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Topic: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili - page 44. (Read 73063 times)

hero member
Activity: 826
Merit: 1000
Nice! With time left on the clock. Thanks form! This is the way to do it. Overdeliver...

Can this be made as an accessory for these units, or is the solution something like a Pi, or even a nexus?
If you are referring to BFL android platform it will probably work... It is still detected as BAJ device...
newbie
Activity: 41
Merit: 0
Will the power still be in the range 110 watts per connector/ 8 chips?
Yes something like this.

I see you have only one B type usb. So no daisy chain, for multiples we will need a hub, will it need to be powered?
No powered hub is neccessary. The boards get power via the PCIe connectors.

Here's a challenge. Asic blades have an ethernet connector and an onboard host so no need for a PC
Can this be made as an accessory for these units, or is the solution something like a Pi, or even a nexus?
An onboard CPU with ethernet etc. would drive up the cost per board. I think even more than a RasPi costs. That calculation gets even worse when you want to run multiple boards.


If the Pi is a solution how many Gh/s can it handle?

I heard it has no problem with a terrahash minirig.

What do you expect the 16 chip hash rate to be?

It should be 16 times the performance of one chip Wink
hero member
Activity: 868
Merit: 1000
Hi Form

What do you expect the 16 chip hash rate to be?
It looks like you have produced a 3rd generation device BEFORE the second generation have started to ship.

Bring on the chips I ca'nt wait.....
hero member
Activity: 868
Merit: 1000
Good news everyone.
The board design is ready and we clarify the prices for boards and assembly now.

Changes since rev. 1.0 (COINADO):
- New name: COINTAMINATION
- New size: 189.23 x 144.78 mm
- 4-layer PCB for better power-distribution
- Up to 16 BFL-chips can be mounted in 4x4 clusters. (because of heatsink-balance it is not possible to mount a single chip in one cluster, but 2-4 chips per cluster works)
- Each cluster will have one heatsink and a dedicated fan-connector. (plus one main-fan-connector - we try with passive heatsinks and one central fan first)
- Multiple mounting holes for central fan (for 92 and 120 mm fan)
- Now four power-modules (each for every cluster, with independent adjustable voltages and a better sensing-system now)
- USB-Connector changed to "Mini-USB type B"
- two PCIe power-connectors (for up to 8 chips one of them is sufficient)
- Power- and USB-Connectors are now accessible from one side
- Firmware is still BFL-compatible. You can use their software or a tuned version from any open-source project. (There will be many sometime)




I Need this board!!!!!!!!!!!!!!!!!!!!!!

Will the power still be in the range 110 watts per connector/ 8 chips?
I see you have only one B type usb. So no daisy chain, for multiples we will need a hub, will it need to be powered?

Here's a challenge. Asic blades have an ethernet connector and an onboard host so no need for a PC
Can this be made as an accessory for these units, or is the solution something like a Pi, or even a nexus?

If the Pi is a solution how many Gh/s can it handle?

hero member
Activity: 798
Merit: 531
Crypto is King.
As far as FrankenJala's go, any idea on pricing for your team to mount the chips? Like a per chip price? Or??? If you have no idea yet, no biggie. It'll be another 2 months until my Jala is here anyway. I am loving the EXPRESS TRAIN that the COINTAMINATION has jumped on Cheesy
hero member
Activity: 868
Merit: 1000
If the mined bitcoins are worth more than the electricity used to produce them, then all the chips are good.
The problem comes when the difficulty factor starts to eat into your profits.
Lower quality chips, with a lower hashing rate, still need the electricity, so they will have a shorter viable life.
I suspect this is why BFL have a +10/-10% tolerance on their miners.(it saves them having to reject 5% of their chips at "grade D",(quite a big difference to their profits))
If you get a -10% board its part of the bitcoin lottery.
Towards the end of life for these miners there may be an advantage in disabling the lowest performing chips to save electricity costs.(someone will now tell me otherwise!!!!!!)

hero member
Activity: 672
Merit: 500
wow looks good...

