These Batch 2 and 3 miners probably won't get shipped until,
* Price of BTC goes to $300-$315 and reverses back down. I think they are holding them right now and mining with them so they can dump.
*Or will ship them on November 5th as its the last delay day.
Mining is very profitable at the moment.
to buy bitcoin a few weeks back, then ordering batch 2,3 now would be profitable too. b2 is going for less than 6BTC, shipped. |
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The s-7 is better then the s-5
And depending on your setup there are mufflers that work.
I disagree. To me 1 x S7 is much louder than 3 x S5's. Even with fan speed reduction to 30%. I say everyone has a different pair of ears. The pitch of the s-7 may sound worse to you. But the s-7 is far easier to manage sound wise then the s-5. In any case, it might be unhealthy to be close to multiple S7 (he had 7 running) without any kind of hearing protection. |
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So I just had a slightly disturbing issue with one of my S7's - I just happened to be near it when it started beeping (the same thing as if the Internet was down). I went in to check it out, none of the other machines near it were having problems, so I power cycled it. It didn't renew it's DHCP lease, nor did it try to get another address, but it powered up as if everything was ok... More troubling is that I was watching my power monitoring, and the power jumped as if it were hashing full speed - I went back to the unit, the fan was spinning but on a very low setting, and the air out of the back was HOT. Having flashbacks to the S5 burnup problem, I unplugged it again, let it sit for a couple minutes, and plugged it back in. Same issue. This time I pressed and held in the small hidden factory reset button, after a couple seconds it gave the long solid tone that normally means it was successful, but once again - no DHCP request, and it looks like it's hashing even though it doesn't have any internet connection.
REALLY not wanting to see a repeat of the S5 issue - loosing a couple hundred bucks a pop when it happened was bad enough, but loosing thousands would be brutal.
I'm going to swap the BB with another S7 to see if that might be the issue, and I'll update as I do some more tests and see. They've been running fine for several weeks, I power them off of a IBM 2880W PSU (one PSU for each one, since I have a bunch), so power shouldn't be an issue...
hashing where to? in any case, maybe turning it off for 20 min instead of just 2 would be a better idea to make sure things equilibrate thermally. I would put a fan (like Vornado) blowing at it as well. |
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Feels like 2012 again, actually, with this flat prices and quiet move upwards. I really believe that those dudes who sold at ATH are now accumulating for the next run. The whole year is, I think, the greatest time to buy more seeing that it just stayed below 300 most of the time. I see the graphs and read the explanation, and I love it. Realistically speaking, there is a slim chance of this to happen, but hey! Everything is possible.  IMO by 2030 there is a slim chance this won't happen. Question is.. are your balls made of steel or balasa wood? Winter is coming John snow. Mine are made of steel, that I'm sure of. If in case it does happen within the next 5 years, I don't see a reason why would I sell anything right now. I'm a believer yes, but not delusional as others may seem to be. Realistically, we wouldn't be able to reach that $13000 in just a year. We can though, if hyperinflation comes to play. All it will take is for people to have faith in BTC as a store of value and move some from gold to BTC and boom. yeah, there is Silbert's video interview out there where he posits that bitcoin price will go up 100 fold if just 5% of current gold value (7tril) transfers to bitcoin, nothing else required. https://www.youtube.com/watch?v=LOtgNhmNRm4 |
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Overly optimistic in my view. We cant' even stay at 270 right now. The past is no indication in bitcoin. Remember that the past 24 month long bear period has broken new grounds. Too many people bought in at $1000+. If and when we reach $1000, they will dump their bitcoins, we will go right back down to 200.
