is thier any new pools I am suppose to switch to and get payments faster? cause all of a sudden my S3+ now takes 5 or 6 days to get 0.01 BTC instead of 2 days like before
was thier a big spike in bitcoin difficulty or am I just on a bad pool now? I'm using bitcoin.cz
Diff has gone up and S3 is not very effective. If you don't have very cheap electricity it's not profitable anymore. Changing pool won't help this. Yea I was afraid of this  I can't afford a 1TH miner, and my S3 only makes $25 a month now That is the nature of the game. As gear get's older the less it makes from efficiency. I am a little surprised to hear you make 25 a month off a single S3. What is your electricity price? the s3 is pretty much done.. at todays diff and btc price they make 23$ @ 100% luck.. at 10c a kwh they cost 25$ to run.. altho you can undervolt them.. to add some life.. i have 3 running, but kano's luck is keeping them alive.. but just barely and im using mine to heat the back room to keep the mildew out.. so there is that. That was what I was thinking that he must be "free" or near "free" to make 25 still. I found that impressive it does it a month for anyone considering age and price they sell for. They were built like tanks though. So I expect we will see them around for quite a while yet just has to be very very cheap electricity. with some undervolting you can almost get s5 efficiency. They really are good miners. Just looked at ebay and still around 100 dollars which is amazing they have still held a decent value considering how long they have mined. Only advice I have if anyone is getting one if S3 and not S3+ make sure to get speed of miner. Some of batch 1's did not get as spec and they gave a small portion back. Getting a S3+ avoids this, and if not + model just ask seller of screenshot of mining with a decent amount of time on it. |
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Philipma above may be right however bitmain's recent S7 batches (8, 9 and upcoming) are crap, they're overclocking already from the factory, out of the box. These new batches won't last 6 months. Which is just as good since halving will happen in early July this year. After rewards halve, these miners will become almost worthless. By then Bitmain will have come out with a new model that's twice as energy efficient but will cost you three times as much. We must be stupid to play their game cause we losers and China factory owners only winners. I'm beginning to suspect Satoshi must be Chinese.
What proof of this do you have? They do have less chips which stinks on efficiency. But from what I have seen B8 has been a solid miner. I got one to see what it was like and it's not been up for around 30 day's without touching it. So get around 4.7T and don't have to babysit... not a horrible miner in my book. And at having they will not be worthless they will be sold to people with less electricity prices... and yes they will get a good compared to new chances are. But that is how mining works. Look at 2 models back on bitmain on S3s' they still are bought and have a value look at Ebay they bring 100+ . Which is amazing considering how long they have been mining. But as of yet your after having S7's being worthless.. I don't see it. Do you own a S7? |
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A wise man once said, "When bitcoin price is high, buy miners; when bitcoin price is low, buy bitcoin."
I think the price is low currently, so buying bitcoin should be the rule of thumb. How do you know when bitcoin price is high or low? If bitcoin price around $600, it's high, time to buy miners, below $600 is time to buy bitcoins.
I don,t know about that. Sell ASIC's when bitcoin is soaring, because everyone go in a buying frenzy. Buy Miners when Bitcoin is low.  Same thing with BTC for buying, i guess. I'd rather just have more miners however. You know nothing, VirosaGITS! "Sell bitcoins when bitcoin is soaring, because everyone goes in a buying frenzy. Buy bitcoins when bitcoin is low. Buy miners when bitcoin is high, I guess" There I fixed it for you! Naw people buy Miners at crazy high prices when the BTC price because they think the price will continue raising non stop or something. You could sell a S5 for 500$ last time. I have to give VirosaGITS credit, he is actually out there buying miners and mining with them. He is a miner I could be seen as siding with him as I to enjoy mining. If you buy a miner when BTC is "low" and it rises you can make money off of sell as long as price did not go down and difficulty is not surging. We saw this with machines when we were getting "low" bumps on difficulty for the longest time if BTC rised you could sell a miner for higher. With difficulty jumping so much right now and btc not jumping it's hard to show this. But it has happened in past. On your BTC being "cheap" under 600 I don't think that is really true. If market believed that we would be much closer to 600 then 400. We hope it rises, but were not there right now. Cheap was when we hit 350 or so not to long ago.... that was quick profit for some. |
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I want advice how one can trade safely with someone so both parties will fulfill their part? Examples of trades are
If person A wanted to buy person B's member account for 0.05BTC
If person A wanted to trade 1BTC for an equivalent amount in litecoin from person B
if person A sent his BTC payment to person B in either scenario how can we prevent B from not fulfilling its part. Ideally their should be a way for both involved in the agreements to do their parts at the same time.
