The 105 watts saved for each S7 I'm running adds up.
Seem like a big difference. It should be 2~% efficiency difference between Gold and Platinum. You're talking about an efficiency difference that sound more like Bronze vs Plat than Gold vs Plat. You may be correct. I'm not familiar with what percentage puts one in silver, gold, platinum and titanium. Maybe I should not have used that terminology. However, I believe if one looks at the actual numbers, they can see the logic behind the power savings which opens up more available power for more revenue. EDIT: By the way, Prelude, did say the 2880 is more in "silver" territory than gold or platinum. I quoted him in my post above.If the difference is actually 8%, then yes, thats pretty big. 86% efficiency at 8X% load would be silver efficiency and 91% would be platinum. https://en.wikipedia.org/wiki/80_PlusIt would be a good idea to double check what efficiency those PSU are supposed to make to make sure the watt difference is not a Fluke, because a 8% difference in efficiency is HUGE. Look at the following link for the numbers on the 2980... There are no numbers on the 2880 except for those done by members in the forums. Prelude used a watt meter to check the efficiency at 50% load for the 2880. He said it was more like 87% at 50% load. Here is the link for the 2980: http://www.plugloadsolutions.com/psu_reports/IBM_39Y7414_2980W_SO-188_%20Report.pdfEDIT: There is a possibility I'm off by 1%. Even at 1% off on my figures, the 2980 is still very much worth getting IMHO if one is using MANY PSU's with MANY rigs. What i'm thinking is the efficiency difference should be about 1%. A 8%, even 7% does not make sense. I'm not sure what's up with all that, maybe the 2880 tested were bad? I think this warrant more testing before throwing an extra 5-10k into 2980's. |
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I was very lucky. I have free electricity due to having disability supports in place so I can live much like society, only with lower income ATM.
Luckily, out of that, I get free electricity and can run an Antminer S3, so far. I managed, by the skin of my teeth, so to speak, to afford the damn
Antminer S3.
If you are lucky to raise 250 USD or your fiat to get at least an Antminer S3, try and get one and mine ALTCOINS and learn about trading, if you
didn't already. Hey, free electricity in a given case, be it college, paid for by gov agency or whatever, take the opportunity. I had to scrape up the 260
for the miner.
Check the algorithm of your miner; mine is SHA-256, and find a good coin with a passable value per coin. Example; 1.00000000 someoddcoin is
BTC 0.00000250 at least, or if you can, use the smaller values to mine and save for a time. Cash it in when you see a spike of the coin in YoBit, or
other like currency exchanges. You want to see the trade price bar up and NOT down. When it rises, then sell if it reaches your satisfaction.
Save some to get Antminer S4 or higher if you wish with trading and free electricity.
Don't use Cryptsy for now, as there has been some crap happening and everything needs sorting.
*gasp* Did you pay 250USD for an Antminer S3? You can get them for 100USD. 250USD is more in the realm of an Antminer S5. Also i would advise against gambling, stick to a good Bitcoin pool and put your time into something more constructive. |
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I'm considering a silencing mod to Antminer S5. Would it be a good idea to use Corsair SP120 Performance Edition to push air in and SF120 Performance Edition to exhaust? I have seen recommendations to use two SP 120s, but wouldn't it be better to use SF120 as exhaust fan, because it is pushing air to free space?
Or is clearance behind the exhaust fan too small to use SF?
The problem is mostly the cooling performance. I received a S5 with two of them on and it was rather subpar, since i like to run them at 1.3TH/s. I'd recommend you just use the fan speed control on the stock fan. I run 2x S1/S3 fan on a couple of the S5 and it work well too. You can set fan speed to minimum ~20% on the stock fan and i suspect depending on your ambiant that your temps will be too high. However thats still better cooling performance than the SP120. I understand that people may want to use a SP fan to pull and a CFM fan to push, but personally i have not found much of a point. By principle the CFM fan would be able to push a nice amount of air because the SP fan remove the pressure, but the thing is you need both CFM and SP, otherwise one of the fan kind of make nearly no difference (though it does, just to a very small amount. Did I understood correctly, that you wound use SF to push air in and SP to pull air out? So vice versa what I thought? I had two sp120. So not a lot of CFM. The SP is required, but you need CFM too. And CFM with no SP is bad too. Anyways this might contain more actionable information for you to use; https://bitcointalk.org/index.php?topic=974503.0Right now some people are looking into the Enermax TwisterStorm; https://bitcointalk.org/index.php?topic=1291439.0 |
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The 105 watts saved for each S7 I'm running adds up.
