Topic: [Work in progess] Burnins Avalon Chip to mining board service - page 112. (Read 624197 times)

Oh... rest of the stack... I thought that means the remaining 9. Now the question is how often chips break. I guess overclocking will raise that probability.

If one chip fully stops working and does not forward messages, all chips from that defective one to the end of that row will not function.

If that defective chip still forwards messages, only its hashes are dropped (hw errors).

This sounds good. So when a chip fully stops working all others remain working.

I can't speak for Burnin of course, but I'm sure if it was easy for his design to do this he would've done it that way already.

Also, I found my previous answer is only partly correct sorry. According to Burnin's quote below it depends on the failure mode:

Yes, which i believe would not be the case on the Klondike boards. Would it be possible to only have that very one chip stop working only instead (and even indicated, what ships are delivering and not so it can be replaced)? i think that is the question. Which i also would like..

I could be wrong but I believe he said before that if one chip stops working it will only affect one side of the board (10 chips). So if a chip stops working on an XX board you will still have one side working at least.

Genius... you beat the original developer Avalon...

Can you say something about how easy overclocking will be? Is it a switch or something? I believe Klondikes need soldering for doing that, i hope overclocking and overvolting is easier with bitburners.

And can you tell the name of the fan, or if its noname the airvolume, size and so on?

Then... what about breaking asic-chips? Will 10 chips stop working when one breaks? And does this one has to be replaced in order to let all chips run again?

Thanks!

@Exoskeleton ... I wrote the same as you. When chips arrive earlier than others that paid earlier the chips that are available will be worked up. But the order number will be the first priority because otherwise burnin would have to do work without sense by finding out whose chips batch was ordered earlier at avalon and so.
But i think we see it the same way anyway.

Up to 405 parts?... What parts were added? Do you, or will you have all parts and components ready to assemble when chips arrive?

Thanks for the hard work. Best of luck with your business venture.

@burnin: Hey is it possible to say how high the boards gonna be (including the heatsink) ?
I plan a custom cooling on my Asics and need the data how high two stacks would be or what the size of one will be ?
I planned with a height of approximately 60mm based on the assumption that the fan is 80mm of cooling size + some mm for saftey.( comes from the assumption, that the long side of the board has 100mm and the fan needs to be a little smaller)
I would be very happy if you could provide any further information of the approximately height !

Do you think there is still more OC for the WC cooled devices ?(Maybe reaching 500 with 1.5V ?)
What is the Maximum volts, which can be set?

Thanks for you amazing work.

Hi all, thanks for putting my mind to rest. I think I was going a bit crazy last night with visions of a server apocalypse! Sounds like this is unlikely.

Thanks again for all of your hard work burnin, this is a great project.


Yes indeed, this has been demonstrated here many times !
 

Case closed.  


[/quote]

I concurr. He wont ship someone elses chips to you, just because you ordered your boards earlier. And as you said, if multiple batches arrive same day, they are delivered by your place in order queue..

How exactly is burnin supposed to build your miner without your chips in hand? If he receives your chips at the same time as he gets mine, and your first in line (first to pay), you go first obviously. But if he gets my chips first and he does not have your chips yet, I go first. You have to wait untill he has your chips in hand to start your order. Its that simple.

As I just stated in a previous post, being first in line only helps if he gets multiple batches on the same day and your batch is one of those. If you ordered in may, and your batch does not show up untill 1 month after the april orders, you won't get your miner made untill your chips show up a month later. Burnin cannot make your boards untill he has your chips in hand.

This is why I was stressing that the real hold up could be the delay between batches. If Avalon ships all the chips on the same day, then order placement with burnin will be the only factor who goes first. Otherwise the order in which he receives batches of chips is the main determining factor in what order miners get made. Within the constraints of the chips he has available, order placement with him will put you in the front of the line. But if he does not have your batch of chips in hand your not going to be in line yet.

This seems fair, simple, and obvious to me, but I don't want to speak for burnin. Perhaps he could clarify this to those still arguing against this model.

Oh wait... he already did...


And if your chips are in seprate batches...


Case closed. 

WOW! Excellent, excellent! Burnin, that is a really impressive result, congratulations!

+1
Yes Please!
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Burnin,

You said in regards to air cooled over-clocking:
"Slightly different air cooling setup therefore different temperatures with air cooling. (fan placement)"
-Would this work with stacked boards or is the fan placement maybe unconventional just to get that umph?

You said:
"slightly increased error rate compared to what i normally call "stable" but close enough."
- What does that mean, maybe the numbers or the log/report from cgminer would clear this up?

-What is your personal opinion or gut feeling on longterm air cooled over-clocking at
 450 - 57, 52, 1.34V, 94W?

*I want to thank you for all your efforts, professionalism, and forthcomingness with info, updates, and questions!*

May want to provide 12V on both the PCI pin and with some crazy barrel plug -> 12V SATA power adapter or something - looks like those 12V inputs are wired together

That's amazing.  Well done!  450MHz on air cooling - Bitsyncom seemed to suggest this would not be possible on air.  Congratulations - now hoping for a stable and high quality production run to repeat your brilliant achievements.  @94W I'm not sure I'll actually want to go that high due to PSU sizing, but it just shows what a quality product you've achieved here.  Thank you.

Grats for being the first one to hit that speed stable! Great job!

Edit: burnin please plan the PSU so that it accommodates with the overclocking figures and with stacking. thank you.

You are correct about the pnp machine (i am up to 405 parts now btw).
But i am a professional, and as such I do what I can do best and outsource the rest!
Therefore i'll use a fulfillment service to do the packing and shipping.
I know that any delay will cost YOU, my customers real money and therefore getting your stuff to you ASAP is a priority for me.
Exposing the copper on the bottom will increase the thermal coupling but i want to keep the heat sinks isolated.
(Important for water cooling, electrical corrosion)



Shop Timing:
I agree that this is not the optimal strategy for things like this.
But with all in all 500 People ordering stuff things should not break instantly.
(did choose a beefy server)

And i have some numbers to go with those from yesterday:
Slightly different air cooling setup therefore different temperatures with air cooling. (fan placement)
TL;DL : 450Mhz [9Ghash/s] - STABLE
But at the cost of 94Watts of power.

Air:
431 - 54, 48, 1.30V, 87W, stable
450 - 56, 48, 1.30V, 90W, HW Errors
450 - 57, 52, 1.34V, 94W, slightly increased error rate compared to what i normally call "stable" but close enough

Water:
450 - 54, 32, 1.34V, 94W, slightly less hw errors then with air

Burning boards have ~320 parts and pnp machine handles ~22000cph. So ~70 boards per hour. He can handle over 10000pcs avalons in normal 8hrs workday. But broblem arise from postage. It takes lot of time to pack boards and post to many customers. If average order is ~200 avalons ~10boards it means 50 pack/post per day. And he is alone and have other work too. But if things gone well he handle all orders in week.

Burning test pcb bottom are full painted. Orginal avalons have solder square in every chip locations. I think solder is better heat conductor than paint. Maybe he corrected it production boards..?

No particular reason. Your version sounds reasonable too.