Topic: [GUIDE] BitFury Miner Support/Tuning - page 29. (Read 148049 times)

Can anyone assist me with figuring out what traces to cut for bypassing #25? U4B chip I assume.

1       AIfDSo  55      1.990   2.040   139     6       0       0       193     [0:0]   0       7 9 9 9 9 9 9 8 7 9 10 9 9 9 9 8        2 0 0 $
2       AIfDSo  55      1.704   1.955   119     17      0       0       185     [0:1]   0       7 7 8 8 8 5 8 5 6 7 9 9 9 8 8 7         1 1 0 $
3       AIfDSo  55      1.718   1.966   120     4       0       0       186     [0:2]   0       8 8 8 8 8 8 8 7 7 7 7 7 5 8 8 8         0 0 0 $
4       AIfDSo  55      1.890   1.977   132     4       0       0       187     [0:3]   0       7 7 8 8 8 9 9 9 9 9 9 9 9 8 8 6         1 1 0 $
5       AIfDSo  55      1.875   1.934   131     7       0       0       183     [0:4]   0       9 9 8 9 9 9 9 9 9 6 7 7 7 7 8 9         0 0 1 $
6       AIfDSo  55      2.076   1.977   145     2       0       0       187     [0:5]   0       10 9 9 9 9 9 9 9 9 9 8 9 9 9 10 9       0 0 0 $
7       AIfDSo  55      2.047   2.008   143     8       0       0       190     [0:6]   0       7 8 9 9 9 9 10 9 9 10 9 9 9 9 9 9       2 1 0 $
8       AIfDSo  55      1.646   1.955   115     6       0       0       185     [0:7]   36      7 7 7 6 6 7 7 8 8 8 6 8 8 7 7 8         0 0 0 $
9       AIfDSo  55      1.947   2.114   136     15      0       0       200     [0:8]   0       9 8 10 10 9 9 9 9 9 8 8 8 8 6 7 9       0 1 0 $
10      AIfDSo  55      1.990   2.061   139     5       0       0       195     [0:9]   0       8 9 9 9 8 9 9 9 8 8 9 9 9 9 9 8         1 0 0 $
11      AIfDSo  55      1.747   2.029   122     8       0       0       192     [0:A]   0       8 8 7 7 7 8 8 7 8 7 9 9 8 6 7 8         0 0 1 $
12      AIfDSo  55      1.790   1.945   125     13      0       0       184     [0:B]   0       8 8 9 7 8 8 9 8 9 8 9 8 7 7 6 6         0 0 0 $
13      AIfDSo  55      1.976   1.955   138     9       0       0       185     [0:C]   0       7 9 8 9 9 8 8 9 9 8 10 10 9 8 9 8       2 0 1 $
14      AIfDSo  55      2.019   2.019   141     2       0       0       191     [0:D]   0       9 9 9 9 9 9 9 9 9 9 8 9 8 8 9 9         0 0 0 $
15      AIfDSo  55      1.918   2.029   134     5       0       0       192     [0:E]   0       8 9 8 9 9 8 8 8 8 8 8 9 8 9 8 9         1 0 1 $
16      AIfDSo  55      1.976   2.029   138     6       0       0       192     [0:F]   0       9 9 9 9 8 8 9 9 8 9 9 9 8 8 8 9         0 0 0 $
17      AIfDSo  55      2.219   2.146   155     4       0       0       203     [1:0]   0       10 10 9 9 10 10 10 10 10 10 9 10 10 10 8 10   $
18      AIfDSo  55      2.319   2.315   162     8       0       0       219     [1:1]   0       11 10 10 11 10 10 10 9 9 9 11 10 11 10 10 11  $
19      AIfDSo  55      1.704   2.082   119     12      0       0       197     [1:2]   0       9 9 7 8 8 8 6 6 7 7 8 8 8 6 7 7         0 0 1 $
20      AIfDSo  55      2.205   2.124   154     5       0       0       201     [1:3]   0       9 8 10 10 10 10 10 9 9 9 10 10 10 10 10 10    $
21      AIfDSo  55      2.477   2.188   173     5       0       0       207     [1:4]   36      11 10 11 11 11 11 11 11 10 12 12 11 11 10 11 9$
22      AIfDSo  55      1.833   1.860   128     15      0       0       176     [1:5]   1       9 8 9 8 7 9 8 8 7 9 9 8 7 7 9 6         0 1 0 $
23      AIfDSo  55      1.833   2.135   128     11      0       0       202     [1:6]   36      9 8 8 9 9 9 8 8 8 9 6 8 7 7 7 8         0 1 1 $
24      AIfDSo  55      1.890   2.135   132     7       0       0       202     [1:7]   0       8 9 9 9 9 8 7 9 8 8 7 8 8 8 8 9         1 0 0 $
25      Aifdso  55      0.000   0.000   0       0       0       0       0       [1:8]   756     0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0         0 0 0 $
speed:1320 noncerate[GH/s]:46.787 (1.871/chip) hashrate[GH/s]:48.980 good:3268 errors:184 spi-err:0 miso-err:0 jobs:376 cores:95% good:24 bad:$
0:      880     30.308  31.994  2117    117     0       0       16      0       0       (1.894/chip)    100%
1:      440     16.478  16.985  1151    67      0       0       8       0       1   

It's nice of the chips to sacrifice themselves to protect the fuse like that....  

A little power-grinder work, and you're back in business in no time, eh?  I personally would spend the time to cut traces, but I guess if you are in a really big hurry and all, like some folks around here, the grinder might be faster....

When you reverse a board in the M-BOARD connector, it doesn't swap GND with 12V wires, but it swaps the GND/12V with the 1.8V SPI section on the other side, and it puts the 12V straight into the chips. Especially the first and last chip in the chain will get the full effect, and are the most likely to fry.  The power regulator may still be okay. The fuse is probably still good too.

