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Pls delete

That's a pretty cool (literally - check those temps) miner; courtesy of the slightly noisy fans, perhaps, but those could be swapped out.

Mining calculation: http://thegenesisblock.com/mining/a/cacfec10d1
Parameters: 1.05TH/s, 880W, $6200, March delivery, no ship/accessory fees, current bitcoinaverage.com rate.
Play with the figures at your own peril :)

Mining calculation as per Gator-hex: http://thegenesisblock.com/mining/a/7b217380cc
Parameters: 1.05TH/s, 880W, $4418 (current xe.net), March delivery, no ship/accessory fees, prior bitcoinaverage.com rate, difficulty increase: 48%. Price source: http://www.lketc.com/

( Something wrong? Calculator error?  Let me know, post will be adjusted. )

the hash rate will not increase in the rate as your set based on the experience last year, 28nm chip is the best you can achieve now, so it is apparently that it can mine bitcoin for you for a very long time. if the earning of this miner is not enough to pay for the power, i can not figure it out why the hash rate will increase, no person will put them money on new miner because it is no profit at all. you can see the hash rate of litecoin did not increase apparently in the last few months without the coming of asic miner  

so your chips are not coming from stolen stocks of innoslilicon?

how can we be sure that we are not buying something solen from someone?

taobao sells mining equipment? how come?

thanks for the detailed write up now we just need pricing and availability so we can start planning our buys ;)

You didn't read the detailed write-up, I guess:

I missed that part at the bottom seems a bit high I see someone on litecointalk.org trying to work a group buy for similar 1TH unit for around $5200 + Shipping costs

I have one of these arriving soon and will post my review.

And does the $1000 price premium mean it ships 48 Hrs after you pay so its ready to ship right now? $1000 extra to get it 2 weeks early  ???

I saw your Post I will watch it

I got one- Love it :)

Yeah www.lketc.com = 27000 Chinese Yuan = $4427 US Dollar, not $6200! $6200 = buy 2 get me 1 free. ;)
And difficulty increase is 46-50% per month. (19-20% every 12 days) not 63%
It might just break even then. :P

Hmmmm....

Delivery "March 10 - March 15, 2011"
Oh dang, you'll totally make profit with a 2011 delivery! ;)

Who can I throw money at to acquire one of these in relatively short order ?

you can click on the website:www.fz49.com

Try this calc
http://btcinvest.net/en/bitcoin-mining-profit-calculator.php?diff=3129573175&dcosts=6200&diff_mincrease=20&blpbtc=25&dhsmhs=1000000&diff_mincreasedecrease=5&btcusd=500&dpowcon=900&btcusd_mincrease=1&pcost=0.25&calcweeks=32&dleadtime=2&action=calc

I  can sell the miner to you at that price,if you trust me and let me host the miner locally, i will use the miner to mine for you by filling with the name of your worker and the host fee is about 250$ per month including the fee for electricity

Looks fishy!

The miner or the previous post? The miner looks legit.

Why no video of the miner to prove it is working? What is the identity of the person selling? If the device generates a good revenue, why is being (re)sold?

I have this exact miner- looks and runs well.

I have tons of pics of my own, as well as a full dump of the Pi. The language it came with was Chinese, but we have already translated it, and changed out the PHP files in the image to change to English.

http://imgur.com/a/tcimG

https://i.imgur.com/aE5SuXg.jpg?1

Could you share some of this "pictures"?

http://imgur.com/a/tcimG

http://bitmine.ch/?p=5178

Thank you.

OP offer now looks less fishy.

Are you taking orders?

I am working with them right now to get a US distribution setup.

.

Why there is a big gap in your account??? ??? ??? Same problem???

http://i58.tinypic.com/wcefes.jpg

Price range ?

I  switched the miner to one potential buyer's account to show him the hash rate and he asked me to mine 24 hour to observe the variation, that explain the gap shown 

I just got one shipped from the OP today ( escrow thru salty thanks again btw)
so far so good  its running at 1040 at the wall with 80F for a temp I'll get around to changing the PHP file in the morning to english because it came in mandarin its about as loud as a BFL single i'm sure i can get that down by replacing the fans.

I have another order of 10 I'll be placing within the week  and a larger order later if he can handle the volume.



I've got a video and pics but i think they're were some uploaded already.

all in all i gotta say was a pretty smooth transaction.

and i';ll have to go back and check my emails but that gap might have been when he switched it for me.  but will have to check the times of my emails

edit 2: the Above pictures dont show it but theres also a HDMI port on top

one order escrowed by saltyspitoon has been completed.

Thanks for the words, nitehawk
the gap is not for you but other people, he is also very nice to sent the btc mined back to me, you can see that transsaction on my btc address listed above.

You give us a good reason. But this doesn't explain the peak in the middle if you observe carefully.

