Far from India being out of the game, every wealthy Indian is now examining Bitcoin and considering its utility in their wealth preservation plans.
LOL The FUD is strong in this one seriously  http://en.wikipedia.org/wiki/Indian_black_money |
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This was just a fun project to quickly cobble together working h-boards using Bitfury chips and blank h-boards. Each board uses a modded ISL8225M eval board regulator (0.84V), 16 chips and 16 capacitors and was hand soldered in 2hr.
Brilliant:) Thanks man  |
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nicely hacked together! Its amazing how simple the bitfury design is that without the need to convert 12V->0.9V the board is practically empty save for a few capacitors and the chips
these ASICs are highly integrated . The only PITA is debugging a really dead chip in the chain. |
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good job bro 1 BTC i buy  Will make a few for sale, once chips are in stock. Right now there are no chips in stock  |
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Are there any plans to sell chips on MBP online store anytime soon? Thanks
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Details will be posted soon. This is a just a placeholder.
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We have been working closely with BITMAIN to setup a US distribution branch. We are on track to ramp up to a substantial #of units a month.
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Dont catch a falling knife wait until it hits the floor meanwhile have fishing hooks ready some even at deep sea depths |
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anyone have advice for NOT ruining the SD card everytime the unit power cycles? Using 'sudo reboot' after a chainminer update (because the SD got ruined and i had to re-write it using an image from early november, since noone seems to have uploaded an image with the chainminer update) ruined the SD for the second time today.
ps: of the 2000 newly stocked h-cards, only about 30 have sold. is there any plans to reduce the cost to something reasonable?
In my experience the following has worked for ~100 reboots between 3 SD cards and PIs. I stop the miner first using the web interface. Then turn off the PSU. I have not used the shutdown -h now OR poweroff command for a while. Each time the PIs have rebooted up fine. |
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What does this ASIC miner status mean?
xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
In other Antminers, I'm seeing zeroes instead....
Why the difference? Which is good?
  Mean your Blade is full of error! Should been oooooooo oooooooo oooooooo oooooooo then all chips work properly. Try to turn off, wait few minute and turn on again. but then how come I seem to have accepted shares with those marked fully with 'xxxxx' I reset it and some 'x' are now replaced with '0's but still have some 'xxx' RMA? Are you OCing? If OCing I would check with a 750W PSU with a single 12V rail. |
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didnt a similar design implemented as an H-board have a problem where if a chip shut off, all other chips became overvolted and shut off or melted?
As a side note: this string configuration of chips is beyond brilliant, I think we must honour Valery for this. I have never seen anyone doing this before. It makes board design so much simpler, elegant and less costly. intron +1 BF is the most integrated chip design of all SHA-256 hashers. It's like Intel Haswell with included clock, Vreg, and logic. What's missing is auto-overclock and p-states just jk. btw which MCU are you using? Thanks! |
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have we figured out how to turn these off without trashing the memory card? Login to Pi than sudo poweroff I also make sure to Stop the miner process before poweroff. |
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we are up like 10,000% longs need to cover.
don't panic, this drop is sure to shake out some weak hands and create a nice buying opportunity.
hope so |
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If you are not aiming for phenomenal hash-rates
Try the following
a) download cgminer-2.11.2
b) engine clock=700, Memory=1230
c) Vdd=0.95V
should give 495KH/s per core and it will leave ur gpu much cooler.
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At 375 I'm seeing about 193 Gh/s on my unit. it doesn't like 400 at all, too many hardware errors. I am using an Antec 620W 80+ PSU. Should I be using a higher rated PSU?
All my 400MHz / 200GH/s Antminers like a 750W PSU. None of them liked 650W or 600W PSU at 400MHz (some or all x in the status). All work fine at 375MHz/192GH/s with 600 - 750W PSUs. The buck regulator is a 30A part. Output voltage is 1.1V. Every 8 chip uses one buck regulator. When drawing > 30A the regulator efficiency dwindles a lot. You can Do the math my PSUs are 80Plus Gold / Platinum rated. goxed which gold/platinum PSU do you recommend? I regularly ab(use) the following PSUs a) Seasonic or made by Seasonic but different brand b) Sparkle or made by Sparkle but different brand c) Rosewill Tachyon / Capstone series |
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PRE-SHIP + Included PCI-Express connectors = Winning combination.
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