Does this mean the 400GH/s kit can made to easily go up to 640GH/s? What's required to do this? Changing some resistors and crystals?
Topic: [ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING*** - page 223. (Read 576936 times)
July 24, 2013, 03:55:04 PM
July 24, 2013, 03:40:03 PM
Will someone please make these for us less technical schmucks.
July 24, 2013, 03:22:43 PM
This is looking more and more fun by the minute. Can't wait until these goodies arrive in my hand. 
July 24, 2013, 02:56:26 PM
First prototype of Bitfury S-HASH board is hashing:
Features:
If you don't have the budget for a large number of chips, overclocking is the best option, as it will get you 40GH/sec out of a card (probably more with better cooling), instead of 25GH for a standard H-CARD for the same 16 chips. At 40GH/sec, the card uses about 35 Watts, running off a standard 12V DC supply.
Features:
- 16 Bitfury ASIC capacity
- Adjustable (through 0805 SMT resistor) voltage regulator between 0.7 and 0.9V
- Core voltage regulator has 50A capacity, so chips can be overclocked.
- On-board ARM Cortex M3 processor with standard RJ-45 100 Mbps Ethernet port.
- Built-in mining software can operate stand-alone. No PC or Raspberry PI needed, just an internet connection.
- TCP/IP stack with DHCP and DNS support. Just fill in pool server name, port number, username and password.
- Support for Stratum and backup mining pools.
- Built-in small webserver for chip status/speed reports.
- PCB temperature sensor, could be used for automatic shutdown when temperature gets too high.
If you don't have the budget for a large number of chips, overclocking is the best option, as it will get you 40GH/sec out of a card (probably more with better cooling), instead of 25GH for a standard H-CARD for the same 16 chips. At 40GH/sec, the card uses about 35 Watts, running off a standard 12V DC supply.
40GH/s with only PC fans blowing onto the chips and no heat sink! Wow!
July 24, 2013, 12:42:33 PM
happy bday, dave.
July 24, 2013, 12:16:03 PM
For those of you planning heatsinks, Intron provides a good reference.
http://imgur.com/gUMVK0b
PS: You are looking thru the board from the top side.
Don't make the 'mirror error' too often made:) --Intron
http://imgur.com/gUMVK0b
PS: You are looking thru the board from the top side.
Don't make the 'mirror error' too often made:) --Intron
Hi Dave,
I know this is an old post, but just needed to confirm something: the image at the link you included above shows 6 mounting holes on the PCB whereas the PCB in the picture in this link https://bitcointalksearch.org/topic/m.2676985 seems to have none.
Which is accurate? I assume that the photograph is of a prototype PCB which predated the mounting holes, but I'd like to know for sure. Thanks.
July 23, 2013, 12:51:29 PM
buzzdave how are you saying on site is 12k reduce to 8,000 when the price was 7500 or are you a re seller with your own prices set asides and different.
Are you sure you aren't confusing 7500 euros on the European site with the USD price on this US based site?
July 22, 2013, 07:21:39 PM
buzzdave how are you saying on site is 12k reduce to 8,000 when the price was 7500 or are you a re seller with your own prices set asides and different.
July 22, 2013, 07:14:03 PM
Darn, $541 in Ohio now. Lol
you have to logon and price still 500US for Hboard.
Duh, thanks.
July 22, 2013, 07:12:09 PM
I turned off the "Display Prices with Tax" feature. Sorry for the confusion.
July 22, 2013, 06:55:28 PM
Darn, $541 in Ohio now. Lol
you have to logon and price still 500US for Hboard.
July 22, 2013, 06:35:29 PM
Darn, $541 in Ohio now. Lol
July 22, 2013, 05:45:31 PM
July 22, 2013, 03:01:05 PM
if you guys dont want to pay tax better to get it now before Dave fixed it.
Store runs out of Washington State. You can't order as guest, but it will show prices w/tax for guests. You only get sales tax if your shipping address is in WA. That may change soon, as there are eCommerce rules coming that will require me to charge sales tax to everyone...
Dave
I am assuming this will not affect orders already placed, correct?
No I'm referring to some legislation in progress - it will take more time before I'll have to start complying.
July 22, 2013, 02:54:44 PM
if you guys dont want to pay tax better to get it now before Dave fixed it.
Store runs out of Washington State. You can't order as guest, but it will show prices w/tax for guests. You only get sales tax if your shipping address is in WA. That may change soon, as there are eCommerce rules coming that will require me to charge sales tax to everyone...
Dave
I am assuming this will not affect orders already placed, correct?
July 22, 2013, 02:49:07 PM
Store runs out of Washington State. You can't order as guest, but it will show prices w/tax for guests. You only get sales tax if your shipping address is in WA. That may change soon, as there are eCommerce rules coming that will require me to charge sales tax to everyone...
Dave
Dave
Not me hehe....
July 22, 2013, 02:11:12 PM
Thanks. Super useful answer.
Some of the commits in that git are minutes old. Heh.
Seems the board init is done over SPI, so all thats missing is a pin out for the card connector.
Some of the commits in that git are minutes old. Heh.
Seems the board init is done over SPI, so all thats missing is a pin out for the card connector.
July 22, 2013, 02:00:23 PM
if you guys dont want to pay tax better to get it now before Dave fixed it.
Store runs out of Washington State. You can't order as guest, but it will show prices w/tax for guests. You only get sales tax if your shipping address is in WA. That may change soon, as there are eCommerce rules coming that will require me to charge sales tax to everyone...
Dave
July 22, 2013, 01:12:01 PM
Thanks. Super useful answer.
Some of the commits in that git are minutes old. Heh.
Seems the board init is done over SPI, so all thats missing is a pin out for the card connector.
Some of the commits in that git are minutes old. Heh.
Seems the board init is done over SPI, so all thats missing is a pin out for the card connector.
July 22, 2013, 12:59:47 PM
Are specs available on the H-Board and how to interface with it directly? From reading the BF alpha tester thread it would seem that it uses SPI?
Thanks.
Thanks.
It uses SPI interface on the pi.
I stumbled upon https://github.com/legkodymov/cgminer .. no idea whos behind it or if it works or not. seems to be the cgminer fork theyd bundle with the pi. see the spidev.* and bitfury related files.
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