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

[tom99]

Dave, any chance we can get an update soon?  The price of BTC is making the natives restless.  We have bitcoin burning holes in our pockets and we want to throw them at you!   

  +1

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[CoinHoarder]

He's probably pretty busy trying to get the 200 Th mine up to speed.

I think he said the next round of deliveries will be delivered in December, so I imagine he'll open up sales here shortly.

[CoinHoarder]

ghash.io is good if you have group buyers who own a share of the ghash.  You can set a payout address based on their % of the hash rate.

I didn't know that. Thanks for the heads up, I'll check it out.

[Odi]

Just wanted to add my positive experience, since forums tend to get filled with negative experiences:

I received my full kit order on Nov 5 and put it to work as soon as I could.  I encountered many problems as others have described on here with boards cycling to 0, even with 2x200mm 166cfm fans moving air through.  I kept rearranging boards to minimize the SPI errors from dragging other boards down, until I was left with 8 cycling boards and 1 EOL board (only 11/16 chips detected).  I do believe there are still 4 buses, since the EOL board only brought down slots 6 and 7 with it when it was in 5 at the beginning.  I was only getting somewhere between 200 - 300 GH/s as boards kept cycling.

My heatsinks finally arrived on Nov 6, and I put them on the back of all the regulators except the EOL board.  This stabilized most of the boards, leaving only 2 cycling boards and 1 EOL board.  This stabilized my hash rate to about 31-33GH/s per board.  That was roughly 450GH/s with 2 boards cycling on and off and the EOL at about 22GH/s.  It dropped to a bit less than 400GH/s during the day when the room temp got warm, when 2 other boards started cycling for a total of 4 cycling boards.

On Nov 8, I finally found time to put heatsinks behind all the chips except the EOL board, and this stabilized all the cycling boards.  Each board was getting 33-35GH/s and I was getting a stable 530GH/s.  On Nov 9, I moved it to its permanent home where the temp is 10F less than my testing area, and I have been getting a stable 580GH/s (36-38GH/s per board, 25GH/s EOL board)

I think the following quote from punin is exactly why so many are having problems in this thread in the past few days, these cards are going to be unstable unless you have adequate cooling or turn down the pot setting.  I needed heatsinks at both the regulator and chips in order to get all the boards stable (some were stable with only air cooling, some needed heatsink at the regulator, and some needed heatsinks at the chips)

We have been testing the new M-boards and H-cards today and they seem to work ok, but are running quite hot with the factory pot settings. Max clock speed is 52 to avoid overloading the regulator. We are not comfortable shipping this product yet without further testing and perhaps changing the pot to lower core voltage setting. (which is really slow to do manually, so we need to ask the factory to do this).

[goxed]

Dave, any chance we can get an update soon?  The price of BTC is making the natives restless.  We have bitcoin burning holes in our pockets and we want to throw them at you!   

Credit card processing will make it even better

[tacotime]

Soooo... MegaBigPower fedex'd me another H-board despite me e-mailing them a week ago telling them not to.

How to proceed

[klondike_bar]

Soooo... HashFast fedex'd me another H-board despite me e-mailing them a week ago telling them not to.

How to proceed

i assume you mean megabigpower/bitfury?

ill buy your h-board for $400, shipped to toronto

[Swimmer63]

I have a couple h-boards I can't use.
https://bitcointalk.org/index.php?topic=333237.0

[Trongersoll]

I have a couple h-boards I can't use.
https://bitcointalk.org/index.php?topic=333237.0

These are slotted, so which version MB do they require?

[tacotime]

Soooo... HashFast fedex'd me another H-board despite me e-mailing them a week ago telling them not to.

How to proceed

i assume you mean megabigpower/bitfury?

ill buy your h-board for $400, shipped to toronto

Yeah, it's been a long day

[tom99]

Soooo... HashFast fedex'd me another H-board despite me e-mailing them a week ago telling them not to.

How to proceed

i assume you mean megabigpower/bitfury?

ill buy your h-board for $400, shipped to toronto

   I dont think he/she can't sell it and belong to Hboard Dave.

[tom99]

I have a couple h-boards I can't use.
https://bitcointalk.org/index.php?topic=333237.0

These are slotted, so which version MB do they require?

  these hboards need V3 mboard.

[mb300sd]

24 hours stable now, but my house is freezing! Good news is the oil immersion cooling is almost done, going to have the radiator outside, we'll see how fast these babies can go when their below freezing.

[Trongersoll]

Is anyone besides me worried that they may not make any more H boards for the v1-2 MBs?

