BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili - page 29.

MrTeal

legendary

Activity: 1274

Merit: 1004

I just wanted to post here as a warning to anyone looking to buy a Cointamination board in the US to be sure to go to Lucko and not to purchase anything through JerimiahJohnson.

JerimiahJohnson is in fact Thomas Van Riper, who went by cablepair here. He's scammer tagged and still owes bASIC customers very large sums of money. As someone who had orders for bASIC products on order with him, I would not trust him with a dime. Go directly to Lucko.

jelin1984

legendary

Activity: 2408

Merit: 1004

I have 4 chips for sell lucko
Batch 2

MikeMike

legendary

Activity: 2254

Merit: 1020

★ Ⓚ KORE TEAM Ⓚ ★

Might be interested in Buying some chips.
Please PM IF selling...

af_newbie

legendary

Activity: 2702

Merit: 1468

Quote from: asjfdlksfd on October 20, 2013, 11:43:32 AM

Quote from: af_newbie on October 20, 2013, 09:13:07 AM

Side, top, under angle, it does not matter. I'll not be putting them in cases or look at them. Red, greed or any other color LED are fine.
All it matters is that they hash, and don't catch fire.

I'll place the parts in a server room. It is essential to mount them in a related case.

Cheers...

Mine (PSU+board+rpi) are on a piece of plywood, 3/4" stands. Works well. I can move my setup anywhere. Server room, basement, shed whatever.
As long as it does not rain on it. Remember, in 6-8 months you'll be upgrading anyway. What are you going to do with the custom case?

I learned the hard way, don't over invest in the setup. In time, all our mining hardware will go on the curb anyway. IMHO.

asjfdlksfd

full member

Activity: 128

Merit: 100

Quote from: af_newbie on October 20, 2013, 09:13:07 AM

Side, top, under angle, it does not matter. I'll not be putting them in cases or look at them. Red, greed or any other color LED are fine.
All it matters is that they hash, and don't catch fire.

I'll place the parts in a server room. It is essential to mount them in a related case.

Cheers...

asjfdlksfd

full member

Activity: 128

Merit: 100

Quote from: one4many on October 20, 2013, 08:23:03 AM

+1 ... I don't like cables to side as well, they are almost every time in the way when getting board into cases. Same goes for the USB cable on the board.

@asjfdlksfd Do you have special designed case? I would be interested.

No, not yet. I would like a Server case for ATX-E boards. One which I've bought in the past have tree 12 or 14cm fans (must check it again) which blows from front to back.
In Front left and right are normally the drives installed. Maybe up to 6 boards can be fittet, but I will check them first I got the pcb sample from lucko (one of the reason why I want to get a board from you)

The other part I've found is the usb port should also be pluggable from top. So dependend on the space I can replace them.

Cheers...

af_newbie

legendary

Activity: 2702

Merit: 1468

Quote from: one4many on October 20, 2013, 08:23:03 AM

Quote from: asjfdlksfd on October 19, 2013, 02:30:22 PM

Quote from: Lucko on October 19, 2013, 11:27:07 AM

And I ordered by mistake wrong PCI-e plug... So it is not plugged in from side but from top Roll Eyes

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.

+1 ... I don't like cables to side as well, they are almost every time in the way when getting board into cases. Same goes for the USB cable on the board.

@asjfdlksfd Do you have special designed case? I would be interested.

Cheers

one4many

Side, top, under angle, it does not matter. I'll not be putting them in cases or look at them. Red, greed or any other color LED are fine.
All it matters is that they hash, and don't catch fire.

one4many

hero member

Activity: 516

Merit: 500

Quote from: asjfdlksfd on October 19, 2013, 02:30:22 PM

Quote from: Lucko on October 19, 2013, 11:27:07 AM

And I ordered by mistake wrong PCI-e plug... So it is not plugged in from side but from top Roll Eyes

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.

+1 ... I don't like cables to side as well, they are almost every time in the way when getting board into cases. Same goes for the USB cable on the board.

@asjfdlksfd Do you have special designed case? I would be interested.

Cheers

one4many

asjfdlksfd

full member

Activity: 128

Merit: 100

Quote from: asjfdlksfd on October 19, 2013, 02:30:22 PM

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.

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...

Mudbankkeith

hero member

Activity: 868

Merit: 1000

Quote from: asjfdlksfd on October 19, 2013, 02:30:22 PM

Quote from: Lucko on October 19, 2013, 11:27:07 AM

And I ordered by mistake wrong PCI-e plug... So it is not plugged in from side but from top Roll Eyes

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....

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.

asjfdlksfd

full member

Activity: 128

Merit: 100

Quote from: Lucko on October 19, 2013, 11:27:07 AM

And I ordered by mistake wrong PCI-e plug... So it is not plugged in from side but from top Roll Eyes

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....

Mudbankkeith

hero member

Activity: 868

Merit: 1000

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

Lucko

hero member

Activity: 826

Merit: 1000

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 Roll Eyes

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

Mudbankkeith

hero member

Activity: 868

Merit: 1000

Quote from: Lucko on October 18, 2013, 06:27:21 PM

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...

Sleep well Lucko

af_newbie

legendary

Activity: 2702

Merit: 1468

Quote from: Spieder on October 15, 2013, 08:42:08 PM

Lucko,

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

PM him. I'm in Canada and I delivered my chips to him yesterday. I think the cooling is being re-designed at the moment.
The one JJ had was too noisy from what I heard. In few more days, we should see first 16 chip board hashing.

Don't quote me on this. Lucko is the only one who knows the timelines...

Lucko

hero member

Activity: 826

Merit: 1000

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...

Choadmeyer

sr. member

Activity: 495

Merit: 250

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.

bx8389

member

Activity: 80

Merit: 10

Quote from: Lucko on October 11, 2013, 12:49:29 PM

Please don't do that last second... It takes time to get all the parts...

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

Quote from: Lucko on October 16, 2013, 01:26:15 PM

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

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

Lucko

hero member

Activity: 826

Merit: 1000

Quote from: Spieder on October 15, 2013, 08:42:08 PM

Lucko,

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

Yes I will...

Quote from: af_newbie on October 16, 2013, 11:00:39 AM

Quote from: Spieder on October 15, 2013, 08:42:08 PM

Lucko,

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

PM him. I'm in Canada and I delivered my chips to him yesterday. I think the cooling is being re-designed at the moment.
The one JJ had was too noisy from what I heard. In few more days, we should see first 16 chip board hashing.

Don't quote me on this. Lucko is the only one who knows the timelines...

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.

MikeMike

legendary

Activity: 2254

Merit: 1020

★ Ⓚ KORE TEAM Ⓚ ★

Chips for sale:

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

Topic: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili - page 29. (Read 73081 times)