[GUIDE] BitFury Miner Support/Tuning

[goxed]

Hey my Raspberry PI just burnt out.
I upgraded to a new v2.3 M-board and it burnt my raspberry Pi. Component D17, a black diode near the micro-usb port had white smoke coming out of it.
I desoldered the component, and the PI powers up, but looks like the IO pins are shot as no Miners are detected anymore. Plugged the PI into a v1 board with same results.

[klondike_bar]

Hey my Raspberry PI just burnt out.
I upgraded to a new v2.3 M-board and it burnt my raspberry Pi. Component D17, a black diode near the micro-usb port had white smoke coming out of it.
I desoldered the component, and the PI powers up, but looks like the IO pins are shot as no Miners are detected anymore. Plugged the PI into a v1 board with same results.

the v2 m-board has the RPi flipped upwards rather than downwards like the v1. did you rotate it 180 when changing boards?

[goxed]

Hey my Raspberry PI just burnt out.
I upgraded to a new v2.3 M-board and it burnt my raspberry Pi. Component D17, a black diode near the micro-usb port had white smoke coming out of it.
I desoldered the component, and the PI powers up, but looks like the IO pins are shot as no Miners are detected anymore. Plugged the PI into a v1 board with same results.

the v2 m-board has the RPi flipped upwards rather than downwards like the v1. did you rotate it 180 when changing boards?

Nope (HDMI port facing upwards), it was running fine for a few minutes, and then it stopped working and I realized the component D17 was very hot.

[dben428]

Add me to the mix on those seeing incompatibility mixing caps and capless. I've done no modding.

I just added three new cards to my original. With the original in the first slot, it slowly died and dropped to 0, and all the cards seemed to get pretty hot. I moved it to the last slot, and everything seems to be running good (about 3 hours stable now). Although the original card is slower, it was always around that speed, so I don't think it is being negatively affected by the capless cards.

[-Redacted-]

I played swap-cards-around around until I finally pinned things down to one specific capless card that will not work in conjunction with my older cards.  

After taking that card out of the lineup things started working well with the mix.  If I put that card in any position in my setup things start going bad shortly thereafter, cards go missing, hashrate drops to zero, all sorts of peculiar things start happening...

Cards 8 and 9 are the original two cards with caps (and a pencil mod.)  The rest are stock capless cards, just like they came out of the box.  The older cards seem to work best as the last cards in the bunch.

Bank 1
1: 28.962GH/s
2: 29.564GH/s
3: 32.04GH/s
4: 31.496GH/s

Bank 2
5: 30.938GH/s
6: 28.647GH/s
7: 33.801GH/s
8: 35.09GH/s

Bank 3
9: 36.178GH/s
10: 0GH/s
11: 0GH/s
12: 0GH/s

[juhakall]

I also had a couple occasions where hashrate plummeted and one card would disappear, after mixing 1 october and 2 august H-boards. That always required a total poweroff to fix. After getting 2 more october H-boards, this hasn't happened anymore and things have been stable for one week. Maybe it's because I changed the slot positions a little after getting those last H-boards. Or just pure luck, and it's going to crash today

[sveetsnelda]

I separated my cards with caps and my cards without caps.  They've been hashing for quite some time now without issues.

[juhakall]

Just to be clear, are there actually some october H-cards that still have the caps, or is everyone refering to august cards when they're talking about cards with caps?

[darkfriend77]

August production cards ... with caps ...
October production cards ... without caps ....

but ...

august delivery ... with caps ....
october delivery .... without & with caps .... I got 1 out of 14 that had caps

a lot of cards have a signature like A1 ... or B4 ... B2 ... A3  ... it looks like they where
already used in a miner slot before ... so probably october delivery ... is build up out
of miner breakups ...

I'm unsure ... if that is the truth ... it's just a assumption ...

[spiccioli]

Has anyone noticed that the version 1.2 h-boards with and without capacitors don't mix well?  

Same here,

my october kit is made up of 12 new boards and four old end of line boards, each EOL board is the last of each bus, so A4,B4,C4,D4.

Everything was working at around 460 GH/s out of the box, but yesterday I decided to do a little pencil mod to the EOLs boards... hell broke loose!

I got tons of miso errors both on new and EOL boards, in the end I had to remove board B4, which, for unknown reasons was causing miso errors on all the cards in bus B and, from time to time, even to the other buses.

I'm using a 1000W single rail PSU, so it should not be a power issue.

I'd also like to know what is the max amperage that the  m-board can deliver but overall these kits remain extremely picky and instable systems which can stop working even for very small changes.

Here is my system now, as you can see I still have miso errors here and there, but they don't seem to affect hashing too much. Boards 3,B and F are EOL boards with caps, slightly pencil-modded to 1.20-1.22 on RF02.

Code:

speed:13086 noncerate[GH/s]:471.315 (1.964/chip) hashrate[GH/s]:507.903 good:32921 errors:1737 spi-errors:2 miso-errors:4 jobs:290 (record[GH/s]:478.932)
0:      880     31.897  34.573  2228    127     0       0
1:      880     33.043  35.884  2308    104     1       0
2:      880     31.081  34.468  2171    127     0       2
3:      825     24.338  26.826  1700    77      0       0
4:      825     29.449  33.041  2057    150     1       0
5:      880     34.703  35.028  2424    90      0       0
6:      876     29.521  34.288  2062    243     0       2
8:      880     32.756  34.034  2288    53      0       0
9:      880     33.229  35.514  2321    112     0       0
A:      880     33.973  36.011  2373    27      0       0
B:      880     28.103  30.176  1963    93      0       0
C:      880     32.069  35.493  2240    243     0       0
D:      880     34.274  36.169  2394    40      0       0
E:      880     35.677  35.334  2492    82      0       0
F:      880     27.201  31.064  1900    169     0       0

spiccioli

[spiccioli]

August production cards ... with caps ...
October production cards ... without caps ....

but ...

august delivery ... with caps ....
october delivery .... without & with caps .... I got 1 out of 14 that had caps

a lot of cards have a signature like A1 ... or B4 ... B2 ... A3  ... it looks like they where
already used in a miner slot before ... so probably october delivery ... is build up out
of miner breakups ...

