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Topic: [GUIDE] BitFury Miner Support/Tuning - page 25. (Read 148077 times)

member
Activity: 85
Merit: 10
October 20, 2013, 05:27:58 AM
Hi,

two days ago i got my rig, and it works fine (after solving zero-byte-bug). Today in the morning i see three cards are not working, down to 0GHash. I swaped them to other slots. Two start mining, but slow with 10Ghash and one is still dead. Even in other slots. It just produces errors and think it have just 9(!) chips, not 16:
Code:
113	AIfDSo	54	0.000	0.042	0	2748	0	0	4	[7:0]	756	0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 	77 29 0 0 0 156 260 263 263 263 263 263 263 263 262 123 
114 AIfDSo 54 0.000 0.032 0 306 0 0 3 [7:1] 756 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 18 51 4 28 59 11 28 8 26 70 1
115 AIfDSo 54 0.000 0.032 0 1535 0 0 3 [7:2] 756 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 28 59 127 234 206 175 109 0 28 59 99 175 136 32 68 0
116 AIfDSo 54 0.000 0.053 0 1592 0 0 5 [7:3] 756 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 164 228 228 226 65 0 162 226 65 162 66 0
117 AIfDSo 54 0.000 0.032 0 1087 0 4 3 [7:4] 756 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 81 137 0 0 81 216 217 137 0 81 137 0
118 AIfDSo 54 0.000 0.032 0 1115 0 0 3 [7:5] 756 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 56 253 253 0 0 0 253 252 0 0 0 48 0 0 0
119 AIfDSo 54 0.000 0.032 0 1683 0 0 3 [7:6] 756 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 58 0 0 0 216 280 68 0 0 216 279 279 67 1 215 4
120 AIfDSo 54 0.000 0.000 0 0 0 2 0 [7:7] 756 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
121 AIfDSo 54 0.000 1.120 0 2706 12 3 106 [7:8] 756 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 224 324 324 312 106 4 14 280 291 224 147 112 110 116 104
122 AIfDSo 54 0.644 2.008 45 55 0 0 190 [8:0]    <= here starts next board

Any ideas i can do to bring at least the other two boards back to full life? At the moment i hope for self-healing-effects and let it run.

Ciao

Rico
sr. member
Activity: 259
Merit: 250
Dig your freedom
October 19, 2013, 01:05:28 PM
Guys, looking for someone with a version 1 M board and successfully running 4 or more H cards

I have 4 cards, without problems most of the time. More are arriving later today.

wow, I have two stubborn version 1 M boards, that just wont hash properly with more than 3 H cards.

 What is your hashrate with 4 cards? Are you using the chainminer that came with the board? Any special settings? Thanks in advance.

138.5 GH total, but 3 chips are dead (2 bypassed and 1 at the end of the chain). I overvolted them to an average of 0.78v. I'm using the stock software. Autotune is off, and some chips are set to 54 and some to 55, based on manual testing.

That's cool. I get 115GH/s with 3 H-boards. The moment I add the fourth it falls to 84GH/s. Using stock software, tried  both Autotune on and off. I guess I will have to dig deeper. Hashrate starts off good after power on and falls down within a minute or so.   Thanks for your help though Smiley
I have identical problem.
3  card  work without problem. When add fourth falls to 12Gh/s
Where I can define how many card I have ?
sr. member
Activity: 434
Merit: 265
October 18, 2013, 04:49:21 PM
Added:

...
4. How to fix an empty miner File?
...
4. How to fix an empty miner File?

I've heard of three people in the last 24 hours who received their miners with an empty file in place of the miner program. This will obviously prevent the miner from working, but fortunately it's easy to check & fix:

An empty miner file looks like this:
Code:
ls -la  /opt/bitfury/chainminer/miner
-rwxr-xr-x 1 pi pi 0 Oct  2 10:05 /opt/bitfury/chainminer/miner

If your miner doesn't work and you can see an empty file like above, just run this and wait for the compilation process (~5 minutes):
Code:
cd /opt/bitfury/chainminer && sudo make clean && sudo make

...
sr. member
Activity: 658
Merit: 250
October 18, 2013, 03:20:08 PM
I've heard of three people in the last 24 hours who received their miners with an empty file in place of the miner program. This will obviously prevent the miner from working, but fortunately it's easy to check & fix:

An empty miner file looks like this:
Code:
ls -la  /opt/bitfury/chainminer/miner
-rwxr-xr-x 1 pi pi 0 Oct  2 10:05 /opt/bitfury/chainminer/miner

If your miner doesn't work and you can see an empty file like above, just run this and wait for the compilation process (~5 minutes):
Code:
cd /opt/bitfury/chainminer && sudo make clean && sudo make
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
October 18, 2013, 02:34:22 PM
Guys, looking for someone with a version 1 M board and successfully running 4 or more H cards

I have 4 cards, without problems most of the time. More are arriving later today.

wow, I have two stubborn version 1 M boards, that just wont hash properly with more than 3 H cards.

