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Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 21/04/2014, 08:50:00 UTC
Hello

For everyone and especially for Lucko:

Have someone switched Lucko's made boards firmware to more efficient one as announced by MrTeal on
https://bitcointalk.org/index.php?topic=304250.msg6102864#msg6102864
What are results? Boards run stable at 1V and lower temperature?

Regards

I looked. And not sure if this will work. You can test but at the moment there is no point of doing that. Problems starts at 0,88 to 0,96V in most cases so I don't think this will work. It will work on some but those don't need slow rise firmware at all...

Hi Lucko

So the new "economy/life extending software" may not work with the boards requiring the "slow rise software"

But should be ok with boards that worked normally with the "standard software"

Is this a correct assumption?

Mudbankkeith

Hello
I tested last weekend: Only reliably works on board that won’t need slow rise software.
On others I got mixed results: My advice is that desserve a try it but don’t place high hopes on it.

Regards
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 16/04/2014, 12:58:07 UTC
Hello

For everyone and especially for Lucko:

Have someone switched Lucko's made boards firmware to more efficient one as announced by MrTeal on
https://bitcointalk.org/index.php?topic=304250.msg6102864#msg6102864
What are results? Boards run stable at 1V and lower temperature?

Regards
Post
Topic
Board Hardware
Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly
by
bx8389
on 18/03/2014, 09:44:43 UTC
Was it a single Windows Update or several? What was it an update for? If it was only one update, I'd probably try uninstalling that single update to see if that made things work again. As much as I don't like this option,  a System Restore to sometime last week might be worth trying too.

None of the above would explain why it won't work on multiple PCs but I'm using 2 Chilis on a Windows 7 x64 PC without any issues. One thing I'll say though is that I actually disabled auto-updates because I didn't want it restarting in the middle of the night and losing hashing time. I just check for and install them manually once a week or so but its a very bare bones PC with little more than mining software on it.

It was just one update - Dev is helping me too, Thank you so much Dev. I tried a system restore to last week, it didnt work sadly. I tried removing all the updates, I tried removing the driving currently on the miner, ive tried plugging the miner into another computer and even there it doesn't have the original normal information that it used to, that's what I don't understand. It acts normal but none of the normal information is there when you plug it in. When you try to program it with Chili flash on either computer, it doesn't show up on any USB port, so it won't let me reprogram it. Its frustrating because I know the computer notices it, it says "Downloading driver for new item plugged in" which always fails to download of course. then it just says unknown device and thats it. or "USB Composite device". It doesn't register as a ASIC Miner anymore.


If your room temperature is to high, then the power circuit may not be resetting.

If that is the case then try to get the chili temperature below 20c and try again.

I had a month ago a something similar issue, Tried first reinstalling FTDI drivers but solved replacing 4 port USB Hub connected to Chilli boards. But I use windows server 2008 so maybe is not same problem
 
Post
Topic
Board Hardware
Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly
by
bx8389
on 03/03/2014, 22:48:09 UTC
Well apparently there was a power outage over the weekend that I wasn't aware of. Perhaps that has something to do with the issues. Either way on a whim I shut everything down and plugged the second Chili back in and for the past 45 minutes now they've both been cruising. I do find it interesting that when I was just running 1 it ran about 3GH/s faster though. Will they dynamically adjust their speed in response to a power shortage? Or to put it another way - is it possible/likely that the Chilis have the ability to run at a slower speed if they sense they aren't getting enough juice to really push things?

It shouldn't be a heat issue - one is air cooled and the other is water cooled and they're positioned in such a way that they shouldn't be sharing any warm air.

My chili's at 38Gh draw 220watts
The bottom end units run at 33Gh draw 180watts

one with defective engines runs at 23Gh and 140watts.

If you are getting 39Gh then all your chips are good ones and running at top speed, (the power draw will be a lot higher than 220w)

The chili's will run anywhere between 23gh and 40gh depending on the power available. The voltage will regulate to meet this level.

Much below 23gh the power supply stays below its critical voltage and will crash.

4 chilis working stable ( even been Lucko's boards ) since an 1 month and half on Coolermaster b700 G750. no aditional load.
Only issue: power cables temperature is 55 ºC ( so somewhat hot.. ) at connectors. I think power will be near 150/180W but Haven't mesured yet consumption at power cord.