    The plan for the hosting dragon 1T miner locally

  I am a re-distributer of Dragon 1T miner from china and responsible for the selling outside china, I have posted the complete evaluation of the miner in the following link, and I have also complete one deal with nitehawk escrowed by saltysplioon as you can see in the same topic. https://bitcointalk.org/index.php?topic=485497.msg5375481#msg5375481.
  Then I realized it that many money will lose in this way and increase the price of the miner, (the ship fee for a package weighted 22kg at the size of 70*40*55 was about 300$ via ups or DHL. and it will take at least two days to arrive (it will be 4 days if weekend are included), and at least another 0.32btc is lost during the shipment). If the miner was delayed by customs, it usually takes more than one month and a large amount of money to get the miner back. I have to add some fee to cover this risk. That is why the price I set is much more than you can see on the website of miner(www.lketc.com 27000 chinese yuan, 4500$).
   To decrease the price of the miner, I will provide a hosting plan here. Here is the detail of the plan. You can buy one miner at the price of 27500 chinese yuan (4590$ ,need additional fee to cover the ship fee ), and I will host this miner locally in china, the miner are supposed to deliver in 10-15 March 2014, and usually take 2 days to arrive, so the miner will start to work in 17 or 18 March 2014. I have a data center here (it is an internet bar now, and can supply enough power to support as much as 150-200 miners). And I will type your pools address and worker name into the miner, so you can receive the btc mined in real time. And the host fee will be 250$ per month and you need pay it monthly via btc( the fee for the electricity, internet, room and management all included). And you can ask me to ship it to you after mining for 3 months.   
The price and miner is almost the best that you can get today and thus the main thing you need to consider is that whether I am an honest man to be trust. The host place will be Nantong, which is about 200 Km away from shanghai, and welcome for the visiting.
  So if you want to join this host plan, PM me or send a mail to peicaili@gmail.com or add me skype:Skypepcfli. By the way, if you do not want to join this hosting plan and just want buy a miner from me, you can also contact me via above method. 
  Yours sincerely
                                                                    Peicai li
                                                                  2014-2-26
                                                                  Nantong china

That gap is 48 hours according to the chart scale, the spike seems to happen at 22~24 hours.

Reseller of machines made from the stolen batch of Bitmine A1 chips?

As i know, the chip is A1 indeed, they buy it directly from the factory who produce them. bitmine is not the only company who have the right to sell A1, the factory of china who produce it also have the right to sell them, that is what happened now.

Interesting. As far as I know, the intellectual property belongs to bitmine and they have not given the Chinese packaging facility the rights to sell these chips.

From what your saying, the chips were not bought from Bitmine. Until the legality of the chips can be better ascertained, I would be very hesitant to make a purchase as being in possession of or receiving stolen goods is considered a criminal offence in most areas.

As I know, the factory who produce the chip not only produce these chip but also attend the design of the chip, and have deal with bitmine that they can sell chips to other people . i donot think that chip can be stolen in such a big amount without being find, let alone that can be sold openly.

You need to know the legal status of your chips. If they are counterfeit Bitmine could get a court order to request Customs seize and destroy your miners on import, ask Trading Standard to remove and destroy them from any business premises, and ask eBay to remove all listings for sale no matter who sells them! :o

Did you get your miner yet beast?

What is the stated value of the item for customs? We have to pay a pretty hefty 20% import duty from China to the UK.

I usually try and host my miners with foreign companies as a result. Although it's hard to find someone reliable. I this case, I think pcfli is offering a hosting option in the group buys subforum, but I am not yet sufficiently convinced of his/her trustworthiness to jump in. Otherwise, it seems like a good deal imho.

Thanks gh2k,  sudoku have joined the host plan and paid me this morning after testing for 24 hours, i believe that honest person can make much more money than cheater. so if you have interest to join the host plan, tell me your btc address and i will let the miner mine for your in Eligius pool for 24 hours for test, then you can make the final decision, if you don't want to join the plan after test, feel free to tell me and  just send back the bitcoin mined.

Responsible hosting providers should be very reluctant to host potentially stolen hardware as the authorities might seize all other hardware at the hosting facility as well until proof of legitimacy can be provided.

I don't want to spend too much time on that steal issue, i have confidence that my miner are bought from one professional factory, i don't think they can steal so much chips to built more than 1000 unit. We have the deal with factory and they will offer us 600 unit before 10 March, if he cannot hand the miner to us by then, he will pay us a large huge of money for compensate, do you still think that this person built the miner by stealing the chip?

not really, his miner will ship in 3 march because of the weekend.

what about the stated package value for customs? how much do you state it is worth and how will you describe the goods?

This website shows these miners available March 10th.

http://coinhash.co/products/1-th-s-dragonminer-1000gh-s-coincraft-a1-28nm-asic-chip-bitcoin-miner-not-knc (http://coinhash.co/products/1-th-s-dragonminer-1000gh-s-coincraft-a1-28nm-asic-chip-bitcoin-miner-not-knc)

this guy full o shit and scam bag line up here to lose your bits coins

is there anybody have interest to host an avalon 210G miner in my place at the price of  600$ (250$ host fee per month). the miner is at hand and will mine for you immediately after giving me your btc address and 24 hours test for free also provided.

Hello every, here is a good news for you
The factory has informed me to adjust the price of dragon 1T miner to 9 btc for hosing and 9.428 btc for shipping,  only 10 unit available and can deliver in 48 hours after payment

that photo of the chip is from bitmine homepage.....^^

Not worth it. Needs to be half that price.

