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Topic: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! - page 38. (Read 176729 times)
July 11, 2013, 11:00:56 AM
July 11, 2013, 10:39:43 AM
Here is a video of the BitFury ASIC running:
https://bitcentury.io/blog/bitfury-asic-in-action
https://bitcentury.io/blog/bitfury-asic-in-action
July 09, 2013, 06:40:19 AM
Upcoming tests will include use of an external clock and chaining of boards.
That`s that I want to do at first time but still wait any news about chip samples program from tytus. 
I`ll be wait your new blog post with test results.
July 09, 2013, 06:11:48 AM
Hi All,
We received our prototype PCBs today, and made some very good progress with testing of our BitFury ASIC samples:
https://bitcentury.io/blog/initial-testing-of-bitfury-asic
Upcoming tests will include use of an external clock and chaining of boards.
---
Nigel / BitCentury
We received our prototype PCBs today, and made some very good progress with testing of our BitFury ASIC samples:
https://bitcentury.io/blog/initial-testing-of-bitfury-asic
Upcoming tests will include use of an external clock and chaining of boards.
---
Nigel / BitCentury
July 07, 2013, 11:27:08 PM
Its working alright.
Nice. The bitfury schematic shape looks rather familiar...
intron
July 07, 2013, 07:00:06 PM
Its working alright.
July 06, 2013, 05:39:54 PM
For raspi owners, please try my modification of cgminer:
https://github.com/legkodymov/cgminer
I compile it with:
./autogen.sh --enable-bitfury --disable-opencl --without-curses
make
It can be executed with similar command:
sudo ./cgminer -o stratum+tcp://stratum.bitcoin.cz:3333 -u legkodymov.worker1 -p YeDRuvbg --debug
Miner is based on Bitfury's spitest code. Oscillator and SPI freq are hard coded.
Please, post results back!
https://github.com/legkodymov/cgminer
I compile it with:
./autogen.sh --enable-bitfury --disable-opencl --without-curses
make
It can be executed with similar command:
sudo ./cgminer -o stratum+tcp://stratum.bitcoin.cz:3333 -u legkodymov.worker1 -p YeDRuvbg --debug
Miner is based on Bitfury's spitest code. Oscillator and SPI freq are hard coded.
Please, post results back!
July 05, 2013, 12:55:52 PM
Bitfury chip sales are not in the pipeline. Chips are designated for sale only to Metabank and 100TH as far as we know.
Do you guys know about this:
http://www.bitfurystrikesback.com/shop/
Is that legit?
Bitfury posted that link on Russian forums, so seems pretty legit.
So chips ARE for sale to the general public. Man, it's about to get crazy difficult to find a block.
At 80 euro/chip, I don't see them flying off the shelves. Would be interesting to see if 1000 euro boards sell, as they seem like the "sweet spot" in terms of risk/reward/ease of use/time to market of their products.
July 05, 2013, 11:46:07 AM
Bitfury chip sales are not in the pipeline. Chips are designated for sale only to Metabank and 100TH as far as we know.
Do you guys know about this:
http://www.bitfurystrikesback.com/shop/
Is that legit?
Bitfury posted that link on Russian forums, so seems pretty legit.
So chips ARE for sale to the general public. Man, it's about to get crazy difficult to find a block.
July 05, 2013, 10:55:14 AM
Bitfury posted that link on Russian forums, so seems pretty legit.
July 05, 2013, 10:51:07 AM
Bitfury chip sales are not in the pipeline. Chips are designated for sale only to Metabank and 100TH as far as we know.
Do you guys know about this:
http://www.bitfurystrikesback.com/shop/
Is that legit?
July 05, 2013, 08:57:08 AM
2 or 3 chip USB board should be possible?
July 05, 2013, 07:56:19 AM
230 MHz and 0.84 V requires quite aggressive cooling. The (small) test board had a small heatsink soldered on the bottom (originally for D2PAK), and a small fan aimed at it. Board temperature was about 50 deg C.
I should be getting test chips shortly and was planning on using an FPGA as an external clock generator such that the rise/fall/hold/etc can be tuned. Should be able to push > 200mhz single ended off of a virtex 6. I saw posts earlier that showed power consumption waveforms while running off of the internal oscillator. I'd be interested in seeing how the two waveforms line up in order to make better guesses at the initial parameters for said clock generator and potentially what its weaknesses are. As it turns out all of the function generators I have don't go much higher than 200mhz single ended. Shame its not differential.
July 05, 2013, 06:11:44 AM
230 MHz and 0.84 V requires quite aggressive cooling. The (small) test board had a small heatsink soldered on the bottom (originally for D2PAK), and a small fan aimed at it. Board temperature was about 50 deg C.
July 05, 2013, 05:58:51 AM
What's the power usage operating at this speed?
The chip is running at 0.84V and 2.5A, with a clock of 230MHz.
What kind of cooling is being done at 230MHz and >2GH/s?
July 03, 2013, 06:23:10 AM
There is at least an intent to put them in the hands of those able to mass produce low cost miners. The danger of selling in an open market is one person will buy them all, and keep them for themselves.
July 03, 2013, 01:15:39 AM
Bitfury chip sales are not in the pipeline. Chips are designated for sale only to Metabank and 100TH as far as we know.
July 02, 2013, 03:50:50 PM
Bitfury is so badass! Now let's see if chip-sales are in the pipeline. I would LOVE to get my hands on some early chips for a DIY Project 
July 02, 2013, 03:46:43 PM
intron You were using 15 ceramic capacitors around the chip and 3 electrolytic. Could you tell the nominals?
The small 0402 ceramics are 1U/6V3/X5R types.
The 'ecaps' are merely space holders for bigger caps
to be placed there. I was in a hurry, so I chose
a nice, large footprint that could hold many types
of capacitors. Just put something there, say a
22U or 47U ceramic or something.
intron
July 02, 2013, 02:49:33 PM
intron You were using 15 ceramic capacitors around the chip and 3 electrolytic. Could you tell the nominals?
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