[Work in progess] Burnins Avalon Chip to mining board service

[flohlie]

Because Burnin says that his website is up in very short time, i have to ask:

I have some GPU:s mining currently and because of failing some GPU:s, on one of my computer i have currently only 1xRadeon 7970 on Corsair 850 Watt PSU.
There is no any reason to buy new GPU:s @ the moment, so will it be enough to power 3 x fully overclocked BitBurners(20 chip each), computer and also overclocked Radeon 7970?

I think we can NOT do the math for you, because we don't know how much power your other components need.
Just use google to look for the power needed by your peripherials, CPU, GPU, etc and subtract all that from your 850W....
If the remaining power is more than 300W (plus some safety of 50 - 100W?) you should not get into trouble....

best regards,
Florian

[torzsy]

Because Burnin says that his website is up in very short time, i have to ask:

I have some GPU:s mining currently and because of failing some GPU:s, on one of my computer i have currently only 1xRadeon 7970 on Corsair 850 Watt PSU.
There is no any reason to buy new GPU:s @ the moment, so will it be enough to power 3 x fully overclocked BitBurners(20 chip each), computer and also overclocked Radeon 7970?

I think we can NOT do the math for you, because we don't know how much power your other components need.
Just use google to look for the power needed by your peripherials, CPU, GPU, etc and subtract all that from your 850W....
If the remaining power is more than 300W (plus some safety of 50 - 100W?) you should not get into trouble....

best regards,
Florian

7970 eats 250W max even overclocked. I have a rig with only an Asus 7970DC2T, it pulls 360W from the wall. So you should be fine with the 3 BitBurners and one 7970.

Cheers!

[a2offrb]

Thanks both for the answers.
I think nothing bad will happen if i overload psu?
It will broke or just shut down automatic, it doesnt cost so much as 7970 or BitBurner20

[torzsy]

Thanks both for the answers.
I think nothing bad will happen if i overload psu?
It will broke or just shut down automatic, it doesnt cost so much as 7970 or BitBurner20

PSU will die after a while if you run it overloaded. Voltage output will fluctuate, so your hardware can go wrong. I think you should buy a smaller PSU for the BitBurners, even a Thermaltake TR2 RX with 430W would be fair enough. And its cheap, ~ 50 USD.

[madmax_ger]

I think it's time for...



 

[eros]

EMC sensitivity? oh boy! thats something you definitely not want with your mining board.

My contractor has already stocked all needed parts, 1st. batch of pcb's should arrive next week.

Fridge starts and K16 reset itself, laptop USB port generated noise lead 10% hw errors, but raspi usb port "only" ~1-2% hw erros. But you can read more in kolondike thread from pages ~80 -> (but do more important jobs first so we get boards

Btw have your PCB's bottom full painted? I mean have chip thermal vias solder only? (Solder is better heat conductor than paint). Your three test PCB have full painted bottom. Avalon boards have paint free squares.

[iikun]

EMC sensitivity? oh boy! thats something you definitely not want with your mining board.

My contractor has already stocked all needed parts, 1st. batch of pcb's should arrive next week.

Fridge starts and K16 reset itself, laptop USB port generated noise lead 10% hw errors, but raspi usb port "only" ~1-2% hw erros. But you can read more in kolondike thread from pages ~80 -> (but do more important jobs first so we get boards

Btw have your PCB's bottom full painted? I mean have chip thermal vias solder only? (Solder is better heat conductor than paint). Your three test PCB have full painted bottom. Avalon boards have paint free squares.

he actually responded to this issue a few pages back.  Shouldn't take too much time to find & he explains why he did this

[eros]

he actually responded to this issue a few pages back.  Shouldn't take too much time to find & he explains why he did this

OK find this:
"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)"

Well it makes difficult to solder heatsink on painted surface and using stripper will remove all paint. Not good. Electrical corrosion blah. If use same ground no broblem or use non conducting coolant.

[tigerbit]

he actually responded to this issue a few pages back.  Shouldn't take too much time to find & he explains why he did this

OK find this:
"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)"

Well it makes difficult to solder heatsink on painted surface and using stripper will remove all paint. Not good. Electrical corrosion blah. If use same ground no broblem or use non conducting coolant.

Would have thought this is to prevent galvanic corrosion. Bonding grounds won't help I think it's dissimilar metals that form a cell.  The aluminium would likely act as an anode to protect the copper and corrode aggressively.  This will be a prob in watercooled systems that mix metal types e.g. Copper rad and Alu heatsink with water electrolyte.

[-Redacted-]

he actually responded to this issue a few pages back.  Shouldn't take too much time to find & he explains why he did this

OK find this:
"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)"

Well it makes difficult to solder heatsink on painted surface and using stripper will remove all paint. Not good. Electrical corrosion blah. If use same ground no broblem or use non conducting coolant.

