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Showing 20 of 100 results by ssi
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Board Scam Accusations
Re: Coinabul - 16BTC / 3oz order, no response
by
ssi
on 27/11/2013, 16:49:46 UTC
I'm in the same boat, an order I placed two weeks ago is sitting in the "initiated" stage on the fedex tracking.
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Topic
Board Hardware
Topic OP
bitfury power strings
by
ssi
on 19/11/2013, 19:05:42 UTC
Has anyone done a successful design with power strings using bitfury chips?  I want to turn a new module PCB, and I'd LOVE to get rid of the expensive regulators. I've seen some of bitfury's notes about how to do power strings, but I don't fully grok it.  I'd love to chat with anyone who's got some experience or knowledge about it Smiley
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Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 13/09/2013, 13:08:17 UTC
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.
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Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 12/09/2013, 17:38:14 UTC
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.

Trust me, most of us are comfortable with that.  I'm more uncomfortable with the fact that the prices are staying set right at the ragged edge of profitability, and they're higher than they were originally announced to be.
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Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 12/09/2013, 15:07:10 UTC
eep, $90k/reel is up 50% from the last reel pricing I knew of... that doesn't bode well for profitability.
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Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 11/09/2013, 14:59:27 UTC
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.
Whats the heat like?



More than I'd like...  My proto boards are 20 square inch, and about 30W, and I'm seeing a 44C rise with a fan blowing on the bottom. 

The production boards are 35W, and only 8 square inches.   My biggest concern at this point is whether I'll get the heat out of them.
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Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 11/09/2013, 05:20:15 UTC
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.
Post
Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 11/09/2013, 00:21:33 UTC

"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.

No, that wasn't my concern... my concern was that I ordered these on 9/1, and part of the reasoning behind the absurd price of these chips was that you'd get them immediately.

Ah .. interesting ... so "immediately" turns out to be about 10 days?
On a second thought - that's probably normal and okay. There was a long weekend (9/2) in between, so there are 4-5 business days between then and today. Unless you ordered a "overnight" or "second day" shipping it would take on average 3-5 business days. If they shipped it on 9/3 and you received it yesterday - that's okay and perfectly within the expected time frame.

As for October availability Dave had mentioned earlier: "we'll have plenty of reels available starting early October". That's why I didn't consider "availability" as a concern.

They shipped it on 9/6.  five days is what it is, and I know they were busy over labor day weekend building and testing miners.
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Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 10/09/2013, 21:31:06 UTC

"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.

No, that wasn't my concern... my concern was that I ordered these on 9/1, and part of the reasoning behind the absurd price of these chips was that you'd get them immediately.
Post
Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 10/09/2013, 19:29:37 UTC
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...
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Topic
Board Hardware
Re: [ANN] US/North American Bitfury sales now open ***full prototype pics***
by
ssi
on 10/09/2013, 15:18:52 UTC
One of the selling points was a "fork" of cgminer (I am a mod on IRC #cgminer and do testing of cgminer). Well established and always forked.

The software chainminer using "getwork" REALLY,  it seems even a year after it's release, you have a patch work solution for stratum, the major protocol of mining pools.

chainminer has no relation to cgminer. Putin's comments on he'll work on it when he can, shows his priorities.

I asked specifically if Dave was sending a board to Con and Kano and he said he would, he didn't, guess it's another fail or bad decision.

I'm working on a mining client written in Go to support my bitfury miners which have additional I2C hardware and bank switching which requires slightly different code than chainminer.  It will support bfsb-style miners as well.  Are you or anyone else interested in getting involved with the project?

yes I would be interested ... in such a software, github?

I haven't put it anywhere public yet, but pm me and we'll talk
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Topic
Board Hardware
Re: [ANN] US/North American Bitfury sales now open ***full prototype pics***
by
ssi
on 10/09/2013, 14:56:04 UTC
One of the selling points was a "fork" of cgminer (I am a mod on IRC #cgminer and do testing of cgminer). Well established and always forked.

The software chainminer using "getwork" REALLY,  it seems even a year after it's release, you have a patch work solution for stratum, the major protocol of mining pools.

chainminer has no relation to cgminer. Putin's comments on he'll work on it when he can, shows his priorities.

I asked specifically if Dave was sending a board to Con and Kano and he said he would, he didn't, guess it's another fail or bad decision.