Here. Resistor at 1.1KOhms, along with heatsinks for each hashing chip

just tweaked mine today.

BEFORE: 1.130K at cold state = 0.788 V    ------> unknown hot state resistance = 0.808 V     ---> 39.5GH average
NOW:     1.100K at cold state = 0.815 V   ------> unknown hot state resistance = 0.834 V     ----> 42.0GH average (based on 2.5hours)

I am using small chip-sized heatsink on 14/16 chips (i need more lol - and its been suggested that backside cooling may be optimal) and have 5 1"x1" heatsinks on the back, centered over the 4 capacitor clusters and in the center of the board. a 120mm fan is aimed at the back and the front is cooled by a 60mm and an 80mm fan on opposite sides

I don't intend to push further until I know that:
a) the chips can handle a certain amount of heat (if they can handle 70% of what asicminer does, then ive got a lot of headroom)
b) what the 30A converter can handle and its failure mode(s) (intron suggested that they simply switch off at overvolt/overheat)

The heat issue seems minimal so long as the chips can handle some warth and voltage. The issue lies in the 30A limit. If my 'math' is right, the chips use around 0.8-0.9w/GH at 2.65GH/s * 16 chips * 0.835 V = 28.3-31.8 A. The other components may draw additional power on top of this...?

Guys, I want to know who has the highest clock rates.   Does anyone have over 40GH/s per card or close to it?

 I was able to get about 43GH/s for 1 card.  Most cards run ~35-36GH/s though.  one runs 31 GH/s

Please post your epic results and if you have 35+ please post your resistor settings, if you used heatsinks and what other cooling you have.

Thanks intron. 

An ohm meter shows the fuze is still closed.  I tried plugging the h-board into a different rig and it works, so my problem is in the m-board side.

/cet

2920L300/15DR (Littlefuse)

intron

This might be the fuse you are looking for.  I'd confirm the dimensions.

http://www.sealand-pptc.com/pro/1n4ipk20101019141253.pdf

edit - not sure what voltage you would need.  Its also a resettable fuse so check resistance with a multimeter.  If it has returned to a conducting state and the board still isn't working then something else has fried.

So I went and compiled latest code from git, bitfury branch; there is a bitfury_dynclock branch which I did not test because it was a little bit older than bitfury's one.

I had to install all missing dependencies but I got it running.

Here, if you trust me, the executable

https://mega.co.nz/#!jMZnmAAK!RpwUtWO8MfXjStxyOVZmohZpKcN1zLDkq7CcujEf5wQ

MD5: 21bb61a0cc71efe973370886dac5e557

This is an ephemeral link, so I don't know how long it will last.

Hash wise, chainminer is a lot better, I had 115-130 GH reported by bfgminer after 5 minutes of hashing instead of 180-188 nonce rate from chainminer.

It has to be run as root and with -S auto otherwise it does not find H-boards.



So I decided to try to use it as a proxy, instead of slush's provided one which does not work with p2pool, but it does not work.

Chainminer connects to it on port 8332 but all submitted shares are counted as hardware errors by bfgminer which does not submit any share to the stratum pool. I've tested it with p2pool and HHTT, same result.

To sum it all: it is a very early beta and has a long way to go before reaching chainminer speed and fine-tuning abilities (there is no way yet, or I was not able to find it, to set single chip speed, for example).

Maybe it could be easier to just add stratum support to chainminer...

spiccioli.

so is there a part number for the fuse?  of just wire around it?

The chip F01I is a fuse, if you insert card opposite way the fuse is dead for sure, and if you are lucky that can be the only problem with that card.

Cheers,

I pulled the classic 'insert the h-board the wrong way' blunder today and the h-board isn't working now. 

Does this look like the problem?



the chip at F01I has some pitting on the edges.  Is this something I can replace?

/cet

Hello i am new here ... But i am watching this thread from the start ... 

does anybody have schematic file for the V2 M-board

i just need the rpi connector connections. i am downloading BFSB_GM2.IMG is that image with v2 chainminer ?

here are some pics of my miner 

Hmm how to attach pics ? 

Cheers,

Try --enable-bitfury --enable-bfsb --disable-bigpic --disable-littlefury

EDIT:

Or better still:

CFLAGS="-O2 -Wall -march=armv6 -mfloat-abi=hard -mfpu=vfp" ./configure --enable-bitfury -disable-avalon --disable-opencl --disable-bitforce --enable-icarus --disable-modminer --disable-x6500 --disable-ztex --disable-littlefury --disable-bigpic --enable-bfsb

I have exactly 0.80 V on both.

I'd like to know what driver exactly should be used with this branch. Looks like the bitfury & bfsb compile options would be the way to go, but ./configure --help states the following:
Note the 'default disabled'. I tried --enable-bfsb, but there was still no mention of BFSB support in the configure results.

I'm just being extra careful, wouldn't want to fry my boards by running a wrong driver. On that note, is there any harm in having the littlefury/metabank drivers compiled in, too?

Depends on your Overclocking wishes ... those cases probably offer not enough to cool the boards ... when your going for the 30+ GH per board ...

im getting already 50° on the boards with this setup ... 3 fans front 3 fans back ... and heatsink

Hi guys, I need your knowledge:

Will this work or rather fry my mining gear? I plan 2 x full kits per case (old intel Server case).



The fans are Delta FFB0812EHE DC12V 1.35A. Should I give them their own, separate power supply, or can I run through the m-boards?
 
http://www.sidewindercomputers.com/del80ffb08123.html

Looks to have been pulled into :-
https://github.com/luke-jr/bfgminer/tree/bitfury