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301  Bitcoin / Hardware / Re: [GUIDE] B's A More Ethical & Trustworthy Miner Sellers Trustworthiness Guide on: April 28, 2015, 06:39:18 PM
This should come as no surprise, trouble is, several people saw this opportunity a long time ago so they're way behind the curve.

Its a shame that individuals will lose out but it was inevitable if you chose to effectively finance companies that didn't care about the little guy by buying their products.
302  Bitcoin / Hardware / Re: [ANN] Sfards: SF3301 Tapeout Complete [Updated 10/3/15] on: April 03, 2015, 09:24:35 PM
They've still done nothing wrong.

Granted, they could have gone about things a better way but their minds may be focused on what happens when they get their prototypes in a few weeks. This just shows how much people will read into things, I couldn't give a rat's arse if they put up pictures of miming rigs, tulips or hyenas, as long as they give technological information that stands up.

So come on guys, what about some provisional data and stop this thread getting any longer?
303  Bitcoin / Hardware / Re: [ANN] Sfards: SF3301 Tapeout Complete [Updated 10/3/15] on: April 03, 2015, 08:55:30 AM

I have to say that showing random photos of the insides of various industrial plants plus one of a 4" wafer does nothing to demomstrate their technology, nor does a bunch of graphs with headings like "Consumer Price Index", "Population Growth" and so on.

Sure, it's just space filler but it might have been better just to put 'under construction'.

Oh, and by the way guys, no one EVER said that Scrypt couldn't be "asic'd", any decent electronics designer could clearly deduce that it could and would at some point if it was commercially viable.
304  Alternate cryptocurrencies / Mining (Altcoins) / Re: Alpha Technology Litecoin (Scrypt) ASIC Miner Order Batch 1 Now! on: April 02, 2015, 06:06:56 PM
Sorry, forgot to add, the reason that you can apply for their liquidation is that if they are unable to pay their debts, the company is INSOLVENT and so should cease trading
305  Alternate cryptocurrencies / Mining (Altcoins) / Re: Alpha Technology Litecoin (Scrypt) ASIC Miner Order Batch 1 Now! on: April 02, 2015, 05:59:30 PM
Hello all,

Came to this thread by accident. I've not read through it all but what I have read makes me very angry, so I'd just like to introduced you to a little known legal tool in the UK called a 'Statutory Demand' which is way of demanding payment of monies owed to you by a company, whether it's an individual or a limited company (US corporation), This is the government website link:

https://www.gov.uk/statutory-demands/overview

It was really designed as a way of one company forcing a debtor to pay up, it's not used an awful lot and almost never by individuals, but that doesn't mean that individuals can't use it. It doesn't cost anything except the cost of registered or recorded delivery post to 'serve' it on the company in question.

Now here's the killer:

Even if your claim may rest on soemwhat shaky ground in terms of Alpha's T's & C's, you can still put in your claim and:

LEGALLY THEY MUST RESPOND TO YOUR CLAIM WITHIN 21 DAYS. IF THEY DON'T THEN YOU CAN ENTER A PETITION TO WIND UP (LIQUIDATE) THEIR COMPANY

Now one person doing it will just be a nuisance to them, but 100? or 1000? They don't have the option to ignore any one of you, because you might be the one that petitions for liquidation! This is not in any way similar to a small claims action, that takes place  in a court before a judge (or sheriff in Scotland) and each claimant has to pay court fees to lodge their claim. 'Class action' cases' are difficult to bring before UK courts.

The key here is mass action, one individual demand won't cut it.

I'm pretty sure that there will be some of you that live in the UK to coordinate this if you go down this road. What might be advantageous to you
all is to write (NOT EMAIL) to Alpha and demand your money back (on the basis that you haven't got the product or refund you were promised) giving the 7 days to do so. It can be 'served' by recorded delivery post, about £1.80 in the UK. They will likely ignore you or send out a standard letter, it doesn't really matter what they say, your DEMAND is what they ultimately have to answer, the 7 day letter merely reinforces your Statutory Demand.

