You are right sir. To be more accurate each FPGA has two fully unrolled SHA256d cores working at 300MHz. That is 600MHash/s/FPGA and the total hashrate is nearing to 21.6MHash/s.

With the last diff increase I am getting around ~1.3BTC/day.

I will not post anymore photo. Believe what you want but I will give you technical details. The green board is capable of delivering 30A and because of those cable that you mention the voltage that reaches the FPGAs is 0.90-0.91 V (read using the JTAG). So because of those cables and high current voltage drops but even so the FPGAs work stable. Yes I know, the minimum voltage specified in the FPGA's documentation is 0.95V but they are still stable at 0.90V. About the high speed switching again there is no problem: the FPGA board has it's own capacitors for DC filtering. If you have EE background/knowledge I guess you understand all this.

For the moment they are the best public solution in the bitcoin network. But they can be taken out of the game soon if they don't come up with a better solution.

Maybe this is a strategy of theirs: to start selling chips using old technology and then giving better solutions when the market is hungry again.

You are right about that, physical optimization will bring such an ASIC to a better performance vs. actual miners. But that is true only when using the same node as the other manufacturer (I consider Avalon the only at this moment!).

In this project we can use smaller technology node, and as more people fund this project the better will be the ASIC.

You can have a lot of advantages over the current market offer: small price, miner performance, eliminate the possibility of the manufacturer mining in the backyard etc. What other proposal can be better than this when I have no money to do this project? OK, maybe another person with an ASIC background, but the funding scheme is good I think.

I can establish this company and do a lot of technical stuff. I can prepare a bunch of RTL variants to be tested in an ASIC test run and from this select a finalist/a few finalists. I can design the system architecture. Of course there is a gap between FPGA and ASIC but there is also time as I proposed.

In my proposal the buyers/investors have powers to take decisions if the project should go on at any point, or if strategy should be changed (in case performance is not considered satisfactory).
There is somebody selling ASICs nowadays and he started from selling FPGA-based devices. I think it is a good point to start and you can add to that a lot of time that I can dedicate to this project and people like you giving advices and making decisions so that things finish good for everybody.

I see people are desperate to buy these chips/miners these days. It's because we are in the days where difficulty is relatively low. As I proposed there is one year needed for this project to have a consumer device and by that time difficulty will be very high. Unlike ASIC-based miner manufacturers who forget to mention that difficulty goes very high when a lot of ASIC miners enter the bitcoin network, I am warning everybody about this fact.

Maybe from this point of view the perfect investor/buyer would be the category of people who own a moderate to high amount of BTC: they will initially fund this project and this will attract a lot of more people who are not a part of this category. This way more and more people will have access to ASIC based miner and the BTC will gain strength. Also the competition would learn a lesson (hopefully ASIC monopoly/oligopoly would go down) and stop selling their ASIC-based miner at these prohibitive prices.

jubalix: you wouldn't. I realised that the FPGAs that I have can give 150-200 kHash/s for LTC and that is a 3000$ FPGA.

@tbd: really I optimized the existing open source code to be able to squeeze two fully unrolled SHA256d cores in one big FPGA. About the ASIC: the chip is the expensive and the most time consuming part of the project and as I propose that the public fund the project I think is miners what they want and not chips.

@witherworth: there is no company. With me everything must start from zero as that is exactly what I have in terms of money. I know that the community lost money and hopes as many failed to keep their promises but I cannot do anything without your financial support. And also any technical support will be welcomed.

Here is one of the two rigs: under each heatsink there is one Virtex 6. The green PCB next to each heatsink is a power supply with 25A@1V for the FPGA core. One level below the top you can see a Digilent Nexys3 board. That board acts as a remote (over TCP) multiple serial port. Hope you enjoy.

It is impossible to not reveal my identity and do the things as I proposed. For the moment we are just talking if it is possible my proposal.
The future is very uncertain so I don't know if it is too late, that's up to you. I estimate that 9 months to one year is needed to manufacture such a device. If by that time some ASIC miner "providers" don't deliver then it's a good idea to do this project.

   I'm starting a new topic on this (old) theme to ask you guys if you think you see the possibility of starting a crowd funded ASIC miner project.
   My proposal is to start is for me to startup new company funded by you, the people interested in buying such a device. The things can be arranged legally so that I would not be able to access the funds (or be able to access them and risking extortion charges) of this company without your permission (and this could be done with a voting system by signing messages from a bitcoin address). The profit that I get if the device will be a success can be proportional to some variables like: the price of the final product, delivery time, performance, power efficiency etc.
   About myself: I have electronics background. I hold now an engineer position where I develop HDL code and design PCBs. I discovered the bitcoin three months ago and started to make my own FPGA mining rig with some FPGAs that I had at home, so the algorithm it is well known by me. The project was a success: 20GHash/s and 1,2kW consumption.
   So, anybody interested? Opinions?
   

I am interested in leading a crowd funded ASIC miner project.
I have electronics and crypto background and lately I've been busy making a FPGA-based miner with Xilinx Virtex 6 devices.
I never made an ASIC but I think that a period of 9 months should be enough (in this case the target would be by the end of the year).
I know that by then the difficulty will be very high and this miner will not be able to bring the numbers that Avalon brings nowadays, but this project would further help decentralize the mining of the bitcoin (considering that today Avalon has monopoly).

Forget the CPU, it can give you 100 to 20 times less hashing power than one ATI HD7950 for example.
Check out this page for a full comparison: https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison

Guys,

   You can use this site to calculate which coins are more profitable to mine:

http://dustcoin.com/mining

It seems that GPUs and FPGAs have no future in bitcoin. So better drop it or do something with alternative coins. There are coins where you will not see very soon ASICs having most of the hashing power.

Hi,

Admin, please make me a big boy.
I want to post a proposal of making one ASIC-based bitcoin miner device. Yes, I know you are smiling but you will like it I think

Thanks

I was not trying to convince anybody with this post.
I will write the proposal and you will have the opportunity to consider if you are in or out. I followed the situation and I know that there are a lot of scammers around so it will be a little hard to convince people that my intentions are good.
I prefer that after posting the proposal you guys consider me unable to do it than a scammer.

Hi,

I entered three months ago in the bitcoin world. I  have electronics and crypto background and I will post soon a proposal to lay down an ASIC-based bitcoin miner. Serious proposal, no scam.