 What is your hashrate with 4 cards? Are you using the chainminer that came with the board? Any special settings? Thanks in advance.

138.5 GH total, but 3 chips are dead (2 bypassed and 1 at the end of the chain). I overvolted them to an average of 0.78v. I'm using the stock software. Autotune is off, and some chips are set to 54 and some to 55, based on manual testing.

drop the tuning to 53/54, ands increase the voltage to 0.805V. youll get a little bit faster speeds from increasing the voltage/tuning ratio rather than vice-versa
legendary
Activity: 1400
Merit: 1000
I owe my soul to the Bitcoin code...
October 18, 2013, 09:47:41 AM
I have 16 cards on a V1 M-board.  It runs reasonably well most of the time.  I would prefer to upgrade to a V2 so I can at least update chainminer and reduce errors but no love yet.  Sad
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
October 18, 2013, 07:10:06 AM
Guys, looking for someone with a version 1 M board and successfully running 4 or more H cards

I have 4 cards, without problems most of the time. More are arriving later today.

wow, I have two stubborn version 1 M boards, that just wont hash properly with more than 3 H cards.

 What is your hashrate with 4 cards? Are you using the chainminer that came with the board? Any special settings? Thanks in advance.

138.5 GH total, but 3 chips are dead (2 bypassed and 1 at the end of the chain). I overvolted them to an average of 0.78v. I'm using the stock software. Autotune is off, and some chips are set to 54 and some to 55, based on manual testing.

That's cool. I get 115GH/s with 3 H-boards. The moment I add the fourth it falls to 84GH/s. Using stock software, tried  both Autotune on and off. I guess I will have to dig deeper. Hashrate starts off good after power on and falls down within a minute or so.   Thanks for your help though Smiley
hero member
Activity: 681
Merit: 500
October 18, 2013, 05:58:53 AM
Guys, looking for someone with a version 1 M board and successfully running 4 or more H cards

I have 4 cards, without problems most of the time. More are arriving later today.

wow, I have two stubborn version 1 M boards, that just wont hash properly with more than 3 H cards.

 What is your hashrate with 4 cards? Are you using the chainminer that came with the board? Any special settings? Thanks in advance.

138.5 GH total, but 3 chips are dead (2 bypassed and 1 at the end of the chain). I overvolted them to an average of 0.78v. I'm using the stock software. Autotune is off, and some chips are set to 54 and some to 55, based on manual testing.
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
October 18, 2013, 05:50:03 AM
Guys, looking for someone with a version 1 M board and successfully running 4 or more H cards

I have 4 cards, without problems most of the time. More are arriving later today.

wow, I have two stubborn version 1 M boards, that just wont hash properly with more than 3 H cards.

 What is your hashrate with 4 cards? Are you using the chainminer that came with the board? Any special settings? Thanks in advance.
hero member
Activity: 681
Merit: 500
October 18, 2013, 05:40:53 AM
Guys, looking for someone with a version 1 M board and successfully running 4 or more H cards

I have 4 cards, without problems most of the time. More are arriving later today.
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
October 18, 2013, 05:32:01 AM
Guys, looking for someone with a version 1 M board and successfully running 4 or more H cards
sr. member
Activity: 658
Merit: 250
October 17, 2013, 02:50:03 PM
I received a new october card where the R02F resistor was 2.11k instead of 1.8k. Pencil modding it 2.05 boosted the valid hashrate from 32 GH/s to 34.5 GH/s, even though one chip dropped semi-dead after the modding.
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
October 13, 2013, 02:00:40 PM
you can also ... regulate with clockspeed ... that's what i did ...

I had one board shutting down because graphite getting to low resistance on high temp ...


so I put all chips to clockspeed 53 ... now it's again stable ... and I can slowly approach again ...


It would be interesting to see which chip is where located ....

chips with big distance to the reg & resistor ... will probably have lesser influence ^^


Code:
+-+-+-+-+
|3|4|B|C|
+-+-+-+-+
|2|5|A|D|
+-+-+-+-+
|1|6|9|E|
+-+-+-+-+
|0|7|8|F|
+-+-+-+-+
  |||||
  +++++

im not sure. i clocked chips 3-6 from 54 to 55 and it resulted in errors. right now, all chips are tuned to 54 without an issue and my hashrate is around 39.5GH. I half expect this to rise a little bit, since the resistance seems to fluctuate with the ambient temperature. In the evening when my apartment is the warmest is when ive always seen it produce the highest hashrates but also push the limit where errors take over and start shutting down chips and shunting my hashrate.