This is not driven by consumer law, that's why it's so sneaky!

If nothing else it will force them to do something. Everyone's claim will be different so they won't be able to get away with a standard letter, there is too much risk that a court will accept a petition for liquidation if they do this. If they get liquidated yes, you may lose your money bus as a creditor you have rights and that includes forcing the liquidator to bring the company directors to account, and perhaps even asking for criminal action to be taken against them if they have behaved fraudulently. It does happen regularly, believe it or not.

Hope you all get a result of some kind!

I'm not familiar with all that's gone before here but I think this is worth looking into.

If Alpha's people are reading this then they might want to consider telling you the truth about what they've done with your money and try to find a resolution. Directors have statutory duties in the UK to protect monies they are given either as investment or payment for goods, They can be jailed if it's found that they did not exercise due care in protecting those monies and spent them on their personal enrichment. Think on.
306  Bitcoin / Hardware / Re: [ANN] Sfards: SF3301 Tapeout Complete [Updated 10/3/15] on: April 02, 2015, 04:58:08 PM
At the end of the day, all they have done is tell the forum members that they have taped out their chip. They are not asking for your money nor are they promising something that they may not be able to deliver, sounds like good engineering practice to me.

They have done absolutely nothing wrong or underhand except share information on their plans. Whether you like their plans or not, at least they have given an indication of where they are planning to go. Personally, I don't think what they are doing is particularly cost effective but I do hope that they make it and that it works.

What they have done is encourage some debate, which is never a bad thing. I'm pretty sure that if they want to sell you something then they'll give out all the information you need.
307  Bitcoin / Hardware / Re: [ANN] Sfards: SF3301 Tapeout Complete [Updated 10/3/15] on: March 30, 2015, 09:22:21 PM
How can you determine that without knowing the specifications of scypt mode only, sha256 mode only and combined?

Both are fixed algorithms. If you are familiar with silicon design you can accurately determine how many times each gate/transistor in an engine stage switches in one arithmetic cycle. Knowing roughly how much power that consumes based on the characteristics of the process node - and looks from the initial power figures quoted that it's still a good 'ol fashioned 28nm straight gate based design - then it's very easy to get a good approximation of the power consumed. It's also very easy to calculate the power of the embedded DRAM blocks. Try it and see.

Good info there ..... certainly above my paygrade and have no intention of pretending otherwise, unlike the usual suspects, but interesting nevertheless.

You don't give yourself enough credit, the best technologists are the ones that realise they don't have a piece of knowledge instead of bullshitting that they are an expert. Then they go and learn about it. Silicon design and power estimation are defined by fairly simple mathematics and physics, and for anyone with an inquiring mind, a desire to learn and a bit of patience, it's easy to learn the basics.

Particle physics? That's a whole different ballgame!
308  Bitcoin / Hardware / Re: [ANN] Sfards: SF3301 Tapeout Complete [Updated 10/3/15] on: March 30, 2015, 01:49:18 PM
Dual mining technologies on a single chip is not a good idea, there are almost no common parts between the two hashing engines, the silicon for the scrypt engine is a waste of space unless LTC price goes up considerably. Also, the scrypt engine will be relatively power hungry.

...As for SFARDS I wish them good luck with their chip, especially with routing it.
i agree. There's very little real benefit to this compared to simply having seperate sha256 and scrypt mining devices. pretty sure whatever gridseeds are still in use are 100% dedicated to BTC at this point.

I believe the sentiment this time around is that it allows one set of hardware, one set of investments and one setup to swap algorithms as profitability shifts. With a flatter difficulty, each generation *should* be installed longer. Last time it didn't really work because almost immediately the sha256 side wasn't competitive / wasn't worth the cooling hassle compared to the profitability of the scrypt side.

