[ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! - page 14.

cscape

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Activity: 251

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Quote from: vulgartrendkill on September 17, 2013, 12:13:51 PM

Just a quick question, when you say 12v dc supply, does that mean I can power using a pc psu? and if some what connectors would I use?

just bought 2 from technobit....

Thanks

The latest version has a barrel jack for power instead of the 2 pin molex in the picture. Nicest solution is a compact brick with a barrel jack. You need about 4A if you don't go wild with overclocking. A PC PSU will work too, but needs an cable adapter.

vulgartrendkill

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Activity: 518

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Quote from: cscape on July 24, 2013, 01:46:54 PM

First prototype of Bitfury S-HASH board is hashing:

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.

Just a quick question, when you say 12v dc supply, does that mean I can power using a pc psu? and if some what connectors would I use?

just bought 2 from technobit....

Thanks

itod

legendary

Activity: 1974

Merit: 1077

^ Will code for Bitcoins

Quote from: goodney on September 15, 2013, 10:36:25 PM

Now, at this time I do not have any BitFury ASICs, however I will offer one of these boards fully populated in trade. PM me if interested. Of course I'm willing to share the design files once I know it works.

Nice concept with space for heatsink and nice board! Looking forward for test results.

goodney

member

Activity: 102

Merit: 10

Here is my FuryBug BitFury development board.

I just sent this board off to OSHPark to get fabbed. So I should have them back in 10 days or so.

Features:

On board 1.8V and 3.3V voltage regulators.

3.3V I/O with level shifters.

On board 5.5A adjustable Vcore.

BitFury ASIC mounted on the bottom to allow for up to a 40x40mm heat-sink on top.

Thoughts and feedback appreciated.

Now, at this time I do not have any BitFury ASICs, however I will offer one of these boards fully populated in trade. PM me if interested. Of course I'm willing to share the design files once I know it works.

juhakall

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Activity: 658

Merit: 250

Quote from: kano on September 14, 2013, 11:31:59 PM

Quote from: -Redacted- on September 14, 2013, 09:34:09 PM

No, it can mine to three pools if you want it to. It's not a great piece of software, but it does work.

Hmm then why was this problem reported?
https://bitcointalksearch.org/topic/m.3153384
A user mistake?

~~It can mine to three pool simultaneously. A backup pool strategy is not supported, it's load balancing if you set multiple pools.~~

I was still on the previous page

Doesn't seem useful to run multiple proxies on the same pool. I was just running one and had the rest disabled, to make monitoring the effective hashrate easier.

I'm thinking of a crude shell script to restart the stratum proxy in case a pool goes down, but I've yet to figure out how to detect when a pool comes back up.

papamoi

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Activity: 378

Merit: 250

Quote from: Anduck on September 15, 2013, 04:36:12 AM

Quote from: papamoi on September 15, 2013, 03:54:34 AM

Quote from: erk on September 13, 2013, 02:40:30 AM

Quote from: cscape on September 12, 2013, 12:32:48 PM

Of course, you're not just paying for a piece of silicon wafer, but also for the months of design work, the cost of the mask set, as well as a risk premium.

Isn't ghash.io running 170TH/s of Bitfury? That sale alone would have paid for the mask and design work.

while people who have paid in advance(and who have financed the mask and all) in the 100 th project are stuggling to get their devices online,
ghash.io is having already 20% of the network?

isnt that cool?

So what? Ghash.io is not 100th or BFSB or MegaBigPower.

well if you are happy to finance all the set up and get your devices while other s have their s online already ,then there is no issue

Anduck

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Activity: 1511

Merit: 1072

quack

Quote from: papamoi on September 15, 2013, 03:54:34 AM

Quote from: erk on September 13, 2013, 02:40:30 AM

Quote from: cscape on September 12, 2013, 12:32:48 PM

Of course, you're not just paying for a piece of silicon wafer, but also for the months of design work, the cost of the mask set, as well as a risk premium.