For me, chilis apears not sensible to small power fluctuations but hashing seem very sensible to room temperature.
Today total 143 GHS 131 GHs at pool 25,5 ºC room temperature. I have got in some cold days 145 GHs.
If room temperature is below 24,5 ºC i have a big trouble to maintain a stable setup
regards
Post
Topic
Board Project Development
Re: Haasonline Simple Trade Bot For BTCe and Bitstamp[Main topic]
by
bx8389
on 02/03/2014, 14:01:00 UTC
Today I discovered again a frozen bot with last update at feb 28 23:59:41 and no trades after: I think to be a "Best before 1 march 2014 syndrome" or another stability problem again.

If this is a plan to force people to switch to new bot i have to say: you win!! I will switch to another bot but not yours. Beg every month to have a working software is not tolerable after a substantial "donation" and any change/correction/upgrade on old STB

All the STB user who stayed at option 1 have gotten the fee upgrade. It listed in this topic for a few times now, its posted at the website and its even posted at the old website. But if you never read anything then you will not notice this.  


Yes I have read about a fee to upgrade. Thank you

Discovered later that is a "free" and not a fee upgrade: But will nice if software have a time limit get a warning in advance, About Reading: I assumed all information on this thread and web site is about "new" server software and not old one.
Regards
Post
Topic
Board Project Development
Re: Haasonline Simple Trade Bot For BTCe and Bitstamp[Main topic]
by
bx8389
on 01/03/2014, 20:53:21 UTC
Long time lurker, first post blah blah..

I also would like to echo what's being said.. Please stop adding things before the basics are fixed. However some sort of benchmarking tool is absolutely necessary, bots pretty useless without it. I understand your working on this but this 'autotune' feature again sounds overly complicated. I honestly wish you had stuck to the simple trading bot and just made that as rock solid as possible.

I appreciate your hard work on this but remember people are paying a lot of money for this bot and do expect a reasonable product.


I agree ( and most of people ) that this bot seems to have a high potential and have some nice features. But this bot have some reability problems and looking before i was unable to maintain it working more than 2-3 day without surprises. Last 2 days my STB was frozen in the middle of cryptocrisis without warning and gave a exception when try to operate it. Before i have the "best before 31 january 2014" problem good for yougurt but bad for software. Today won't start on bitstamp only btc-e. And so on.
I don't plan to expend more on STB upgrade not because i haven't got ROI (Market is bearish)  but mainly because if older STB have reability issues after months of development and fine tunning what is expected about and much more complex new piece software ?

Regards



Today I discovered again a frozen bot with last update at feb 28 23:59:41 and no trades after: I think to be a "Best before 1 march 2014 syndrome" or another stability problem again.

If this is a plan to force people to switch to new bot i have to say: you win!! I will switch to another bot but not yours. Beg every month to have a working software is not tolerable after a substantial "donation" and any change/correction/upgrade on old STB

Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 12/02/2014, 23:15:22 UTC
OK back... Well it is not that much problem only of power but internet working at that time on cell phone... It is hard to mine without that... ISP couldn't even give me a estimate at the moment when I will get internet back. So mobile network is overloaded...

Anyway I hope all this get fixed soon...

About the fix I got some PMs. It is replacing 4 capacitors and reprogramming VRM...

Hello Lucko

Have any news about for us ?  

Regards
I did it one and it works without a problem... I was planing to modify more yesterday or today. The problem is that I can't get from home to my workshop

https://www.dropbox.com/s/0m4deez46ecjqad/2014-02-12%2016.18.55.jpg

water in the distance is not a lake... All the snow and ice that fall over last days malted and there was also a lot of rain... Floods... I live at this location now for 3 years and we never had them till now... But we had 2 in last 2 mouths... We have 2 roads. One closed by all the trees the were broken by ice ran and one that was open officially 3 days ago(it was posible to drive on it 4 days before that but sometime you had to wait for firefighters to stop removing trees and clear the road) just to be closed back 2 days ago by water... I'm starting to fell like I'm in 3th world country... 60 hours without electricity and still not stable road close all the time unstable signal on mobile internet only on mobile...

Sorry I don't have any intention to put any kind of pressure at this moment, after all my chilli are running.
Was only curiosity and some concern if something bad happened to you due 5 days without news
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 12/02/2014, 10:12:43 UTC
OK back... Well it is not that much problem only of power but internet working at that time on cell phone... It is hard to mine without that... ISP couldn't even give me a estimate at the moment when I will get internet back. So mobile network is overloaded...

Anyway I hope all this get fixed soon...