Its hard for us to comment this time around without knowing the exact specs of the 3 modes and the arrangement of the hardware.

Us? Do you think you're Queen Victoria?

Seriously, do the maths and you'll see exactly why this configuration is a very bad idea. If you can make any such arrangement work, then there's something seriously wrong in your calculations.

If you need any help, just post here.

How can you determine that without knowing the specifications of scypt mode only, sha256 mode only and combined?

Both are fixed algorithms. If you are familiar with silicon design you can accurately determine how many times each gate/transistor in an engine stage switches in one arithmetic cycle. Knowing roughly how much power that consumes based on the characteristics of the process node - and looks from the initial power figures quoted that it's still a good 'ol fashioned 28nm straight gate based design - then it's very easy to get a good approximation of the power consumed. It's also very easy to calculate the power of the embedded DRAM blocks. Try it and see.
309  Bitcoin / Hardware / Re: [ANN] Sfards: SF3301 Tapeout Complete [Updated 10/3/15] on: March 30, 2015, 06:39:19 AM
Dual mining technologies on a single chip is not a good idea, there are almost no common parts between the two hashing engines, the silicon for the scrypt engine is a waste of space unless LTC price goes up considerably. Also, the scrypt engine will be relatively power hungry.

...As for SFARDS I wish them good luck with their chip, especially with routing it.
i agree. There's very little real benefit to this compared to simply having seperate sha256 and scrypt mining devices. pretty sure whatever gridseeds are still in use are 100% dedicated to BTC at this point.

I believe the sentiment this time around is that it allows one set of hardware, one set of investments and one setup to swap algorithms as profitability shifts. With a flatter difficulty, each generation *should* be installed longer. Last time it didn't really work because almost immediately the sha256 side wasn't competitive / wasn't worth the cooling hassle compared to the profitability of the scrypt side.

Its hard for us to comment this time around without knowing the exact specs of the 3 modes and the arrangement of the hardware.

Us? Do you think you're Queen Victoria?

Seriously, do the maths and you'll see exactly why this configuration is a very bad idea. If you can make any such arrangement work, then there's something seriously wrong in your calculations.

If you need any help, just post here.
310  Bitcoin / Hardware / Re: [ANN] Sfards: SF3301 Tapeout Complete [Updated 10/3/15] on: March 28, 2015, 11:11:29 PM
Dual mining technologies on a single chip is not a good idea, there are almost no common parts between the two hashing engines, the silicon for the scrypt engine is a waste of space unless LTC price goes up considerably. Also, the scrypt engine will be relatively power hungry.

For those of you unfamiliar with scrypt physical implementation please read this excellent article by Alpha Technology:

https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CCEQFjAA&url=https%3A%2F%2Falpha-t.net%2Fwp-content%2Fuploads%2F2013%2F11%2FAlpha-Technology-Scrypt-Analysis-on-FPGA-proof-of-concept.pdf&ei=ljMXVarbNJHaaIH-gZAB&usg=AFQjCNG9nKGtWnMgUeKH2mHZclPgyOxKIw&bvm=bv.89381419,d.d2s

It was for an FPGA implementation but it shows very clearly the arithmetic, logic and memory processes. In particular, have a look at the last part that shows hashrate against frequency for a single engine. Factor in the power requirement on a 28nm implementation and you'll see exactly why it's a bad idea right now.

Yes, I know Alpha has it's problems but I always respect any company that freely publishes knowledge for the benefit of others.

As for SFARDS I wish them good luck with their chip, especially with routing it.
311  Economy / Service Discussion / Re: The market's most affordable hashing power website on: March 28, 2015, 08:06:34 PM
Hey!

There's a website offering 60GH/s contracts for just 0.8 bitcoins  Shocked

http://dediminers.co.uk/index.php?route=product/category&path=184



$3.33 per Gigahash? You're having a laugh, right? 60Gh/s at current exchange rate will earn you around $4 a month, giving you a grand total of $48 per year for your $200.