I think some are missing what OP is talking about buying in first statement. He is talking about buying an account... I always suggest avoid doing this. Even with escrow account could be stolen and a staked address get's it back to rightful owner. I see buying/selling account market as shady. Even if you get the account... escrow can't prevent it's not stolen in all cases or that seller wont try to get it back. So as I always suggest raise your own account stay away from account buying Second situation is easier use a good well known exchange. Changing LTC for BTC with exchange no escrow needed if one of the big sites. If was huge amount I would do it in portions as I am always worrying. |
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iii. Which rate Purse.io uses for BTC to FIAT coversion? Coinbase rate or their own rate?
The rate is essentially determined by the bitcoin seller. It is what determines the discount. Bitcoin seller determined the rate! How come? Bitcoin seller is the Amazon buyer in this case. And if it is bitcoin buyer you mean, then wont he intentionally offer a low rate, which will eat the discount advantage? I thought, purse.io uses some standardized rate, e.g. CoinBase/Bitstamp etc. The person selling the Bitcoin (meaning buying goods from amazon) sets the rate that he wants to sell his Bitcoin at. Purse.io sets a minimum that he can set that rate to and that minimum is usually that market rate. By setting the selling price higher, he is giving himself a discount on the goods. The buyer cannot do anything about it. He can only choose who to buy Bitcoin from and choose a person selling at a lower rate. The Bitcoin seller is incentivised to not set a super high discount (high bitcoin price) for himself because then no one will take his offer and he won't get what he wants. Intersting I had not heard of this. I always love learning something new. My big question is there any possibility of getting mixed up with carding or any other bad things with this? I just am having trouble seeing why someone would buy a amazon order for 20 percent higher then what bitcoin is worth. So makes me worried they are using carded account to buy and ship to you or other not so good means. |
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I guess it is not something related to software but a short circuit.
One of the legs of IO board van be problematic.Can you just check and give feed back?
How are you able to get to the conclusion it is a short circuit? I think we need a lot more info to tell much of anything. I got a new board and it does not work... I get very little info that is useful in trying to find problem. |
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Hello...
On bitmain's post about his miner, they specify that the PSU need must have 12 V and 6A.
My question is:
Can i use it with a PSU that gives 4.5 A and 12 V?
THanks
maybe. but not at full speed. or not at all I do not know what type of psu you refer to. lets go slow. the amp number 6 refers to 120 ac volt input so 6 x 120 = 720 watts ac which in turn converts to about 55 amps dc 12 volts now 55 x 12 = 660watts dc available. Since an s-3 maxes at 450 watts maybe this why they use those numbers. since 450 is way less then 660 you should be fine. You ask about a 4.5 amp psu in such a way I do not know if you are refering to a weak little wall wart that gives 4.5 amps dc. that will burn like a torch!! this is a photo of a 4.5 amp wall wart this will not work!  yap, it was actually burning but i changed the default values and underclocked it a little bit and now it gives me like 40 gh instead of 60 but the psu is not hot! ill search the limit  thanks I would get a new power brick if one you are using was "burning". It being hot is not a good thing at all, avoid this as much as possible. It's like playing with fire if it's truly that hot. Eventually your going to have a problem as they should not be "burning". Maybe i exagerated At no moment i wasn`t able to touch it It was hot, but not that much Just more hot than my laptop`s PSU but less than other ones that i have touched. Hot is still not a good thing when talking about power adapters. Is this one that came with U3 or a " 4.5 A" you described once above? |
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is thier any new pools I am suppose to switch to and get payments faster? cause all of a sudden my S3+ now takes 5 or 6 days to get 0.01 BTC instead of 2 days like before
