Sorry for the repeated question SP TECH, but I need to make a decision.
I have 208V power (three phase 460 transformed to 208V). Your post about SP30 having a programmed cutoff at 210, is that a hard number? Will 208V see lower results? If so, how much lower? I can re-tap each of the transformer windings to get it up to 220V, but there is a cost to that and I need to figure out if it is worth it.
Zvisha will reply on Sunday. |
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We're compensating you for a unit down time. We'll replace your hosted unit with another units early next week, after production. One of your unit has issues. |
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Beat me to it!  I've learned something new today. |
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zvi JUST said hes off for a 3 day break vacation, that isnt what i call 'all hands on deck'
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Zvisha will be online during his short 3 days vacation. Remo is available as well. We're producing and shipping every day. |
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Collider, jtoomim, Roadsress or anyone with the early machines:
Please post your statistics and whether you achieved sustained ~4.5TH at 208-220V (please post your voltage) and what was the speed at 110/120V if applicable (I assume 4.1Th). Thanks.
I'm getting just under 4.4Th/s @ 205v/205v Input temp is 19C Hoping to tweak a little more and get it up to 4.5, any suggestions (other than what ive already read in this thread, and tried)? Please contact zvi@ for a possible tweaking. Zvisha is still tuning the firmware. |
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Where did it come from? Sp30s?
No. It's BitFury. Do you KNOW it's BitFury or speculating? I know. |
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Where did it come from? Sp30s?
No. It's BitFury. |
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SP30's ASICs (RockerBox):  |
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They can turn them all on at once. It's about having the power and cooling ready as much as the hardware. If the data center was setting up the power and cooling while the machines were being installed, then it could all come up at once. But realistically the hash rate is just based on the coins found over X amount of time. So until you get a longer period of time, you don't know if you're looking at luck or real hash.
I wonder if these data centers are really profitable for Bitfury. They add more hash, but then raise the difficulty on themselves and their other data centers. As folks like Bitmain continue to sell container ships full of miners, it makes massive deployments questionably profitable because of the work towards deploying such an outfit. The home miner doesn't pay a staff, doesn't pay to rent a facility (At least it isn't calculated into their mining profits), doesn't pay for installation equipment, etc. The home miner is at a big advantage and will eventually erode the data center's profits regardless of where they are located simply because the data center needs to pay a staff, and the organization itself needs to pay a salary to its people. Where as the home miner only pays attention to their price per kwh. A staff and rent is going to be much higher than whatever power advantage they are going to get out in Iceland on price. Not to mention they have to pay for all their engineering and next generation engineering.
In the short term, they will earn some coins, but over the long haul, unless they plan to keep those coins and speculate, it's likely they will go out of business. And one day the difficulty will drop down a few percentage points.
BitmainTech contribution to the hash-rate is insignificant compare to BitFury and Innosilicon. BitFury builds extremely cheap DCs. They're ruthless in their effort to achieve 80% of the network (40% self-mine, 40% sell of miners and contracts). The only good thing I can say about them, is that they don't constantly convert like KNC. When they do convert, they're doing it off the exchanges. |
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There are basically two scenarios I can think of why they would set them up in stages, test them on a couple of pools, take them down to test the next bulk and the switch them on bulk by bulk. However, none of these scenarios looks good for BitFury in the long term....
June 18 - June 29 was BitFury Georgian DC. 20MW deployment in 1.5 months. They've started in mid May. What we see now is what George Kikvadze calls "Summer Surprise". It's their Icelandic DC. I believe we can expect a continues cadence of 20 PH/s from BitFury every 2 months. |
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Even if it's a single DC deploying 20PH+, certainly they would do it in stages, no? Do you really think they spend weeks setting up and then flip the master-breaker and BOOM, 20PHs?
No. But I do know that their logistic can do 20 metric tons of equipment per day. |
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Aaarghh... anybody noticed the rise of the hash rate during the last 24 hours. This is really frightening. Spondoolies: Could you please make sure that September starts tomorrow :-)
Looks like someone was waiting for the difficulty change before turning on a few PH Part of it could be statistical variance. We can wait until 2-3 days before the next change and discuss this, as anything right now would be pure speculation. It's another BitFury DC, this time in Iceland. They're keeping their 2 months cadence for massive deployment. |
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Question about the SP30 power supplies: do the SP30 units ship with power cords, or is that up to the customer to provide? If the customer is to provide the cables, what is the plug type on the SP30 PSUs? From the images it appears to be a standard C13/C14 coupler, but can anyone confirm? I haven't been able to find that information on the website.
FAQ SP30 PSU |
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...2nd September batch can be delivered on time.
2nd September batch will be shipped in the 2nd half of September. We'll ship on time. |
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Full data, as measured by Benny today:
With Emerson PSU:
Fans: 80%
Rate: ~4.5TH
Rear 1m: 67dB
Front 1m: 63dB
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