Seem like a big difference. It should be 2~% efficiency difference between Gold and Platinum. You're talking about an efficiency difference that sound more like Bronze vs Plat than Gold vs Plat. You may be correct. I'm not familiar with what percentage puts one in silver, gold, platinum and titanium. Maybe I should not have used that terminology. However, I believe if one looks at the actual numbers, they can see the logic behind the power savings which opens up more available power for more revenue. EDIT: By the way, Prelude, did say the 2880 is more in "silver" territory than gold or platinum. I quoted him in my post above.If the difference is actually 8%, then yes, thats pretty big. 86% efficiency at 8X% load would be silver efficiency and 91% would be platinum. https://en.wikipedia.org/wiki/80_PlusIt would be a good idea to double check what efficiency those PSU are supposed to make to make sure the watt difference is not a Fluke, because a 8% difference in efficiency is HUGE. |
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pool just went dead and kano.is is down. Everything all right?
Nope, a ddos happening ... Kano - will the site be using an anti-DDOS solution like Cloudflare. The DDOS seems frequent now? Thanks It already does use an anti-DDoS solution, just it both cases it hasn't fallen within the boundaries of solving the problem quickly. Todays was, as I said: According to the data centre, it was too small to trigger the base DDoS protection so until they manually intervened it was successful.
The DDoS itself was about 40 minutes. The previous one lasted for for 45 minutes https://bitcointalk.org/index.php?topic=789369.msg13355153#msg13355153So for both of those, I don't see any different DDoS "solution" doing much better. I will be setting up some other options soon to reduce the effect on most miners The previous one to that (September 24) was a data centre attack, not directed at the pool itself, and very large. https://bitcointalk.org/index.php?topic=789369.msg12508163;topicseen#msg12508163so any 'other' solution would have made no difference. Cloudflare is NOT a mining DDoS solution. Adding (large) latency to mining (more rejected shares for everyone and more orphans) is not a good idea. Maybe a silly idea, but maybe a user whitelist fail-over or something? Not that i would know what i'm talking about, but i reckon some users being able to mine on a private url/whitelist if they sent a PM, the pool was being blackmailed/ddos'd. Not 100% if it was this pool or Nasty Club. |
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The 105 watts saved for each S7 I'm running adds up.
Seem like a big difference. It should be 2~% efficiency difference between Gold and Platinum. You're talking about an efficiency difference that sound more like Bronze vs Plat than Gold vs Plat. |
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I'm considering a silencing mod to Antminer S5. Would it be a good idea to use Corsair SP120 Performance Edition to push air in and SF120 Performance Edition to exhaust? I have seen recommendations to use two SP 120s, but wouldn't it be better to use SF120 as exhaust fan, because it is pushing air to free space?
Or is clearance behind the exhaust fan too small to use SF?
The problem is mostly the cooling performance. I received a S5 with two of them on and it was rather subpar, since i like to run them at 1.3TH/s. I'd recommend you just use the fan speed control on the stock fan. I run 2x S1/S3 fan on a couple of the S5 and it work well too. You can set fan speed to minimum ~20% on the stock fan and i suspect depending on your ambiant that your temps will be too high. However thats still better cooling performance than the SP120. I understand that people may want to use a SP fan to pull and a CFM fan to push, but personally i have not found much of a point. By principle the CFM fan would be able to push a nice amount of air because the SP fan remove the pressure, but the thing is you need both CFM and SP, otherwise one of the fan kind of make nearly no difference (though it does, just to a very small amount. |
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Hi Guys - I need help on upgrading FW on the S7s to the latest ones.
