I would like to see how some talented guy will develop a hack which will enable this "asic boost" an all Bitmain HW all around the world...
I will not become a millionaire because of that hack, I'd just like to see what will happen then... And what will Bitmain say...
Of course all those empty blocks generated wouldn't disrupt anything at all aside from increasing the rate of diff increase...  Query: Is this ASICBOOST the same idea as the "Golden Nonce" or extra nonce operation that HF and other miners from a few years ago used? |
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This is a very exciting technology. Imagine a world of self-improving ASIC miners. A miner that finds new ways to optimize the way it works. It could potentially put massive bitcoin mining data centers out of work. I see the potential of it being like when the small USB block erupters came out. If you can do more with less space and power why wouldn't you.
ROFL...  Riiigght... Oh the Wonder of bright-eyed youth, untainted with knowledge of how their technical toys actually work... |
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I posted pictures of the 6 PCI-E version months ago in the other ebang thread. I am actually going to do some amp clamp tests to get REAL power numbers today. I will post what I find so everyone can have an accurate idea of the efficiency.
i'm waiting for this date ... i was chatting on Skype with EBIT E9 customer support ... they Told me 780$+100$ for delivery in EU eBit E9 + psu + shipment. i also ask why, with a 14nm chip, ASIC E9 is less efficient than the S9 with a 16nm chip .. if i ask too is a problem of firmware optimization .. but i have got no answer! 14/16nm for all intents and purposes are the same regarding efficiency. To date only Samsumg and Global Foundries (under license with Samsung) is producing 14nm chips and TSMC doing 16nm which is slightly easier to produce.. Intel and IBM don't count because they do not share their production fabs with outsiders. As for comparing to the s9 -- same thing as comparing a s9 to the Avalons or BitFury rigs which both use 16nm chips or even to the T9 (same chip as s9): When used in the s9 and R4 miners the design was driven to be be "highest efficiency on the planet". It worked but at the expense of the miners often being unstable/unreliable because the chips are running at bare minimum core voltage (Vcore). Same chip used in the s9/R4 is used in the T9 and so far no one has trouble with the T9. Why? Because Bitmain is using a higher Vcore which increases power usage but also make the chips more stable. Same for Avalons and BitFury and probaly EBang: Higher Vcore for more stability. Good choice to make. |
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Hey everyone I just started mining bitcoins with my brand new Antminer S7 on the Antpool. Super excited.
I was wondering if anyone knows when Antpool pays out, and how I can adjust the settings?
you joined the pool and never even looked at their payout methods??? The info is on the pool webpages: Perhaps you should read it? |
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Hey so I got my gekkoscience device to work but I want to use bfgminer not cgminer, is there anyway this could be done? I would rather all my miners work off the same program since I have my pool sites and rotation on bfgminer it would just make my life easier since cgminer keeps spaming errors because I have other miners in and they keep denying access to cgminer.
The errors are because cgminer needs to use Zadig for the USB connection. More fun comes from Luke Jr.'s USB driver in BFGminer and Zadig not playing well with each other. |
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Back on topic here, Bitmain is shipping the T9 'ship April-10' orders now. Got my UPS shipping notice yesterday  EDIT: 8:00p, just checked UPS and the miner has already left Alaska! Should be here Friday. I haven't seen a miner move that fast in months! |
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<snip>
The Bitmain APW3 supply looks ok and seems to be a reasonable price. Anyone had any issues with them? By the time I factor in getting the HP DPS1200 supply, PCIe cables and either a breakout board or time to solder the pigtails straight to the connector, the price seems to be quite good.
My current two HP power supplies were out of a decommissioned server at work, so free.
Go for the Bitmain PSU's. I used to use the HP's and yes even have a few IBM 2Kw PSU's but for the same reasons you mentioned (hassle factor) I started using the Bitmain ones soon after they came out a few years ago. Have a couple dozen of them now and zero problems ever. |
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It's nearly impossible to run into profit with this thing, ROI for the unit cost is nearly 1 year, not yet count for rents, air-con, electricity and labor cost.
For you maybe. If so, don't buy it For folks like me, it and its brethren do pay for themselves and generate profit in reasonable time just fine. |
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Sweet! Will be nice to see how it goes. Almost makes me regret giving most of my s1's to sidehack for parts... Looking at the pics looks like there is no buck regulator and the string(s) are directly fed by the PSU. Effective but of course now the only way to control the chips Vcore is by adjusting the PSU itself (not that most intended users would/could). Only real downside is that if thin PCIe cables are used the chips just have to live with the reduced voltage out of them. |
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I'll see about grabbing it and putting it on my Imgur act. The direct search link was several lines long  Here ya go: The Single  Innards of a Jala` Cube  |
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Well, you could always do something like folks did with BFL Singles... LOT's of airflow there & look pretty cool ta'boot. |
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Did you wait a few minutes? The miners have a pre-heat cycle and then restart again. Total time before real hashing starts can be around 5min.