42GH seems to be the upper bound before this occurs, at least with my prior heatsink configuration. Im happy to run a few days as it is now to follow the results and see how stability is. (in my mind, anything over 35 is sweet, so to be pushing the lower edge of 40GH is perfect)
sr. member
Activity: 434
Merit: 265
October 13, 2013, 01:22:28 PM
you can also ... regulate with clockspeed ... that's what i did ...

I had one board shutting down because graphite getting to low resistance on high temp ...


so I put all chips to clockspeed 53 ... now it's again stable ... and I can slowly approach again ...


It would be interesting to see which chip is where located ....

chips with big distance to the reg & resistor ... will probably have lesser influence ^^


Code:
+-+-+-+-+
|3|4|B|C|
+-+-+-+-+
|2|5|A|D|
+-+-+-+-+
|1|6|9|E|
+-+-+-+-+
|0|7|8|F|
+-+-+-+-+
  |||||
  +++++
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
October 13, 2013, 10:24:10 AM
new heatsinks came in today Smiley



35x35x6mm with adhesive backings. I just swapped the 5 existing ones (15x15x8mm approx) for 4 of these. each one is just large enough to completely cover the backsides of 4 chips.

tweaked my pencil mod a bit to aim back at 40+GH. initial resistance was 1.13K(ohm) and initial voltage read was 0.805V

15 minute readings: voltage: 0.810    hashrate: 37.5-38GHash
my hope is that over the next 2-3 hours of operation, maximum temperature will be reached and the voltage will approach my ideal target of 0.825V. however, at this point it looks like it may not go past 0.815v eventually, so i may have to re-pencil it in a few hours once it is confirmed.

24hr readings: voltage: 0.821-0.830 depending which capacitor is measured (closer to the volatge regulator = higher)   hashrate: 39-40GH
the ambient room temperature feels a few degrees warmer today, which may be causing this result. Either way, it should be noted that this indicates pencil modding results may increase over time and can result in bad performance if the final state is too high

based on these results, i am now trying to push chips 3-6 to 55 since they have lowest voltage compared to chips 9,10,15,16 (which run fine at 54 right now)
UPDATE: this method did not work. the chip error rates rose significntly, and are fine tuned back down to 54 now. I guess the voltage difference does not enable significant headroom for tuning. all 16 of my chips work best at 54 it seems, and any attempts to push for 55 typically takes it from a 1% error rate to 4-8% errors compared to marginal gain in hashspeed
hero member
Activity: 826
Merit: 500
Crypto Investor ;) @ Farmed Account Hunter
October 13, 2013, 06:07:14 AM
Mining should not need to access the SD card at all. I don't have the image, but is the swap disabled? There is no need of swap with revision 2 available memory.
Another reason could be that chainminer is storing data to often in it's logs on the file system. Not sure which logs are important and how big they get, but turning some of them off or storing all on a small ramdisk, may solve the dead SD problems.

If you can tell me what and how to check it I can. I am just a Linux n00b a bit.
Came to work.., rebooted Pi, it came up with no errors.
I do have a power switch that I can make Pi power cycle remotely by pinging it periodically.
Help@!, lol.
type free on the command prompt - if swap is used you will see it as the last line returned.
'dphys-swapfile swapoff' to turn it off and 'dphys-swapfile uninstall' to disable it

EDIT: to disable the service on startup use:
sudo update-rc.d -f dphys-swapfile remove

free reports:
102396 free and total
0 in use ( I tried randomly every few seconds etc.. but it never changes)

Now it's been nearly 3 days and my Pi took a dump again with the same errors.
My Power switch was still getting ping replies from Pi so I never rebooted. I was down for about nearly 4 hours.
Can anyone tell me how to get my Pi to auto reboot lets say every 24 hours?

Maybe I should redo my SD card again when I get to work tomorrow.

Thanks!

hero member
Activity: 681
Merit: 500
October 13, 2013, 04:33:40 AM
i think my fan use may be excessive for 1 board, but ive noticed 3 components need to be cooled:
1) the chips (duh) -  this is easily achieved by cooling the massive flat back of the PCB
2) the voltage regulator (?) (big cube on chip side of board) - i have some small heatsinks stuck to it that are perhaps a bit too small a footprint, but still work well. the 3rd fan i mentioned blows directly at this area, including component #3
3) the smallish chip/resistor (?) - on the chip side of the board beside component #2. it is very near the pencil-modded resistor and i think a major contributor to the heating and subsequent resistance drop as the unit heats up. I put a tiny heatsink on its backside as seen in the picture, where there are a lot of thermal vias. that heatsink is the warmest of all of them

The big cube is the inductor (Pulse PA0513.441NLT). The small chip is the voltage regulator (TI TPS53355).
legendary
Activity: 1511
Merit: 1072
quack
October 13, 2013, 04:22:22 AM
Chainminer is not BFGMiner. rPi and Debian + chainminer, yes.