The link you posted magically changed to available on March 15th.  Sold out it says

Also, the price dropped from $9500 to $6890.  Very sketchy to say the least.

Proceed with caution.

There are millions and millions of chips leaving chinese factories real or not, authorized or not, copies or nor that is why the hashrate is sky high.  Avalons Asic, etc.

By that time in 9 months the chips will be outdated.   Mining difficulty 100 Billion.

It's now 19999 Yuan = $3255 USD

Heck shipping on this unit should be cheaper than the Ants one package.

They should be able to beat the Ant prices for sure.

Edited for content, I see others have purchased these machines.

@warhawk187: Perhaps you are unaware, but you have just potentially incriminated yourself.

These current Chinese machines based on the CoinCraft A1 chip belong on sites such as Silk Road and customers should be mindful that just because a few units were received and reviewed it does not mean orders can be fulfilled on an ongoing basis.

Then please delete my original comment. I did not read that part of this thread, nor do I condone any IP theft.

are those up for order to europe or australia ?

These guys take Paypal. Tempting. I need to sell btc to do this not sending btc direct. Minersource.net has these??

Yes  the order is open all over the world

Have you successfully overclocked the machine?  Please give instructions on how to do it.

Copyrights ? Patent ? In China ? please...

Miner arrived today as claimed by pcfli. This thing screams like a jet engine, and weighs as much as one.

Will have to replace with something quieter, and I thought the Antminers were loud.

Also, for US people, have a spare PSU AC cord rated at 10A or greater for a 1000W PSU, the original AC cord is China CPCS-CCC (Type I). Luckily I had an extra EVGA Gold 1000W PSU not being used, so I used the cord from that.

Interface is all in Chinese, but luckily when on, the front screen tells you its local LAN IP. Thank GOD for Google Translate, I had it configured and hashing in less than 5 minutes once but pcfli supplied documentation beforehand.

Hashing at 1Th/s as claimed on Eligius:

http://eligius.st/~wizkid057/newstats/userstats.php/1JcW46otG6dFXMus3snVMTu6pZoymmS8uE

I will post pics and a full review later today.

All you need to do to change to english is change a single PHP file on the pi

Thanks for the review, the first miner i received have run more than 10 days,  and it is very stable

 :(

5000$,!  The last call for the order of dragon 1T miners delivered in 10 March.
　　
Hello, every one , this is the last call for the order of dragon 1 T miners delivered in 10 March, The price is 5000$ for the miners delivered and 4400 for the miners host.

This batch will arrive in my place in 9 March, and i will send it to you in 10 March.I have done four delivery deal and one host deal by now, and all of them will get 100$ discount in this batch if you make the order,
With the release of money held in the last deal and some financial help from my bank, i can provide 5 deal with escrow.

If you want to buy one or just want to learn more about dragon 1T miner, contact me via PM, email:peicaili@gmail.com or skype: skypepcfli.

I will be getting a few of these escrowed thru Og :)

When these are 3000 I will jump in for 1. I am getting more power run to the basement next week...

X2 5 ants cost 5.5 BTC right now for the same hash rate. I would pay up to 6 for the extra efficiency but couldn't justify more for the short life of the returns.

http://i58.tinypic.com/xpqbe8.jpg
http://i59.tinypic.com/sgigm0.jpg

150 units of dragon 1T miner are brought into farms and another 400 unit will be added soon.

I love it.

F##K  all these Pre-Order companies.

Nice to see Independents making a Stand!

This is the same question we ask KNC, BFL, ASM, Cointerra, etc.   Whey are they selling the equipment??   Probably because they have to prove they did something with the pre-order $.  LOL

That would be $4100-4200, interesting.

f..k KNC!  Here comes the dragon... :D

Because the chips in these machines are stolen property.

---
---

Although we accept pre-order at a lower price, we also promise to send the miner within 48 hours after payment, if you pay me 5000$ today, I will deliver the miner to you in  12 March. On the other hand, you can pay me 4200$ now, and i will send you a miner in 20 March

That is the way to do it congrats!

thanks bitcointalk Let be here these scammers !

+1

Pls delete

I repeat here

https://bitcointalk.org/index.php?topic=488372.msg5649179#msg5649179

spiccioli

I would like to point out  it seem like that you ask both Skypepcfli and skypepcfli to send a PM to you, That is the reason why i send a PM to you as you requirement, and i have warned you closely after that.
I will post our chat record when i get home,

So have these knock-off chips been reported to Chinese authorities?

Maybe being bribed in Bitcoins

Maybe you should contact Innosilicon and order your chips from them, cut out the Bitmine middleman seeing as they are just a reseller of Innosilicon chips apparently.

and chinese authorities reward this gay whit low interest credit because he is intelligent and make money for chines economy.
do you now how big is China.China authorities only interest paying tax, american/euro shit like  infringement of copyright wow care this is not china problem,this is problem EU/USA.

Chips will be outdated in 6 months anyway

What are the environment temperature in China where you host those machines and what are the chip core temperature?

Now the room temperature is about 16 degree and the chip temperature is about 28 degree, i have air condition in the room also  to face the coming summer

If the miner is put in a room with environment temperature of 35 degree Celsius, what will the core temperature be?
Are the fans PWM or will their speed stay between 3150-3450?

