[ANN] Bitfury ASIC sales in EU and Europe

[RoadStress]

Impressive work! Good job Bitfury!

*image removed*

good job for who ? for sure not for us small miners ...

Good job for network security!

[philipma1957]

I quote air cooling stats because I have no rodent hindquarters to donate regarding immersion cooling. I want to play with these chips and I design for practical air cooling because that covers myself and all my target customers. I do not care at all what Bitfury builds for themselves or their millionaire buddies. That's my reason; can't speak for anyone else.

i do hope you get some to work with.

as always my 2 btc is always available to you if needed.

[jstefanop]

I quote air cooling stats because I have no rodent hindquarters to donate regarding immersion cooling. I want to play with these chips and I design for practical air cooling because that covers myself and all my target customers. I do not care at all what Bitfury builds for themselves or their millionaire buddies. That's my reason; can't speak for anyone else.

Indeed...and designing a power stage to deliver clean and effecient .3v power should be interesting haha, even at 5w were talking about near 20amps of current. The only way to achieve those efficiencies at that voltage level is with a chain design...otherwise your looking at less than 80% efficiency just at the buck at those voltages.

[klondike_bar]

I quote air cooling stats because I have no rodent hindquarters to donate regarding immersion cooling. I want to play with these chips and I design for practical air cooling because that covers myself and all my target customers. I do not care at all what Bitfury builds for themselves or their millionaire buddies. That's my reason; can't speak for anyone else.

Indeed...and designing a power stage to deliver clean and effecient .3v power should be interesting haha, even at 5w were talking about near 20amps of current. The only way to achieve those efficiencies at that voltage level is with a chain design...otherwise your looking at less than 80% efficiency just at the buck at those voltages.

Bitfury has been doing chain/string design since 55nm (they didnt sell many that i know of, but they did buid H-cards withvirtually no components other than the ASIC chips)

The first version had issues with chips overheating when one or more other chips completed work and returned to 'idle' before the next clockcycle/nonce


Probably safe to say they fixed it with the 14chip version that used rev2 55nm chips (at 0.45w/gh):


Even now, I am still tremendously impressed by the simplicity and functionality of the bitfury design. Id love to have some of the upcoming 16nm gear

[sidehack]

I've got a couple OneString cards and an NF6 in the museum, but I haven't actually run any of them. Always liked the design though, and I'm looking forward to seeing the chainability of the new chip.

[RichBC]

Even now, I am still tremendously impressed by the simplicity and functionality of the bitfury design. Id love to have some of the upcoming 16nm gear

Gotta say that is one nice clean simple layout. Was level shifting built into the ASIC's or are there components on the other side of the board?

Rich

[KNK]

I don't know why everyone keeps quoting "for air cooling", they'll design their systems to run with their ridiculous immersion cooling first and foremost. What is possible with air cooling is an afterthought and doesn't need to hit the same specs.

In the press release they have quoted numbers for both air-cooling and immersion cooling:

Chip delivers a minimum of 100 gigahash per second of computing power. On average, the BitFury 16nm ASIC can compute in the range of as high as 140 gigahash per second using air cooling, and up to 184 gigahash per second using immersion cooling

Was level shifting built into the ASIC's or are there components on the other side of the board?

No, those are just hashing boards, while the level shifters are on the masterboard.
I thing the BFSB miner was designed to chain few hashing boards using the same level-shifter. This is not possible with multiple string boards, but if the string board is the last one, you may still use non-string boards before it.
For strings should use a dedicated level-shifter for each string and RPi has enough pins for chip enable for up to 16 slots.

EDIT: 16 slots without using multiplexers as it was done in the Metabank's miners

[sidehack]

I think what he means is, since the chips are chained each is at a different local ground so chip-to-chip signalling might need to be shifted; is that handled internally?

[RichBC]

I think what he means is, since the chips are chained each is at a different local ground so chip-to-chip signalling might need to be shifted; is that handled internally?

Yes that was my question, just that the board looked to be so free of other components I wondered if they had integrated the level shifters for the chained signals into the chips as I think Bitmain has now done with the BM1385?

Rich

[KNK]

Well ... Yes and No
The board design itself takes care for the shifted grounds, not the chip, but the chip is helping thanks to the internal structure of the IO and IOREF

[philipma1957]

Would be very nice to see bitfury gear and or chips for regular folks.

[wttbs]

Would be very nice to see bitfury gear and or chips for regular folks.

I hope so too, last time we bought Rev2 chips price was way too high sure hope they ask normal prices.

[Micky25]

Chip delivers a minimum of 100 gigahash per second of computing power. On average, the BitFury 16nm ASIC can compute in the range of as high as 140 gigahash per second using air cooling, and up to 184 gigahash per second using immersion cooling

so one h-card will be 10/14/16 x 100 ghs = 1/1.4/1.6THs and 16 of these on a m-board will be 16/22.4/25,6THs?

[jstefanop]

I think what he means is, since the chips are chained each is at a different local ground so chip-to-chip signalling might need to be shifted; is that handled internally?

The beauty of this design is that the coms are chained as well, so chip to chip is already "auto" shifted. You can see all they have is just an external resistor divider network on the coms line. Of course the end nodes still need to be shifted, but in terms of serial chain design this is as simple as it gets.

[Mitak]

and easy to implement
as far I remember A1 chip from inno had this option too

[dropt]

Chip delivers a minimum of 100 gigahash per second of computing power. On average, the BitFury 16nm ASIC can compute in the range of as high as 140 gigahash per second using air cooling, and up to 184 gigahash per second using immersion cooling

so one h-card will be 10/14/16 x 100 ghs = 1/1.4/1.6THs and 16 of these on a m-board will be 16/22.4/25,6THs?

@ 0.06 J/GH 25.6TH on an MBoard would be 1.5kW.  Although possible, I think it's unlikely.

[sidehack]

And that's assuming it'll still be at 0.06J/GH at 100GH/s, which is unlikely.

[Micky25]

so a Bitfury 2015 16nm full kit could be around 20TH at a similar price as the 2013 October 400GHs kit: €7,500

[klondike_bar]

Chip delivers a minimum of 100 gigahash per second of computing power. On average, the BitFury 16nm ASIC can compute in the range of as high as 140 gigahash per second using air cooling, and up to 184 gigahash per second using immersion cooling

so one h-card will be 10/14/16 x 100 ghs = 1/1.4/1.6THs and 16 of these on a m-board will be 16/22.4/25,6THs?

@ 0.06 J/GH 25.6TH on an MBoard would be 1.5kW.  Although possible, I think it's unlikely.

m-boards originally had issues when pushed past 600W, but that was largely due to there only being 2xPCIe connections (and 300W/each is too much for most wirings). There is/was an extra pair of screw terminals though, which could likely handle 600W+ themselves.

If you used all the connections available, you could likely achieve up to 900-1200W, which require active cooling and likely heatsinks.

[Unacceptable]

Impressive work! Good job Bitfury!

*image removed*

good job for who ? for sure not for us small miners ...

Good job for network security!

Yep,the network is secure!!! By 3 or so corporate entities 

Bout time to find another ASIC resistant coin to use