About the fix I got some PMs. It is replacing 4 capacitors and reprogramming VRM...

Hello Lucko

Have any news about for us ?  

Regards
Post
Topic
Board Project Development
Re: Haasonline Simple Trade Bot For BTCe and Bitstamp[Main topic]
by
bx8389
on 12/02/2014, 10:02:56 UTC
Long time lurker, first post blah blah..

I also would like to echo what's being said.. Please stop adding things before the basics are fixed. However some sort of benchmarking tool is absolutely necessary, bots pretty useless without it. I understand your working on this but this 'autotune' feature again sounds overly complicated. I honestly wish you had stuck to the simple trading bot and just made that as rock solid as possible.

I appreciate your hard work on this but remember people are paying a lot of money for this bot and do expect a reasonable product.


I agree ( and most of people ) that this bot seems to have a high potential and have some nice features. But this bot have some reability problems and looking before i was unable to maintain it working more than 2-3 day without surprises. Last 2 days my STB was frozen in the middle of cryptocrisis without warning and gave a exception when try to operate it. Before i have the "best before 31 january 2014" problem good for yougurt but bad for software. Today won't start on bitstamp only btc-e. And so on.
I don't plan to expend more on STB upgrade not because i haven't got ROI (Market is bearish)  but mainly because if older STB have reability issues after months of development and fine tunning what is expected about and much more complex new piece software ?

Regards

Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 05/02/2014, 17:00:09 UTC
OK my road is open again Smiley

Home we are still with limited power only. Out of 3 phases only one is working from time to time... Not sure how much you know about electricity but generally that means that I only have power in every 3 device or power socket... Also only 2 lights in house are working... But luckily central heating is working again Smiley So I'm totally fine with things as they are...

In the time I was cut from the world MrTeal did send me posible fix to a problem. Will do my best to test it ASAP... Let just hope that today's weather predictions are wrong and I won't end up cut away from the world again. More ice rain and now also some wind...

Grate out of power again...

Hi Lucko........
When this finally gets to you..........
(UK) We have winds, flooding and fallen trees, but not much snow .... yet...... and the power has stayed on where I live.
 The cables for the street lights gave up about 5 weeks ago, so its dark outside.
https://www.dropbox.com/s/ytykkpbhykvmg4i/2013-12-05%2012.59.11.jpg

Thanks for update Lucko, We understand how is difficult to test these boards without a reliable power source...

** off topic
Here we have also some trouble with weather, wind and sea related, but is small annoyance if compare to most of north Europe. But always someone is able to take advantage of situation:
http://au.sports.yahoo.com/news/article/-/21254678/plumber-surfs-biggest-wave-ever-in-nazare-portugal/


Post
Topic
Board Hardware
Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly
by
bx8389
on 29/01/2014, 09:37:45 UTC
I'm still trying to get my second Chili back up and reliable.  Right now, it stops talking to cgminer/bfgminer after 2-8 minutes and needs to be powered off/on and the miner restarted to resume mining.  Rinse and repeat.  I've posted the errors earlier (https://bitcointalk.org/index.php?topic=304250.msg4557778#msg4557778).  Anyone have any ideas/suggestions?

So far, I've tried: reflashing the the 1.1v-limited firmware, reflowing the FTDI chip, reseating a nearby small SMD capacitor that might have gotten dislodged, but so far still unstable.  Before I had the pin 5-6 shorting mishap (hit an adjacent pin at the same time during a reset, trashing my FTDI chip), it was pretty solid, though I did have to reset it about once a day.  Replaced the FTDI chip with a new one, programmed it (thanks Mr. Teal!), and was back hashing, but never stable or even usable.

Help?

Lucko's cointamination thread have a lot of info about problems and some solutions for chilli boards. I think desserve some attention: start here but look before and after
https://bitcointalk.org/index.php?topic=267649.msg4417461#msg4417461
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 28/01/2014, 22:32:37 UTC
I got my boards back from ChipGeek and got the first one assembled. It does a very slow ramp up on the volts but as soon as it hits 1.1v it crashes. After a bit it resets itself and does it all over again. It doesn't force cgminer to crash though. So forgive me but what "trick" should I be doing to keep it hashing?