Joke of the day.

we will test in future, but the temperature won't be very high as we suppose

can you post more info on how to do this? links, etc.

Thank you

While you can change a single PHP file to make the interface in english there were a lot more problems than that present. For one there is not autostart/autorestart and the cgminer process was started directly from the php button(BAD). I ended up completely overhauling the interface based off of some other cgminer php UI files floating around https://github.com/jameshilliard/28nm-www . Whoever made the stock GUI and pi image did not really know what they were doing IMO.

Prochedure:
ssh into raspberry pi using the IP on the screen or an ip scanner, its IP should be between 192.168.1.1 and 192.168.1.254
default username is "pi" and default password is "raspberry"
you can either use sudo to make these changes or just make a root account
To make a root account:
then enter your password
you can then use a GUI tool such as winscp to move files around
copy or clone my git repo to /var/www
you will then need to place the startup scripts and other files in the right places
simply follow the matching paths for my var opt and etc folders from the root directory and place those files in their respective folders
you will need to chmod all of those files in var opt and etc to 755
you will probably need to chmod /var/www recursively to 777
you will then need to run:
you will probably get an error but it will still work after this command
From there you will see the new webui with minersource in the top left hand corner.
Please submit a pull request if you come up with any improvements, I hacked this together in about 12 hours so I'm sure I missed some stuff. Currently it will not set a webui password properly, although you couldn't do that to begin with, that should be an easy fix but I just haven't had the time to go through it. I haven't figured out how to get the IP to update on the screen either with the UI I made.

does anyone how to manipulate the information on the LCD screen? How to make the lcd screen show the hashrate, pool, etc. I looked through all the files on the raspberry pi and cant find anything

hi， everybody， i am runing a group buy now
4100$, dragon 1T miner， delivered in 19 Mar, and i promise you will receive the machine no later than 22th
here is the link for group buy and the link for the evaluation of dragon 1T miner
Group buy：https://bitcointalk.org/index.php?topic=514758.0
evaluation：https://bitcointalk.org/index.php?topic=485497.0

pcfli, from now on check bitmaintech.com and adjust your prices. You are far behind them in any aspect.

they provide S2 at the price of 3599,  shipped in 10 Apr, you tell me which one is worthy to buy, 1 T dragon miner priced 4100 and delivered in 19 March, or S2 priced 3599 delivered in 10 Apr. Now dragon 1T miner can earn 0.12 btc each day, and  you can earn more than  2  btc (value 1200$).

$3899 for the S2 is higher price than individual S1, but they adjusted for energy savings, still not cheap!  But no competition.

I trust Bitmain, I don't trust you.

it is true that i am new here and bitmain have built their trust in the last year by keep their promise. i knew that, so i accept escrow, and i try my best to realize what i have promised and i did it by now, you can check the buyer's comment on me. It need time to build trust, so give  me some trust and i will refund you more.

Hey,
Would you be so kind to answer my pm?
Thanks

Does anyone know how to overclock these units?

Can someone link to setup instructions for accessing the device and manually configuring cgminer.    In the future, any company selling hardware needs a support thread that has information for setting it up, you really do your customers a dis-service noting having that ready.  Thanks.



P.S. I tried to SSH into the IP on the LCD screen and it is not accessible. 

Hello,

can someone please share with me the SD .img File please ? my 32 Chip miner is offline at the moment. please help.

Many thanks in Advance.

Figured it out and here is a video I made for the 1TH Dragon Miner.

https://www.youtube.com/watch?v=OVQkQ37BGhk (https://www.youtube.com/watch?v=OVQkQ37BGhk)

Nice, thanks.

So, what are your impressions now that you have tested the dragon?

I trust him and it is all good!

I trust him and he trusts me!  Together we're family,

pcfli is a man of his word. I purchased 1 unit w/ escrow and had it delivered on the day he claimed.

I am also having him host 3 more miners at his location, with a 4th on the way for the 5 April batch.

He has proven himself to be a very legitimate reseller/hoster and I've had zero issues so far.

Thanks pcfli and good luck on more sales.

Thanks for your support guys, i will try my best to keep my word, it is the base of my business and i will not allow it is destroyed

Damn fine units overall.   Only grip I have is the lack of a dedicated support thread or English setup instruction in the box AND the case being taller than 4U.   


-D

Support thread here now: https://bitcointalk.org/index.php?topic=545642.0

I would like to respectfully request you post your hardware driver's custom modifications to the cgminer source code as per the agreed upon license when you chose to develop on cgminer.

You must make an open letter to the manufacture. I believe Lee is just a reseller.

Thanks, who is the manufacturer?

If this is the same miner i have its:

Nancy -Hu
Lketc Group Limited
Skype : nancy_business
MSN:nancy_business@hotmail.com
E-mail: nancy@lktec.com
          nancy_business@163.com
www.lktec.com

To be honest, i hate to see ppl violate opensource license. I would never trust a vendor that use opensource code and close source it.

I'm going on a limb and says until they release their source, they can make their miners to send 10% hashrate their way.