was thier a big spike in bitcoin difficulty or am I just on a bad pool now? I'm using bitcoin.cz
Diff has gone up and S3 is not very effective. If you don't have very cheap electricity it's not profitable anymore. Changing pool won't help this. Yea I was afraid of this I can't afford a 1TH miner, and my S3 only makes $25 a month now That is the nature of the game. As gear get's older the less it makes from efficiency. I am a little surprised to hear you make 25 a month off a single S3. What is your electricity price? the s3 is pretty much done.. at todays diff and btc price they make 23$ @ 100% luck.. at 10c a kwh they cost 25$ to run.. altho you can undervolt them.. to add some life.. i have 3 running, but kano's luck is keeping them alive.. but just barely and im using mine to heat the back room to keep the mildew out.. so there is that. That was what I was thinking that he must be "free" or near "free" to make 25 still. I found that impressive it does it a month for anyone considering age and price they sell for. They were built like tanks though. So I expect we will see them around for quite a while yet just has to be very very cheap electricity. |
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I would add, if your temperature does get warm...........don't trust SMARTSPEED FAN. Change the minimum FAN speed to something higher than 20%, rather than leaving it to chance. You may or may not lose 50-100 GH after the fan speed change but the peace of mind is worth it.
I added above on temp aswell. Everyone should keep in mind when reading ambient temp advertised is not for a machine over-volted. If your over-volting past 12.2 that really is not a area that has been tested for max temp, as it was not meant to run at that voltage. And sorry to hear about your loss on it nhando hope you manage to get it fixed up. |
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Guys,
I hate to be the bearer of bad news but I too experienced the same issue Phillip with the Over volting burnouts. I have my IBM 4K voltage set to 12.65V which the Avalon GUI would show 12.5V. SO PLEASE DO NOT change the voltage unless you can guarantee your environment temperature remains very cool. My Avalon 6 is no longer functioning as a result of my wife closing the garage door all the way (I normally leave 8-10" gap). This cause the ambient temperature to rise to 91-94F. All the S7 handle it find as I have all the FANs set to 60%.
I wish I did the same for the Avalon 6. I don't care what anyone say, this SmartFAN is pretty stupid as you can see it normally let the box goes to 76C even when my garage is cold. When you manually set it to something like 50-60% it runs cooler in the 68-72C. I wouldn't leave it at the min of 20% for the summer months. I'm currently temporarily hosting 2 other Avalons for my brother and I tell you, it's going to be stock voltage and Min FAN speed of 50%. They run inside my house so they're much more pampered, however without over volting, I feel that Avalon should compensate the buyers for the misleading advertised hash rate of 3.5 or 3.65TH. At least Bitmain say +/- 5%. There's no such statement for the Avalon and all 3 Avalons I have are running only 3.2-3.3TH on both EVGA G2 and Dell 750W PSU. I never see it hit close to 3.5 or 3.65TH without over volting.
Everyone knows I'm a huge fan of the Avalon 6 and have been a big supporter of it, so this isn't a bashing post but more of a warning. Fortunately for me I have AMEX purchase protection for the first 90 days so even if my son kick it down the stairs because he hates me, it would be replaced by AMEX during the first 90days. However, I do wish I purchased this unit thru Block C or Oregonmines vs Zoomhash. All I need is a statement saying that over volting voids warranty or simply a price quote for 2 hash boards so I can get AMEX to approve the reimbursement and get this fix. You would think that is pretty easy as there's no liability for Zoomhash and it's a sales opportunity, but it's like pulling teeth. This is where I applaud Yan at Block C for his wonderful support for Phillip. Needless to say, I won't be purchasing anymore units from Zoomhash.
Too summarize, the Avalon 6 is still a great box as long as you use it as designed as I never had a single issue for 2 months I've owned it. Unlike the S7, it's quiet enough to run inside the house, but if you get the itch to go to 3.8-39TH via OVER VOLTING, please thread carefully and make sure cooling is consistent and monitor closely.
