not design some with double the RPM (3k+). Not sure if its a design limit or what. |
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I don't know if this worked only with S5 because they were mostly open heatsink, but if you put your miners vertically, a user had a boxfan blowing air upward from beneath, did a big difference. Even horizontally, i have a box fan blowing air with the air flow and it does a huge difference.
Would be interesting to see if it work with S7, if it does not, then that mean the positive air pressure doesn't really help the internal air flow that much.
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I confirm what sherona said, no need to post 14 posts to get 14 activities/period once you have a number of posts above your potential activity.
I was 70 then went to 84 with 1 post after ~1 hour
You only need to post once per 14 days updated. Not sure when the week update or if its the same for everyone. In the same sense if you post once every 2 week for a year, you'll have 365~ potential activity even though you would only have 54 posts. |
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initramfs.bin.SD-20141016.tar.gz is the last firmware that supports adjusting voltage. Everything after that is sabotaged by bitmain.
None of smit1237's available firmwares have voltage control, as they are based on initramfs.bin.SD-20150129.tar.gz.
A good S4 will run 225MHz at 0710-0720, average S4 will need 0725, bad S4 will need 0730 to be stable at 225MHz. The lower the better, of course. Proceed at your own risk if using the stock S4 PSU.
With the stock PSU, i'm doing 0717 @ 2.05~TH/s, its not glorious but it does put the at the wall draw at under 1400watts, not sure how much i should push it, even though it should be able to feed 1440Watts so 1600Watts at the wall. I'm not sure i trust it. Its not the stock PSU but its a replacement of the same, so... You could probably get away with 0720 212 or 218 MHz, but that would be the absolute limit. I've run them at 225mhz and had PSUs die. I tried 0725 212~ and chips would drop and hashrate would be lower than 0717 206. So i'm not really sure i should try to push him any higher with these disappointing PSU, seeing how much resistance its putting against raising the hashrate over 2.05TH/s. Are you sure the voltage was applied? 0725 is way more than enough for 212. Yeah, eventually chips drop and then consumption drop to like 1300watts, its pretty weird. It might of been 0720 that i tried since i'm guessing 0725 212 would put it over 1440watts at the wall. But i'm already having trouble with 206hz, only getting 2050GH/s~ so, i'm not sure i want to try pushing it up. Especially since its on a 120v 15A breaker so 1440 is 80% of 15A. |
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Hi, so I'm just curious as to how often are blocks "mined" is it like after a certain amount of transaction, or time, or just whenever a miner finds the solution? And each block thats mined the miner, or pool, get 25 bitcoins + transaction fees? Lastly, what is this halving that people are talking about?
I'll answer your question more directly. Difficulty is set compared to the network hashrate to target an average of 10 minutes. You can get a few blocks in a few seconds or none for an hour. That's what the difficulty is all about. There is no "progress" toward a block, either you found one or you did not and you draw the lottery x time per second and that is your hashrate. |
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Sure, but renting can be a zero sum game. Nicehash.com is a popular option.
Hum.. ok thanks. I'm guessing by rent you mean cloud hosting? Its kind of marginal profit at best, unless BTC goes way up, but you can check out HashNest; https://www.hashnest.com/Its Bitmain's so it one of the very few service i would trust. |
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If you want quiet look at Avalon 4.1 for example it comes quiet, no mods needed. I wish you would have asked on the S5 before buying, and also before selling.
The S5 run's hot and loud. That is just how it was made. There are some who modded it. I think most likely is you modding with much quieter fan's can do push/pull even. But you sold it... so would be a shame to buy another S5.
There are rumors of a new S7 that no one knows much about... so if you wait it is possible it's smaller but no one knows for sure. But chances are it will still be loud, even changing fan's out voids warranty though.
