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Topic: Avalon ASIC users thread - page 105. (Read 438516 times)

sr. member
Activity: 294
Merit: 250
August 07, 2013, 11:47:23 PM
It's only a power distribution board with melted connectors.

If somebody can post a good pic that shows all the traces, you should be able to test every single trace with a continuity tester.

Mark which one does not test good.

Then take it to a component level repair place and have them fix the traces. It won't be cheap, and it will take time, but it can be done. Resolder connectors on there, replace all capacitors, and you should be good to go.

If there is an actual chip on there that needs to be replaced, you might be screwed totally.





that;s assuming i have the pinouts
sr. member
Activity: 408
Merit: 250
August 07, 2013, 11:23:04 PM
Oh, I see. Seems kind of stupid that Corsair, OCZ and all those suppliers *assume* that the only application for their PSU is a PC.

I'd appreciate if you could point me to some thread that tells me how to "trick" the rest of the cables. I have a Corsair 750W and I read the manual but never did it say anything about connecting all of them.

However, I was planning to ONLY use the Molex connectors for my mining application anyway (I don't require the use of the 24-pin connector). Not sure if I'd be in trouble as well or whether the burning issue only happens when connecting the 24-connector cable alone...thoughts?

The PSU worked fine, it was the connecting wire that had a problem, it appears to have caught fire and spewed molten plastic all over the board.

Anyway, all you have to do is connect the 24 pin ATX connector along with the GPU connecting wires.

Not sure what are the other "connecting wires" you are referring . My mining board will only have molex for a fan but that's about it.
full member
Activity: 238
Merit: 100
August 07, 2013, 11:17:25 PM
Oh, I see. Seems kind of stupid that Corsair, OCZ and all those suppliers *assume* that the only application for their PSU is a PC.

I'd appreciate if you could point me to some thread that tells me how to "trick" the rest of the cables. I have a Corsair 750W and I read the manual but never did it say anything about connecting all of them.

However, I was planning to ONLY use the Molex connectors for my mining application anyway (I don't require the use of the 24-pin connector). Not sure if I'd be in trouble as well or whether the burning issue only happens when connecting the 24-connector cable alone...thoughts?

The PSU worked fine, it was the connecting wire that had a problem, it appears to have caught fire and spewed molten plastic all over the board.

Anyway, all you have to do is connect the 24 pin ATX connector along with the GPU connecting wires.
hero member
Activity: 529
Merit: 501
August 07, 2013, 10:20:20 PM
It's only a power distribution board with melted connectors.

If somebody can post a good pic that shows all the traces, you should be able to test every single trace with a continuity tester.

Mark which one does not test good.

Then take it to a component level repair place and have them fix the traces. It won't be cheap, and it will take time, but it can be done. Resolder connectors on there, replace all capacitors, and you should be good to go.

If there is an actual chip on there that needs to be replaced, you might be screwed totally.



sr. member
Activity: 408
Merit: 250
August 07, 2013, 09:49:02 PM
If you're looking to buy/host some Avalon batch 3 modules or if you want to sell some batch 3 clone parts (specifically a PDU and some cables), please see this thread: https://bitcointalksearch.org/topic/m.2886697

So in retrospective, for those of us looking on what NOT to do and prevent accidents, why did this happen? That power supply should have handled current perfectly. Did you do custom cabling or what? I thought Avalon provided with proper cables. I still don't understand why this happened....

He ONLY installed the 24pin mainboard connector.

Sorry for my ignorance but what else was he supposed to connect? power only comes through one cable AFAIK.

I thought the same thing. And you if you try that, you'll end up with a melted miner. You have to hook up the 24pin ATX cable AND all of the power supply cables, like you would if you were supplying power to devices in your computer like a hard drive or a DVD player. Why it runs at all with only the single cable plugged in? I have no idea.

I've put this thread up as well to see how much interest is out there for buying Batch 3 modules: https://bitcointalksearch.org/topic/wts-avalon-batch-3-modules-sold-269845 I've gotten some serious offers, but most are lower than I was hoping.

Oh, I see. Seems kind of stupid that Corsair, OCZ and all those suppliers *assume* that the only application for their PSU is a PC.

