Search content
Sort by

Showing 20 of 575 results by alfabitcoin
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 17/09/2014, 09:03:24 UTC
Guess some people never heard about remote access. You can access X-1 remotely and don't need to have it on hand. Figure the rest if you are so good at assigning titles.

you just said you did not receive your order.  first posts says you tested X-3's.  

" all X-3 i tested were running for week without performance drop and above 1TH/S per case"

so you access remotely X-1 or you test X-3's?  

I don't need to figure the rest.  you have said it for me.  you work there and post here to insult customers.  this makes you shill.

or you do not work there, which makes you liar, for you do not test X-3's if not working there.

again, I do not care which, a shill or liar.  but I think both maybe.  


Get a job, you have to much time to think, and to answer your own questions. "CUSTOMER" Both are accessible remotely through SSH, and testing does not mean owning it, omg your logic is brilliant, as i said i am done wasting time, shrug rust of off your brain and think about the rest.
So you are a customer of ba who also test miners remotey for them, (among other work) for what, money? You are paid from ba, that alone makes you biased.
Come on now, be honest.

Post
Topic
Board Hardware
Re: Black Arrow announces 28nm 100Ghash Bitcoin ASIC under $1.99/Ghash
by
alfabitcoin
on 09/09/2014, 21:14:57 UTC
We wish we would be able to do that but the silicon is not this cheap. The only way we could sell 2th @ $1000 would be to loose money on each miner "sold".

Care to give some more insights in to the cost structure?

For the asic, allow me to make a guestimate based on cointerra's specs.
3 100mm² dies in a package yields 502-720 GH /chip
Lets go with the low estimate gives 166GH per die.

A 300mm wafer yields ~600 10x10mm² candidates or 100TH (at 100% yield).  AFAIK, processed 28nm wafer cost less than  $4000 in volume. Low volume runs may add significantly to that, if you have to go through to an intermediary.
Let be generous and for easy math put it $10,000 per wafer if you include yield, slicing, packaging, handling,.. thats ~$100/TH.

Now thats only silicon cost, excluding NRE and of course there are other costs, like PCB, assembly, housing, cooling, PSU, etc, but I find it hard to understand how over time, you would not be able to sell at (much)  less than $500/TH. Am I way off in my silicon cost estimate?  Or what else is so expensive? PCBs?


So manufacturer price per asic chip is ~10$

How about packaging? And NRE?

Sure, NRE as stated is excluded, but slicing, packaging etc is not. still that can price up only a small amount.
Fact is that chips alone cost less then ~15$ ( with nre) and you had and have huge profit margin. Fur sure you can do a (partial) refund.
And if any third party made mistake then they should conpesate the future cost and not to be paid for mistakes over and over without any responsibility. You do have contracts with them dont you?
You just do not want to do a right thing and refund. Or name the third party involved so we can investigate ourselves.

Edit
And by all means, you would deserve such a huge profit margins if you delivered working miners on time or with slight delay.
Now is evident you are failed and still want to keep all that profit and giving nada in return.
If Iam wrong then please, provide some documents, inovices etc to back up your claims.
Post
Topic
Board Hardware
Re: Black Arrow announces 28nm 100Ghash Bitcoin ASIC under $1.99/Ghash
by
alfabitcoin
on 09/09/2014, 18:36:10 UTC
We wish we would be able to do that but the silicon is not this cheap. The only way we could sell 2th @ $1000 would be to loose money on each miner "sold".

Care to give some more insights in to the cost structure?

For the asic, allow me to make a guestimate based on cointerra's specs.
3 100mm² dies in a package yields 502-720 GH /chip
Lets go with the low estimate gives 166GH per die.

A 300mm wafer yields ~600 10x10mm² candidates or 100TH (at 100% yield).  AFAIK, processed 28nm wafer cost less than  $4000 in volume. Low volume runs may add significantly to that, if you have to go through to an intermediary.
Let be generous and for easy math put it $10,000 per wafer if you include yield, slicing, packaging, handling,.. thats ~$100/TH.

Now thats only silicon cost, excluding NRE and of course there are other costs, like PCB, assembly, housing, cooling, PSU, etc, but I find it hard to understand how over time, you would not be able to sell at (much)  less than $500/TH. Am I way off in my silicon cost estimate?  Or what else is so expensive? PCBs?


So manufacturer price per asic chip is ~10$
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 03/09/2014, 12:50:15 UTC
Cendav posted image.

http://imgur.com/8Oq1KWJ

Notice "ok" written on the board. Ok my ass!
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 03/09/2014, 02:57:36 UTC
Another excuse, BA how lame!!



ugabuga, on 02 Sept 2014 - 6:44 PM, said:
 
I'm confused .... after all the "stuff that did not explode" after all, explodes Huh?
 
can someone explain?

.............................
 
 
On the hashboard there are no electrolytic capacitors. Everything is solid. They cannot explode with flame.
 
This 1500uF electrolytic capacitor ended on this board by mistake: We have added it while trying to debug the noise in the SPI and forgot to delete it from the BOM. By the time we got the backplanes they were already mounted. We did not think that it might be a problem and we were pushed by you (customer) to ship asap therefore we have not removed them. Removing them would have caused at least 1 day delay.
 