I have 5 of these and 2 more on the way.  The entire driver and stuff to compile cgminer was deleted but never removed completely.  I can't access my desktop at the shop with my miners (Uverse is crapping the bed tonight).

From what I know their modified CGMiner just includes API for the LCD Screen built in.  Also Lketc did not build it, at least it's labaled in all files as from Innosilicon I'll try to remember to grab it off of there tomorrow and send to Ckolivas to see if they are just blatently using it claiming its REALLY modified.

I have faith that the machines are not scamming us. I am getting my paid for 1TH so I'm ok with it.

Sorry, CK, i will transfer your opinion to the factory owner, but i canot promise anything, However, they did said they will let user to change frequency and other cgminer related factors into the controller windows, they said they just want to make the interface as simple as possible, i one ask them type both the chinese and english into the interface, but they prefer to choose two version because of that will make windows too complex, another issue is about the chip, it seems like when it runs at high frequencey, it will lead to many HW error, maybe they donot want to user destoryed the chip by over-clocking

The issue is not ckolivas's opinion or his request for the software even if he is the developer.  He released cgminer under a GNU general public license which allows modifications to the software, but in an effort to promote growth and open source those changes must be made public since the original code was public.

https://github.com/ckolivas/cgminer/blob/master/COPYING

The manufacturer is hopefully aware of these requirements.

The Chinese can do what ever they want. it sucks, but sadly we will continue buying miners from China. I don't think this is going to stop many people.

It would be great to have an update on this - has the source code been released to ckolivas? Also, has lketc provided the information on how to overclock the miner? Pcfli some time ago I believe you stated that an lketc engineer wanted compensation ($$) to unlock miners?

Is it possible that their hesitancy to release the source code is tied to a desire to squeeze extra revenue from an unlocking option? ;)

Also, just in general, where should we be looking for firmware updates for the miner?

the over-clock can only be performed on the earliest type with 40 chips inside, it is impossible for the current version with 32 chips because it is already over-clocked, as for the open source, they didnot want to open it right now, at least in the near future, because they donot want to the competition get the driver code.

"Impossible" is a strong choice of words - in fact one of lketc's competitors (qiangminer - https://bitcointalk.org/index.php?topic=561706.msg6138945#msg6138945 (https://bitcointalk.org/index.php?topic=561706.msg6138945#msg6138945)) is offering 'unlocked' clones (on which they will obviously not offer warranty). Given this: has lketc artificially locked maximum performance to a preset figure? I think I already know the answer to this (yes: ~1.02GHS max) but there it is.

Don't get me wrong; I can see how (from a manufacturer's POV) it might be be perfectly reasonable to lock performance e.g. to avoid damage to the product and to thereby avoid excessive warranty claims.

I don't have one of these devices since I was scammed out of my money, but I will make an official request for the software. They can not take open source software which was released under a GNU general public license and not follow the licensing terms.

You guys do know these are ran of a raspberry pi and is just stored on a SD card take the card out copy card ...

I'm not sure what you're talking about - what exactly would that accomplish??

He probably doesn't understand the difference between "source" and "executable/binary"  ;)

actually i do but i know theres more than one way to skin this cat..

Guys I know this is an annoying question, but if I import this Dragon Miner to the US don't I risk seeing it get seized then destroyed at customs for non FCC compliance?

All computers or electronic devices in the US are subject the FCC compliance, and manufacturer/shipper must provide proper documentation at customs on request.

That's a risk I wouldn't want to take; please prove me I'm wrong, guys...

are you talking about decompiling the binary?  If so, have you ever tried doing that?  It's not trivial.

if you worry about this, i recommend you  buy a host miner , then such thing will never happen.
you can check the detail of how to buy a host miner through the following link https://bitcointalk.org/index.php?topic=576844.0;topicseen

Got it destroyed once.

There is my point... 3000$ is a very big gamble for this machine. Hosted mining adds even more cost so I think this is not interesting either, as this machine does not ROI as it is already so hosted adds even more cost.

This FCC issue is a real tough one; it is annoying because FCC compliance wasn't really meant for these networked miners but it becomes a serious bureaucratic red tape problem.

The manufacturers in China will have to become certified, I guess there is no other way around it...

i provide an insurance for the people who worry about ROI thing
Insurance for the host miner
To ensure the people who buy host miner in my place will not lost money, we provide the following insurance
All of the host miner will have an option to resell after four month host and the price is calculated based on the following equation:
　　　　　　　　　　　　　　　　R= I+H*4-M*E
R:   Re-sell price
I：  Initial price of host miner
H:   Host fee:225$
M:   Mined btc during the four month,
E:   Exchange ratio of btc/usd from btc-e

Here is an example for understanding:
A buyer who have bought one host miner at the price of 2900$(I), the miner switched to his/her pool on Apr 18, and host in my place for four months, and mined 6.035 btc during these time. And the real-time exchange ratio of btc/usd in btc-e on 18 Aug is 410$ . Then this buyer will have an option to re-sell the miner to us at the price of
R= I+(H*4)-(M*E)=2900+225*4-6.035*410=3800-2475=1325$

Flawed, flawed, flawed. 1 TH/s is not going to mine 6 BTC in four months. No way. No where near.