Isn't ghash.io running 170TH/s of Bitfury? That sale alone would have paid for the mask and design work.

while people who have paid in advance(and who have financed the mask and all) in the 100 th project are stuggling to get their devices online,
ghash.io is having already 20% of the network?

isnt that cool?

So what? Ghash.io is not 100th or BFSB or MegaBigPower.

papamoi

sr. member

Activity: 378

Merit: 250

Quote from: erk on September 13, 2013, 02:40:30 AM

Quote from: cscape on September 12, 2013, 12:32:48 PM

Of course, you're not just paying for a piece of silicon wafer, but also for the months of design work, the cost of the mask set, as well as a risk premium.

Isn't ghash.io running 170TH/s of Bitfury? That sale alone would have paid for the mask and design work.

while people who have paid in advance(and who have financed the mask and all) in the 100 th project are struggling to get their devices online,
ghash.io is having already 20% of the network?

isnt that cool?

kano

legendary

Activity: 4592

Merit: 1851

Linux since 1997 RedHat 4

Quote from: kaerf on September 15, 2013, 12:49:50 AM

Quote from: kano on September 14, 2013, 11:31:59 PM

Quote from: -Redacted- on September 14, 2013, 09:34:09 PM

No, it can mine to three pools if you want it to. It's not a great piece of software, but it does work.

Hmm then why was this problem reported?
https://bitcointalksearch.org/topic/m.3153384
A user mistake?

it's load balanced, not failover.

Ah OK - my mistake then - it's not as bad as I thought.

kaerf

hero member

Activity: 631

Merit: 500

Quote from: kano on September 14, 2013, 11:31:59 PM

Quote from: -Redacted- on September 14, 2013, 09:34:09 PM

No, it can mine to three pools if you want it to. It's not a great piece of software, but it does work.

Hmm then why was this problem reported?
https://bitcointalksearch.org/topic/m.3153384
A user mistake?

it's load balanced, not failover.

-Redacted-

hero member

Activity: 574

Merit: 501

I'd guess he had all three pool proxies pointing to the same place, with different worker numbers. Kind of like this:

kano

legendary

Activity: 4592

Merit: 1851

Linux since 1997 RedHat 4

Quote from: -Redacted- on September 14, 2013, 09:34:09 PM

No, it can mine to three pools if you want it to. It's not a great piece of software, but it does work.

Hmm then why was this problem reported?
https://bitcointalksearch.org/topic/m.3153384
A user mistake?

-Redacted-

hero member

Activity: 574

Merit: 501

No, it can mine to three pools if you want it to. It's not a great piece of software, but it does work.

kano

legendary

Activity: 4592

Merit: 1851

Linux since 1997 RedHat 4

chainminer only mines to one pool?
Who was the idiot who wrote that miner ...

ssi

member

Activity: 70

Merit: 10

Quote from: needbmw on September 13, 2013, 04:17:00 AM

Quote from: ssi on September 11, 2013, 12:20:15 AM

Have a full 10 chip prototype board hashing now finally, plus five more on another board. 23.3GH on ten chips, 12.7GH on the other five.

Which miner did you use?
You can try my cgminer fork, I got 2.7-2.8GH/s averaged per chip on my 20 chips 4-layers board.

Using chainminer. I'll give your cgminer fork a shot.

needbmw

legendary

Activity: 1302

Merit: 1008

Quote from: ssi on September 11, 2013, 12:20:15 AM

Have a full 10 chip prototype board hashing now finally, plus five more on another board. 23.3GH on ten chips, 12.7GH on the other five.

Which miner did you use?
You can try my cgminer fork, I got 2.7-2.8GH/s averaged per chip on my 20 chips 4-layers board.

erk

hero member

Activity: 826

Merit: 500

Quote from: cscape on September 12, 2013, 12:32:48 PM

Of course, you're not just paying for a piece of silicon wafer, but also for the months of design work, the cost of the mask set, as well as a risk premium.

Isn't ghash.io running 170TH/s of Bitfury? That sale alone would have paid for the mask and design work.