[dentldir]

Since the design files for the V1 H-cards are now open, I suppose anyone could start making them.  I believe goxed is researching exactly that.

But yes, it would be nice to be able to populate empty slots easily if you bought a starter kit.

[Lloydimiller4]

Also, I believe Punin is selling them on the bitfury strikes back web site.

I now have almost all of my cards working properly. Its been a major pain in the ass to do so though. I've spend hours individually heatsinking each H-board and I had to get a lot of high CFM fans to make it work. I also noticed some pools don't show the true hashrate properly.

I'm looking forward to see what kind of hardware mods are chosen to get the most juice out of these.

24 hours stable now, but my house is freezing! Good news is the oil immersion cooling is almost done, going to have the radiator outside, we'll see how fast these babies can go when their below freezing.

I'd love to see some pictures of that!

Is it possible to use 1x-1x risers on these cards? I feel like they might be easier to cool if i could get them off the M-board

I'll post some pics of my rigs once I get everything to 100%

[Swimmer63]

Is anyone besides me worried that they may not make any more H boards for the v1-2 MBs?

I can tell you they do have v1.2 cards in stock.  They are not selling them at the moment, but you can get replacements.  So they have some.  I do agree though that they may be a low priority for new production.

[klondike_bar]

Is it possible to use 1x-1x risers on these cards? I feel like they might be easier to cool if i could get them off the M-board

I would advise against it, as it may lead to cross-talk and potentially much higher error rates

[salfter]

I've put up an SD-card image with bfgminer (patched to run the Bitfury ASICs at speed 52) and support for the Coldtears USB LCD.  It also is set to use DHCP to grab an IP address instead of whatever weirdness was used to put it on x.x.x.249.  Get it here:

https://dl.dropboxusercontent.com/u/57535575/bitfury-sd-card-customized-2.img.xz

Sums:

• MD5: d6be21c235570ed133c38cd101621b82
• SHA256: 6e2afe48bcba7f6e049547bdfb7b1662752a110a1ef12e36a453745feda974fb

Once it's downloaded, write it to a 4GB or larger card with something like this (change the destination device as appropriate):

Code:

xzcat bitfury-sd-card-customized-2.img.xz | dd if=- of=/dev/sdg bs=512

If you have a USB SD-card reader, a second card, and enough free space on your existing card, you can even download and unpack this image on your miner's RPi...could be useful if you don't have another Linux box on hand:

Code:

wget https://dl.dropboxusercontent.com/u/57535575/bitfury-sd-card-customized-2.img.xz
xzcat bitfury-sd-card-customized-2.img.xz | dd if=- of=/dev/sda bs=512

Passwords are the same as the original image: the root password is root, the password for pi is raspberry.  I left the bfgminer source tree (pulled from GitHub) in ~pi/bfgminer.  bfgminer and bfgmonitor.py (for the LCD) are started on boot.  Make sure you edit ~pi/bfgminer.conf to put in your pool credentials, unless you want me to get your mining output!

[mb300sd]

I've put up an SD-card image with bfgminer (patched to run the Bitfury ASICs at speed 52) and support for the Coldtears USB LCD.  It also is set to use DHCP to grab an IP address instead of whatever weirdness was used to put it on x.x.x.249.  Get it here:

https://dl.dropboxusercontent.com/u/57535575/bitfury-sd-card-customized-2.img.xz

Sums:

• MD5: d6be21c235570ed133c38cd101621b82
• SHA256: 6e2afe48bcba7f6e049547bdfb7b1662752a110a1ef12e36a453745feda974fb

Once it's downloaded, write it to a 4GB or larger card with something like this (change the destination device as appropriate):

Code:

xzcat bitfury-sd-card-customized-2.img.xz | dd if=- of=/dev/sdg bs=512

If you have a USB SD-card reader, a second card, and enough free space on your existing card, you can even download and unpack this image on your miner's RPi...could be useful if you don't have another Linux box on hand:

Code:

wget https://dl.dropboxusercontent.com/u/57535575/bitfury-sd-card-customized-2.img.xz
xzcat bitfury-sd-card-customized-2.img.xz | dd if=- of=/dev/sda bs=512

Passwords are the same as the original image: the root password is root, the password for pi is raspberry.  I left the bfgminer source tree (pulled from GitHub) in ~pi/bfgminer.  bfgminer and bfgmonitor.py (for the LCD) are started on boot.  Make sure you edit ~pi/bfgminer.conf to put in your pool credentials, unless you want me to get your mining output!

Could you post your script to start bfgminer on boot (hopefully inside screen) I couldn't get it working in rc.local, although I admit not trying that hard.