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
Topic: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili - page 44. (Read 73104 times)
August 15, 2013, 03:17:14 PM
August 15, 2013, 07:10:27 AM
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
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
August 15, 2013, 04:02:00 AM
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
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...
August 14, 2013, 09:06:27 PM
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
August 14, 2013, 07:20:45 PM
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.
August 14, 2013, 07:00:51 PM
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...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.
All chips run at a minimum of 250 mhz.
Higher grade chips will run up to 294 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?
August 14, 2013, 06:55:00 PM
All chips run at a minimum of 250 mhz.
Higher grade chips will run up to 294 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?
August 14, 2013, 06:42:07 PM
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.
August 14, 2013, 02:06:17 PM
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...16 x $55 + $~200 = $1080 for 64GH/s ?
Whats the most optimistic timeline that you see you will be shipping?
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.
August 14, 2013, 01:37:17 PM
For those of us that have chips from other sources will we be able to purchase boards and chip mounting services?
August 14, 2013, 12:32:29 PM
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?
16 x $55 + $~200 = $1080 for 64GH/s ?
Whats the most optimistic timeline that you see you will be shipping?
August 14, 2013, 11:33:39 AM
It is a guess but it should be close:
is coming... Are you ready for it?
is coming... Are you ready for it?
August 13, 2013, 06:36:33 PM
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...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.
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 hiredo u sell board with chips too ? or just boards and u need the chips ?
https://bitcointalksearch.org/topic/bfl-chip-groupbuy-275chip-50-btcpaypalsepa-420-sold-0100-batch-4-238052
August 13, 2013, 06:33:22 PM
wow, nice dude !
do u sell board with chips too ? or just boards and u need the chips ?
do u sell board with chips too ? or just boards and u need the chips ?
August 13, 2013, 06:27:57 PM
Hi Lucko
If your board and chips are available before the "BFL LS" arrives then it will be "no contest" on price.
The first to hash gets the most Bitcoins in the bank.
If your board and chips are available before the "BFL LS" arrives then it will be "no contest" on price.
The first to hash gets the most Bitcoins in the bank.
August 13, 2013, 05:57:53 PM
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.
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.
August 13, 2013, 05:50:59 PM
If the BFL "little single" is going to be a messy upgrade maybe it should go onto Ebay.
I have been looking at some figures, (Yes its been a long time waiting for BFL and others)
"Asic erupters" now on sale in US / Canada £93.71/Gh and 7.7watts/Gh (in batches of 100 chips)
"Asic Blades" now on sale in US / Canada £124.00/Gh and 8.3 watts/Gh (nice unit but the price.............to add a network board)
"BFL Little Single" Pre paid £47.00/Gh and 3.5 watts/Gh
"Cointamination" paid in stages(chips, board, assembly, delivery) expected price £16.50/Gh and 3.5 watts/Gh
Sorry for the prices in UK £ but they are easy enough to convert (and update if anyone can improve on my figures)
This includes UK import VAT @20%
For power and price its no contest, Especially if BFL/foundary can deliver the chips on time.
I have been looking at some figures, (Yes its been a long time waiting for BFL and others)
"Asic erupters" now on sale in US / Canada £93.71/Gh and 7.7watts/Gh (in batches of 100 chips)
"Asic Blades" now on sale in US / Canada £124.00/Gh and 8.3 watts/Gh (nice unit but the price.............to add a network board)
"BFL Little Single" Pre paid £47.00/Gh and 3.5 watts/Gh
"Cointamination" paid in stages(chips, board, assembly, delivery) expected price £16.50/Gh and 3.5 watts/Gh
Sorry for the prices in UK £ but they are easy enough to convert (and update if anyone can improve on my figures)
This includes UK import VAT @20%
For power and price its no contest, Especially if BFL/foundary can deliver the chips on time.
August 13, 2013, 05:46:22 PM
NEW LOGO IS THE SEX!
August 13, 2013, 05:34:39 PM
This has not quite fallen into place.
another day or two to investigate the little single upgrade and the batch 3 chip pool is closing, do I risk 8 more chips?................
I have one more SEPA on the way so I can do exception for you or you can change your 8 100% to 16 50% chip order... And power regulation will only be a problem if you would like to get out more then 60 GH I guess. It is the same board. And we would need to make you a heatsink... Not a big problem but you can't use standard so it will cost a bit more... Add some additional components... You also need to clean the pads for ASIC... There is some work but it can be done... another day or two to investigate the little single upgrade and the batch 3 chip pool is closing, do I risk 8 more chips?................
August 13, 2013, 05:18:26 PM
I am now starting to look to when my "LITTLE SINGLE" finally arrives(september, october, november, 2013 or 2014)
What do you think the upgrade will require to transform it into "COINxxxx SUPER SINGLE"?
I can imagine the first move would be to sell the PSU on Ebay(or throw it in the bin)
Then immediately ship the main box to you, with some bitcoins, to complete the transformation.
Well we have a Little Single in hands... form got his shipped What do you think the upgrade will require to transform it into "COINxxxx SUPER SINGLE"?
I can imagine the first move would be to sell the PSU on Ebay(or throw it in the bin)
Then immediately ship the main box to you, with some bitcoins, to complete the transformation.
So we will see. I would guess you will need some BTC but not much but more importantly 8 chips. I guess you will get form 64 to 70GH out... But you need to know that this might not work so good because form reported that power regulation doesn't work that good...This has not quite fallen into place.
another day or two to investigate the little single upgrade and the batch 3 chip pool is closing, do I risk 8 more chips?................
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