And what can I say about that formula?

R=I+H*4-M*E

WTF

is that

R = (I + (H*4)) - (M*E)

or

R = ((I+H) * 4) - (M * E)

or

R = (I + H) * (4 - ( M * E))

FFS - you can put any number you like into that formula and make a profit.

thanks for the point out, the first fomula is correct, and i will update it

Then if the first formula is correct and I only manage to mine 2 BTC in four months, my re-sale value goes up - doesn't compute...

Hello pcfli... thanks for all your help on this thread, very appreciative.  I own two of these beasts, and I love them... I was just wondering if I could put in some fans that were a bit quieter.  I have some 120mm fans that can push 130cfm of air, but I can't find the specs on the fans that are already installed.  I don't want to put a weaker fan in there and overheat the system, and would actually like to improve the cooling because they run around 55-60c right now.  Do you know the specs of the installed fans and can they be upgraded?

Got it destroyed once.
[/quote]

There is my point... 3000$ is a very big gamble for this machine. Hosted mining adds even more cost so I think this is not interesting either, as this machine does not ROI as it is already so hosted adds even more cost.

This FCC issue is a real tough one; it is annoying because FCC compliance wasn't really meant for these networked miners but it becomes a tough bureaucratic problem.

The manufacturers in China will have to become certified, I guess there is no other way around it...
[/quote]
i provide an insurance for the people who worry about ROI thing
Insurance for the host miner
To ensure the people who buy host miner in my place will not lost money, we provide the following insurance
All of the host miner will have an option to resell after four month host and the price is calculated based on the following equation:
　　　　　　　　　　　　　　　　R= I+H*4-M*E
R:   Re-sell price
I：  Initial price of host miner
H:   Host fee:225$
M:   Mined btc during the four month,
E:   Exchange ratio of btc/usd from btc-e

Here is an example for understanding:
A buyer who have bought one host miner at the price of 2900$(I), the miner switched to his/her pool on Apr 18, and host in my place for four months, and mined 6.035 btc during these time. And the real-time exchange ratio of btc/usd in btc-e on 18 Aug is 410$ . Then this buyer will have an option to re-sell the miner to us at the price of
R= I+H*4-M*E=2900+225*4-6.035*410=3800-2475=1325$
[/quote]

Flawed, flawed, flawed. 1 TH/s is not going to mine 6 BTC in four months. No way. No where near.

And what can I say about that formula?

R=I+H*4-M*E

WTF

is that

R = (I + (H*4)) - (M*E)

or

R = ((I+H) * 4) - (M * E)

or

R = (I + H) * (4 - ( M * E))

FFS - you can put any number you like into that formula and make a profit.



[/quote]



R= I+H*4-M*E


Know the order of operation --- the universal math language.

So you do multiplication and division first before you do subtraction or addition.

There's nothing wrong with the formula R= I+H*4-M*E

I have only ordered one Dragon so far.  It made it very fast.   No customs problems or destroyed.  I was very satisfied.

You may be right here.  But I have to say that over the past 8 months I have received about 44 miners, Antiminer S1 size and larger, directly from China.  I have never had one seized or even delayed by customs.  I'm in the USA.  I have had one come in with blades loose.  But it was easily fixed and the rest were all ready to plug and play.
I don't know the FCC rules on what is allowed and what is not.  I could be the luckiest guy in bitcoin for having them all delivered.  But I have not heard of anyone getting these seized by the FCC or Customs or anyone.  Jus sayin'.

Lets get back to my question because it was so riveting!!  Any ideas on the fan speed for the Dragon 1T?  Anyone ever replaced the fans?  I have a smaller space and these suckers are pretty loud.  ;D

if you want to get rid of this trouble, you would better buy one host miner:)
as i know the temperature will effect the hash rate, you would better not to replace it with a quiet fan, because the summer is coming

I already have my own hardware, and the noise isn't that bad.  I was just curious if I could put in a high powered fan that isn't quite as loud and would do the same job.  I have searched everywhere even looked up the brand of the fan inside the machine but can't find the stats on how much airflow it puts out.  I grabbed a few 130cfm and that is pretty powerful... the most powerful I have seen anywhere online is 200cfm.  So I am guessing you don't know what airflow these have stock?

sorry for the confusing, i guess i didnot get your point here. to be honest, i am not an engineer and know a lot on this issue, you can ask bobsag3 for help, he seems know a lot and he buy a lot of miner

OK thank you, I appreciate your response!  I will look him up.

They are around 120-125+ stock fans.  Which is pretty decent airflow, but not the quietest.

Can somebody please send me an image of the SD card?  :'( my SD card became corrupted and I can't find any images anywhere.
From what I can tell you just need to read a good SD card with this program: http://sourceforge.net/projects/win32diskimager/ to create a backup image to restore from, if someone could do that with a working SD card and send it to me (with MEGA or something) I'd *HUGELY* appreciate it. 

yopix is correct.  220-230+

This is whats in a Dragon 1T if you didn't get the crap 25mm fans.

http://i232.photobucket.com/albums/ee239/BiffaZ/Dragon1T/b6c481ca-0529-46ac-a5d4-2353430c2a8f_zps190e770d.jpg

Its a 110-130CFM Dell fan

http://www.chiefly-choice.com/uploads/123129020965fs1x.pdf

I have the 4 blade, does it work for you?

https://dl.dropboxusercontent.com/u/92967009/dragon_image.7z 

thank you for providing this img file, can you specify what is the version of this img file, four blade version or five blade version, english version or chinese version?
and also what is the initial ip address in this img file

Chinese, 4 blade, you will have to check the from panel for IP, I thing it was 192.168.1.163 but am not sure.