I'm unsure ... if that is the truth ... it's just a assumption ...

The biggest problem, it seems to me, is that these h-boards are produced with substandard quality, are noisy and picky, caps burned out so they were removed instead of being replaced with working ones, some chips cannot be seen if you don't disable one of them, errors spring out of nowhere in a working system and then disappear if you restart your system, h-boards connectors on m-board are too flaky.

I mean, august kits, ok, they were in a hurry, but on october kits, I'm disappointed by the fact that they still shipped EOL boards and that even new boards show all the problems of the old ones, so it means there was no improvement in hardware and software.

When you consider the 18K EUR price tag for the august kit and 9K EUR for the october one, this level of problems is barely acceptable.

spiccioli

[ricolein]

a lot of cards have a signature like A1 ... or B4 ... B2 ... A3  ... it looks like they where
already used in a miner slot before ... so probably october delivery ... is build up out
of miner breakups ...

Punin tested all boards in complete rigs for some time (i dont know how long). The notes at the H-Boards are a hint in which combination they are tested. You can use this notes as a suggestion to build up you rig. But its no warrany for optimal performance.

Ciao

Enrico

[klondike_bar]

so i spent some time rearranging my rig setup and got it up and running at 76.5GH (2 cards) before realising that i am pulling air through the tunnel, rather than pushing/blowing it. *facepalm*

Is this going to limit my cooling my any significant amount? It seems to handle very well at the moment, but im a little annoyed with myself for making the wrong assumption on airflow direction. Im even considering grabbing a second fan (230mm!) to double the airflow - would this be beneficial or simply cause turbulence?

[BenTuras]

I have V2 M-boards from Punin. I have been fiddling with board placement a lot and have noticed that the 4th bank is not very useful for me. I get the best result when I am running the 2 M-boards with an empty 4th bank(2+2+2 and 3+2+2 cards). The difference was over 30GH/s between using and not  using the 4th bank.

YMMV, but give it a try if you have boards in the 4th bank doing 15GH/s or less.

[goxed]

Hey my Raspberry PI just burnt out.
I upgraded to a new v2.3 M-board and it burnt my raspberry Pi. Component D17, a black diode near the micro-usb port had white smoke coming out of it.
I desoldered the component, and the PI powers up, but looks like the IO pins are shot as no Miners are detected anymore. Plugged the PI into a v1 board with same results.

the v2 m-board has the RPi flipped upwards rather than downwards like the v1. did you rotate it 180 when changing boards?

Nope (HDMI port facing upwards), it was running fine for a few minutes, and then it stopped working and I realized the component D17 was very hot.

Basically the component that blew out is this  (D17). It makes sense, I had just powered cycled the M-board, when this guy probably sensed transient voltage, and started destroying itself. After a few minutes magic white smoke.

http://www.littelfuse.com/products/tvs-diodes/surface-mount/smbj.aspx
Surface Mount TVS Diode
tvs diode
Web definitions

    A transient-voltage-suppression diode is an electronic component used to protect sensitive electronics from voltage spikes induced on connected wires. The device operates by shunting excess current when the induced voltage exceeds the avalanche breakdown potential.

[CryptoCluster]

What resistor should be used to get ~0.8V? Will 2.7K be ok for August boards? Did anyone solder new resistor on October ones?

I have pencil modded October boards down to 1.700 and August to 1.100. With heatsinks (on back of regulator only) and 120CFM Delta fans. But every day some boards freak out as resistance drops due to the heat. So I have decided to change resistors, but I am not sure witch one to choose.

[GandalfG]

What resistor should be used to get ~0.8V? Will 2.7K be ok for August boards? Did anyone solder new resistor on October ones?

I have pencil modded October boards down to 1.700 and August to 1.100. With heatsinks (on back of regulator only) and 120CFM Delta fans. But every day some boards freak out as resistance drops due to the heat. So I have decided to change resistors, but I am not sure witch one to choose.

If You want change resistor, desolder RF01. On October boards Punin installed 2k2 instead 1k5. I try 2k7 and 3k3.  For me 2k7 work better.

RF02 in all version H-Boards have 10k.

[pbigmoon]

If i move the h-cards around do i have to copy /run/shm/.stat.log to /opt/bitfury/best.conf as i have auto tune turned off in 2 of them but auto tune turned on the 5 other cards

They all still seem to be hashing fine but i don't wanna break anything.

[tom99]

WARNING: Newer V1 Hboard need fan or heatsink  to cool down and resistor is like 2.1k.  I did not know resistor value had change that why hboard get very very hot and can killed hboard.

[EvilLizardApparel]

I NEED AN IMAGE FOR THE SD-CARD FOR V1 MBOARD FROM AUGUST.

Every link on the forums says "account has been disabled due to high traffic". This applies to all "drop box" links. I NEED AN IMAGE FOR V1 MBOARD SDCARD, BOTH MINE DIED.


Please and thank you...