According to Joseph Bessimer, 'there's a sucker born every minute'; don't let it be you, folks.
312  Bitcoin / Hardware / Re: ASICMiner BE300S Samples Arrived, <0.2W/G Achieved at Board Level on: December 26, 2014, 08:25:18 PM
BitcoinBrothers out of Germany claimed in November this year to have an ASIC based on a 16nm 3D finFET and have plans to unleash 300-400 PH onto the network in Q1 2015.   They also claim each of their 6 PH machines will consume 0.9 MW.  So using your initial assumption, it appears they are poised take a little more than 50% of the network (assuming they add 300 PH) using only 45 MW.
 I haven't dug very deeply into this claim but they seem to be echoing the claims of KNCminer as far as the 16nm 3D finFET based ASIC.  I haven't seen power consumption estimates from KNC however.  

Not sure where (electricity rate) they plan to drop their bomb, but the numbers you have posted put their power consumption at 0.15W/G.

Official claims we have (also from my internal report):

- Spondoolies Tech 0.05W/G mid 2015
- KnCMiner 16nm 0.07W/G early 2015
- Cointerra 16nm 5X (?) Q1 2015 (5X refers to their TerraMiner IV I guess)
- Bitfury sub-0.1J/G mid-year 2015

Not sure what to put on the Chinese ASIC manufacturers when it comes to official claims (Bitmain, Avalon, InnoSilicon, who else is significant or still in business?).

The above figures are all somewhat speculative, there is nothing remotely close to them currently on sale, and anything that does come out is likely to  be running deep sub threshold, so you'll need 2 or 3 times as many chips to get competitive hash rates per unit area of silicon. This is clearly what AM have done, same as Bitfury. It's not new or 'experimental', companies have been doing this for years.

The only one that looks realistic (in both term of power consumption and silicon efficiency) is Cointerra's of 0.225 W/(GH/sec). KNC's is pure fantasy and Spondoolies said they would aim for their figure. I'm sure they'll get there but I'm also sure they'll be honest about how they did it ......




313  Bitcoin / Mining speculation / Re: Dogecoin creator states Bitcoin can be taken down by a raid on mining farms on: December 05, 2014, 11:04:24 PM
Why are you guys even dignifying this comment by posting about it?
314  Bitcoin / Mining speculation / Re: Growth of Bitcoin Mining Network slows to 0.5% per day. on: November 30, 2014, 09:03:04 PM
I haven't heard of any new miners being ready for a Q2 release, is this speculation or known?

Well, some of it is known as asic manufacturers are busy announcing new devices in 16nm for 2015, but their expectations of performance are mostly pure fantasy. However, that won't stop the network hashrate growing rapidly as more capital is put into building bigger and bigger farms.

Trust me on this, there are monsters lurking in the wings; expect network hashrate of 1200PH by June 2015, even with Btc at $350.
It doesn't matter if the performance/efficiency expectations are met as long as the devices can achieve greater efficiency then the overall network the difficulty will rise.

A hashrate of 1200 PHs would only represent ~a 4x increase from where we are now. I believe it was early this year when the difficulty was under a billion and it is now over 40 billion (or a 40x increase in the hashrate/difficulty). If your prediction turns out to be true then the difficulty will have slowed substantially between now and June 2015

In historic terms you're absolutely right but for a miner, home or professional, to simply stay the same means that they would need 4x as much hashing power at the same electricity cost. 16nm won't deliver anywhere near that, against a 28nm design at best it'll give twice the density at 50% power reduction, ie a performance gain of 2. Trouble is, the silicon costs 2.5 times as much and the NRE/development costs are about 4 times as much and someone has to pay them.
315  Bitcoin / Mining speculation / Re: Growth of Bitcoin Mining Network slows to 0.5% per day. on: November 29, 2014, 07:02:49 PM
I haven't heard of any new miners being ready for a Q2 release, is this speculation or known?