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I don't think crossing the rails will do anything. Read Many PSUs that have "multiple 12v rails" in fact only have one supply circuit, with multiple over-current/short-circuit protection channels. To find out what your PSUs has, connect an ohm-meter between the two 12v rails that you want to connect together (with the PSU off, of course). If it reads a low resistance (like <2 ohms), they are connected together inside the PSU, and the PSU shouldn't know any different if you connect them together externally.
Now let me explain why PSUs have multiple 12v rails. As CPUs and GPUs have become more hungry for 12v power, the amperage that PSUs must be able to supply has increased. The problem is that the individual 12v output wires aren't very thick, and now, a PSU capable of 50A on the 12v rail could present a fire hazard if one of the cables got shorted (or overloaded), since a single wire may not be strong enough to trip the PSU, and will certainly overload long before the PSU does. So the multiple "rails" on many cheaper PSUs are really there only for safety, rather than anything to do with isolation or providing extra power.
So, when connecting 12v rails together, you would be circumventing this protection—which should be OK if you know what you are doing and there is no chance of a single 12v wire being treated differently than the others. The key word in ^^ is "Many". Unless you can confirm that the 12v comes from 1 regulator - don't do it! They will fight each other and eventually 1 or both rails will fail. Over the years I have come across many high power ATX PSU's that DO use independent rails. The better ones will spell out if they use a single rail. Of course the BEST solution is to use server PSU's from Sidehack or others here or Bitmain's. I've been running Bitmain's APW1600's for years with zero issues. |
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Don't be. 95C is just fine. As said elsewhere, if temps get to around 105C - then - I would be uncomfortable with it.
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Pleas do note that the 1,200w applies to TOTAL output of all rails including the 5v and 3.3v ones. The 12v rail is rated for 84A = 1kw. |
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^^ Eeep. If that is what it has bet the 2 rails got tied together feeding 1 card....
Very fast way to kill a PSU and has been well covered throughout all miner threads...
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^^ Yes, that would explain it.
Query: The PSU that was tied to it, was it new or has it been used on other miners? Reason asked is because sockets/pins (mainly the sockets) wear out rather fast - not from time but from being plugged/unplugged. Even top-grade gold or silver plated contacts cannot not be plugged/unplugged more than a couple dozen times before they start showing increased contact resistance.
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You did read the last 2 paragraphs right? Here's the first one: If only this had been written on a different day than April’s fools. In truth, bitcoin is more divided than it has ever been. Revolting political censorship continues to be applied. The hashpower may soon fork despite the objection of some Blockstream employees. Eth is nearing a $5 billion market cap with its transaction numbers nearing 100,000 a day. Even litecoin, that boring forgotten thing, is moving. The last para starts with stronger reference to what today is: April 1st, eg. April Fool's Day.... |
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From the view of an Engineer well versed in power systems, seeing just that one PCIe connector burnt is highly suspicious.
Either:
A) The board was powered by just that one connector. If so, of course it fried...
B) Very bad sockets in the PCIe cable feeding it. I do see that there is no solder fillet around the pins where they join the board. I will assume that there is good solder on the backside. Lack of a bead on top is not good but not conclusive.
One problem with "B" -- if all 3 connectors were being used, the other 2 should have picked up the slack resulting from the poor connections. Remember: All 3 of the PCIe connectors are in parallel. In no way could there have been enough current through them (bad connections) to burn it and the 2 good connectors show no signs of overload at all eg, turning brown.
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Even more curious. Just checked the detailed Awesome Miner log for my 2x s9's and 2x R4's at home and only 1 R4 shows a blip for the issue. I'll have to check the log at work to see if it's the same. Again, only 1 s7 at work lost connection long enough to start beeping so problem is restricted to the controllers (both are Avalon's) and in my case at work, possibly running 721 and 741's on same Pi. Different chains but 1 Pi.
EDIT: 8:50p EST, looks like the 741 at work has finally gotten up to full speed. Considering how long it took using 721's and 741's together vs each type on its own controller bet thass the reason. TBC in the Avalon thread.
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