They are great machines it's just if you keep pushing them... eventually there is a breaking point. Here is official spec ( http://www.blockc.co/collections/bitcoin-miners-shop-avalon-blockc-co/products/avalon6-bitcoin-miner ): PSU Requirements: 12V DC ±0.2V, 1100 Watts minimum PSU output (use high-quality cables) * 1200+ Watts recommended. System draws approximately 1000 Watts. Also top end of working condition is: 0C to 35C (35C = 95F). If you are pushing the 95F you need to look at more cooling you should not run it constant at the highest ambient. That is also for a machine that is not over-volted. So keep that in mind when reading temp if your pushing over the 12.2V If you have it under 11.8 or above 12.2 you NEED to change it as it is not built for it. Yes it might work..... but long term it was not built to do that. If anyone still has it pushed up so high ..... turn it down. |
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is thier any new pools I am suppose to switch to and get payments faster? cause all of a sudden my S3+ now takes 5 or 6 days to get 0.01 BTC instead of 2 days like before
was thier a big spike in bitcoin difficulty or am I just on a bad pool now? I'm using bitcoin.cz
Diff has gone up and S3 is not very effective. If you don't have very cheap electricity it's not profitable anymore. Changing pool won't help this. Yea I was afraid of this I can't afford a 1TH miner, and my S3 only makes $25 a month now That is the nature of the game. As gear get's older the less it makes from efficiency. I am a little surprised to hear you make 25 a month off a single S3. What is your electricity price? |
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yes the blue plate gets hot, that's why my 1st 3 U3 hadeach a 60mm fan under push air up against the base plate.
That's why I built the shelf so that each U3 would "suck" air from under the one on top of it + 2 120mm fans at the bottom
Yea I noticed the same that it got hot. I was surprised as a design they designed it like that, if you look at bottom of U3 it's almost like a little heatsink how they have multiple lines under it. I will get a picture of area I ran mine in sometime. It was overkill on fans but they did not heat up on bad with not overclocking. |
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Is there a particular thing to do, to get 3.2 to 3.4THs? I get wildly different temps and different hashrate and no where near 3.4THs. Is it a overvolt thing only? I'm on ATX psu but i usually get 12.1v at the ui;  I see "smartspeed" is on, not sure if i need to do manual tuning or something? (shortened post quite a bit) I am not sure what your question is. the screen shot above is showing 3.5th is that you? I think hes asking what causes the lower then 3.5 area, I'm guessing he has not experienced it. The most common reason I would say is the PSU puts out less then 12.0 volts. Not all PSU's are the same on putting out exactly 12 or 12.1 even. I have some EVGA's that worked great for everything else but with A6's they tend to be 11.9-12 most of time. Yes, sorry for being unclear, i'm wondering why the hashrate varies so much. For example, it look like the first unit, in the screenshot (yes that is me) can do 3550 to 3650 depending on uncertain factors. While some units does 3.2 to 3.4 and the GUI still report 11.9v to 12.0v. I am under the impressing these prefer running hot? because generally unit #1 does 3650 and the second one does 3550. But i am not sure why such a varriance&difference in hashrate and also temps, they are each using a EVGA G2 1300w. Now the real problem i have right now is, if i set the minimum fan speed to 60, it fix the issue of the fan going from 2.5k to 5k all the time (i find it insanely annoying). The fan does 3-3.2k all the time which is great. But if i do that unit #1 seem to run too cool(?) and lose 100 GH/s? I'm just trying to ascertain what is going on and see if someone has a workaround. Maybe controlling the fan of each miner individually? leave the fans at 25 they will ramp up less. since i have a 1/2 unit i will try a different fan and some other fun. Out of curiosity what does the miner seem to run like that has 1/2 of boards now? Does it seem to run fine just has only 1 board? Was not sure with smartspeed what it was set to do if anything different when just 1 hashing unit. |
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Spondoolies sp35!  3.5kw with 4*8cm fans.... The problem with some like this will it heat up a room... yes very much so . But the noise of it is going to be more then I like personally. I'm not sure what noise level OP wants. But I think noise is important when trying to use miners to heat a room. I admit I have had loud miners in my room when testing. But I personally am not a huge fan of having a loud miner in my room long term. I normally just test it for first day's in room and then move to my mining area. Although some of the 240's ones I have been doing straight out to my mining area. |
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Switching gears, got an evga 1000W PSU, both antminers up and hashing great. I went to overclock them, and just went ahead with the max. One S3 is has perfect ASIC status and good temps, the other one good temps, but one "o" on the asic status bar is an "x". Just one. Should I be worried. Behing overclocked to a frequency of 250, both hash right around 500ghz.