The Bitmain support page lists a number of FW for different S7 batches and I need 2nd pair of eyes to double check which FW goes to which S7.
My current list as follows:
1. 4.73TH/v.1.32 (700Mhz) - Batch 8
2. 4.46TH/v.2.0 (600Mhz) - Batch ?
3. 4.66TH/v.1.7 (600Mhz) - Batch ?
4. 4.66TH/v.1.7 (600Mhz) - Batch ?
5. 4.73TH/v1.31 (700Mhz) - Batch 8
Appreciate any help.
Regards
TMT
I second the opinion ^^^^: why upgrade? It's fine w/o. Yes, I kind off agree with that rationale however during failover situation with kano site this week, some of the S7s will continue beeping even when kano is up again. The users with Dec FW applied didnt seems to be affected by this. And that is why, it's probably best to get things up to date before New Year. That's far from a scientific conclusion, but the risk is yours to take. Turning the S7 off and then on again would probably work too. Its rare that Kano gets down/DDoS and i have not seen this happen on simple stratum restart. Anyhow, good luck, would suck if you lost a controller on an upgrade, because afaik, very little "updating" has been actually done by Bitmain that actually fix anything. |
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Slight correction to your instructions...
Controller must be powered on last when using multiple PSUs, so in your example you'd turn the 1000w PSU on first and then the 750w PSU last.
Edit: It should also be noted that these are from a new lineup that seems to have moved away from the amazing Leadex OEM platform that we all know and love. Until more details are out there (particularly, a jonnyguru review showing the innards and who the OEM is) I'd stick with the known quality of the Leadex based G2 series.
i will alter that. But as for buying these over the well know leadex super stud 1300 g2 the 1300 g2 will not run the s-7's that are pulling more then 1400 watts. Ie batch 8. So you would need to get a 1600 g2 1600 p2 1600 t2 All of them are more then 300 usd. The 1600 g2 which I have owned and tested the 1600 p2 which I still own and the 1600 t2 which I have owned are all good psu. as I understand the batch 8 the 1300 g2 at 179.99 - 20 rebate = 159.99 no longer can do the job http://www.newegg.com/Product/Product.aspx?Item=N82E16817438011&cm_re=evga_1300_g2-_-17-438-011-_-Productthus the 1600 g2 1600 p2 1600 t2 are all really expensive The 1600w version would be better efficiency wise, but the 1300w units would work just fine with the 135 chip 700MHz. B8 pulls approximately 1237.6w DC from the PSU, so while it's close to the rated 1300w it's not a problem, especially considering EVGA covers these for 7 years under warranty. These GQ are only 5 years. Phil found such a good deal on PSU's the difference in savings vs efficiency savings make it where his is better I think. It's what 150ish or so less then 1600 G2? Somewhere around there. If you really want efficiency 220/240 server psu is way to go. But that is not a option for all miners. It's a fantastic deal, no doubt better than getting 1 1600w G2. I did some digging, these GQ units are built by FSP instead of leadex and are of a lesser but still good quality than G2 units. There are reviews for the 650w and 850w units up on jonnyguru. 1237w DC for B8, 4.7TH/s would be pretty fine for me. I worried because it says just under 1300W DC on their page. Good, i just learned Leadex = also SuperFlower. Summary EVGA PSU; Top notch; G2 = SFlower/Leadex = 10 years Warranty GS = Seasonic = 7 years Warranty Still good; GQ = FPS = 5 years Warranty G1 Did not dig deep here, heard not as good. |
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have been. everyone's gone insane though locally trying to either sell broken hardware as working or wanting close to original list price for their barley working outdated miners :/
I live close to Ottawa, if you come by here and of course if you are interested in what i have, then i have 2x S4 for sale, 3~ AsicMiner Tube and some PSU's. bit to far of a drive for me sadly :/ last time i went to Ottawa it was a 6 or 8 hour car drive (i forget which) which was boring as hell. that being said if for whatever reason your coming around where i live then id offer you 470cad for 1 s4 assuming it worked at 2th. I will keep that in mind, however at the current time, 470CAD does not meet the price, as i will probably make around that in 80 days of mining with it. You can however get that price per GH/s with some S3's, however they do not have a PSU built in, so that arguably extra. fair enough. if you have 0 power costs like i temporarily have then it makes more sense for you to hold onto them.im more looking