[ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING***

[buzzdave]

Also I can buy chips from u in 10 chip lots from July. Are u guys releasing the board spec?

Yes, the Intron/C-scape boards designed for 100TH will be provided to large chip buyers.  Chip pinouts and some application notes also available.  I'm sure you could get some input from Intron/C-scape and Bitfury if you bought a reel.

[EDIT] BOM also available.

So if I purchased 10 or 100 chips I may not get the board design and have to work my own out?

I'm pretty sure we'll open source the design regardless.  Let me confirm this with Tytus before posting anything...

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[papaminer]

watching this as well...

[filharvey]

Also I can buy chips from u in 10 chip lots from July. Are u guys releasing the board spec?

Yes, the Intron/C-scape boards designed for 100TH will be provided to large chip buyers.  Chip pinouts and some application notes also available.  I'm sure you could get some input from Intron/C-scape and Bitfury if you bought a reel.

[EDIT] BOM also available.

So if I purchased 10 or 100 chips I may not get the board design and have to work my own out?

I'm pretty sure we'll open source the design regardless.  Let me confirm this with Tytus before posting anything...

Watching, if I have board design I can use
will be ordering

[jimrome]

I do wonder if the setup instructions, provide cooling info. No mention of fans in the description.

We undervolted the boards for heat & power considerations.  No heatsinks are necessary, though we do expect supplemental fan cooling to be necessary - they put off about 250 - 300w fully loaded, so yeah you need to blow air on them.  We didn't see the need for extensive heatsinks and individual fans that just add cost, maintenance and noise.

Hi, can you please clarify what the power consumption stated above refers to? I'm confused as other posts refer to 40W per 25GH/s board.

[buzzdave]

I do wonder if the setup instructions, provide cooling info. No mention of fans in the description.

We undervolted the boards for heat & power considerations.  No heatsinks are necessary, though we do expect supplemental fan cooling to be necessary - they put off about 250 - 300w fully loaded, so yeah you need to blow air on them.  We didn't see the need for extensive heatsinks and individual fans that just add cost, maintenance and noise.

Hi, can you please clarify what the power consumption stated above refers to? I'm confused as other posts refer to 40W per 25GH/s board.

We were trying to be conservative and set expectations safely for power consumption.  At this point we are confident that each H-board pulls 15w.  I still have yet to see the final number as measured on the M-board, so we won't update specs until we have that.

[dracore]

It says the kit can be rackable.  How do you do that?  Specifically where can you find a frame that can hold the boards?

[bkpduke]

Any good cases in the works for these?  Something you could add up to 16 boards and you expand out the setup?

[crazyates]

tom.

What the  

Did I say something wrong?

Long story.  Did you mean tom like "tomorrow", or tom like "Tom"

Tomorrow lol

Ahaha! That just made me chuckle.

[polrpaul]

August delivery means by August 31st.  This isn't an exact science, so I'm trying to give realistic dates.  I hope to exceed expectations on that.  I'm 100% confident in this team and the product.  There's been so much development in the last 6 - 9 months that has been kept totally under wraps.  By sending our chips out into the forum community we've got independent verification that they work - Intron and C-scape were able to tweak their Avalon design and already have Bitfury's chip hashing.

Here's the thread for that development effort: https://bitcointalk.org/index.php?topic=228677.0.

I have deployment for the 100TH mine (https://picostocks.com/stocks/view/19) from late July into August.  I have to reserve time & energy for that project.  I want to keep expectations realistic and not overpromise on the hosting side.  Its no mean feat to host 5,000 of these H-boards.

As confident as you were with Tom's bASIC?   

[slightboyme]

Based on 25% difficulty increase each adjustment, my calculation shows we can only get 75% investment back in 3 months, 95% in 6 months, based on current BTC/USD price. Does anyone else get the same result?

[nrd525]

Regarding the FCC and Electromagnetic Interference, you can probably do a very cheap test using an AM and FM radio (or one with shortwave as well - like the Tecsun PL 380 which has an excellent voltage signal meter).   Ex. I found a badly built LED light bulb from Ebay to have horrible am/fm noise.

Other than that, avoid switching power supplies (or ensure they are properly filtered), and check out the "pin one problem".  Putting the entire thing in a solid metal case (minimal openings) should also be very helpful.
http://pin1problem.com/

[Bogart]

Why is the 16 chip board rated to deliver 25GH/s when the chip description claims "Demonstrated performance 2.7 GH/sec @ 0.835V (0.8W/Ghps)".

Shouldn't a 16 chip board deliver 43.2GH/s?

[Sitarow]

I do wonder if the setup instructions, provide cooling info. No mention of fans in the description.

We undervolted the boards for heat & power considerations.  No heatsinks are necessary, though we do expect supplemental fan cooling to be necessary - they put off about 250 - 300w fully loaded, so yeah you need to blow air on them.  We didn't see the need for extensive heatsinks and individual fans that just add cost, maintenance and noise.

I notice the the PCB's in the photo are 2 layers. Avalon PCB's are 4 layers giving more copper to grab the heat.

Do you know if you plan on OCing these units at all?

Edit: Never Mind they are 4 layers.



From what I can tell there is no room to install a heatsink as it seems they will be stacked close together once the H-CARD are attached to the M-CARD.

FYI I ordered an Aug device.

[cryptograd]

You should only accept BTCitcoin

[kaerf]

Why is the 16 chip board rated to deliver 25GH/s when the chip description claims "Demonstrated performance 2.7 GH/sec @ 0.835V (0.8W/Ghps)".

Shouldn't a 16 chip board deliver 43.2GH/s?

The chips are undervolted, but have been tested upto 2.7Gh/s https://bitcointalk.org/index.php?topic=228677.msg2568673#msg2568673.

Might be possible to modify board of higher voltage: https://bitcointalk.org/index.php?topic=250249.msg2664346#msg2664346

[agath]

Hello Dave!

I just wanted to say a few words: well done!

I wish you good luck with your business, and (I am becoming un-polite here, but I can't resist :-) ) let's kick BFL's balls!

[buzzdave]

August delivery means by August 31st.  This isn't an exact science, so I'm trying to give realistic dates.  I hope to exceed expectations on that.  I'm 100% confident in this team and the product.  There's been so much development in the last 6 - 9 months that has been kept totally under wraps.  By sending our chips out into the forum community we've got independent verification that they work - Intron and C-scape were able to tweak their Avalon design and already have Bitfury's chip hashing.

Here's the thread for that development effort: https://bitcointalk.org/index.php?topic=228677.0.

I have deployment for the 100TH mine (https://picostocks.com/stocks/view/19) from late July into August.  I have to reserve time & energy for that project.  I want to keep expectations realistic and not overpromise on the hosting side.  Its no mean feat to host 5,000 of these H-boards.

As confident as you were with Tom's bASIC?   

First Flame!

[buzzdave]

Amazon has my emails freed up now - message me if you *did not* get your email when you ordered.

[buzzdave]

Independent (aside from Intron & C-scape's) verification  of the bitfury chip just posted over on the dev thread.  Shows a pic of a single chip tester board designed by Intron, with screen full of accepted hashes...

https://bitcointalk.org/index.php?topic=228677.msg2677551#msg2677551

[tom99]

Anyone know if safe to order with CC and site didnt use encrypted?