I have 2 boards that need some "draft protection" over the power modules but still need additional underside cooling.

https://www.dropbox.com/s/a5t436j4y788r7p/2014-01-28%2021.46.42.jpg (any moving air over the modules and it crashes)

If its reaching 38Gh it will need the voltage limiting software

I have changed EVO 212 fan to heatsink side where you have the "box" to prevent aditional cooling on VRM components.
This helped to stability. Boards are now quite stable on 36-39Ghs range.
But still have an adicional fan blowing PCB underside

Regards
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 27/01/2014, 11:08:07 UTC
Lucko and Mr. Teal,
...

What now is really needed next is that after cooling down the preheating restarts again so if my boards are interrupted from work e.g. network outage, they yould not resets. In fact I've also a problem with bfgminer. After a reset the /dev inode will change so bfgminer did not found them any more. So it will not restart the mining by themself :-( So preventing the device from reset will be very helpfull.
...

And it would be nice to see which fw is installed by the version number?

Cheers...
I more or less told all his to MrTeal and hi is working on it(I hope). He will not open his fw so we need to wait for him. But now that I have someone else saying that his board has the same problem only at different temperature he will probably be more sure it is not just isolated case...

I confirm this issue. I solved it installing cgwatcher and configure it to restart bfgminner every 6 hours - If this ocours only loose this minning time. Now i have a quite stable setup even using 3 boards with pre heating firmware.

regards


Post
Topic
Board Hardware
Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly
by
bx8389
on 16/01/2014, 20:11:40 UTC
For the second one, try flashing it again with 1V1, it shouldn't go (much) above 1.1V though 1.11V wouldn't be unexpected. Does it go up to 1.15? You don't need to keep the bottom heatsinks warm during operation, the issues with the boards needing to be warmed up prior to startup with a hair dryer is exclusive to the boards made by Lucko. It shouldn't have an effect on your board.
Thanks, I was wondering about the hairdryer thing.  The problem board does get above 1.15v in cgminer sometimes - that seems to be the majority of the times it's crapping out (bfgminer doesn't show it getting that high when it craps out).  It also sometimes now does the 200+ GHs with practically all errors too, if that info helps.

The "hairdryer mod" is only good for boards that "stick" just under 1v it just gives the warm up a bit of a push.
The secondary cooling is mainly to move the air under the board.  Heat rises, so the spill off from the main cooling fan is enough to ventilate the top.

A thought has just struck me, Will the Lucko boards with a problem work better upside down!!!!!!!!!!!

Yes, is strange, but I use upside down config for my boards ...
Post
Topic
Board Project Development
Re: Haasonline Simple Trade Bot For BTCe and Bitstamp[Main topic]
by
bx8389
on 14/01/2014, 15:30:27 UTC
to all the people that have been complaining for the past few posts:

please read past posts (yeah theres 50 pages) read them all and you probably wont have anything to post about and will also have learned most of the things you need to know to make money

this bot is not a magic program that will make you money, it is a tool, just like a hammer in fact, if you hammer your thumb, it hurts, so you need to learn not to do that.
I lost half the money (250$) i put into the bot over the first couple weeks, and now i have made it all back and paid for the bot, so if youve learned anything from my mistakes its that trade with small amounts until you are SURE it will make a profit, and yes there are plenty of ways to make a profit. don't blame the bot for not turning a profit for you (i am sure there are some bugs that need fixing to but thats why theres a whole new release coming) , you just need to understand how to trade properly/how the bot works

my best advice would be
A) read this entire thread (at least skim over it)
B) read this https://bitcointalk.org/index.php?topic=60501.msg704788#msg704788 (yes the whole thing)


good lucks peeps!  Smiley

I agree with CADGuy and even if I am (I hope constructive) critic of this bot i stress it should be handled definitely as a tool. I share with community my big lesson learned using it during last month: things will go much better when I give up trying to teach all day trade tricks to bot and changed strategy taking advantage of bot running 24/24h. In other words: results go much better when stopped  consider bot on trades less as sprinter and more like a stayer ( ok… dumb stayer ).

regards
p.s. Probably after this Stephen may change program icon from hare to a turtle…
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 14/01/2014, 09:35:16 UTC
the 'hair dryer' solution is not acceptable.
I can confirm that. The method is acceptable so I will not lost all my money because there mining now, more or less.
I think all people agree that is not an ideal solution, is a way to minimize losses. I understand also this is tricky problem so find root causes can take some  time. After all, hundred other MrTeal ‘s boards work and seems only this batch have trouble.
I believe on MrTeal and Lucko professionalism and expect in next few days a clear explanation about board problem's root causes and viable solution if possible. But if not able to find the problem cause´s I expect ,at least, Mr Teal give board’s enough information for all affected  people search a solution by his own.

