[CLOSED] BFL 4 GH/s Chips - .06 btc per chip (batch 29)

[CanaryInTheMine]

price per chip set to 0.67 btc

[CanaryInTheMine]

BFL has sent me sample chips... I have made solid arrangements to provide some to a PCB designer to begin testing.

[ryanb]

BFL has sent me sample chips... I have made solid arrangements to provide some to a PCB designer to begin testing.

Thats great news

[Spendulus]

BFL has sent me sample chips... I have made solid arrangements to provide some to a PCB designer to begin testing.

At some point, it would be interesting to have some upper and lower estimates on delivered circuit board cost.  Clearly that would be highly volume dependent and I'd expect the designers and guys that handle the mft to make a profit.  I used to do this and know how it is.

Cost range would be nice KNOWING it's only a crude guess.

[CanaryInTheMine]

BFL has sent me sample chips... I have made solid arrangements to provide some to a PCB designer to begin testing.

At some point, it would be interesting to have some upper and lower estimates on delivered circuit board cost.  Clearly that would be highly volume dependent and I'd expect the designers and guys that handle the mft to make a profit.  I used to do this and know how it is.

Cost range would be nice KNOWING it's only a crude guess.

sample boards are getting ordered tomorrow and then assembled with the sample chips for testing...
once testing is completed, we'll have some idea on pricing...

[CanaryInTheMine]

This group buy has bee PAUSED.  No chips are available for purchase from this group buy.
Will resume after the board being designed is tested.

[ryanb]

This group buy has bee PAUSED.  No chips are available for purchase from this group buy.
Will resume after the board being designed is tested.

I cannot wait to see what we will have

we might have our asic before BFL ships my singles.

[dwdoc]

Chris99 at BFL forum is quoting a price of $240 per board which will accept up to 8 chips. I just sent him my sample chips for testing. I think the more BFL clone options we have the better...

https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html

[Lucko]

Chris99 at BFL forum is quoting a price of $240 per board which will accept up to 8 chips. I just sent him my sample chips for testing. I think the more BFL clone options we have the better...

https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html

Yes but I think it will not work with more then 4... They are using BFL Jalapeno board with no changes from what I can see. Not that we are taking much different route... But we did modify power supply to handle 50% more... And the price is a good deal for them If BFL send this board with housing, 2 chips and power supply for 273$... And you can get it 25% off...

[bitpop]

I trust lucko

[dwdoc]

My understanding is the $240 includes just the board cost and chip installation. Cooling installation cost is about $30. Chip cost and psu not included. Also his board has not been tested yet.

[dwdoc]

I have requested 70 sample chips already.

Out of curiosity how did you do it? Mail? Do you have any direct phone number? I can't get replay from them even after ordering 200 chips...

Lucko, have you got your sample chips yet? If not pm me for contact info.

[Lucko]

Yesterday I got a conformation that I'm in line for them... The problem is that it should be shipped already. But we are not at point where this is a real problem since we are still finalize the BOM for the board(BFL didn't give the full list). And there is a small problem with automatic pick and place that is just not accurate enough for mounting this ASIC chips. So we are currently looking for a different solution... It will probably had to be done with manual pick and place unit... I have no idea why this is more accurate but I believe the experts know what they are talking about...

In case we need them I will send you a msg... For now I'm in line for 6 of them but to see full board working 2 more would help. And some might end up "destroy"... They can't be removed from the board once mounted...

EDIT: If you know about someone who did BOM for BFL plate can you send me his way...

[CanaryInTheMine]

This is interesting:

http://www.geek.com/chips/usb-3-5-set-to-arrive-in-early-2014-with-10gbps-transfer-speeds-1558005/

http://www.geek.com/chips/upcoming-usb-superspeed-3-0-will-let-you-ditch-the-power-adapter-1552834/

[bitpop]

At those watts I'd rather use dedicated psu than get a 2000 watt psu.

[chris99]

Chris99 at BFL forum is quoting a price of $240 per board which will accept up to 8 chips. I just sent him my sample chips for testing. I think the more BFL clone options we have the better...

https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html

Yes but I think it will not work with more then 4... They are using BFL Jalapeno board with no changes from what I can see. Not that we are taking much different route... But we did modify power supply to handle 50% more... And the price is a good deal for them If BFL send this board with housing, 2 chips and power supply for 273$... And you can get it 25% off...

Hi Lucko,

Thank you for your comment.

We use BFL's Single board which it can mount up to 8 chips.

The microcontroller connects all the ASIC in parallel. Also, Voltage specification for every chip is same
and current requirement is 100mA max. Means, in the peak load, the chips will draw 800 (8X100 mA),
thus no reason to increase power supply. I am sure that know that increasing the power supply,
sometimes, has a risk to fry the chips.