We also don't need the 470uF solid capacitors from the backplane.


That is ofcourse bullshit and they know it..
they have a huge problem on their hands cause the machine is CE certified. that means that if something happend house on fire, human electrocution and its caused by the BA miner they are responsible !!

Authorities would ask the TCD files of the miners. (Technicel Construction Dossier) if is not complete our the product did not pass certain test well you will loss your balls ....




it is absolutely bullshit.

so they had this cap that shouldn't have been on the BOM, but was.

and if they're not supposedly doing anything, why was there enough load on them to blow them and start a fire.

these guys are fucked.  these caps are likely indicative of another problem.  just putting bigger/different caps in the system doesn't solve the underlying issue of whatever caused these to fail.

are we supposed to believe that they over-rated every other part BUT the caps so we'll be fine as soon as they upgrade the caps?

BS.  this is more likely a design flaw that goes well beyond the caps.

Feel free to provide better design if you are so proficient, with analysis and free time. Why don't you get one and fix the issue? I love the people that can discuss a lot of things throw crap and stuff but cannot even make their home PC work.
Issue points only at one thing, that it has to be investigated beyond someone pointing a finger and saying "LOOK a problem!", it's like playing captain obvious.
Hope future of the technology does not depend on such people, that are able to make analysis and conclusions based on who knows what.

Good luck anyway.

@Lexx2k
Why would simonbecoinin fix and provide better design? Its not his job, its yours at BA. Take responsibillity once and stop with making lame excuses.

P.s.
And he did not concluded anything, he think its most likely design flaw.

Edit
Reading trough your previous post I concluded you work for BA. Are you? Andbyou forgot to remove the caps from the BOM because you were pressed by customers. So again, its not BA fault, its ours - customers.
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 02/09/2014, 18:36:25 UTC
Another excuse, BA how lame!!



ugabuga, on 02 Sept 2014 - 6:44 PM, said:
 
I'm confused .... after all the "stuff that did not explode" after all, explodes Huh?
 
can someone explain?

.............................
 
 
On the hashboard there are no electrolytic capacitors. Everything is solid. They cannot explode with flame.
 
This 1500uF electrolytic capacitor ended on this board by mistake: We have added it while trying to debug the noise in the SPI and forgot to delete it from the BOM. By the time we got the backplanes they were already mounted. We did not think that it might be a problem and we were pushed by you (customer) to ship asap therefore we have not removed them. Removing them would have caused at least 1 day delay.
 
We also don't need the 470uF solid capacitors from the backplane.
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 02/09/2014, 18:18:19 UTC
From ba forum


blackarrow, on 02 Sept 2014 - 5:26 PM, said:
There are 30 AMPS going through 60 pins. Each pin is rated at 2.2Amperes. I do not think the connector is the problem.
 
We agree that this is a serious concern and we are examining right now what is the best option to proceed. At this point we are no longer shipping X3 until we find the exact cause.
 

Customers that already have X3s are adviced to shut them down and wait for further instructions.
 
Post
Topic
Board Bitcoin Discussion
Re: Bitcoin and me (Hal Finney)
by
alfabitcoin
on 29/08/2014, 07:07:03 UTC
RIP Hal. Thank you.
Post
Topic
Board Hardware
Re: New Official AMT Thread
by
alfabitcoin
on 24/08/2014, 21:10:09 UTC
@perogi
Why dont you try like jorgebanilla few post back, he got the same error. Read his post on page 155
Post
Topic
Board Hardware
Re: New Official AMT Thread
by
alfabitcoin
on 23/08/2014, 00:46:35 UTC
Try with root/admin to access.
Post
Topic
Board Hardware
Re: Petition to sticky Dogies manufacturer trustworthiness guide!!
by
alfabitcoin
on 10/08/2014, 20:42:29 UTC
I think that setup guides for numerous miners on the market where dogie got free unit are in direct way of having trusworthiness guide what imo should not be sticky.
You make a very fair point.

However we are now at times where preoders will end and full scam as in begining of asic era is rare and where should be "best buy" guide for different kind of users.
What do you propose in the interim ?

I mean, certainly not sticky-ing a thread is an option, but I'm thinking, in the absence of something "community-official", we can do far worse than Doggie's best efforts to remain objective.

It's certainly a good start at the least.
I think as other stated that sticking one man opinion is mistake. Dogie guide is still good source of information what can be bumped as necessary.
I wish members with time and means should write a "best buy" guide asap.
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 10/08/2014, 20:21:44 UTC
well that makes no sense why sell it to himself?
He claim that he own only 1/3 of the miner and his friend own the rest. Later, friend wanted out but declined his offer to buy off, so he offered it on ebay.
Post
Topic
Board Hardware
Re: Petition to sticky Dogies manufacturer trustworthiness guide!!
by
alfabitcoin
on 10/08/2014, 20:11:21 UTC
I think that setup guides for numerous miners on the market where dogie got free unit are in direct way of having trusworthiness guide what imo should not be sticky.
However we are now at times where preoders will end and full scam as in begining of asic era is rare and where should be "best buy" guide for different kind of users.
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 06/08/2014, 20:11:08 UTC
The only thing I have done is expressed my negative experience with them publicly.