Regards
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 12/01/2014, 13:27:14 UTC
I have finally got these two bad girls  reasonably stable at asic temp of 68c and power module at 44c/45c

Note the evo 212 coolers are lifted 15mm up. This has reduced the cold airflow over the power modules.

after I used the "Hairdryer Mod" the boards would restart, but the temp. at the power modules would slowly fall.(eventually crashing again)

The cardboard cover is (hopefully) holding the temp. in the power modules and the cold air from the evo is deflected upwards.

The secondary fans are controlling the airflow under the boards, if I move them around then the temp. does change.


https://www.dropbox.com/s/y6dc59y5zzeaub5/IMG_20140110_105218.jpg


EDIT  still hashing after 3 hours

EDIT 2 crashed after 5 hours


Hello

I have also some crashs during last days from low voltage reset boards, at this moment ( not yet totally confirmed ) i suspect form internet connection: when it stops during few seconds (maybe or more than 30 seconds)  boards lower the hash and cool down enough to be unable to restart by its own. Normal boards aren't affected. Discovered this during a router restart.
I changed setup putting this board on not cooled area: hash will be lowered but expect more immunity from connection drop-outs

Regards

Edit: 4H+  running: I think 26º Ambient temperature helps too ...
Edit: Exceded 14H hashing:By far longest time without incidents with all received boards.
"the black sheep" - BFL 3: 55.0C | 35.14/35.20/31.91Gh/s | A: 4280 R:21+ 2(.49%) HW:26874/8.6%

Edit 3: 28H hashing without intervention: Decided maintain and use this setup ( one board without direct power converter cooling ). Total hashing at Pool now for 4 Lucko's chilli boards: 131 GHs
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 10/01/2014, 10:54:25 UTC


I confirm that, yesterday and today I got finally all my sent boards working at some point with hairdryer trick: need some effort to start hashing but now I have a method to overcome reset problems until final solution is found. Many thank asjfdlksfd to share this with us.

My last mission now is investigates one board stop hashing after some hours: but for me is a minor annoyance...

Lucko/MrTeal: If board pre heating seems so reliable to solve this reset is possible simulate this behavior on firmware?
I wonder if after all everything is OK with board and main reason of problems are only some of Lucko's BFL chip batch are slightly out of specs. This happened on cointado board so is not completilly out of question.

My last restart ( even knowing 1 board will became "sick" during this night i am happy for first time
 since entered on this project ) Grin Grin Grin:

bfgminer version 3.9.0 - Started: [2014-01-09 21:43:00] - [  0 days 00:22:39]
[M]anage devices [P]ool management Settings [D]isplay options  [H]elp [Q]uit
Connected to eu-stratum-*****.btcguild.com diff 64 with stratum as user ****
Block: ...4e2576ff #279578  Diff:1.42G (10.15Ph/s)  Started: [22:05:30]
ST:14  F:0  NB:7  AS:1  BW:[ 65/ 55 B/s]  E:511.17  I: 1.92mBTC/hr  BS:293k
4      69.0C | 146.9/135.5/128.1Gh/s | A:641 R:2+6(.34%) HW:2911/6.2%
-------------------------------------------------------------------------------
BFL 0: 69.0C | 35.61/29.63/28.57Gh/s | A:128 R:0+0(none) HW: 681/4.6%
BFL 1: 69.0C | 36.24/34.98/33.74Gh/s | A:175 R:2+0(1.1%) HW: 443/3.9%
BFL 2: 60.0C | 36.94/35.67/33.86Gh/s | A:170 R:0+0(none) HW: 611/5.4%
BFL 3: 69.0C | 34.78/35.25/31.94Gh/s | A:169 R:0+6(.11%) HW:1179/ 10%
-------------------------------------------------------------------------------
[2014-01-09 22:05:25] Accepted 018093b1 BFL 1  pool 0 Diff 170/64
[2014-01-09 22:05:25] Accepted 02310d9c BFL 0  pool 0 Diff 116/64
[2014-01-09 22:05:26] Accepted 0026ec8f BFL 0  pool 0 Diff 1.68k/64
[2014-01-09 22:05:26] Accepted 039f0d4f BFL 3  pool 0 Diff 70/64
[2014-01-09 22:05:27] Accepted 0187d6f1 BFL 0  pool 0 Diff 167/64


