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I'd be interested in 2 or 3 depending on the price and model.
Whatsminer m20, or Avalon 1066 would be my preference. $3000 for 50TH seems a bit too much.
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Added details and photos for the last two Asus 1080s.  |
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What about delivery and is it possible to transfer money using a card.
USPS, UPS or FedEx, your choice. USPS Priority Mail is probably the most economical. I can ship within 1 day. Package will be about 12"x15"x6" and weighs 5 lbs. Ships from zipcode 02494. I'll take payment in BTC or LTC. |
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More $ to Ebay and Paypal  .... Asus 1080 sold (for 369 + shipping!). The 1070 will go on Ebay soon. 2 More 1080s to test and photograph .... hopefully tonight. Same deal, $290 + shipping + escrow. |
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That would make sense since the those #s give the same efficiency as the a1041. Question is will the $/TH be lower than the a1041.
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There is a price per kwatt that the a1041 is just as good on low speed as top speed.
There is not one on the whatsminer m21s.
If someone wants to play with numbers to show the right price per kwatt. It would be nice.
Right around $0.10 per KWh. |
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... That price jump pretty much dropped us in November 2017 - Gear several generations old is now profitable again, and there isn't enough new gear available right now. Now manufacturers are scrambling to ramp up production, which costs a lot and they had just been selling gear at a steal. So they know people want it and are just dangling out everything they have, which probably includes gear reserved for warranty repair/replacement, charging in the irrational realm because someone will pay it.
I'm curious to see how many of these pre-orders arrive on time.
Very interesting. This seems to be right up Bitmain's alley ... They are probably ramping up production of their next-gen miner now and will flood the market with it all at once at a price their competition can't come close to competing with. If they released a huge batch of high efficiency miners at a low enough price, could they force the difficulty high enough to make the s9s unprofitable? Wouldn't that be in their interest, since it would force the farms to buy new miners to replace all their s9s? |
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The Asus 1080 is now on ebay, offer is still good here until it sells.
I also have 2 more of the Asus 1080s available at the same price, I'll update the original post with photos after I've tested them out.
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well if btc goes up my 900th will be okay. It will earn a lot.
buying gear now is most certainly stupid for me to do.
The bull is too occupied to do a full bull run as
The bull is busy getting laid as the asic companies are fucking everyone over.
The asic companies are trying to squeeze every last drop out of that bull far before it is ready to pop.
But as I said all spec on my part.
I wouldn't call those last couple statements speculation.... that seems to be the only thing you can 100% count on. |
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Updated the 1070 Photos. I'll give it another couple days then off to ebay again...
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iv found they dont really have a minimum voltage they just do what they do and send out 12v (mine do 12.1, 12.4 and a 12.3) even when batterys just at 12v they just dont do anything and pass the 12v through but its a risk im happy to take
Interesting, they may just stop regulating once the input gets below a certain point with the output transistor just continually turned on. Now that you've peaked my interest I might have to buy one to play around with. |
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You might be better off trying to use wind power if you can. We don't often go below 10 or 20 miles per hour here and if there's enough space for the solar panels, there should be enough space for the turbines too...
If you're going with solar panels, there are calculators as the others have siad that allow you to estimate how much power you're going to need.
If you're interested in upgrading an antminer S1-S5 then you might be fine with 300W, if not then you MAY need a better inverter, if the inverter is that low you might face issues with the batteries not being charged very well and them being drained extremely quickly (which may cause them to overheat or something if they're only getting a tiny amount in and it is immediatley getting taken out). If you can put up the funds, a 2000W inverter is about £200 on amazon. You might also have to account for the fact that we get 6 hours of sunlight in the winter and 16-18 hours in the summer per day.
dont think youd need an inverter at all if you can use a regulator he can go from 12v batter (14.4v at charge) straight to the miner (12v) and bypass both the inverter and PSU That's a good idea, but an efficient DC/DC converter would probably cost more than the inverter and PSU combined. If you could find another 12 or so 12V batteries and put them all in series, maybe you could hack the PSU to run off the DC. Don't know if any charge controllers can handle so many batteries in series though. |
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If you want to run off your battery continuously at >200W then you'll need a lot more than 300W of panels to recharge the battery during the few hours of sunlight you get in the UK.... If you do some googling you can find a solar calculator that will give you estimates of power production given your location. In my location, production in the winter months is about half of what you get in the summer months. It's probably similar in the UK.
I looked into solar a few years back here in MA, USA and got some quotes. I was discouraged to find that the cost of the system was high enough that even if you assumed that it would require no maintenance for it's 25 year expected lifetime, the power generated from it would end up costing around $0.12 per KWh. And that was with some generous tax breaks calculated in as well.
The system I got quoted consisted of 21 350W panels, so peak production of 7350W for the whole system. Their estimate for production of this system for the peak month of the year was 560KWh, or an average of only 777W. The worst month only produced 89KWh, for an average of 124W.
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Prices do not include escrow and shipping. Ships from Zip code 02494. --------------------- MSI 1070 Gaming X 8G **** SOLD Asking $250 The card is in great condition and in original packaging. I ran the FurMark burn-in test on it for 30 minutes with no issues. Both fans operate smoothly. edit: been sitting in the box under my desk since I originally posed this 1.5 years ago .... lol.         --------------------- Last 2 Asus 1080s now on ebay but offer here is still valid until it sells.
https://www.ebay.com/itm/273978520544-------------------- ** Sold on Ebay ** Asus ROG-STRIX-GTX1080-A8G-GAMING #2
Asking $290
The card is in great condition and in original packaging. Warranty is good until 12/3/2020. I ran the FurMark burn-in test on it for over an hour with no issues. All three fans operate smoothly.
https://imgur.com/a/xjDxFvJ
-------------------- ** Sold on Ebay ** Asus ROG-STRIX-GTX1080-A8G-GAMING #3
Asking $290
The card is in great condition and in original packaging. Warranty is good until 12/3/2020. I ran the FurMark burn-in test on it for 36 minutes with no issues. All three fans operate smoothly.
https://imgur.com/a/LkAhjys
-------------------- Gone ... Sold on Ebay. Asus ROG-STRIX-GTX1080-A8G-GAMING Asking $290
The card is in great condition and in original packaging. Warranty is good until 12/3/2020. I ran the FurMark burn-in test on it for 57 minutes with no issues. All three fans operate smoothly.
https://imgur.com/a/65ofBUA
Now on ebay, but offer here is still valid until it sells.
https://www.ebay.com/itm/273969675401-------------------- |
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Wow a blast from the past I had the 6870 myself
Pick one up for nostalgia's sake! |
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What is the type and capacity of the current electrical service and the BTU of the AC?
If the AC was sized for normal industrial use, your current 13 S17s are probably already using up most of it's capacity. Also figure in that if you are using AC to remove all the heat generated from the miners that it's going to use about 25% of the power used by the miners to run the AC. So for every 1000W you use on miners, you'll need to calculate (at least) an additional 250W for the AC. I think most mining operations are using large evaporative cooler setups with huge fans.
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