[ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING***

[mb300sd]

Okay I want to brainstorm my ideas a little bit.
Here's what I am going to do. I am thinking of decoupling the voltage regulator from the PCB since it causes so much overheating issues. It will reduce board BOM and hopefully faster turnaround by PCB manufacturer.

I am planning to use multiples of this regulator since the output can be paralleled (~$55 e.a.)

http://www.intersil.com/en/tools/reference-designs/isl8225meval3z.html


a) Order chips ($25 ea on megabigpower.com)
b) Order decoupling capacitors for ASICs
c) Get PCB made and assembled by the PCB company (only solder ASIC + decoupling caps. No need to solder voltage regulator section)
d) Order Voltage regulators
e) Test assembled cards
f) Mine
g) If successful, sell to interested parties

You'll have no margins for profit if chips are $25 ea.  That's $400 for the ASICs alone.

And I think it's generally expected when MGP and BFSB started selling H boards again they're going to have to price them at less than $300 per board or they'll generate very little interest.

Lets say I do it without any profit margins, just for the community at first.

BTW can I use this to hand solder the ASICs without much problems? http://www.cmlsupply.com/model-850-esd-safe-hot-air-rework-station.html?gclid=COTelKSe3roCFa1AMgod8VMAaw

Looks pretty similar to the one I have, I use it regularly to solder 0402s

So do you think it will be fine for soldering the Bitfury chips? Thanks

Yeah, should be fine. Although you might want to get a stencil for at least a QFN if not the whole board. http://oshstencils.com are really cheap.

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[Doff]

Ah ha!  Now I know why random cards have dropped out.  It's always happened when I've moved a fan or slightly adjusted the position of the M board, etc.

Yeah.  I couldn't figure out why my rig did worse in the garage with a loud box fan blasting on it with near-freezing air temperatures (as opposed to inside the house with a less obnoxious fan setting).  I finally narrowed it down to the boards wiggling around slightly.  Sometimes I could get them in the right position and they'd run for hours and then randomly crap out.  Here was my fix (just cut slits with a miter saw):




Look ma, no heatsinks:

speed:13670 noncerate[GH/s]:620.895 (2.425/chip) hashrate[GH/s]:629.412 good:43369 errors:455 spi-err:10 miso-err:0 duplicates:0 jobs:291 cores:78% good:254 bad:0 off:2 (best[GH/s]:626.034) Sun Nov 10 08:36:21 2013

Code:

board-2 speed   nrate   hrate   good    errors  spi-err miso-er duplic  good    bad     off     per chip        good cores
0:      863     38.426  39.309  2684    88      2       0       0       16      0       0       (2.402/chip)    77%
1:      862     39.399  39.456  2752    9       0       0       0       16      0       0       (2.462/chip)    80%
2:      809     34.388  36.444  2402    67      0       0       0       15      0       1       (2.149/chip)    71%
3:      863     38.898  39.752  2717    12      1       0       0       16      0       0       (2.431/chip)    80%
4:      859     39.313  39.900  2746    14      1       0       0       16      0       0       (2.457/chip)    79%
5:      863     41.905  40.482  2927    22      2       0       0       16      0       0       (2.619/chip)    81%
6:      861     38.640  40.831  2699    15      0       0       0       16      0       0       (2.415/chip)    80%
7:      862     40.487  39.932  2828    5       0       0       0       16      0       0       (2.530/chip)    80%
8:      863     39.786  39.425  2779    19      0       0       0       16      0       0       (2.487/chip)    79%
9:      859     40.659  39.805  2840    9       1       0       0       16      0       0       (2.541/chip)    80%
A:      863     40.630  40.101  2838    8       0       0       0       16      0       0       (2.539/chip)    80%
B:      861     39.256  39.594  2742    7       0       0       0       16      0       0       (2.454/chip)    80%
C:      855     38.469  39.161  2687    22      1       0       0       16      0       0       (2.404/chip)    79%
D:      809     34.775  37.438  2429    132     0       0       0       15      0       1       (2.173/chip)    69%
E:      858     37.209  38.717  2599    9       0       0       0       16      0       0       (2.326/chip)    79%
F:      860     38.655  39.065  2700    17      2       0       0       16      0       0       (2.416/chip)    78%

Keep in mind that this was manually tuned and I have access to unlimited amounts of very cold air.

That's beautiful, what type of tuning did you do to get the ones over 40 like that?

I went ahead and made myself a stablizer to attempt the same thing. I think because I had the 120mm fans on top sitting in a way to keep them from doing the shaking was why I was getting stable numbers.

Also, what is the measurement of the spacing you used on your board there? I think I will build the same thing. I used to foam which is working well but Id like to make it better.