Hi bx8389
possibly your BFL2 needs some extra cooling at the power side  60c is a bit low, 70c seems nice for the asics.  Try cooling the back of the board. below the power modules.

hello,
yes you have reason, I have adicional cooling for boards but at "shoot" time this board was separate from others to take measurements and not yet cooled: this is the one needing hairdryer to start...
Thanks for warning
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 10/01/2014, 09:33:06 UTC
I'm messing around with the firmware on one of my (known good) boards. The quick hack I'm doing now just runs the self-test on startup for a couple minutes. If there is an issue with the PCB where there is interference at low temperatures, it might be difficult to correct with firmware. My board has a heatsink on the bottom side, but what I’m seeing is the board doesn’t actually get that hot in the self test at 0.85V. I’m finding it’s only drawing 51A and getting to about 25C in a 21C room. If I raise the voltage to 1V I get 85A draw and it stabilizes at 32C or so, which still isn’t really that warm. It’s not until I get up to 1.1V or so that I start pulling ~120A and the temperatures get up to 50C or so.
Basically, I think people are likely getting the boards a lot hotter with a hair dryer than I will be able to by running the board, if I have to run it at less than 1V to keep it stable. I'll give it a shot on my bad board tomorrow.

Ok Understood the issue, thank you
Post
Topic
Board Hardware
Re: BFL board project COINTAMINATION - EU facility - ORDERS OPENED for Chili
by
bx8389
on 09/01/2014, 22:15:52 UTC
The hairdryer trick works wonders, for the low power crash.

as soon as the board completes initialization and starts to count, I switched the hairdryer from cold blow, to hot blow.  Tongue
 The fets temp. went up to 46c and NO CRASH  Smiley

Now its hashing the fets temp is steady 43c to 44c  Cool

I just need to test out how this will work with 8 Chili on a rPi and hope it stays stable.  Roll Eyes


My thanks to the brave man who tried it the first time with a soldering blower.

I confirm that, yesterday and today I got finally all my sent boards working at some point with hairdryer trick: need some effort to start hashing but now I have a method to overcome reset problems until final solution is found. Many thank asjfdlksfd to share this with us.

My last mission now is investigates one board stop hashing after some hours: but for me is a minor annoyance...

Lucko/MrTeal: If board pre heating seems so reliable to solve this reset is possible simulate this behavior on firmware?
I wonder if after all everything is OK with board and main reason of problems are only some of Lucko's BFL chip batch are slightly out of specs. This happened on cointado board so is not completilly out of question.

My last restart ( even knowing 1 board will became "sick" during this night i am happy for first time
 since entered on this project ) Grin Grin Grin:

bfgminer version 3.9.0 - Started: [2014-01-09 21:43:00] - [  0 days 00:22:39]
[M]anage devices [P]ool management Settings [D]isplay options  [H]elp [Q]uit
Connected to eu-stratum-*****.btcguild.com diff 64 with stratum as user ****
Block: ...4e2576ff #279578  Diff:1.42G (10.15Ph/s)  Started: [22:05:30]
ST:14  F:0  NB:7  AS:1  BW:[ 65/ 55 B/s]  E:511.17  I: 1.92mBTC/hr  BS:293k
4      69.0C | 146.9/135.5/128.1Gh/s | A:641 R:2+6(.34%) HW:2911/6.2%
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BFL 0: 69.0C | 35.61/29.63/28.57Gh/s | A:128 R:0+0(none) HW: 681/4.6%
BFL 1: 69.0C | 36.24/34.98/33.74Gh/s | A:175 R:2+0(1.1%) HW: 443/3.9%
BFL 2: 60.0C | 36.94/35.67/33.86Gh/s | A:170 R:0+0(none) HW: 611/5.4%
BFL 3: 69.0C | 34.78/35.25/31.94Gh/s | A:169 R:0+6(.11%) HW:1179/ 10%
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[2014-01-09 22:05:25] Accepted 018093b1 BFL 1  pool 0 Diff 170/64
[2014-01-09 22:05:25] Accepted 02310d9c BFL 0  pool 0 Diff 116/64
[2014-01-09 22:05:26] Accepted 0026ec8f BFL 0  pool 0 Diff 1.68k/64
[2014-01-09 22:05:26] Accepted 039f0d4f BFL 3  pool 0 Diff 70/64
[2014-01-09 22:05:27] Accepted 0187d6f1 BFL 0  pool 0 Diff 167/64