No. When the price reach $1000, most of the people would think that their long awaited target reached and start to sell that may pull back some 10% to 20%. Usually we say that profit booking. A profit booking never drag back to the origin. But the new money in flow will make it to pass $1000 again. I can't imagine how awful it's going to be for the responsible ones who sell a significant portion or all of their coins at $1000 or even $2000. Who knows where the top of the next movement is? I was a bitcoin GPU miner back in 2011. I watched as the price hit an all time high of ~$31 that summer, then collapsed. I sold everything when bitcoin was in the low 30s in early 2013, thinking it couldn't possibly get much higher than the previous ATH. Within a matter of months, of course, the price was ~$1,200. I'm not making the same mistake again. up to $40-50K, then? I admit that it is developing slower than I initially thought. The true breakout will happen if we get a wind of some major government actively sourcing miners or purchasing btc. Could be China, Russia or US-I wouldn't be entirely surprised by any of these three. In fact, I am surprised that a few consultants did not rec this already. After all, expenses would still be meager at this point ($400 mil for 10% of btc) and having 10% of BTC might come handy later on. |
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LMAO,there will be NO prices for us "home miners",unless someone leaks them  Move on to companies who WILL sell to the general public,SP-tech is not going to be one of them  That's because these new miners are not meant for home miners, they're being made probably mostly for internal use, with a few shipments going out to some big data center folk. The SP50 was never intended for individual use or sales, probably one of the reasons they're so hush hush about pricing and such, because ultimately it doesn't matter unless you are in their inner circle. It's like Ferrari where many of their models are only available for purchase by Ferrari owners that the company personally invites to buy one of their cars. In my opinion making big ass miners is a mistake as it locks you into technology that is prone to be bypassed in a relatively short order. making the boards replaceable only partly solves it since what are you going to do with older boards, unless you have a Sp40 frame where you can stick them in and potentially sell to the public as used goods. I wonder if the chinese company that announced a 14/16 nm miner is for real or not. I am quite skeptical, but if it is real, SPT/BMT will have their hands full competing. LMAO,there will be NO prices for us "home miners",unless someone leaks them Move on to companies who WILL sell to the general public,SP-tech is not going to be one of them That's because these new miners are not meant for home miners, they're being made probably mostly for internal use, with a few shipments going out to some big data center folk. The SP50 was never intended for individual use or sales, probably one of the reasons they're so hush hush about pricing and such, because ultimately it doesn't matter unless you are in their inner circle. It's like Ferrari where many of their models are only available for purchase by Ferrari owners that the company personally invites to buy one of their cars. yes, but this cannot work with a bitcoin miner, no matter how efficient it is, because it is not a relatively unique item like Ferrari or Lamborghini. If you make it an exclusive, the rejected party could just buy bitcoin instead of messing around with miners. No such thing with F/L. |
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Last thing to keep in mind, if your PSU is pulling 1200watts at the wall, its not running 300watts per pci-e, since you need to deduct the watts wasted by the PSU conversion and also the fan's usage.
Partly correct. The fan usage DOES come out of one or more of those PCI-E connectors (I think it's probably split between 2 of them, but haven't pulled my SP20 apart long enough to actually check it). DON'T count on 1.7 TH - you have to have a very cold room to even have a prayer of achieving that. 1.3-1.4 TH range is achieveable easily even in somewhat warm rooms though, and is quite a bit more efficient to achieve. Do NOT under any circumstances try to run 2 connectors from one cable, unless it is a VERY custom cable with something on the order of 12AWG wiring. SP20 does not have wireless. Standard twisted-pair Ethernet only. The official spec on the MOLEX connectors that the PCI-E power specification uses works out to 288 watts per connector (the pins are rated more, but have to derate for use in that particular connector style). Exceeding this tends to lead to issues like the KnC Neptune and some Titans had with MELTED connectors and resultant fire and damage-to-unit risk. Most power supplies use 18AWG on their PCI-E connections - this is plenty for a SINGLE connector at 225 watts (per the PCI-E spec), it gets a bit marginal at 288 watts. I wonder, what is the highlighted based on? I run Sp20E very downclocked at ~1200Gh using ~640-650W at the wall from a single Corsair CX750M, which has 2 split PCIE cords providing 4 required connectors. The cords or connectors never exceeded 45C and I have a lazer temperature probe. I grant you that you have to first connect a more powerful PSU (like EVGA 1300) or two CX750, then change settings on the machine to downclock, check power usage, achieve stable hash and then optionally changeover to a single CX750, but it is doable. I run a machine like this for almost 9 mo with no problems whatsoever. |
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I wonder how they distinguish between batch one,two,three?