I cant say if worried or not since I cant see it. But X is not good, but you mention overclocked. Some S3's do it better then others. On one with X's pull it back start at default freq, see if it stay's at all good. If so then try OC slowly. If it default still have X then look at it more. Are you overclocking with 1 PCIe on each side or two? (not split like one cable splits into 2, but 2 separate PCIe cables. |
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in morocco we cost 0.09$ per 100KW/H...it's cheap ou not ?
So 0.0009$ per kWh? Make sure you're not messing up the math and you're not missing other fees. But if thats the case then thats nearly free electricity. 0.09$/kWh is high but not unusual. 0.05$/kWh is very good. 0.02-0.03$/kWh is greatness and anything less would be hyper fantastic for mining. This could be horribly wrong but a article - https://energypedia.info/wiki/Morocco_Energy_Situation say's "Prices range from 0.9 MAD per kWh for up to 100 kWh / month to 1.49 MAD per kWh beyond 500 kWh / month." .9 MAD = approx 0.093046 USD So it is normalish electricity nothing special. But I would check as if site is right it rises as your usage does. And this is old like 1.5 to 2 years so very well could be higher or lower. Do you have a VAT aswell? It appeared you do there, but that will also make a difference depending on price. |
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None of them. I rather wait for the next generation miners.
Looking at the difficulty i got no trust this machine will even get me my investment back, let alone make a profit.
But when the next batch arrive, the difficulty will raise again like it is now and you will see about the same profits as now. It will always be like this. The problem is probably your running costs and not the miner's efficiency. A lot of the people who say "I'm waiting on next gen" never end up being miners. Truth is there always will be a next gen. Does not matter what miner you buy it will one day be replaced. A lot justify it with themself's and say they are waiting.... but the truth is most never get in the game. Having is coming if your going to mine do some ROI and jump in. If your sitting on side you might think about buying BTC, is only other thing that some can argue it's better all depends on situation. |
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The variations get bigger and bigger!
Can go to 700 or 1400 just for few hours!
i agree seems with all this hash its been swinging very wild i wonder if that has to do with block propagation.. If half the network is constantly 30sec - 1 min behind at block change would that cause crazy flux.. or is that negligible at this point.. Interesting for sure Edit>> also i was thinking that they turned on and left it on all along and this could have just been network variance on finding blocks.. Hard to say.. But ive seen a lot question why one would turn on such a large amount and off(leaving coin on the table) but it could be testing or heat issue.. could also be a bad streak of luck as well.. Best Regards d57heinz well we do know that bitfury has a working chip that can do .06 to .11 watts per gh. we do know they built a 40 megawatt plant we do know all the wild swings started near that plant's announced startup. So my guess is cranking it up and down as they learn to manage the full speed full power . Last three days suck.... Part of what I find scary if they really have them is bulk sales. They chances are will use internal and get first on all they want I would guess. Then they move to big buyers. And if you think about it I'm willing to bet they have some sales already saying once chip comes out they want to buy. Even at .11 it beats SP50, so not sure what SP team will do. Unless they play price games which did not help them on SP20's. So I think our main driving force will be bitfury. Only thing we don't know is if some companies such as Bitmain have one sitting there ready to make that can compete with bitfury. I almost hope bitfury is only one for a bit.... as I hate seeing high difficulty rising. Value is up around 400 again (a few dollars shy), but positive to see a tad bit of rising. Difficulty is not looking great. |
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I use blockchain, I think it's very secure
And what made you come to this conclusion? It is a hot wallet. So not the most secure wallet type. But if your using it make sure to use 2 factor to give it a lot better chance of security. Which I hope all that use it are using 2 factor. |
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