[ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING***

[bobcaticus]

Just letting everyone know:

Dave is at the Bitcoin Germany convention this week and then he is heading up to meet Punin in real life for the first time.   

I hope to have some really really good news in a week or so.

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[Syke]

Just letting everyone know:

Dave is at the Bitcoin Germany convention this week and then he is heading up to meet Punin in real life for the first time.   

I hope to have some really really good news in a week or so.

I sure hope so. Just keep in mind that Bitmain is shipping in-stock units at $5/gh.

[klondike_bar]

Just letting everyone know:

Dave is at the Bitcoin Germany convention this week and then he is heading up to meet Punin in real life for the first time.   

I hope to have some really really good news in a week or so.

I sure hope so. Just keep in mind that Bitmain is shipping in-stock units at $5/gh.

+1

The reality of it is: they are both insanely rich from sales of the bitfury design already, and will probably just spend several days doing blow in a Munich penthouse

[buzzdave]

Just letting everyone know:

Dave is at the Bitcoin Germany convention this week and then he is heading up to meet Punin in real life for the first time.   

I hope to have some really really good news in a week or so.

I'll be at http://insidebitcoins.de/en/?c=bcoinberlpage - would love to meet fellow miners there!

Clarification: I'm also headed to Warsaw to meet Leszek.  I doubt I'll get a chance to meet Niko (Punin), but I sure hope he'll be at either Berlin or Warsaw!

Cheers,
Dave

[klondike_bar]

^what about price adjustments in the MBP store?

[kano]

^what about price adjustments in the MBP store?

lulz

[Trongersoll]

Ok. I have a V2 MB. today i added 2 more H cards. Oddly, I've only seen 10 Gh/s increase. I went from 279 Gh/s to 290 Gh/s. Even if the cards were doing 25 Gh/s each I should see 300 Gh/s. One of the new cards is doing about 4 Gh/s, but others are perfroming worse now. I'm wondering if this is indicative of a Power Supply that isn't robust enough.

[klondike_bar]

Ok. I have a V2 MB. today i added 2 more H cards. Oddly, I've only seen 10 Gh/s increase. I went from 279 Gh/s to 290 Gh/s. Even if the cards were doing 25 Gh/s each I should see 300 Gh/s. One of the new cards is doing about 4 Gh/s, but others are perfroming worse now. I'm wondering if this is indicative of a Power Supply that isn't robust enough.

sounds like that could be thew case. If you assume the cards were tuned around 31GH stock then your rig would be ~340GH - A possible draw of up to 400W on 12V depending on how the cards are tuned or if pencil modded. If you assume an extra 20% precaution to the PSU, then I would say using a power supply that provides any less than 500W to the bitfury 12V may be a source of the problem.

Try with a better supply, preferably with at least 550W on a single 12V rail. (The CX600M is a really solid modular system - cant recall if 1 or 2 PCI connectors though)

[repairguy]

^what about price adjustments in the MBP store?

lulz

double lulz,

We have 3 pages of cost adjustment questions and we get a reply about where he is going/meeting. With the btc price low now, antminer is better choice by a huge margin. 400 for 35gh +controller or 750 for 180gh standalone machine, tough choice right?

[xzempt]

yep...  been waiting on a price drop.....     guess antminer ftw 

[kano]

^what about price adjustments in the MBP store?

lulz

double lulz,

We have 3 pages of cost adjustment questions and we get a reply about where he is going/meeting. With the btc price low now, antminer is better choice by a huge margin. 400 for 35gh +controller or 750 for 180gh standalone machine, tough choice right?

Yes indeed

Aside: Hmm - so why does my BA fury board do 40.1GH/s paid to the pool?
What's up with the ones made by the guys here?
(or is that something to do with my cgminer driver?)
Yes these are real questions ... I've only had access to a small number of BA fury boards and basically no access at all to the boards listed here.
So I've no idea if my driver needs more work to support a lot of boards (yeah there really isn't much CPU power in an RPi) or if something else is going on.
I guess I need to spend some time on a large BA fury setup and work out what's going on with these crappy performance figures reported for the hardware here.
Then once I'm sure cgminer performs well with lots of boards, then the question here will be why on earth the boards here are rated so low.