I'd appreciate if you could point me to some thread that tells me how to "trick" the rest of the cables. I have a Corsair 750W and I read the manual but never did it say anything about connecting all of them.

However, I was planning to ONLY use the Molex connectors for my mining application anyway (I don't require the use of the 24-pin connector). Not sure if I'd be in trouble as well or whether the burning issue only happens when connecting the 24-connector cable alone...thoughts?


full member
Activity: 165
Merit: 102
Live life on purpose
August 07, 2013, 09:36:47 PM
If you're looking to buy/host some Avalon batch 3 modules or if you want to sell some batch 3 clone parts (specifically a PDU and some cables), please see this thread: https://bitcointalksearch.org/topic/m.2886697

So in retrospective, for those of us looking on what NOT to do and prevent accidents, why did this happen? That power supply should have handled current perfectly. Did you do custom cabling or what? I thought Avalon provided with proper cables. I still don't understand why this happened....

He ONLY installed the 24pin mainboard connector.

Sorry for my ignorance but what else was he supposed to connect? power only comes through one cable AFAIK.

I thought the same thing. And you if you try that, you'll end up with a melted miner. You have to hook up the 24pin ATX cable AND all of the power supply cables, like you would if you were supplying power to devices in your computer like a hard drive or a DVD player. Why it runs at all with only the single cable plugged in? I have no idea.

I've put this thread up as well to see how much interest is out there for buying Batch 3 modules: https://bitcointalksearch.org/topic/wts-avalon-batch-3-modules-sold-269845 I've gotten some serious offers, but most are lower than I was hoping.
sr. member
Activity: 408
Merit: 250
August 07, 2013, 09:17:35 PM
If you're looking to buy/host some Avalon batch 3 modules or if you want to sell some batch 3 clone parts (specifically a PDU and some cables), please see this thread: https://bitcointalksearch.org/topic/m.2886697

So in retrospective, for those of us looking on what NOT to do and prevent accidents, why did this happen? That power supply should have handled current perfectly. Did you do custom cabling or what? I thought Avalon provided with proper cables. I still don't understand why this happened....

He ONLY installed the 24pin mainboard connector.

Sorry for my ignorance but what else was he supposed to connect? power only comes through one cable AFAIK.
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
August 07, 2013, 08:44:36 PM
If you're looking to buy/host some Avalon batch 3 modules or if you want to sell some batch 3 clone parts (specifically a PDU and some cables), please see this thread: https://bitcointalksearch.org/topic/m.2886697

So in retrospective, for those of us looking on what NOT to do and prevent accidents, why did this happen? That power supply should have handled current perfectly. Did you do custom cabling or what? I thought Avalon provided with proper cables. I still don't understand why this happened....

He ONLY installed the 24pin mainboard connector.
legendary
Activity: 1246
Merit: 1002
August 07, 2013, 08:28:50 PM

I also need any tips you have on how to clean the circuit board. I was told isopropyl alcohol and qtips. I think the fourth module is going to be OK as I don't see any evidence of melting, bulging, etc, just what looks like burnt wire insolation.

you have access to what I need, please quote me a price and estimated delivery time via a PM.

To clean the soot, I would go to a Home Depot or an art supply store.  Look for a brush cleaner, paint thinner, or solvent that has "toluene" or "toluol" in it.  I think that would be the best thing to clean the soot.  Try a portion of the board that does not seem important before you try the whole board.

Do this outdoors.  Set it up in a cookie pan or some other containment where you can casually get up and walk away in case of fire.  Do not do it inside.

legendary
Activity: 910
Merit: 1000
August 07, 2013, 07:27:30 PM
Do Avalons come with install instructions?
sr. member
Activity: 408
Merit: 250
August 07, 2013, 07:23:51 PM
If you're looking to buy/host some Avalon batch 3 modules or if you want to sell some batch 3 clone parts (specifically a PDU and some cables), please see this thread: https://bitcointalksearch.org/topic/m.2886697

So in retrospective, for those of us looking on what NOT to do and prevent accidents, why did this happen? That power supply should have handled current perfectly. Did you do custom cabling or what? I thought Avalon provided with proper cables. I still don't understand why this happened....
full member
Activity: 165
Merit: 102
Live life on purpose
August 07, 2013, 06:01:58 PM
If you're looking to buy/host some Avalon batch 3 modules or if you want to sell some batch 3 clone parts (specifically a PDU and some cables), please see this thread: https://bitcointalksearch.org/topic/m.2886697
full member
Activity: 165
Merit: 102
Live life on purpose
August 07, 2013, 04:49:57 PM


Another option is to have someone host your modules.


