Topic: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili - page 29. (Read 73149 times)

Ah ok. I checked again the specs from here:
http://www.molex.com/molex/products/datasheet.jsp?part=active/0455580002_PCB_HEADERS.xml&channel=Products

Max load per pin is here 6 / 2 * 8A * 12V = 288 W. Also enough for the board.
Thx for your comment.

Cheers...

There is another thread explaining the power capacity of PCI-E plugs 6pin verses 8pin.
It explained that 6pin 75w is only a rating for GPU devices, the plug itself can go far higher.

I havn't been able to find it again, (it was a few months ago) maybe another reader can remember where it was and post the link?

Free standing power supplies of 400w and more are also using dual 6pin PCI-E plugs.

Ah you can put them on my boards. I don't want side usage normally too for the trimmers.
The reason is I want as many as possible in a 4HE 19" Serverrack to put them to a air conditioned server room and top connections will help. So I want to have so less space as possible between much boards.

Another question:
I read yesterday the PCI-E 6pin power plug is certified only up to 75 W against 8pin power plug is certified up to 150 W. Maybe by 15W per chip and 8 Chips they consuming > 120 W. Maybe you should redesign to 8pin plugs (which have 2 more gnd connections).

Cheers....

What!!!!!!  "no green light" on our miners!!!!!!!!!!!!!!!!!!!!!!!

Thanks! As you know by mail updates for GB buyers I was up for 1,5 hours more And daughter decided that I have enough sleep at 7am... But luckily girlfriend helped me to get 1 hour more... And we went to Adriatic coast to charge my battery and so that I spend some time with them... Had nice day... Tomorrow back to work... Now some pictures...



But there were some screw ups by me, suppliers and some just a force of circumstances... They send different capacitors. Same value but not type ordered... Next one is that we could not get red and green diode in time so board has only red ones... And I ordered by mistake wrong PCI-e plug... So it is not plugged in from side but from top  

EDIT: All but led will be fix for next run...

Sleep well Lucko

OK so today we finished first production board and 3 are done to reflow ready state... (This means that board are as the one we are selling as reflow ready. No plastic parts on and no capacitors or power modules. The way they come out of reflow oven) Chips are nice and levelled... All looks good...

One finished board was(my with samples on it) tested in various ways to validate there was no mistakes done in assembly process(impotent since this are last samples and first automated run). I know I'm moving slow but I will rather do one test more then burn chips and need to experiment on costumer board. When I will know that process is OK we will move faster.

It is weekend but we will continue on Sunday(board guy I have hire in Slovenia can't do it tomorrow) so next updates and probably hashes comes at that time... I'm pretty sure we will have all boards done on Sunday... I will update you with some pictures tomorrow... It is 1:27 am as I write hire and just came home...

16 chips in hand. Please send a shipping address and an address for payment for the board and mounting.

Please let me know if/when chip mounting will begin.

Thanks.

Sent today in advance board value for my batch 3 chips with batch 3 chips value.
Hope this can help ( a little )...

Yes I will...You are right... I had to work a lot today so I was away till now. I was also some time at assembly facility. There was a small problem since we used rev 1.2 boards. Rev 1.3 boards are just about to be delivered and this problem is solved there.

We needed to add some more reference points on board. It is noting to do with electrics... So at this moment I did stop making process so we can change program for P&P machine so there will be no problem with boards made on rev 1.2. Will do all that is needed tomorrow and I was promised pick and place again day after...

af_newbie don't worry your chips were not touch as promised I experiment with my remaining samples. I was just unhappy with positioning. It was just not good enough. Unfortunately that happens with first runs(till now we did board by hand)... Could do your boards by hand(chip part) but since cooling is not yet made I didn't. As explained in mail I had only one orders for test board and since I didn't had any orders by that time I didn't think I will need one so fast...

So I repeat. Everyone start planing ahead. I don't have money for more then 10 boards stock so order ahead of time.

Chips for sale:

https://bitcointalksearch.org/topic/m.3316432

Lucko,

Since JJ dropped out will you still offer EU mounting for folks in the US who have chips already?

Thank you by explanations, I will send this week PM w/ SEPA transfer details

Hi Lucko,

Thanks for not giving up as the little bit of more detail you put in this explanation answered all my Questions.

I will PM you the Ebay Link now.

We will pay for 8-chip board and send you payment for 16 chip board from GB#1
Also send you chips and payment for more 16-chip boards.

Cheers!

I have send some emails to GB list... Have you forgot to give me your mail? Yes you should order by end of the week. I might not been clear on that...

We don't have enough working samples for 16 board test. We got a lot of DOA... Could be BFL packing could be something else... Hard to say. We only know that all panic with soldering(first thing we thought it was wrong) and then checking board unnecessary. As I already explain we test that by moving chips around the board and see same chips working. But I agree until we have a working 16 chip board there is always possibility it might not work... Even if small really chance.
OK some bad news. JJ had to much work with his mining facility so he will not be able to work on boards as well. So we lost US mounting... Sorry... I will see if I can find a replacement or something but for now we are EU only...

MikeMike. I give up when I was asked for 3th time... This is last time. As GB buyer you will get hosting (free you pay only electricity) for that board till other 8 chips arrive. You need to pay for 8 chip board and when your chips arrive pay difference to 16 chip board. To avoid re-soldering and possibly damaging chips I will make 16 chip board with my chips so there is no danger for chips. I'm doing my best to help all GB buyers so that my wrong estimates don't affect you too much... I think most will agree. But yes sorry forgot to send the address but there is that eBay think you suggest I'm waiting... Please understand that now that I need to handle US and EU I have much more work that I thought I will have and it is easier for me to miss something.

So if I missed something. Some mail or PM please resend... I will adjust but I was not ready for that.

Could you provide an address so we can send you our chips to mount on the boards you will host for us.
 Also please respond to the Emails regarding the 8-chip board arrangement.

Much thanks!

My 112 chips are now on their way to Lucko by EMS.  Here's hoping they soon make their way onto boards and into hashland.


Glad to see BFL didn't disappoint in this regard.  

Hello Lucko, Form

Can you give us some news/update on COINTAMINATION 16 board testing?
With Batch 1 delivery imminent, It is planed any deadline to order it?


Regards

JJ is gone again so I don't think it will work(he is working on his mining facility). He didn't finished store yet. For now I'm the one you PM And I'm taking care of all world at the moment

I would have ordered further in advance, but I wasn't too sure of receiving the chips (I bought from another forum member).

I've placed my order now, but it needs some manual processing in the web store.  I've PM'd JJ.