In regards to shipping or in regards to testing each board for its quality? Batch 1 & 3 are the same in specifications with different price and shipping dates. I got a batch one clocked at 575. Is there a label on it to specify? If/when I sell how will the new owner know? It's quite easy... All 44 of my S3's, S4's, SP20's and S5's were sold on eBay. I posted screenshots of the "Miner Status" page for each rig AND the "Network Settings" page for each rig. This way, they new by the MAC IP ADDRESS assigned to each rig by bitmain on the assembly line is the actual rig they will receive. It's like an SSN for each rig to identify it. They also see several days of the rig mining consistently at 4.8+ TH/s at 600 MHz with low HWE's. I also let them know since this rig is running super as proved by screenshots, that also shows the date the screenshot was taken, there will be no returns for the rig(s) they purchase from me. I did all 44 of my various models of mining rigs this way without a hiccup. call me old fashion, but I most likely would have never bought a miner which MAC address was publicly posted on ebay. You don't think that this could make remote hacking of it easier? i am not a network specialist, so maybe this concern is misplaced. |
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Will it void my warranty if I move boards between miners? I have nine and they average anywhere from 4.79 to 5.1 (actual avg 4.99 @ 600 across all nine), so I was wanting to move the boards between chassis's to determine if the variance is in the pressing or power related. I am obsessive/compulsive, so it really boils down to the fact that I can move two boards between s7's so they all average almost the same hash rate.
I also want to apologize for my anger with bm that I may have turned on a handful of community members. I know it's the status quo in our current hardware market, but week after week with the difficulty rising caused me to lose my cool on a couple of occasions. I apologize for being an asshat on a few occasions!
Ufo
typically, it is better to leave them alone once the going is good. What you see is a normal variation. It would be exceedingly difficult to find a combination as there are 2925 possible combinations of boards if you have 9 miners. You would have to do a combo, then record the data for 12-24 hr, so basically you would have a final result in ~5-10 years if you do one at the time. |
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I wonder how they distinguish between batch one,two,three?
In regards to shipping or in regards to testing each board for its quality? Batch 1 & 3 are the same in specifications with different price and shipping dates. I got a batch one clocked at 575. Is there a label on it to specify? If/when I sell how will the new owner know? They won't.. Basically ANY Batch 1 will be considered a 4.66TH unit for future buyers. Anything else will be bonus. usually people put more info re sale than a batch #, hence the price will be linked to an average hashing speed, NOT a batch #. |
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regardless of all this, it seems that something was unplugged today, so hopefully, shipping of 2/3 will commence shortly.
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So happy so far with my Batch-1 s7 so I ordered a B2 one today. Wonder how long this one will take? Also - why are the batch3's a tad more expensive than the batch-2's? Batch 3 is 4.86 TH/s @ 600 MHz and Batch 2 is 4.66 TH/s @ 575 MHz. 200 GH/s difference and 1160 watts for Batch 2 verses 1210 watts for Batch 1 and 3. They are both still 0.25 watts per GH Interesting. My batch-1 s7 came with factory setting of 600mHz and is humming along perfectly at over 4.86 as reported by my pool. Guess I'll just have to goose the coming batch-2 one to the same and see how it does. . They were not mining to specifications they laid out for Batch 1. However, they should work fine at 575 MHz instead of the 600 MHz originally quoted for Batch 1. If it was so, then it is not clear why batch 2 was not sent at the same time as the remainder of batch 1. Just policy? |
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3/4 PSU sold, one CX500M for $49 remains (shipped to US).
