I see at least one solder bridge. You might need to get out your Exacto-knife and clean that up... 
COM USB chip? Left bottom? Is that it? Will forward that... Thanks... 
Topic: [BFL-Chip Groupbuy] $27,5/chip 50% - BTC,PayPal,SEPA - 420 sold, 0/100 batch #4 - page 15. (Read 41816 times)
July 30, 2013, 06:00:23 PM
July 30, 2013, 05:58:59 PM
I see at least one solder bridge. You might need to get out your Exacto-knife and clean that up...
I may have to break out the glasses. Can you describe where you see the bridge? July 30, 2013, 05:32:30 PM
I see at least one solder bridge. You might need to get out your Exacto-knife and clean that up...
July 30, 2013, 04:13:42 PM
And since I wasn't asked for an € I think it was done in house... That is even better news... Will know more tomorrow...
July 30, 2013, 03:59:57 PM
Look what came out of my team... Now I know why it took so long for changes to BFL board...
Now this picture is not completely finished board... And some components are just put on... But this is a surprise I just got on mail...
I know but power supply is just a test version... Real will have PCI-e... So don't worry...
Now we will do 2 tests I do hope that this board will work since it will cost less...
Now this picture is not completely finished board... And some components are just put on... But this is a surprise I just got on mail...
I know but power supply is just a test version... Real will have PCI-e... So don't worry...
Now we will do 2 tests
I do hope that this board will work since it will cost less...Awesome work :-)
July 30, 2013, 03:42:09 PM
Look what came out of my team... Now I know why it took so long for changes to BFL board... Anyway this is what happen behind my back... So if it turns out working...
Now this picture is not completely finished board... And some components are just put on... But this is a surprise I just got on mail...
I know but power supply is just a test version... Real will have PCI-e... So don't worry...
Now we will do 2 tests I do hope that this board will work since it will cost less...
Now this picture is not completely finished board... And some components are just put on... But this is a surprise I just got on mail...
I know but power supply is just a test version... Real will have PCI-e... So don't worry...
Now we will do 2 tests
I do hope that this board will work since it will cost less... July 30, 2013, 12:39:42 PM
Why would you do that? You can put 8 on one and it will cost much less... And take MrTeal's. It has Intel programmable power supply so you can overvoltage it easy and if I understand it correctly it will also be possible to control clock directly over firmware... chris99 told me they will not change firmware so you will get much more out of chips... That means only with programmer unit you can change a way clock are set...
But this is where over plans compeer to chris99 are different. We will modified firmware to make it possible to change clocks... And you will be able to change voltage with potentiometer... But this is in case we don't change all... Jala experiment will tell all...
But this is where over plans compeer to chris99 are different. We will modified firmware to make it possible to change clocks... And you will be able to change voltage with potentiometer... But this is in case we don't change all... Jala experiment will tell all...
July 30, 2013, 11:55:27 AM
Reading both threads of MrTeal's and chris99's, MrTeal is slightly ahead of chris99 in terms of development.
I'll still like to try both with 4 chips each
I'll still like to try both with 4 chips each
July 30, 2013, 08:38:54 AM
From reading what he has written, I don't have much confidence in chip99. I have more confidence in Mr. Teal - his prototype board picture looks more like what I would expect..
It has been some years since I worked as an electronics tech, but I can tell by looking at it that the Jala board was probably designed by someone with lots of theoretical knowledge but not much practical design experience - the parts count is way too high for what the board does.
I'm too a but worried that he used a different IC... He might have problems with firmware(he admitted that) but other then that and the price board looks good. But it looks like the price is not that hi... I have got quotes for mounting chips... First prices I got were way off. It looks like it will cost about the same as all components to mount 8 chips on board so this is extra 50 to 80€(need a sample to give me exact number) more per board.It has been some years since I worked as an electronics tech, but I can tell by looking at it that the Jala board was probably designed by someone with lots of theoretical knowledge but not much practical design experience - the parts count is way too high for what the board does.
And my friend told me that at the start. This board is to complicated. Well it is a good thing he didn't listen to me 100% and did some work on a new board... But for now we will take Jala to the stage and see what are problems since this board should be theoretically capable of taking 8 chips... Than we will see if there will be time to make board from screech or use one we planed from start...
July 30, 2013, 08:02:41 AM
From reading what he has written, I don't have much confidence in chip99. I have more confidence in Mr. Teal - his prototype board picture looks more like what I would expect..
It has been some years since I worked as an electronics tech, but I can tell by looking at it that the Jala board was probably designed by someone with lots of theoretical knowledge but not much practical design experience - the parts count is way too high for what the board does.
It has been some years since I worked as an electronics tech, but I can tell by looking at it that the Jala board was probably designed by someone with lots of theoretical knowledge but not much practical design experience - the parts count is way too high for what the board does.
July 30, 2013, 07:18:33 AM
I was right... They are not on a testing stage and they end up with same problem as I did. Increased price... chip99 just contact me asking if I can give them some sample chips for his board that will be ready in about 10 days...
July 30, 2013, 03:51:26 AM
I'm not that sure about testing stage... If you talk with him you get a filling they don't know much about what they are doing...
see: https://bitcointalksearch.org/topic/m.2780591
he might have a team behind him that dose but it is hard to say...