Boards cost $240 each including mounting of the chips, but without cooling system. I believe that it is one of the most
competitive prices in the market, considering how sophisticated and expensive is the manufacturing of the boards plus the
assembly cost of the ASICs which needs specific requirements and it is very risky for damaging these delicate chips to be done by hand.

More info
here:   https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html

Soon we will upload a photo of our boards!
Next week, boards will be ready and then they will need few more days for the assembly and the mounting of the sample chips.

Cheers,

Chris

[CanaryInTheMine]

Chris99 at BFL forum is quoting a price of $240 per board which will accept up to 8 chips. I just sent him my sample chips for testing. I think the more BFL clone options we have the better...

https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html

Yes but I think it will not work with more then 4... They are using BFL Jalapeno board with no changes from what I can see. Not that we are taking much different route... But we did modify power supply to handle 50% more... And the price is a good deal for them If BFL send this board with housing, 2 chips and power supply for 273$... And you can get it 25% off...

Hi Lucko,

Thank you for your comment.

We use BFL's Single board which it can mount up to 8 chips.

The microcontroller connects all the ASIC in parallel. Also, Voltage specification for every chip is same
and current requirement is 100mA max. Means, in the peak load, the chips will draw 800 (8X100 mA),
thus no reason to increase power supply. I am sure that know that increasing the power supply,
sometimes, has a risk to fry the chips.

Boards cost $240 each including mounting of the chips, but without cooling system. I believe that it is one of the most
competitive prices in the market, considering how sophisticated and expensive is the manufacturing of the boards plus the
assembly cost of the ASICs which needs specific requirements and it is very risky for damaging these delicate chips to be done by hand.

More info
here:   https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html

Soon we will upload a photo of our boards!
Next week, boards will be ready and then they will need few more days for the assembly and the mounting of the sample chips.

Cheers,

Chris

If you are indeed just taking the board that BFL released and think you will just plop 8 chips on it, you're gonna fail and upset alot of people who you're trying to get to spend money with you.
you need to do your research.

[chris99]

Chris99 at BFL forum is quoting a price of $240 per board which will accept up to 8 chips. I just sent him my sample chips for testing. I think the more BFL clone options we have the better...

https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html

Yes but I think it will not work with more then 4... They are using BFL Jalapeno board with no changes from what I can see. Not that we are taking much different route... But we did modify power supply to handle 50% more... And the price is a good deal for them If BFL send this board with housing, 2 chips and power supply for 273$... And you can get it 25% off...

Hi Lucko,

Thank you for your comment.

We use BFL's Single board which it can mount up to 8 chips.

The microcontroller connects all the ASIC in parallel. Also, Voltage specification for every chip is same
and current requirement is 100mA max. Means, in the peak load, the chips will draw 800 (8X100 mA),
thus no reason to increase power supply. I am sure that know that increasing the power supply,
sometimes, has a risk to fry the chips.

Boards cost $240 each including mounting of the chips, but without cooling system. I believe that it is one of the most
competitive prices in the market, considering how sophisticated and expensive is the manufacturing of the boards plus the
assembly cost of the ASICs which needs specific requirements and it is very risky for damaging these delicate chips to be done by hand.

More info
here:   https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html

Soon we will upload a photo of our boards!
Next week, boards will be ready and then they will need few more days for the assembly and the mounting of the sample chips.

Cheers,

Chris

If you are indeed just taking the board that BFL released and think you will just plop 8 chips on it, you're gonna fail and upset alot of people who you're trying to get to spend money with you.
you need to do your research.

Thanks for the comment.
I absolutely agree with you, that the board that BFL released nobody can manufacture it as it is, as many pieces of the puzzle are missing.

We used BFL's design with some modifications. We are a group of engineers working in that project during the last month
and we have a lot of experience and facilities in the place we work to manage this project. The boards are already in the manufacturer
and we are waiting for both sample chips and boards to test them together and upload a video of our results.

Cheers,

Chris

[Lucko]

Last time you told on BFL formu that you are using slightly modified(from picture looked the same) board BFL relised but that is not Single but Jalapeno... And as far as I know BFL failed to use it for anything else then Jalapeno. As far as I know they don't use it in a Single. And Single is 16 chip board not 8...

EDIT: You are lucky that you only have 2 chips It will work...

[chris99]

Thanks for your comment.

You dont have to modify the PCB, which is in the picture.
The PCB is the same for boards from 1-8 chips.
The components are different and we modified them accordingly.

Our board is designed to work with up to 8 chips.
Singles have 16 chips as you very well said and mini singles have 8. 

Cooling will be challenging as they are many asics in close proximity, but
with the right cooling system can be managed successfully.

Cheers,

Chris