If anyone has an english image -- please post

I have the English for 4 blades.

If anyone interests let me know so I will make the dragon surgery.

I have English for 4 blades.  It is a 8 gig image.  So you will need a 8 gig card.  Definitely would need zipped.  Are the people needing English 4 blades or 5?

I could use a 5 blade English version. Is it there instructions on how to do this correctly, and with an autostart feature (the 5 blade model I got a month ago doesn't auto restart hashing).

please upload it into dropbox and paste the link, i will paste your link in my trouble shoot topic

A link https://www.dropbox.com/s/yz02suc4j24ium4/dragonboot-4BLADE-ENG.7z (https://www.dropbox.com/s/yz02suc4j24ium4/dragonboot-4BLADE-ENG.7z) to the 4 blade english ISO.  When unzipped willl be a little under 8 gig.  It's ip is http://192.168.1.134/

And as a extra precision use a 2nd card just to make sure it works with your machine as well. This is the software used to make image http://sourceforge.net/projects/win32diskimager/ (http://sourceforge.net/projects/win32diskimager/) .  It also can write images aswell.

Thanks for the info on the fans in the Dragon.  I think there is a bit of confusion because it seems to me after taking them out that one fan is heavier (and more powerful) than the other. 

Seems like the big fan in in the middle of the machine (prob 200+cfm) and the other is more a regular high speed (130+cfm).  I think this is because one fan hits more blades than the other.  I have not replaced any of them yet, but may in the future if I can find some nice high speed fans that aren't very loud, and hopefully can cool even better than the ones it came with stock. 

The price on these are very good, so I am sure they had to save money on some parts sacrificing cost for decibel level.

Does anyone know how to ssh into the miner to allow read / write access (api-allow) so I can manage switching pools on the fly via cgremote? It just shows up as read only right now.

thanks!

screenshot of Putty ssh window:

https://i.imgur.com/LPDs0PO.jpg

I replaced the Nidec TA450DC B35502-35 235 cfm fan and the other mystery fan with 2 of these Sanyo Denki 109R1212H1011 fans pushing around 102 cfm each and under 43dbs the units purr like kittens and still keeping the temp under 68c, average is 55-57c. Got them off Ebay from dealer in Cali. there is a 150 cfm model but then you back at the 56db noise. 
http://www.ebay.com/itm/281311612245?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

Is that good or bad to purr like a kitten?

Anyone has this 5 blade version for the old 5blade dragon ?
The 5 blade dragon works @200hash for every blade (not 250)
If I run the miner with new dragon firmware every blade works@250 but i  get 30% hardware errors

This post might help you to edit the speeds: https://bitcointalk.org/index.php?topic=409701.msg7117387#msg7117387

I found this post and I try to do it (edit the run.sh from 1000 to 850) with WinSCP but the cgminer don't want to slow down ...

Edit : I think I found the problem ... I edit the file: index.php and not the file Run.sh  and works!

Thanks!

Is the ssh username - pi
              password - raspberry

?

what's the ssh acces  to these miners ?  i already try "rasberry / pi"   &  "Pi / raspberry" ,  but nothing to to ... i still cant ssh the raspberry pi ...

You can use a older image with ssh if needed:

A link https://www.dropbox.com/s/yz02suc4j24ium4/dragonboot-4BLADE-ENG.7z to the 4 blade english ISO.  When unzipped willl be a little under 8 gig.  It's ip is http://192.168.1.134/

And as a extra precision use a 2nd card just to make sure it works with your machine as well don't use your working SD card as extra protection. This is the software used to make image http://sourceforge.net/projects/win32diskimager/ .  It also can write images aswell.

Yeah, that or it was "too difficult" to source an appropriate high-cfm fan with a long 4 pin lead to reach the junction board from both fan locations.. Or to just lengthen the cable or use an extender...  ::)

thanx a lot , let's flash it  !   ;)

  (i really dont understand why they changed this damned password... )

Hi guys...

Where do you buy those miners ?

Im interested of buy one but i found different sites that "sells" it.

Best regards Dansoft

Can someone tell me what is the real consumption from wall of new model 1T Dragon with 1200 psu and more importantly how many amps?
to know how many can I put in a plug :-\ eu220v

thx

I think is around 1100W.

Or 5 Amp at 220V circuit.