[goxed]

Ah ha!  Now I know why random cards have dropped out.  It's always happened when I've moved a fan or slightly adjusted the position of the M board, etc.

Yeah.  I couldn't figure out why my rig did worse in the garage with a loud box fan blasting on it with near-freezing air temperatures (as opposed to inside the house with a less obnoxious fan setting).  I finally narrowed it down to the boards wiggling around slightly.  Sometimes I could get them in the right position and they'd run for hours and then randomly crap out.  Here was my fix (just cut slits with a miter saw):




Look ma, no heatsinks:

speed:13670 noncerate[GH/s]:620.895 (2.425/chip) hashrate[GH/s]:629.412 good:43369 errors:455 spi-err:10 miso-err:0 duplicates:0 jobs:291 cores:78% good:254 bad:0 off:2 (best[GH/s]:626.034) Sun Nov 10 08:36:21 2013

Code:

board-2 speed   nrate   hrate   good    errors  spi-err miso-er duplic  good    bad     off     per chip        good cores
0:      863     38.426  39.309  2684    88      2       0       0       16      0       0       (2.402/chip)    77%
1:      862     39.399  39.456  2752    9       0       0       0       16      0       0       (2.462/chip)    80%
2:      809     34.388  36.444  2402    67      0       0       0       15      0       1       (2.149/chip)    71%
3:      863     38.898  39.752  2717    12      1       0       0       16      0       0       (2.431/chip)    80%
4:      859     39.313  39.900  2746    14      1       0       0       16      0       0       (2.457/chip)    79%
5:      863     41.905  40.482  2927    22      2       0       0       16      0       0       (2.619/chip)    81%
6:      861     38.640  40.831  2699    15      0       0       0       16      0       0       (2.415/chip)    80%
7:      862     40.487  39.932  2828    5       0       0       0       16      0       0       (2.530/chip)    80%
8:      863     39.786  39.425  2779    19      0       0       0       16      0       0       (2.487/chip)    79%
9:      859     40.659  39.805  2840    9       1       0       0       16      0       0       (2.541/chip)    80%
A:      863     40.630  40.101  2838    8       0       0       0       16      0       0       (2.539/chip)    80%
B:      861     39.256  39.594  2742    7       0       0       0       16      0       0       (2.454/chip)    80%
C:      855     38.469  39.161  2687    22      1       0       0       16      0       0       (2.404/chip)    79%
D:      809     34.775  37.438  2429    132     0       0       0       15      0       1       (2.173/chip)    69%
E:      858     37.209  38.717  2599    9       0       0       0       16      0       0       (2.326/chip)    79%
F:      860     38.655  39.065  2700    17      2       0       0       16      0       0       (2.416/chip)    78%

Keep in mind that this was manually tuned and I have access to unlimited amounts of very cold air.

Awesome man, cannot beat the cfm of a box fan. Just installed one for my setup.

[AMD FTW]

Whoever helps me to get this up and running will get a .25 BTC reward

https://bitcointalk.org/index.php?topic=331395.msg3555132#msg3555132

[Doff]

I am pretty sure you are missing make install.

it should be

sudo make

Sudo make install

[frankenmint]

Good job to the dumbass misguided helper who chose the smaller than atomic particle Potentiometers (something just a little bit bigger that wouldve been easier to catch with a screwdriver would have made all the difference to me) that are too small for anything.  Smallest screwdriver I could find in frys barely seems to catch them most of the time.  Extremely frustrating when trying to undervolt the cards for the sake of keeping them on. 

 No kidding Having a helluva time with the smallest screwdriver I could find from Fry's...

 Not even sure if I'm getting any movement.

Get yourself a phone repair kit, the ones that came with my replacement screen fit perfectly.

Or an eyeglass repair kit.

I had an eyeglass repair kit and it was too big!  Hence the trip to Frys.

[cypherdoc]

reading the last few pages makes me feel not so bad.

[Xian01]

reading the last few pages makes me feel not so bad.

 I'm happy for you, HashFast shill.

[cypherdoc]

reading the last few pages makes me feel not so bad.

 I'm happy for you, HashFast shill.

no, more from the standpoint that i have been having alot of trouble with my BF's as well.

[mb300sd]

Spent about 12 hours tinkering with it, but I think I finally got mine working... no clue whats gonna happen tomorrow when it warms up tho.

[fred0]

I am finding this whole experience with bitfury very annoying. 

Glad to see that I am not alone.

I have only seen the H-cards run for a few minutes before the overheating starts.

I don't want to waste time with adding heatsinks, or fine tuning voltage. I just want these to hash.

I really think that pushing the default config for the h-cards to the bleeding edge of performance was a bad idea.

[CoinHoarder]

Spent about 12 hours tinkering with it, but I think I finally got mine working... no clue whats gonna happen tomorrow when it warms up tho.