Price still around 300 per board?
newbie
Activity: 41
Merit: 0
Good news everyone.
The board design is ready and we clarify the prices for boards and assembly now.

Changes since rev. 1.0 (COINADO):
- New name: COINTAMINATION
- New size: 189.23 x 144.78 mm
- 4-layer PCB for better power-distribution
- Up to 16 BFL-chips can be mounted in 4x4 clusters. (because of heatsink-balance it is not possible to mount a single chip in one cluster, but 2-4 chips per cluster works)
- Each cluster will have one heatsink and a dedicated fan-connector. (plus one main-fan-connector - we try with passive heatsinks and one central fan first)
- Multiple mounting holes for central fan (for 92 and 120 mm fan)
- Now four power-modules (each for every cluster, with independent adjustable voltages and a better sensing-system now)
- USB-Connector changed to "Mini-USB type B"
- two PCIe power-connectors (for up to 8 chips one of them is sufficient)
- Power- and USB-Connectors are now accessible from one side
- Firmware is still BFL-compatible. You can use their software or a tuned version from any open-source project. (There will be many sometime)


http://my.root4u.de/board3.png
legendary
Activity: 2254
Merit: 1020
★ Ⓚ KORE TEAM Ⓚ ★

Not marked it is luck of the draw. And they are hard to test. Once on board you will have hard time removing them. It is possible to make a test socket with springs but it would be expansive and hard...


I'm okay with that, luck of the draw it is then.

Its a shame the chips are of such an inferior quality but that is par for the course.

They do sell FPGA sockets, binning the chips would be good for everyone
Well samples are. No idea about  real chips... They advertised them differently... I hope for the best...

I don't see why binning them would be good. Every chip has his own frequency and even if only one engine is working that is one engine more then without chip... And even samples are not that catastrophic...

From BFL Website:

Considerations:


    Chip grades:  Chips come in four grades of performance.  Chips are sold in mixed grade lots.  A grade has 16 engines, B grade has 15 engines, C grade has 14 engines and D grade has no less than 12 engines.  All chips run at a minimum of 250 mhz.  Higher grade chips will run up to 294mhz.  The percentage distribution in each lot is 60% Grade A, 20% Grade B, 15% Grade C and 5% Grade D.

https://products.butterflylabs.com/65nm-asic-bitcoin-mining-chip.html
hero member
Activity: 826
Merit: 1000

Not marked it is luck of the draw. And they are hard to test. Once on board you will have hard time removing them. It is possible to make a test socket with springs but it would be expansive and hard...


I'm okay with that, luck of the draw it is then.

Its a shame the chips are of such an inferior quality but that is par for the course.

They do sell FPGA sockets, binning the chips would be good for everyone
Well samples are. No idea about  real chips... They advertised them differently... I hope for the best...

I don't see why binning them would be good. Every chip has his own frequency and even if only one engine is working that is one engine more then without chip... And even samples are not that catastrophic...
hero member
Activity: 854
Merit: 500

Not marked it is luck of the draw. And they are hard to test. Once on board you will have hard time removing them. It is possible to make a test socket with springs but it would be expansive and hard...


I'm okay with that, luck of the draw it is then.

Its a shame the chips are of such an inferior quality but that is par for the course.

They do sell FPGA sockets, binning the chips would be good for everyone
sr. member
Activity: 476
Merit: 250

Not marked it is luck of the draw. And they are hard to test. Once on board you will have hard time removing them. It is possible to make a test socket with springs but it would be expansive and hard...


I'm okay with that, luck of the draw it is then.
hero member
Activity: 826
Merit: 1000
Well I guess that brings up a couple of questions.

1: Will the chips be labelled or do you have to test them to know what grade they are?

2: If the grade of the chips is known then do you divide them up to everyone using that same strategy, for example if someone bought 10 chips would they get 6 A grade, 2 B grade , 1 C grade  and 1 D grade?