I can confirm its just over 1,100 Watts at the wall 110V

in case anyone else runs across them.
 dragon-miner.com is a scam website
That is Not where you get a dragon miner. site is run by a guy named Jin, he is a thief and wanted criminal in 7 countries.
He is up with the latest scams and even offers cloud hashing now. Yep you get 100% guaranteed NOTHING for your money (bitcoins).

does anyone have broken dragon miners they are selling for parts I have 1 ASIC chip burned out and the seller refuses to replace the module or the machine. When it arrived it had 1 burnt out Asic chip on 1 module, replacement fans that are slow and not of good quality and the machine overheats so I need 2 good fans and a module to get this baby up and running to max potential. if anyone has some broken dragon miners laying around i may be interested in purchasing them. Keep in mind I can get a dragon miner for 600 bucks right now so lets not try and make a fortune I am well into this game already :)

"Please send BTC(165.00USD)..." - Why doesn't your website convert USD to BTC automatically? What exchange ratio should I use to transfer to given BTC address correct amount of BTC?..

p.s. and what will be shipping price if ship Dragon 32M to Russia? It's hard to believe that 0$, and I haven't find any other value during checkout.

i've got several dragons units to sell ( 8 x 1 ths dragon miners ) contact me via pm if intrested , thanx  8)

I believe thee shipping is zero because he want's you to host with him.   

On shipping you might send him a email or contact on website as I have no idea price on shipping.

I've got several dragon units to sell ( 6 x 1 ths dragon miners ) PM me if someone interested.

Why dont you make a new thread at the marketplace?

Or link to a thread if you already have one ;)

Please upload it again. All links I found are obsolete now.

Sorry I no longer have this image and no longer have a Dragon to get it from again.    If anyone has my image still they are more then welcome to upload it.

I had somewhere image for 1TH - 4 die dragon miner, can upload it if actual.
It had +russian language for interface

If you do have it I'm sure eventually someone will thank you for it.   The original one is not up I don't believe.

I was doing some cleaning of my files and somehow deleted it off my dropbox.  That and a usb hard disk dying with me having sold my 1T a while ago makes it where I wont be able to get the image to share with others.

I had a copy of this saved (dragonboot-4BLADE-ENG.7z) and have uploaded it.

http://ul.to/8c0brmqe

Thank you for uploading it for others!   I am happy to see this image back up.

I was surprised it seemed to disappear after my bad luck on hardrive.  Truly appreciate it!

Thanks Tigggger, bcs can't find in my laptop the image I had for the dragon miner ;D

My pleasure :)

You really did solve a problem.  I'm going to throw a trust your way :).  I was tired of telling people I did not have the firmware in PM's from old posts. Now I can point to your's thanks!

Glad to see it's already helping people.

What is the ssh pw for dragon A1 and how can i use his cgmienr api?

I believe it depended on what firmware you were using.   It has been a long time but I think at least 1 version they did not share the ssh credentials with public.

Its been a long time since I have dealt with it.  Make sure to backup firmware before trying but this might help - https://bitcointalk.org/index.php?topic=648730.0

Hi everyone,

can someone please help me with the SD card image of 1TH Dragon Miner ??
Although there are many links over the forum, most of them are not valid and those that I've found so far have different version.

I'm looking for this version from the images below:

http://imgur.com/9bQ89sc
http://imgur.com/DrOWGTb


Thanks

help help help. broken hard drive. and flew firmware 2Th

Anyone still has a img file that can share for 1ths dragon miner? All i am finding on the net is some mod verson with log in windows ect...thanks

Hi, my PSU broke for my Lketc Mintforger Dragon 1 Th/s (1000 Gh/s) Sha-256 Asic 28nm Bitcoin Miner. I have trouble finding the correct specs for a replacement PSU. Can anyone help me with this?

Since the AMT 1THs miner I got so long ago is pretty much the same thing and was built by the same people it should be a 1,500W ATX supply. Has to be ATX because along with the high-current 12Vdc the miner also needs 5v and 3.3V to power the raspi and IO. Mine has 8-pin power connectors to the hash boards, if the Dragon is the same you will have to adapt the PSU's 6-pin PCIe cables to the 8-pin connectors from the dead PSU.

This is from my steam engine.  ::) 1THS Dragon Minet by LKETC
1200W
AC INPUT - 115-230V  50-60Hz 15A
+3.3V & 5V  150W
MODEL: IRP-COM 1200 II


https://i.imgur.com/BtnNGwA.jpg?1  https://i.imgur.com/exY9OeZ.jpg?1

 Based on the pictures I've seen, it looks like a Seasonic X-1250 Gold would fit (I did 2 PS replacements on Innosilicon A2 units with these PS last year).

 However, unless you have FREE electric you are losing money running that ancient inefficient miner.

Yeah its a money loss thats for sure but since mining rig rentals prices per ths went up i wanted to dust off some of the old hardware and just show some support for other coins. Bitcoin is a loosing battle where i feel like anything under a 5ths for a tiny home owner is a waste of time.
But i do support some other coins that 1ths goes a long way.

Hi. Cannot find firmware for 1TH 4 blade version. All links are death. If someone still have it - please give me link

Found one ;D, installed it and Its working just fine. Its for 1 THS Dragon miner. If anyone needs it let me know. I will put some instructions (to help you skip the mistakes i have  bumped into)
Its a clean image, no log-in or some malware.

https://bitcointalk.org/index.php?topic=545642.msg24605300#msg24605300

Image and Instructions