Well, some of it is known as asic manufacturers are busy announcing new devices in 16nm for 2015, but their expectations of performance are mostly pure fantasy. However, that won't stop the network hashrate growing rapidly as more capital is put into building bigger and bigger farms.

Trust me on this, there are monsters lurking in the wings; expect network hashrate of 1200PH by June 2015, even with Btc at $350.
316  Bitcoin / Mining speculation / Re: KnC's new Solar chip to obsolete all current ASICs - an end to mining diversity? on: November 27, 2014, 08:12:16 PM
There are custom devices that exist in 28nm that can easily beat this figure by a significant margin, so I think they may well be spending a lot of money on something that is already way behind the curve.
Or not. How are they going to fund the development of this new generation of ASIC? I think costs increase with each decrease in spacing. With a halving coming in 2016, investment in breakthrough mining technology is problematic.

Good point, and that's why jumping into a largely unproven technology is not the thing to do. All the industry pundits pretty much agree that it'll be 5 years at least before 16nm actually becomes cost effective against 28nm, except for those few applications where speed and density are essential. Bitcoin doesn't really fall into this because of the energy issue. At the moment, a 28nm mask set costs around $1.7 million, for a 16nm one it's about $7.5-8.5 million unless you're a really big customer like Qualcomm or Apple, relative to their quantities Bitcoin asic volumes are tiny.
317  Bitcoin / Mining speculation / Re: KnC's new Solar chip to obsolete all current ASICs - an end to mining diversity? on: November 27, 2014, 03:50:02 PM
So I know KnC isn't a popular vendor around here but eventually they do tend ship a product that was somewhat close to advertised, even if late.  

If one thing is consistent about the bitcoin mining landscape is that it is always changing!  I remember sitting around with GPUs and thinking I would be soo screwed when ASICs arrived.  While that was partially true, there is still money to be made mining for those of us with cheap power and current gen ASICs ... that is until this announcement becomes real:

https://www.kncminer.com/news/news-118


Avalons started out at 10W/GH.
BFL was half that.
Antminer S1s hit 2W/GH (undervolted 1.1W/GH)
S3s are around 0.8W/GH

And while some chips are hitting around 0.6W/GH today, current generation ASICs are still within a factor of two of the power specs the S1 could achieve a year ago.

BUT with the KnC announcement they are targeting 0.07W/GH with this new 5000 core FinFET technology!

This is a big deal.  Essentially when KnC releases this chip, if it works and even hits half their estimated power efficiency, will obsolete all other ASICs instantly.

Now I know "KnC will be late" ... but IMNSHO after mining for years and "surviving" the GPU>ASIC transition, I think KnC just put the entire mining world on notice.  Let's just hope this triggers a "cat is out of the bag" moment and some of the better, more inexpensive vendors figure out how to compete.  Otherwise we might be looking at a world of Bitcoin:  brought to you by KnC!


Their figure of 0.07W/ (Gh/sec) is pure fantasy, this if simply a trick to try to put doubt into their competition's minds. Look at it this way, they had plenty of time to work some magic with their Neptune machine on 20nm, yet it's power consumption is higher than most 28nm implementations. FinFet is not some magical process with a quantum leap in terms of performance, (about 50% lower power than 28nm), so unless they've done a very clever full custom design - which I sincerely doubt they have the ability to do - then the 0.07 is nonsense.

There are custom devices that exist in 28nm that can easily beat this figure by a significant margin, so I think they may well be spending a lot of money on something that is already way behind the curve.
318  Bitcoin / Hardware / Re: Cointerra AIRE Miner 16nm PreOrder on: November 26, 2014, 08:47:24 PM
Gentlemen,

Much though I'm sure the forum readers are enjoying seeing two members have a go at one another, your disagreement certainly confirms what most technical professional know about any kind of product evaluation - it should be carried out by properly qualified, paid third parties who have no bias in their measurement criteria and can maintain objectivity.