I hope I don't sound petty here I am really just curious. I just learned they had grades when the discussion came up about the sample chips. I've got 16 chips coming that I plan to mount on 1 board and I will be happy if it hashes anywhere between 60GH/s and 70GH/s.

edit; I guess I should say anything over 60GH/s no reason to stop you at 70GH/s.

Also if it's luck of the draw I'm okay with that as well.
Not marked it is luck of the draw. And they are hard to test. Once on board you will have hard time removing them. It is possible to make a test socket with springs but it would be expansive and hard...

  All chips run at a minimum of 250 mhz.

  Higher grade chips will run up to 294 mhz.

Interesting.

Is there any possibility to set the clockspeed of each chip on the board individually (like my ztex quad fpga boards do), or do they all need to run in lockstep, as it were?
Yes every chip is clocked individually...
legendary
Activity: 966
Merit: 1000
 All chips run at a minimum of 250 mhz.

  Higher grade chips will run up to 294 mhz.

Interesting.

Is there any possibility to set the clockspeed of each chip on the board individually (like my ztex quad fpga boards do), or do they all need to run in lockstep, as it were?
sr. member
Activity: 476
Merit: 250

And just in case you don't know:
Chips are sold in mixed grade lots.

  A grade has 16 engines, 60%

  B grade has 15 engines, 20%

  C grade has 14 engines, 15%

  D grade has 12 engines.   5%

  All chips run at a minimum of 250 mhz.

  Higher grade chips will run up to 294 mhz.


Well I guess that brings up a couple of questions.

1: Will the chips be labelled or do you have to test them to know what grade they are?

2: If the grade of the chips is known then do you divide them up to everyone using that same strategy, for example if someone bought 10 chips would they get 6 A grade, 2 B grade , 1 C grade  and 1 D grade?

I hope I don't sound petty here I am really just curious. I just learned they had grades when the discussion came up about the sample chips. I've got 16 chips coming that I plan to mount on 1 board and I will be happy if it hashes anywhere between 60GH/s and 70GH/s.

edit; I guess I should say anything over 60GH/s no reason to stop you at 70GH/s.

Also if it's luck of the draw I'm okay with that as well.
hero member
Activity: 826
Merit: 1000
For those of us that have chips from other sources will we be able to purchase boards and chip mounting services?
Yes...

Interested. So potentially we are looking at for 16 chip setup

16 x $55 + $~200 = $1080 for 64GH/s ?

Whats the most optimistic timeline that you see you will be shipping?
Board 300$ for 16 chips...

If we are talking board alone end of the month but if you are talking fully made board with chips and you didn't bought them till now I guess 120 days...

And we think that we can get more then just 4GH out of the chip with our firmware. But we can't test it since samples are poor quality chips that are not even D grade... But we got on average 3,6GH out of them...

And just in case you don't know:
Chips are sold in mixed grade lots.

  A grade has 16 engines, 60%

  B grade has 15 engines, 20%

  C grade has 14 engines, 15%

  D grade has 12 engines.   5%

  All chips run at a minimum of 250 mhz.

  Higher grade chips will run up to 294 mhz.
legendary
Activity: 910
Merit: 1000
For those of us that have chips from other sources will we be able to purchase boards and chip mounting services?
hero member
Activity: 504
Merit: 500
Interested. So potentially we are looking at for 16 chip setup

16 x $55 + $~200 = $1080 for 64GH/s ?

Whats the most optimistic timeline that you see you will be shipping?
hero member
Activity: 826
Merit: 1000
It is a guess but it should be close:




is coming... Are you ready for it?
hero member
Activity: 826
Merit: 1000
Hi Lucko

Please can you change my 8 chips @ 100%  to  16 @ 50%

You will need some btc for the extra credits Please PM with the wallet address and I will send some.

I need to keep an open mind as to upgrade for the LS or order another board from you.


Done...
wow, nice dude !
do u sell board with chips too ? or just boards and u need the chips ?
Full boards too... You can order chips hire
https://bitcointalksearch.org/topic/bfl-chip-groupbuy-275chip-50-btcpaypalsepa-420-sold-0100-batch-4-238052
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