Cheers
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is "fanilly" a new bitcoin meme like HODL, ? keep it as is, maybe it will be become one... |
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What are acceptable temps with these?
If you have low temps is it understandable that there is more to be had with higher freq as with the other miners?
possible... quite a few people already posted better results with higher temps (starting with ambient above 25c admittedly), but if your ambient is 10C or below, then there might be a limit in optimal chip hashing frequency rather than just board temp. You might get low enough temp even at very high frequencies, but chips might throw errors anyway and miner will throttle back. |
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My order is stuck in customs and FedEx is asking for a better description of a "Bitcoin Miner". This is irritating because my first order was delivered without any customs nonsense.
The good news though is that at least I know where my miners are. I'm no longer in Bitmain limbo.
I can of course give them an answer. But does anyone have a concise description that you've successfully used in the past to get your miners through customs?
Currently I'm thinking somthing like this:
Specialized computer hardware whose sole purpose is to maintain the Bitcoin network by attempting to solve complex math problems.
If anyone has the magic language that worked for them, I'd appreciate it.
FYI, I used some of the language from this post: https://bitcointalk.org/index.php?topic=620682.0Hopefully that will work... so, you already replied. What's wrong with "ASIC based computer/server"? |
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With my S7 it's working fine. HW went down big time
@beffje, thanks for posting this. What's the input air temperature that gets you to 60°C? And how unpleasant is the fan noise at that speed (~2200RPM)? not @beffje, but it is only unpleasant at ~3900 rpm for my ears. I would say that if you can get a S7 safely to 2200, then you will be surprised how little sound comes out of it (it is much less than S3, which was good). |
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My wife's guinea pigs (very docile, but curious at the same time creatures) were afraid of antminer S5 at full speed. S5 was on the same floor. They were sitting in their little 'houses' all the time, which is unusual. Upon my modding of S5 the behavior changed back to normal (no lasting damage . Interestingly, they are not afraid of S7 at all, although I isolated the sound much better. S7=a guinea pig friendly miner? |
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I think that boards temp discussion is very interesting.
I am in fullzero camp that says that increased board temp is beneficial for speed (at least to 56C from 51C in my case) with everything else being equal.
However, what is the best way of raising temp?
At least in my case, i found doing so by lowering fan to be tricky: I had an occasion of miner losing login and killawatt going bad and essentially disconnecting the miner AFTER i was trying to lower fan. Maybe it was just a coincidence, but I also saw intermittent X on one chip at fan setting 60 or so (incidentally, whichever setting results in ~3900 rpm, this produces the most annoying sound with anything 5% above or below being much better).
To me, it looks like raising board temp to 56 by partly closing the door to "mining" room or providing slight obstruction (by tunneling the exhaust) to the air pass resulted in temp rising to 56 and ~40-50GH more hashing. I did all attempts at frequency 600.
The main question is: would rising board temp to 56 or even 60C affect the lifespan of the machine? In S5 it did not, but it remains to be seen here.
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If you want payouts more often, configure your minimum payout to the minimum.
Note that you may incur higher transaction fees later on when you want to spend them, though...
That's just how Bitcoin works, not the pool.
1. I am curious about this. It used to be that your pool automatically adjusted payouts so they occur once in 5-7 days as long as it is above minimum. I had SP30 and payouts were all 0.1-0.13 BTC using default. Now, suddenly in the last 2-3 weeks hashing goes for on until at least 0.3-0.35 BTC for miners with the same hashing speed (S7). I don't see a conspiracy, but something changed in payment handling, hopefully not for long. 2. there are also quotes like "0.00000 BTC remains to enter the payment queue, payment should occur in the next few seconds"....nothing 12-24 hours later and now it says "there are 48 BTC ahead of you". Mind you, miner was hashing with the same speed throughout. |
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