Hosting would be interesting... there'd have to be a lot of trust on both sides. I'd recommend the owner of the module would need access to the pool login or something like that to ensure things are running smoothly, maybe settling out every week. How would the owner guarantee future payouts? Nothing prevents someone from just pointing it to a different pool and the owner would have no recourse.   

Big money, no recourse, and strangers make for interesting dynamics.

I sold shares in my current Avalon.  I mine at eligius, and the statistics are all visible to the public.  There is no password at the pool, and no administrative tasks to perform there.  That payout address is dedicated to those 3 modules.  It is pretty clear when down-times are, and I usually post something in the auction thread.  Yesterday it was down about a half hour, and I linked to a nice photo of a friend holding some hailstones.

I would use a different payout address for the 4th module.  I could point it to the owner's address directly, and trust him to make the fee payment back to me, after all, I would be holding pretty good collateral.  For physical recourse in case of theft or catastrophic auto accident or whatever twists life throws, I suppose there could be a contract stating that the module remains the property of the owner and is to be returned at any time, for any reason, id documents, and of course a signed shipping receipt.  I don't know who would enforce such a document, perhaps the local police would do a "health & welfare" check.

I sent off some enquiries about getting a replacement controller.

Thank you. I've sent some enquiries as well to those who already responded to me.

Here's a breakdown of what I think I need:

- One (1) PDU (?) (what I have looks slightly different than this picture): https://en.bitcoin.it/wiki/Avalon#PDU

Mine also has plugs for the fans and what appears to be a different configuration. Maybe the wiki isn't updated with Batch #3 components?

Here's the mess:









- four (4) power cables.
- one (1) usb cable
- one (1) 10-wire cable connecting the PDU to the Control Unit
- 5 zip ties

I also need any tips you have on how to clean the circuit board. I was told isopropyl alcohol and qtips. I think the fourth module is going to be OK as I don't see any evidence of melting, bulging, etc, just what looks like burnt wire insolation.



If you have access to what I need, please quote me a price and estimated delivery time via a PM.
legendary
Activity: 1246
Merit: 1002
August 07, 2013, 04:36:54 PM


Another option is to have someone host your modules.


Hosting would be interesting... there'd have to be a lot of trust on both sides. I'd recommend the owner of the module would need access to the pool login or something like that to ensure things are running smoothly, maybe settling out every week. How would the owner guarantee future payouts? Nothing prevents someone from just pointing it to a different pool and the owner would have no recourse.   

Big money, no recourse, and strangers make for interesting dynamics.

I sold shares in my current Avalon.  I mine at eligius, and the statistics are all visible to the public.  There is no password at the pool, and no administrative tasks to perform there.  That payout address is dedicated to those 3 modules.  It is pretty clear when down-times are, and I usually post something in the auction thread.  Yesterday it was down about a half hour, and I linked to a nice photo of a friend holding some hailstones.

I would use a different payout address for the 4th module.  I could point it to the owner's address directly, and trust him to make the fee payment back to me, after all, I would be holding pretty good collateral.  For physical recourse in case of theft or catastrophic auto accident or whatever twists life throws, I suppose there could be a contract stating that the module remains the property of the owner and is to be returned at any time, for any reason, id documents, and of course a signed shipping receipt.  I don't know who would enforce such a document, perhaps the local police would do a "health & welfare" check.

I sent off some enquiries about getting a replacement controller.
full member
Activity: 165
Merit: 102
Live life on purpose
August 07, 2013, 03:32:54 PM
I was wondering too.

Did you get a reply from Yifu ?