I did send also some personal messages and the chip99 and it doesn't fill me with confidence...
If he didn't lie the only difference to the plate is more capacitors. That will work up to a point but I don't think it will go above 4 chips maybe 6...
And what chip99 told me he is in about same position as I. Ready to order the board. Only difference is that board production house didn't give the estimate and then when ordering a quote that was 3 times more...
So I'm adding capacitors to Jala board with external board and they have a board made with them... Then I will add external power supply to see what happens. And if all is well we will have only one board made that will work well in first version... That save me 2000€(Jala was 1000€)... and dropped price of the board.
EDIT: And my samples are stuck in the US... Chicago... Grrr... Waiting for BFL to replay why...
see: https://bitcointalksearch.org/topic/m.2780591
he might have a team behind him that dose but it is hard to say...
I did send also some personal messages and the chip99 and it doesn't fill me with confidence...
If he didn't lie the only difference to the plate is more capacitors. That will work up to a point but I don't think it will go above 4 chips maybe 6...
And what chip99 told me he is in about same position as I. Ready to order the board. Only difference is that board production house didn't give the estimate and then when ordering a quote that was 3 times more...
So I'm adding capacitors to Jala board with external board and they have a board made with them... Then I will add external power supply to see what happens. And if all is well we will have only one board made that will work well in first version... That save me 2000€(Jala was 1000€)... and dropped price of the board.
EDIT: And my samples are stuck in the US... Chicago... Grrr... Waiting for BFL to replay why...
July 30, 2013, 01:44:40 AM
Found another group developing the boards. They are currently at the testing stage.
What they did is they used the BFL's design, verified it and fixed a few issue.
https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html
What they did is they used the BFL's design, verified it and fixed a few issue.
https://forums.butterflylabs.com/bfl-forum-miscellaneous/3831-board-bfl-chips-group-buy-chips.html
July 29, 2013, 12:32:50 AM
If you read this:
http://eligius.st/~gateway/products/mining-patty
It sounds like there will be another board to control that board...
http://eligius.st/~gateway/products/mining-patty
It sounds like there will be another board to control that board...
July 28, 2013, 04:26:30 PM
For now I would say this is a test board... It doesn't look to have COM USB interface and it has a lot of what it looks to be debugging interfaces... It also looks to be missing some other power parts... And it looks like power paths to chips are too thin if there are any in this picture. So I think this will change a lot... But it is a weary simple design if you camper it to BFL board... Now I'm not sure all that BFL board has is needed(for example testing power usage of chips to see if they are working) but I would guess that this is there with a reason(detect reset chip and restart it)...
Now if you just look at BFL and Bitfury chips you see that they are really different and I don't see a way to get them on a same "socket". Now I did think about the idea to mount BFL chip on a special board and then put it on a board much easier. But I would guess that you can't since you need cooling them that way. There is no other reason as far as I know to do a chip like that. And for Bitfury chips there is no real reason to add it to a board that would make it interchangeable with BFL since that would make them much harder to mount... So I would guess 2 different boards at the end but same design.
Now if you just look at BFL and Bitfury chips you see that they are really different and I don't see a way to get them on a same "socket". Now I did think about the idea to mount BFL chip on a special board and then put it on a board much easier. But I would guess that you can't since you need cooling them that way. There is no other reason as far as I know to do a chip like that. And for Bitfury chips there is no real reason to add it to a board that would make it interchangeable with BFL since that would make them much harder to mount... So I would guess 2 different boards at the end but same design.
July 28, 2013, 03:05:22 PM
Anyone else catch this on the linked page? (bolding added)
Quote
Custom ASIC mining board designed by Ascendion for BFL and/or Bitfury ASIC chips.
That freaks me out a little. I wouldn't have thought the two are interchangeable. Makes me question what the real intent here is. Two different boards? One board with some form of swappable socket? Mix-and-match chips on one board?
July 28, 2013, 04:49:09 AM
Well i don't see com usb interface chip... Interesting... And I can't read from IC witch one was used. But I'm using phone at the moment so I'm not that sure...
July 28, 2013, 04:37:56 AM
Considering its made by a semi bfl engineer, I'd say it will work
July 28, 2013, 04:31:01 AM
July 28, 2013, 01:41:31 AM
Well his board looks OK and with this cost my would cost about the same so yes it is a good option but none guarantees that his will work. He is using different IC... So it is not 100% that it will work in time... But just taking the board and use it is not a problem. For now I will not stop work on board.
Stock Jala will probably work with 4 maybe even 6 chips but what we are planing is to do what we were planing to do with test board. It will not be on a same plate but on a separate more simple and cheap board... about 100€ that can be made in house... And with this we can reasonably well see what chips are doing and make a board that will work well first time. It is not ideal but we need to make the best of the situation...
Stock Jala will probably work with 4 maybe even 6 chips but what we are planing is to do what we were planing to do with test board. It will not be on a same plate but on a separate more simple and cheap board... about 100€ that can be made in house... And with this we can reasonably well see what chips are doing and make a board that will work well first time. It is not ideal but we need to make the best of the situation...
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