for people with miners where they cant make money off of them anymore due to them not being power efficient. (the mining calculator im using says it would take 105 days for you to produce that much with no power costs assuming 9% difficulty increments) I assume a bit less loss per increment, because i assume the price will rise to some extent if the assumed diff go up as planned. A lot of assumptions. Anyhow, right now its profitable to run S1's (140GH/s@160W) so i think you may have to look into deals with people from the high electricity rate area in the US, or maybe in Canada, but not in Québec. Here its 0.06$/kWh(Actually a bit less since CAD went down again) at worse. Free at best. |
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Phil gave great instructions on trouble shooting. I would also suggest putting in a ticket or email to Bitmain to get ball rolling incase you do need a replacement hashing board.
I would guess they send a list to do aswell. If you wait on getting it to them you might have longer down time (that is if it cannot be fixed which hopefully it can without needing a new hashing board).
I opened a support ticket but still no reply yet, will try emailing them. This post right here honestly worries me. There are quite a lot of S7 problem being reported and i'm looking into buying some. When that get combined with delay, mining time lost, extra cost to ship part back and poor communication/high delays on Bitmain's part, i am wondering if this is a sound investment. Maybe Batch 8 itself is simply a bad batch? |
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have been. everyone's gone insane though locally trying to either sell broken hardware as working or wanting close to original list price for their barley working outdated miners :/
I live close to Ottawa, if you come by here and of course if you are interested in what i have, then i have 2x S4 for sale, 3~ AsicMiner Tube and some PSU's. bit to far of a drive for me sadly :/ last time i went to Ottawa it was a 6 or 8 hour car drive (i forget which) which was boring as hell. that being said if for whatever reason your coming around where i live then id offer you 470cad for 1 s4 assuming it worked at 2th. I will keep that in mind, however at the current time, 470CAD does not meet the price, as i will probably make around that in 80 days of mining with it. You can however get that price per GH/s with some S3's, however they do not have a PSU built in, so that arguably extra. |
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Hi Guys - I need help on upgrading FW on the S7s to the latest ones.
The Bitmain support page lists a number of FW for different S7 batches and I need 2nd pair of eyes to double check which FW goes to which S7.
My current list as follows:
1. 4.73TH/v.1.32 (700Mhz) - Batch 8
2. 4.46TH/v.2.0 (600Mhz) - Batch ?
3. 4.66TH/v.1.7 (600Mhz) - Batch ?
4. 4.66TH/v.1.7 (600Mhz) - Batch ?
5. 4.73TH/v1.31 (700Mhz) - Batch 8
Appreciate any help.
Regards
TMT
The best advice you will get here is "Don't update". You risk bricking your controller and there is no point in changing firmware in the first place, as there is no new features to be gained from changing from what the S7 comes with. |
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I have 4 Avalon 6 units FS located in Portland
Price? I'd be interested at a similar $/GH to the S7. Feel free to PM me any details if you are interested. |
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Hi I am new here where I can found more info before giving my vote  You don't give a vote, it is not a democracy. You just use the wallet you want to use. In a nutshell; If the majority of the hashrate, (or the trigger could be 75% of X last block out of the last 1000) use a certain wallet, then it become the main branch, since the majority decided that the current Bitcoin is to be scraped. However this is hard forking and most people do not like this. I don't. Since mining to your own Bitcoind is not really a good idea, what you can do is point your miner to a pool that will put that weight toward a different wallet (the one you want) than the current bitcoin core. Right now there is nothing trendy, so nothing for you to "vote" for. There is not a government here to push an election, hence no executive authority over voting for or against something. So unless something is trendy, there will be nothing to "vote" on. TLDR: You vote with your hashrate, but there is nothing to vote on at the moment. |
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You're a brand new account and you are refusing to use protection/escrow.