I emailed the info@ address and got a reply from NG Zhang about an hour later. I have yet to receive a follow up reply.

Thanks to everyone for the suggestions. I've contacted a few clone builders and am going to take everything apart right now to get an idea of what parts I need and how much they will cost.

Another option is to have someone host your modules.

I have been approached by someone who wants me to host their module in my Batch #2 Avalon.  I have thought of building up several additional "zero module" Avalons and offering a module hosting service.  If I stepped up the efforts on that, it would match up with your situation of modules that need a host.  Essentially, I am at the same place that you are, I need another controller.

I also have thought of having a repair service.  I have repaired 1 Avalon thus far.  I work with (use, troubleshoot, repair, cuss at, design) high dollar scientific instruments in my profession.

I don't know what a fair price is for hosting a module.  I am assuming I would be paid in bitcoins as it mines, but I don't know what the split should be.

Do you encourage me to get a "zero module" Avalon in operation?

That's a really interesting question. I'm interested, but first I want to take what I have apart and figure out what the costs (and timeframe) would be of getting this thing running again. I'll probably start up a thread about selling these modules as well, to gauge interest there.

Hosting would be interesting... there'd have to be a lot of trust on both sides. I'd recommend the owner of the module would need access to the pool login or something like that to ensure things are running smoothly, maybe settling out every week. How would the owner guarantee future payouts? Nothing prevents someone from just pointing it to a different pool and the owner would have no recourse.   
full member
Activity: 182
Merit: 100
August 07, 2013, 03:18:27 PM
I've been running my 4 module version Avalons at 350mhz using the stock PSU. Is this bad?

I have had 7 Avalons at 350mhz running on the stock PSU for about a week. I did have to replace one PSU, but otherwise they seem to be running fine.

In my previous experience when a PSU goes bad, the whole machine just shuts off, after replacing the power supply everything is good to go and no extra harm was done.

Am I taking a large gamble of the PSUs failing and potentially harming the equipment?

I read in the Batch 3 thread that a four module Avalon @ 350mhz runs at 930 Watts at the wall. I think the Avalons only ship with 850w PSUs. So obviously what I'm doing is probably risky, I'm just wondering how risky??

I would say you are very lucky. We have 2 4 module avalons with stock PSUs, and both are very unstable at anything over 300 MHz. Replaced one so far with a 1200w corsair PSU, and it runs solid at 350MHz static overclock. In fact it runs better with less error on static 350 than with 350 as a start point and --avalon-auto option.

Not sure why yours are OK, but consider yourself lucky!
legendary
Activity: 892
Merit: 1002
1 BTC =1 BTC
August 07, 2013, 03:13:47 PM
Why gamble ? You're making loads of BTCBTCBTC buy some great psu's
legendary
Activity: 1484
Merit: 1026
In Cryptocoins I Trust
August 07, 2013, 03:05:55 PM
I've been running my 4 module version Avalons at 350mhz using the stock PSU. Is this bad?

I have had 7 Avalons at 350mhz running on the stock PSU for about a week. I did have to replace one PSU, but otherwise they seem to be running fine.

In my previous experience when a PSU goes bad, the whole machine just shuts off, after replacing the power supply everything is good to go and no extra harm was done.

Am I taking a large gamble of the PSUs failing and potentially harming the equipment?

I read in the Batch 3 thread that a four module Avalon @ 350mhz runs at 930 Watts at the wall. I think the Avalons only ship with 850w PSUs. So obviously what I'm doing is probably risky, I'm just wondering how risky??
legendary
Activity: 892
Merit: 1002
1 BTC =1 BTC
August 07, 2013, 02:49:23 PM
I was wondering too.

Did you get a reply from Yifu ?
kjj
legendary
Activity: 1302
Merit: 1026
August 07, 2013, 02:45:26 PM
I emailed Avalon, and they asked me to post here.

For me, this is the most interesting part of the story.  In fact, it is downright amazing.  Quite a few people have been, for at least a month, trying everything from tickets and email through smoke signals and spiritual mediums in efforts to contact Avalon.  As far as I can tell, none of us have heard back so much as a "fuck you" in reply.

Please, please let us know how you established actual contact.
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