How did they get your personal info if you are not a customer?

I am a customer of minersource that's how they have my info. Minersource must have also told them that I purchased Bitfury boards also. I cannot believe what an absolute shit show this is. Now minersource will not contact me via telephone to discuss this situation and will only talk via email. I am absolutely outraged, MS claims that they did not violate their TOS and I never placed an order with BA directly so I guess no one is responsible...

Iam stunt by this. Blackarrow went and aproach bobsag to find who you are and post your personal info. Man, you provoced them (him) in some way for sure. Other posted worse things and negative fb then you, but  blackarrow ignore them.
Fill complaint...
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 06/08/2014, 19:39:04 UTC
Now BA is posting my personal info in my trust setting?
Do you think I have something to hide BA?
Fucking scamming lying pieces of shit.

I have absolutely nothing to hide BA. You can post my personal info here since you have already violated my privacy by selling my email address I suppose the only last thing to do is publicly share my name and shipping address for the whole world to see.
Unlike you I have worked hard over the last year and some months to build a strong positive reputation here that will not be smeared by your pitiful attempt.  

I will absolutely not remove my neg feedback now. In fact I will be posting neg feedback every day until you remove my name and address. I urge all other customers to post your experience neg or otherwise in their profile.  
I wonder what you did to ba to share your personal info? Other members left neg fb to ba with no such lame retribution.
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 29/07/2014, 23:35:30 UTC
Can buyer get shipping estimate on paid date?
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 29/07/2014, 19:48:17 UTC
OK! If you really want to make it right by your customers, then start by answering some simple questions, I will try to keep them very to the point that should require short concise answers...


Unfortunately as you are not our customer we cannot spend time to answer your questions.

I would like to point out to our customers that this individual is still trying to put subliminal messages into his replies by falsely affirming that our chips are "behind other manufacturers". Affirming this is a blatant lie. He is in no position to affirm this as he has never seen or tested our chips.





Lame ba, lame.
Post
Topic
Board Hardware
Re: Black Arrow 28nm 100Ghash Bitcoin ASIC from $0.49/GH/s
by
alfabitcoin
on 28/07/2014, 18:07:03 UTC
This thread has 369 pages for several days now. It was a lot higher.
Post
Topic
Board Hardware
Re: Black Arrow X-1 and X-3 (not modded by Black Arrow) Thread
by
alfabitcoin
on 28/07/2014, 14:13:28 UTC
My post was just deleted from the Black Arrow self-moderated thread. Posting it here:





Mate, just read what is under the links above. It seems like he has been chased by Romanian authorities for large scale fraud!

I'm glad that I've stopped at the last moment from ordering from Black Arrow. Sorry for everyone who fell victims to these serial scammers:

Quote
GOVERNMENT OF ROMANIA
On 01/14/2003, workers in DGCCOA-Brigade Bucharest, based on the information held, and a search warrant issued by the Public Prosecutor at the Court of Appeal, proceeded to carry out house searches in homes following: Sovu Alexandru Ion, 24 years old from Bucharest, sector 2; Sovu Mircea Dan, the brother mentioned above, 23 years, Bucuresti, Sector 2, both associated to a company in Bucharest; and STOENESCU LILIANA bridegroom, 32 years old from Bucharest, sector 6.

Those concerned together with RADUT Mircea, 32 years, Bucuresti, Sector 4 and Ixari Iulia Cristina 26 years old from Bucharest, sector 2, were part of a network that deals with committing computer fraud via the Internet community.

In fact, in the period 2000 - 2002, the brothers launched Sovu more orders on the Internet at online stores abroad (in particular the United States, Australia and Canada) for the purchase of goods using fraudulent card numbers Credit is not theirs, without the knowledge or authorization of the true owners. After orders have arrived in Romania about 100 parcels names and addresses accomplices, STOENESCU LILIANA bridegroom and Mircea RADUT which to raise their courier and postal offices in exchange from the brothers amounts between 300,000 and 1,000 .000 USD, depending on the contents of the package.

I seen this last year in May or July from some lancelot gb organizer with a lancelot purchase went south. BA did not want to use escrow and gb organizer was not willing to do it without regatding it was a big amount of money. Ba even post that alex sovu were their reseller in uk and hes changed man. Full story can be found in archive forum.

Then I decided that BA is a shady and can not be trusted with big amount of money. Also when they announced making own asic with preorder I voiced my concerns but they deleted it. Think ba is one guy company, outsourcing all and thus have a good chance of fuck up - that happened.

Also due statue of limitation authority can not do much about it today.
Post
Topic
Board Services
Re: klee's hacked 1170 btc, Part II
by
alfabitcoin
on 16/07/2014, 13:41:30 UTC
In another thread kee said that GoDaddy domain is irellevant Sad
I agree with full forensic inspection and to find an attack vector hacker used.
I guess that plaintex file on db had other passwords too among the wallet pass.