You don't solder on heatsinks, you use thermal pads or paste..  If you could solder them on, then almost by definition they aren't good heatsinks.

[eros]

You don't solder on heatsinks, you use thermal pads or paste..  If you could solder them on, then almost by definition they aren't good heatsinks.

I'll solder, and they are good. Don't worry. 450@ ~40..45C

[AMD FTW]

he actually responded to this issue a few pages back.  Shouldn't take too much time to find & he explains why he did this

OK find this:
"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)"

Well it makes difficult to solder heatsink on painted surface and using stripper will remove all paint. Not good. Electrical corrosion blah. If use same ground no broblem or use non conducting coolant.

You don't solder on heatsinks, you use thermal pads or paste..  If you could solder them on, then almost by definition they aren't good heatsinks.

He's probably asking this because he either has experience or has heard that good conductive solder will beat thermal paste or thermal pads in performance. Intel Ivy bridge Cpu line used thermal paste on their chip line which was different from the past when they normally solder the heat spreader to the die. You'd install the intel heatsink (or better aftermarket one) with thermal paste between the heatsink and chip spreader. So many enthusiasts were pissed about this on computer forums that they would pry the heat spreader off (voiding there warranties) and use a high quality thermal paste between the cpu die and heatsink. With this it allowed a relative improvement in temperature and overclocking headroom compared to the inferior or poorly applied intel thermal paste.

[driksson]

EMC sensitivity? oh boy! thats something you definitely not want with your mining board.

My contractor has already stocked all needed parts, 1st. batch of pcb's should arrive next week.

Fridge starts and K16 reset itself, laptop USB port generated noise lead 10% hw errors, but raspi usb port "only" ~1-2% hw erros. But you can read more in kolondike thread from pages ~80 -> (but do more important jobs first so we get boards

Btw have your PCB's bottom full painted? I mean have chip thermal vias solder only? (Solder is better heat conductor than paint). Your three test PCB have full painted bottom. Avalon boards have paint free squares.

Please read after page 80 yourself,  page 123 to be exact, 0.6% stable at 340mhz.. But its very irrelevant to this thread, the only similarities between the boards are use of Avalon chips and custom CgMiner drivers.. https://bitcointalk.org/index.php?topic=190731.2440

[robix]

13 weeks passed since zefirs first orders 

[Tursk]

13 weeks passed since zefirs first orders 

Which now has been shipped

https://bitcointalk.org/index.php?topic=177827.msg2778325#msg2778325

[robix]

13 weeks passed since zefirs first orders  

Which now has been shipped

https://bitcointalk.org/index.php?topic=177827.msg2778325#msg2778325

Hmm, just one batch so far.

[tiros]

13 weeks passed since zefirs first orders  

Which now has been shipped

https://bitcointalk.org/index.php?topic=177827.msg2778325#msg2778325

Hmm, just one batch so far.

Looks like separate batch orders, ordered closely to each other, will not be in same shipment if they were about to be delivered to same address. Bummer 

[Micky25]

Looks like separate batch orders, ordered closely to each other, will not be in same shipment if they were about to be delivered to same address. Bummer 

A logical continuation of the previous highly professional business behavior. 

[BenTuras]

TL;DR : 9PM GMT / 11PM CET email with shop URL

Dear Ben,

the moment you have all been waiting for has come, i am about to open my webshop for ordering the BitBurner boards.
At 21:00 GMT (9PM) you will receive a second email indicating the shop's URL.
This is less advance warning then I had promised, but a bug in the shop kept me from announcing it.
Final prices:
BitBurner 10 Chip Complete: 98 eur
BitBurner 20 Chip Complete: 105 eur
BitBurner 10 Chip without cooler: 90 eur
BitBurner 20 Chip without cooler: 96 eur
Water cooler: 50eur
Bare PCB: 25eur <<NOT recommended unless you have a very good PnP machine and a reflow oven (405 Components, mostly 0402 or less).

All prices are without VAT, when ordering from the EU 19% VAT is added.
If you have an valid EuSt number you can also order tax-exempt from the EU.

Payment can be done through: Bitcoin, SEPA wire transfer and PayPal.

The policy for assigning the chips has changed:
The previous scheme of gathering all the signed messages turned out to be too much work load on my side.
Now you must inform your chip supplier that you want your chips to be assembled by me.
The way how that is done varies throughout the suppliers, but in most cases its done through a signed message like before.
Only that you send it to your supplier instead of me.
Zefir for example has a dedicated website for that.

Thats all for now
Burnin

[jlsminingcorp]

Great stuff burnin, bring it on!