Unfortunately the world doesn't always work that way, but I for one have always found it rather unsettling that mining rig manufacturers find it necessary to submit products to forum member(s) for evaluation - and hopefully endorsement. It's unprofessional and exemplifies the amateur attitude  of most of the rig companies. There are plenty of companies they could go to and pay to get a proper engineering evaluation done, and the results might be surprising as there would be no biases.

Look at the car market - you get dyed in the wool journalists who will never criticise their favourite manufacturer, even if they make a real dog. On UK TV we have a program called Top Gear hosted by a obnoxious oaf called Jeremy Clarkson who will never, ever admit that anyone can make a better sportscar than Ferrari, despite clear evidence to the contrary. They (Ferrari ) treat him like royalty, and he repays them in spades.

At the opposite end of the spectrum, the bias shown to Cointerra in the forums, admittedly mostly due to their previously appalling customer service, means that probably they'll never again get a truly objective view taken of their business by any forum member.

Objectivity goes out the window in both these cases, and that's why product evaluations and comparisons should be done by independents like the UK's Which? organisation or JD Power, leaving technical testing to properly qualified, independent experts.

Aerobatic has never tried to hide his investment in Cointerra and probably feels that they have been unfairly criticised. He's a very articulate and clearly thoughtful person who believes the in the company and was willing to put his hand in his pocket as a result. I personally enjoy reading his input to the forums and if he's complaining about something it's usually for good reasons.
319  Bitcoin / Mining speculation / Re: KnCMiner unveils plans and specs for new "Solar" ASIC chips on: November 19, 2014, 09:25:25 PM
Quote
KnCMiner has annouced that it will launch deployment of its "Solar" line of chips in Q1 2015.

Based in Sweden, KnCMiner has indicated that its new chip will have a 16 nm process, which represents an improvement over the 20 nm process which was used in the Neptune.

KnCMiner was first to market with a 20nm process with the Neptune, which achieved an efficiency of 0.7 W per Gh/s.

If a 20 nm process can achieve an efficiency of 0.7 W per Gh/s, then what do you think the Solar line of chips can achieve? Well, if sources at KNC are to be believed, a ten-fold improvement is to be had at 0.07 W per Gh/s.

In other words, a 1.4 KW miner which could run from your 15 amp home outlet could hash at a rate of 20 TH/s. Yikes!

The technology which enables this leap in efficiency is called FinFET which allows chip designers to scupt transistors in 3D, instead of the standard planar modeling.

The Solar ASIC, which features 5000 cores, has yet to go into full production. Whether the Solar manufacturing rollout goes smoothly or whether it will be plagued by manufacturing issues like those which sunk manufacturer Hashfast remains open question. Time will tell.

Source: http://www.asicspace.com/blog/knc-miner-solar-chips
W

The key line here is "if sources at KNC are to be believed", and if you feel that they can be trusted then that's a personal decision, since they don't plan on selling any then you'll never know whether this is horseshit or not. Might frighten their competition though, but going on KNC's past record for efficiency I wouldn't worry too much if I was them, Spondoolie's 28nm design easily outperforms their 20nm one. Cointerra's figures are much more believable, although they are rather on the high side.

What is fact is that moving to 16nm Finfet from 20nm does NOT give you a 10 fold decrease in power consumption, even with 3D transistors. What is fact is that there are physical solutions in 28nm that can better their figure with good 'ol 2D transistors - translating to 0.034 W / (Gh/sec) in 16nm.

So there's something for the "sources at KNC" to consider.

Incidentally, why the 5000 cores guys? Got something against working in powers of 2 or is the yield expected to be so bad that 20% of your cores are unusable?
320  Bitcoin / Mining speculation / Re: 1 possibility for whats next on: October 25, 2014, 07:43:25 PM
Copper is popular, reasonably cheap and works very well. It's easy to recycle and can be done so almost indefinitely, it will be around for a long time to come.
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