[Xian01]

Dear Buzzdave,

I have two empty Spotswood cases ready to house two more full rigs of fine Bitfury product, but Bitmain keeps getting my money lately :|

Any plans to become more price-competitive in the near future ? I'd love to buy another two full rigs worth, but the economics don't make sense at present.

[Doff]

Are there going to be any updates to the Miner Software at all? or is this project pretty much dead?

I mean fail-over would be sweet, any optimization as well would be cool.

[Littleshop]

Dear Buzzdave,

I have two empty Spotswood cases ready to house two more full rigs of fine Bitfury product, but Bitmain keeps getting my money lately :|

Any plans to become more price-competitive in the near future ? I'd love to buy another two full rigs worth, but the economics don't make sense at present.

I also bought elsewhere (asic cubes and more scrypt mining) even with open slots. I would love to see a lower price on boards for my rig. 

[Keefe]

^what about price adjustments in the MBP store?

lulz

double lulz,

We have 3 pages of cost adjustment questions and we get a reply about where he is going/meeting. With the btc price low now, antminer is better choice by a huge margin. 400 for 35gh +controller or 750 for 180gh standalone machine, tough choice right?

Yes indeed

Aside: Hmm - so why does my BA fury board do 40.1GH/s paid to the pool?
What's up with the ones made by the guys here?
(or is that something to do with my cgminer driver?)
Yes these are real questions ... I've only had access to a small number of BA fury boards and basically no access at all to the boards listed here.
So I've no idea if my driver needs more work to support a lot of boards (yeah there really isn't much CPU power in an RPi) or if something else is going on.
I guess I need to spend some time on a large BA fury setup and work out what's going on with these crappy performance figures reported for the hardware here.
Then once I'm sure cgminer performs well with lots of boards, then the question here will be why on earth the boards here are rated so low.

What voltage do the BA boards run at? My best MBP boards can get just over 40GH when the weather's cool. But the main bottleneck seems to be the voltage regulator. Most of my boards are overvolted to around 0.86v, and the speeds are set just below where the regulator would cut out due to overcurrent/temp. At 0.86v, they could usually be clocked higher before getting too many errors, if it weren't for the current limit. I can determine that by turning off a couple chips and clocking higher until the errors start. Do the BA boards have a higher current limit than 30A?

[kano]

...
What voltage do the BA boards run at? My best MBP boards can get just over 40GH when the weather's cool. But the main bottleneck seems to be the voltage regulator. Most of my boards are overvolted to around 0.86v, and the speeds are set just below where the regulator would cut out due to overcurrent/temp. At 0.86v, they could usually be clocked higher before getting too many errors, if it weren't for the current limit. I can determine that by turning off a couple chips and clocking higher until the errors start. Do the BA boards have a higher current limit than 30A?

I'm not actually sure what this one is (i.e. if it is standard voltage or set higher)
Someone sent it to me and I wrote the driver (end of last year)
I've since got 6 more but I don't have direct access to them at the moment for testing, so I again don't know too much about the hardware side of them.
... part of the reason why I asked questions myself
The BA ones have fans on them also. My 40GH/s uses 50W at the wall (total including RPi and controller)

[xzempt]

all the requests for lower prices to competition..... love how they are ignored.....



way to take care of the community that made you guys multi millionaires....

[Ridicuss]

all the requests for lower prices to competition..... love how they are ignored.....



way to take care of the community that made you guys multi millionaires....

I really dont know if we made them millionaires or not. They do have an awfully large mine that make lots of BTC. The public sales were appreciated but I think the mine takes precedence.

[solarion]

They're capable of 40+ with some coaxing.

[kano]

But is that the actual Paid GH/s (i.e. the Pool Accepted shares = those GH/s) or is it something more than the Paid GH/s?
(Does it include rejects or hardware errors?)

When I wrote the cgminer driver, I also ran chainminer sometimes to see what I should expect in performance, but I quickly gave up on trying to work out what the numbers were that chainminer was spitting out.
My solution was to run a local P2Pool instance at low diff, that only chainminer was talking to - so I had all the graphs about the hash rates etc.
That showed it starting sometimes as high as 40GH/s but never staying that high for long - usually ending up around 36GH/s within an hour
Compared to those related numbers, I'm getting over 41GH/s on the same board.

Edit: I should also add that when considering Paid GH/s based on accepted shares, you need to run it for at least some hours to get somewhat reliable results due to variance (and multiply the hours required by your difficulty also)