Topic: [Group Buy] BFL ASICs, + Board Design Underway. - page 7. (Read 15461 times)
How far are we from taking the orders? And what about shipping to EU?
It also looks like they leave the chip thermal diodes unconnected, perhaps there is an issue with them.
I have been reviewing the documentation as well as my own plans, and it seems like the cost of assembly and parts for a 4-6 chip miner with good headroom (similar to the power delivery capability of BFL's reference Jalapeno or 1/2 of a Longboard) would be in the range of $200, plus whatever heatsink is used. Commodity heatsinks capable of cooling 60W without a problem aren't terribly expensive though, a CM Hyper212 or similar is overkill and those are easy to find for less than $30. The exact price will depend on quantities, but I would estimate that at this time that price won't be off by more than 50%.
I should know better on the price as the design gets finalized and the number of people becomes clearer.
I have been reviewing the documentation as well as my own plans, and it seems like the cost of assembly and parts for a 4-6 chip miner with good headroom (similar to the power delivery capability of BFL's reference Jalapeno or 1/2 of a Longboard) would be in the range of $200, plus whatever heatsink is used. Commodity heatsinks capable of cooling 60W without a problem aren't terribly expensive though, a CM Hyper212 or similar is overkill and those are easy to find for less than $30. The exact price will depend on quantities, but I would estimate that at this time that price won't be off by more than 50%.
I should know better on the price as the design gets finalized and the number of people becomes clearer.
PCB scematics released
https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html
https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html
Looks like they did via in BGA pad. Why?
Heat propagation?
intron
Yes, heat transfer would be my guess.
PCB scematics released
https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html
https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html
Looks like they did via in BGA pad. Why?
Heat propagation?
intron
PCB scematics released
https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html
Anyone figured out how expensive it would be to build and populate a clone board? https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html
PCB scematics released
https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html
https://forums.butterflylabs.com/announcements/3295-bitforce-sc-pcb-schematics.html
Interested. Are there any shipping limitations? Slovenia, EU?
EDIT: not sure if you have this data but how much is necessary to pay at once? Full or half price?
EDIT: not sure if you have this data but how much is necessary to pay at once? Full or half price?
I'm interesting. Please add me to the list.
Assembled them in Taiwan would be cheap!
[Edit]
Have 16 chips credit.
I will. As I said, I am investigating options for assembly. It's a balance between getting a better price and the extra time it would take to ship the chips to Taiwan/China and then have them shipped back to us for distribution. It will depend on the savings, I don't think many miners would want to save $5 or $10 on a board if it adds a week to the leadtime. Assembled them in Taiwan would be cheap!
[Edit]
Have 16 chips credit.
Interested in a small 8-12 chip buy. But would like to see more concrete movement on miner design and manufacture.
What country are you based in?
Interested but I would like to see faster units. Using CPU coolers is a great idea. I've got chip credits for over 1TH.
I'm extremely interested in the board designs... willing to share costs and workload to help this eventuate...
I have 32 credits for sale at 6btc. PM me.
I'm interested... I'll jump on board if/when chips are proven to be shipping.
I'm interesting. Please add me to the list.
Assembled them in Taiwan would be cheap!
Update:
Have 32 chips credits not 16.
Assembled them in Taiwan would be cheap!
Update:
Have 32 chips credits not 16.
What will the cost be for PCB assembly?
Unknown at this point, though we should have an answer soon. We're still getting quotes on things like the PCBs and assembly. It should be very competitive on a per hash basis with other board offerings though.
What will the cost be for PCB assembly?
Major changes to the OP in light of the new information from BFL. I am now officially opening this group buy to the public and will begin taking orders.
I have 34 chips credits and I'm interested in this group buy. How would be the credit transfer?
There is an estimate price for the production boards?
There is an estimate price for the production boards?
I've got some chip credits to put toward a group buy and am interested ~32 chips. Is this the only BFL chip group buy thread at the moment?
Well, there's this one: https://bitcointalksearch.org/topic/65-nm-chips-bfl-accepted-100-escrow-by-john-k-group-buy-1-kernel32-223571 , where the OP was trying to hold BFL's feet to the fire with regard to delivery and terms. Seems he was making some progress, too, but now, with ones accepting the original 50% pre-buy maybe but probably not escrow terms, BFL has no reason to accept those more customer-safe terms.That's okay, IMHO, because there are enough horses coming onto the track that nobody has to pick one they don't think is the one that's going to win.
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