GandalfG

sr. member

Activity: 259

Merit: 250

Dig your freedom

Quote from: cscape on September 12, 2013, 12:32:48 PM

Of course, you're not just paying for a piece of silicon wafer, but also for the months of design work, the cost of the mask set, as well as a risk premium.

Ok, but why prices go up relative to the first release? Its not fair.
As for me, is a typical manifestation of greed. Bitfury know that if we do not squeeze maximum profit for 2-3 months from now, later will be able to wallpaper the room these chips Tongue

itod

legendary

Activity: 1974

Merit: 1077

^ Will code for Bitcoins

Quote from: papamoi on September 12, 2013, 11:37:23 AM

yes that should be the right number so this give a more comfortable margin as a wafer is 2900/3000 usd
so costs of a chip is 0.68 usd sold for a discounted price of 67500 euros/3000=22.50 euros almost 30 usd

a discounted margin of 29.30 usd/chip

who is interested now?

Everybody. Even what you say is true Bitfury is the *only* option on the market that can get you profitable mining by the beginning of next month. Nothing else exists, not a single option. Others are either unprofitable (AsicMiner, Avalon), non-delivering (BLC), in pre-orders (KNC, HashFast, Cointerra) or in development state (others). What does that tell you about the disaster ASIC market is at the moment?

Gomeler

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Activity: 697

Merit: 500

Quote from: vs3 on September 12, 2013, 12:38:40 PM

Quote from: Gomeler on September 10, 2013, 04:17:30 PM

Quote from: vs3 on September 10, 2013, 03:04:29 PM

Quote from: ssi on September 10, 2013, 02:29:37 PM

Quote from: ssi on September 09, 2013, 04:54:35 PM

Quote from: vs3 on September 09, 2013, 04:46:31 PM

I'm watching for updates on that too ... I hope they keep up that promise and do finally announce the pricing.
I really hope they won't ruin their so far pretty good reputation and take the Avalon/BFL route with everything happening "in two weeks" Sad

I'm getting concerned about that... I've designed a product around prices that were announced months ago and then rescinded, and I've been waiting approaching two weeks for $800 worth of chips that are "sorry they're expensive but they ship immediately" to be shipped. My whole model depends on chips being available early in October and near the price I expect. Bitfury chips are great, and I'm thrilled with them so far from a technical standpoint, but there's not enough margin in them if anything goes pear shaped :/

Chips came today... they shipped when they said they would, it was just the radio silence that had me aflutter I guess...

"Do they have chips" was never the question. Dave mentioned that they have enough in stock that if I wanted a reel I could have it tomorrow.

The question is "price". October chips were initially announced and available at $20/chip. Then the bait was taken away. Now they're $108/chip. AND they keep promising to announce October pricing but so far such thing hasn't happened.

A classic "bait and switch". Very disappointing.

http://en.wikipedia.org/wiki/Bait-and-switch

Quote

Bait-and-switch is a form of fraud used in retail sales but also employed in other contexts. First, customers are "baited" by merchants' advertising products or services at a low price, but when customers visit the store, they discover that the advertised goods are not available, or the customers are pressured by sales people to consider similar, but higher priced items ("switching").

I think it might be a bit early to consider it a bait and switch. They WERE offering October chips at acceptable prices. I suspect they either 1) sold out due to underestimating the demand or 2) chose to hold back sales to make sure they could satisfy their requirements for 100 TH Mine and other projects. Some information from Bitfury/Punin/Dave would go a long way towards easing fears of wasted effort.

So it seem I may have been right in suspecting them of bait-and-switch ... 50% increase in the price is quite a significant amount Sad

The only hope would be for October pricing - as this is supposedly second-half-of-September one.

It sounds like these are not October chips but a sudden/new set of September chips? Either way the pricing isn't THAT bad but still more than I would have hoped to see. Time to move forward I suppose and pick up a few chips from Zefir for September delivery.

Topic: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! - page 14. (Read 176728 times)