Great information! Can you tell me a little more about the Avalon 4.1? How much is it? Looks pretty cool! https://ehash.com/product/avalon4-module-1t/Its very hard to get, i had a buying thread opened for months saying i'm interested in buying one and i never had anyone PM me about it, ever. Its more expensive than the S5, its a rare unit, not many were built and the price did not really drop. In term of value i'd put it around 1BTC shipped in term of ROI, a bit more expensive than a S5 but its actual sale value is definitively higher, probably close to 400USD or 1.5BTC~ Alavon 4.1 Will be valued at closer to the 400. The were expensive when they came out and the value has came with stayed with them. They are the most quiet stock miner there is. S5 is cheaper but runs hot and loud without mod. I wish you would have asked on here before selling it. As there were some good options left to try. Yeah 2 Antminer S3+ , they are 453gh/s each so 2 would give you around 900gh/s and cost you probably 200$ while being quite while stock.
On S3 or S3+ I would avoid at 10 cents currently. Unless he gets just a huge bargin. The S3's just are not near as efficient as they once was. Cheap and "free" electricity are market for S3's currently. There are two on the marketplace right now for 75$ a pop, definitely in his price range and could have a possible resale on them locally and use them as heaters during this very soon winter covering most of the power cost until spring. The reason they are so cheap is the power it uses. Even at 10 cent's I get at current difficulty they are going to lose money even at 75 dollars each. I personally don't believe in losing money and running as a heater. I run ones that I bring over cost of electricity. But I know there are some that do. I just think makes more sense to get free hit and one you are not losing money to run. So at 10 cents yes you could use as space heater, but you lose money and price is just going to continue to dip. I would have him go for S5 (which sucks he sold) or better as far him running during winter even. Definitely an S5 would be better, he would need to fan mod it but I was taking into account the 200$ price limit he was wanting to spend, there is no way to get a fully working S5 for that. I did get one for 200$ but i guess i would call it a Fluke, especially with the BTC price going up. But i did get half a S5 for 120$ or so and then a second blade for 100$, which result in a S5 for 220$. I guess half a S5 would be the best for op. 600~650GHs for 300~ Watts. |
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Cgminer is rejecting me every diff. what to do .
I says me low difficulty share of 1.4 sometimes 5.4 sometimes and so on
Please Help me
You're probably mining the wrong algorithm. What are you using the mine and what are you targeting (pool) what algorithm are you setting it to mine? yeah please check this https://bitcointalk.org/index.php?topic=1222047.msg12799734#msg12799734Please if you have any solution for this please reply it on thread. i have fighting with cgminer for this from 2days  Not sure why you created two threads for the same problem. I posted this there; You're mining the wrong algorithm your need to specify x11. Its hard to give you more information because you did not give the information i asked on the other thread + you cropped the screenshot hiding the important information and you also did not link your config file. You should probably start by getting SGMiner with any version 5+. The problem is most likely that you did not tell cgminer what algorithm to mine so its using default which is probably sha256 or scrypt, can't tell since youre hidding the important information. |
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please help me with this am mining with this command cgminer -o <pool url> -u <username> -p <password> -I <value> coin that i am mining : kryptonite difficulty: 0.04521150 algo : x11  and it is rejecting every block i am finding You're mining the wrong algorithm, you will need to specify x11. Its hard to give you more information because you did not give the information i asked on the other thread + you cropped the screenshot hiding the important information and you also did not link your config file. |
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initramfs.bin.SD-20141016.tar.gz is the last firmware that supports adjusting voltage. Everything after that is sabotaged by bitmain.
None of smit1237's available firmwares have voltage control, as they are based on initramfs.bin.SD-20150129.tar.gz.
A good S4 will run 225MHz at 0710-0720, average S4 will need 0725, bad S4 will need 0730 to be stable at 225MHz. The lower the better, of course. Proceed at your own risk if using the stock S4 PSU.
With the stock PSU, i'm doing 0717 @ 2.05~TH/s, its not glorious but it does put the at the wall draw at under 1400watts, not sure how much i should push it, even though it should be able to feed 1440Watts so 1600Watts at the wall. I'm not sure i trust it. Its not the stock PSU but its a replacement of the same, so... You could probably get away with 0720 212 or 218 MHz, but that would be the absolute limit. I've run them at 225mhz and had PSUs die. I tried 0725 212~ and chips would drop and hashrate would be lower than 0717 206. So i'm not really sure i should try to push him any higher with these disappointing PSU, seeing how much resistance its putting against raising the hashrate over 2.05TH/s. |
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