Could you provide a link back from ebay to prove you are not simply trying to impersonate a ebay seller?
Mainly because I don't know how to use escrow,frankly I don't know what evven escrow is. and yes message me on ebay and I'll get back to you The funds is put in trusted professional escrow service, for a seller, its as simple as agreeing to it and after giving your receiving address, wait for the Escrow (I recommend OGNasty) https://bitcointalk.org/index.php?topic=303281.0 to send you confirmation that he will release the fund to you when the buyer receive everything in order. At that point you ship the goods. When the goods are receiving and good orders, the Escrow will then release the funds promptly. If you need more details, let me know, but know that refusing to use escrow on this forum when youre are a brand new account will get you a lot of flak. |
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Slight correction to your instructions...
Controller must be powered on last when using multiple PSUs, so in your example you'd turn the 1000w PSU on first and then the 750w PSU last.
Edit: It should also be noted that these are from a new lineup that seems to have moved away from the amazing Leadex OEM platform that we all know and love. Until more details are out there (particularly, a jonnyguru review showing the innards and who the OEM is) I'd stick with the known quality of the Leadex based G2 series.
i will alter that. But as for buying these over the well know leadex super stud 1300 g2 the 1300 g2 will not run the s-7's that are pulling more then 1400 watts. Ie batch 8. So you would need to get a 1600 g2 1600 p2 1600 t2 All of them are more then 300 usd. The 1600 g2 which I have owned and tested the 1600 p2 which I still own and the 1600 t2 which I have owned are all good psu. as I understand the batch 8 the 1300 g2 at 179.99 - 20 rebate = 159.99 no longer can do the job http://www.newegg.com/Product/Product.aspx?Item=N82E16817438011&cm_re=evga_1300_g2-_-17-438-011-_-Productthus the 1600 g2 1600 p2 1600 t2 are all really expensive I run 1300W DC on my 1300 g2 fine actually, but the problem is that the efficiency drop further at 100% load, which cause a higher draw than the 80% safe limit of a 15a120v circuit. The load come up to about 1480W~ which feel wasteful/troublesome to me and the surge protectors do not seem to like 1440W+ loads. By doing a bit of math, with a dual GPU solution, it is fairly easy to keep the GPU load at optimal efficiency, which would mean a draw of 1420W. No headroom for any OC, but you get a bit of psychological breathing room for not melting your wiring. I suppose if you have 20A 120V circuit this would not be a problem if you do not mind 88%~ efficiency instead of 91%~ since the power remain otherwise clean and stable. http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=349 |
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You're a brand new account and you are refusing to use protection/escrow.
Could you provide a link back from ebay to prove you are not simply trying to impersonate a ebay seller?
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***Will reuse main personal trade thread, now that this has become my main interest over Antminer S5.***
I'm interested in buying;
-Antminer S7
-Antminer S7 Coupon
-Avalon6
I'd buy from anywhere.
However if the units are already in Canada, it may be possible to come up with a mutually better deal since we can shave off some shipping and avoid another Import tax.
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Last Active: December 26, 2015, 07:47:12 PM And I already got the answer from I don't care. Buy from someone else. I agree to use Escrow under my terms and who I chose, that's my right, and you're still complaining? Actually, i accepted your terms and you canceled our trade at the last minute, after i acquired the BTC you wanted. I then offered to pay you more, even though you had already agreed and you replied with "Oh i'm selling them to someone else." I then replied "I understand why people are leaving you red trust now." And you then threatened to leave me Red trust, while i absolutely had no interest in creating a red feedback. So i left you a neutral feedback. You may not be a scammer, but you sure act exactly like one. |
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