You are luckier than I, enjoy it sir.

After spending several hours trying random things suggested all over, I've still had no luck. One rig starts off good at about 450 Gh, but slowly goes down to 250-350 Gh. I have to hit start/stop every 5 minutes to keep it above 400 Gh. I am now switching out H cards in different slots to try and see if I can come up with a card configuration that will run more stable. I read putting bad cards in the last slot of every bank helps.

The other one can't even pull 0 Gh. I'm thinking it's possibly a bad M board, or something is wrong with the firmware. There are others with this problem.. so I'm glad knowing I'm not alone. It sucks having an $8,000 bitcoin mining rig and it can't even do 0.1 Gh. I'm gonna keep messing around with it, but at this point I'm at a loss as to what to do.

[mb300sd]

Spent about 12 hours tinkering with it, but I think I finally got mine working... no clue whats gonna happen tomorrow when it warms up tho.

You are luckier than I, enjoy it sir.

After spending several hours trying random things suggested all over, I've still had no luck. One rig starts off good at about 450 Gh, but slowly goes down to 250-350 Gh. I have to hit start/stop every 5 minutes to keep it above 400 Gh.

The other one can't even pull 0 Gh. I'm thinking it's possibly a bad M board, or something is wrong with the firmware. There are others with this problem.. so I'm glad knowing I'm not alone. It sucks having an $8,000 bitcoin mining rig and it can't even do 0.1 Gh. I'm gonna keep messing around with it, but at this point I'm at a loss as to what to do.

Mine did the exact same thing. Your chainminer is probably freezing on startup, i couldn't get it to do a single hash. SSH in and use bfgminer instead, you just won't be able to use the web interface.

[CoinHoarder]

Thanks for the heads up, I'll give it a try. 

[Xian01]

I'm done troubleshooting for the evening Shot a "Product Return" email to the MBP folks detailing the issues I've had this evening and hope to get a response about how to proceed.

- Received 32 H-Cards and 2 M-Boards.
- Identified 2 H-Cards as DOA
- M-Board that I thought was DOA I got hashing after further troubleshooting
- Consistent behavior with slots 2 and 3 across both M-Boards throttling down towards 0 (with slots 6 and 8 following shortly after)
- As per the Mining Support thread, I created a best.cnf with aIfDSo 53 set for all 256 entries -- No difference. Boards eventually throttle to 0 and never recover

Help

[Xian01]

After spending several hours trying random things suggested all over, I've still had no luck. One rig starts off good at about 450 Gh, but slowly goes down to 250-350 Gh. I have to hit start/stop every 5 minutes to keep it above 400 Gh. I am now switching out H cards in different slots to try and see if I can come up with a card configuration that will run more stable. I read putting bad cards in the last slot of every bank helps.

 Ditto here; seeing the exact same thing Have to keep restarting it every 5 minutes to maintain hash-rate. I tried swapping all sorts of combos of H-Cards in different slots with no discernible effect.

 I feel your pain, bro.

[frankenmint]

Guys....you need to use a tiny screwdriver and tune down the voltage a bit...also its looking like we need to keep the cards still so I will likely be taking my fans off the top of my cards too if I can.  From what others are saying... I think this will help guys...Would you have wanted the cards to be perfect....7 days from now?  Because it seems like there would be more waiting.  Not here to take MBP's side per say...but putting in one night of work and calling it Bad is sortof shortsighted...I waited at least a few days (contacted MBP for help, did tuning one by one, and I did apply heatsinks as I knew that if it had worked perfectly out the box I wouldve put in the same time to have it hashing high like 600+.  Just try more stuff and report failure after trying our suggestions before coming back on here upset.  

[Xian01]

but putting in one night of work and calling it Bad is sortof shortsighted...

 To be absolutely clear, I'm not calling anything bad. Just a bit surprised that we seem to collectively be having some trouble getting these v3 rigs humming along, stably.

 Eagerly awaiting updates and info on how to get our babies nice and happy.

[frankenmint]

but putting in one night of work and calling it Bad is sortof shortsighted...

 To be absolutely clear, I'm not calling anything bad. Just a bit surprised that we seem to collectively be having some trouble getting these v3 rigs humming along, stably.

 Eagerly awaiting updates and info on how to get our babies nice and happy.

I wont lie...I was really pissed off the 1st night I got it because it just kept shutting down...and I was under the presumption that my 700W psu wasnt enough because it kept powering off.  But after it was working and when i saw it reach 640 for a brief moment on this same psu and not shut down...it gave me that boost in morale to "keep calm and carry on" 

[allinvain]

Anyone here have any V1.2 h-cards they'd be willing to sell? (ie the ones that work with v2.3 m-boards NOT the new PCI connector style m-boards).