I'm working on a mining client written in Go to support my bitfury miners which have additional I2C hardware and bank switching which requires slightly different code than chainminer.  It will support bfsb-style miners as well.  Are you or anyone else interested in getting involved with the project?
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Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 10/09/2013, 06:01:01 UTC
I though i could donate the chip to someone in the community.

Unfortunately, unless there were solder bridges on the IO pins causing the issue, the chip is likely non-functional.

nice sentiment tho Smiley

Actually mine was an interesting case. Chip 4 was hashing fine, but was not forwarding SPI Wink. Thus  I  had to cut the traces of Chip 5 first Smiley and jump the SPI. Still no fish.
Wish I had a scope Sad. I graduated from the univ, so missing all the nice bench equipment.

So I have potentially 2 hashing chips that could be donated.

If you or others are in a position to pull them safely, i definitely could use marginal chips for testing code and heat issues on my miner that I'm working on.
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Topic
Board Hardware
Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE!
by
ssi
on 09/09/2013, 21:54:35 UTC
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 :/
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Topic
Board Hardware
Re: [Product Teasers] Prototype hubs & more from Big Picture Mining Cooperative
by
ssi
on 09/09/2013, 17:45:04 UTC
looks expensive Smiley

Yeah, they do, but the Drillbit usbs (barntech GB) the usbs were $100 each and can be clocked as high as 2.5 or even 2.7 with proper cooling etc.  As far as I know its 2.7gh\s theoretical maximum per chip?

You can get some chips as high as 3GH, but 2.5-2.7 is pretty typical.

What I meant was, having all that support hardware for just one bitfury chip looks expensive Smiley
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Topic
Board Hardware
Re: [Product Teasers] Prototype hubs & more from Big Picture Mining Cooperative
by
ssi
on 09/09/2013, 17:19:33 UTC
looks expensive Smiley
Post
Topic
Board Service Announcements
Re: [ANN] Bitfury ASIC sales in EU and Europe
by
ssi
on 07/09/2013, 15:42:56 UTC
Hi punin, I was wondering what your definition of a 'unit' is?

i.e. Would anything that fits on 1M-board, attached to 1 Raspberry Pi be considered a unit?

i.e. if I order enough hardware to fit on 2M-boards, i'd have 2 units?

Thanks.

At least have the decency to say why you're asking this, mr. Integrity:

https://bitcointalk.org/index.php?topic=289316.0


Wow... that's pretty lame.   No other vendor on here would have had the decency to supply extra hardware to prop up a performance shortage to the level promised, and you want to use that as a loophole to claim they haven't delivered what they advertised?   integrity indeed....  Undecided
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Topic
Board Hardware
Re: Latest News from HashFast regarding "Golden Nonce" Tape Out
by
ssi
on 07/09/2013, 15:14:15 UTC
https://hashfast.com/simon-at-work-one-week-before-tapeout/

"This is Simon hard at work on chip design during the run up to tape out. HashFast engineers occupied the first few cubicles in the Uniquify office, while the business team (Eduardo, John, and co.) set up shop in the back, by in the broom closet."  Cheesy

I can't imagine doing EDA on tiny little laptop monitors... shouldn't they have enough money to buy the man a big external?
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Topic
Board Hardware
Re: [HALTED] BitFury chip distribution 0.36BTC/chip (October delivery)
by
ssi
on 07/09/2013, 07:39:15 UTC
If all goes well, I should have boards available in a week.
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Topic
Board Hardware
Re: [ANN] US/North American Bitfury sales now open ***full prototype pics***
by
ssi
on 06/09/2013, 18:24:55 UTC
Maybe they won't last 10 years....  Maybe only 7....   The useful lifetime of these boards is measured in months at this point...

OC FTW !

My thoughts exactly.  I'm hoping for 12 months, but I am most definitely an optimist.  If there was a way to OC, I'd be all over that.  Wink
There is, by replacing the regulator. Atleast one person so far has done this and has reported about 10% gains from it. It does void the warranty and does require a skilled professional to do, but is possible.

link? I was under the impression that if a board has <16 working chips, it may be possible to overclock the others using the additional headroom provided by not running a chip (ie: 2/16 chips dont work -> 12.5% more power available to working chips. (am i correct on this, can anyone confirm?)

Only if you remove the chip and bridge its spi chain.  If the chip is powered, it's consuming at least idle current, and if it's been configured, it's consuming full hashing current, regardless of how much work it's doing.

Also, the chips aren't going to automatically consume more current and run faster just cause current is available.  You'd need to turn up Vdd (also an advanced maneuver Wink)