You can tune your chips by copying /run/shm/.stat.log or /tmp/best.log to /opt/bitfury/best.cnf and then editing the file. There are instructions in the first post of this thread. A means autotune, a means autotune off etc...

Since chainminer isn't bfgminer, it doesn't have bfgminer-like api.
full member
Activity: 153
Merit: 100
October 12, 2013, 12:06:37 PM
Heya,

I like being able to manage CipherMine's hardware via APIs. With our Avalons all we can do is read from them which is a bit frustrating (can't modify pool listings for instance, which is how our software switches between coins), but since the BitFuries are based on a Raspberry Pi and Debian (I think) I'm hopeful we can get the API working.

The presence of /home/pi/bfgminer suggests that they use bfgminer or some fork of it. /etc/rc.local calls /opt/bitfury/start-stratumproxy.sh and /opt/bitfury/start-miner.sh, the latter of which is presumably the thing that starts actual mining. start-miner.sh is pretty minimalist too:

Code:
#!/bin/sh

killall miner

cp /opt/bitfury/empty_stat.json /run/shm/stat.json

if [ -f /opt/bitfury/best.cnf ]; then
        cp /opt/bitfury/best.cnf /run/shm/.chip.cnf
fi
cd /run/shm

screen -d -m /opt/bitfury/chainminer/miner
exit 0

/opt/bitfury/best.cnf is not present on our units, nor /run/shm/.chip.cnf. That file is a potential candidate for some configuration, but if so I don't know what it should look like.

My first thought  /opt/bitfury/chainminer/miner (a binary file) is a custom compiled version of bfgminer, but having run it I've concluded that's not the case. I can achieve what I want just with some command-line options to bfgminer which is the frustrating thing. I tried changing the above to:

Code:
screen -d -m /opt/bitfury/chainminer/miner --api-listen --api-port 5001 --api-allow W:127.0.0.1

But that didn't appear to do anything:

Code:

root@bitfury:~# telnet 127.0.0.1 5001
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused

Any suggestions?

Kate.



EDIT: Punin responded almost instantly - the man's dedicated to supporting his customers is awe-inspiring!

Quote
We are not in fact using BFGMiner by default although the latest version supports our product. Our own software is called chainminer and can be found in /opt/bitfury/chainminer

Our web based setup interface also works together with chainminer. If you want to run bfgminer, you must modify your /etc/rc.local or start-miner.sh to run bfgminer instead of chainminer. Please see github for latest version of BFGMiner that will work with your unit.

If you want to tweak things by hand please let the rig run for 5-10 mins then run:

cp /run/shm/.stat.log /opt/bitfury/best.cnf

and then edit the file.


I guess compiling bfgminer it is then!
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
October 12, 2013, 11:56:37 AM
new heatsinks came in today Smiley



35x35x6mm with adhesive backings. I just swapped the 5 existing ones (15x15x8mm approx) for 4 of these. each one is just large enough to completely cover the backsides of 4 chips.

tweaked my pencil mod a bit to aim back at 40+GH. initial resistance was 1.13K(ohm) and initial voltage read was 0.805V

15 minute readings: voltage: 0.810    hashrate: 37.5-38GHash
my hope is that over the next 2-3 hours of operation, maximum temperature will be reached and the voltage will approach my ideal target of 0.825V. however, at this point it looks like it may not go past 0.815v eventually, so i may have to re-pencil it in a few hours once it is confirmed.



Im intreagued by those heat sinks, would you have a link handy to some specs, or a store selling them ?
...and please post a followup on how goot they work with, ambient temp and fan specs would be much appreciated also.

i got them on ebay, around $1.50 a peice i think. they seem to work quite well and are definitely getting warm. they stuck on with ease (removing them may be a totally different story, the adhesive is on par with glue). I have a 120mm fan aimed directly at the back of the board from about 5" away, a 80mm pointed diagonally at the front face, and a 80mm on the other side of the front, so that its air channels between the RPi and h-board.

i think my fan use may be excessive for 1 board, but ive noticed 3 components need to be cooled:
1) the chips (duh) -  this is easily achieved by cooling the massive flat back of the PCB
2) the voltage regulator (?) (big cube on chip side of board) - i have some small heatsinks stuck to it that are perhaps a bit too small a footprint, but still work well. the 3rd fan i mentioned blows directly at this area, including component #3
3) the smallish chip/resistor (?) - on the chip side of the board beside component #2. it is very near the pencil-modded resistor and i think a major contributor to the heating and subsequent resistance drop as the unit heats up. I put a tiny heatsink on its backside as seen in the picture, where there are a lot of thermal vias. that heatsink is the warmest of all of them

I feel confident that later today i will try to push the pencil mod further. I would buy the resistor seen above but lack the solder tools and skill level to DIY it. (i can solder wires and big stuff, but surfacemount is a recipe for disaster)
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