I did change dead from 0 to 56 and get better hashrate.
speed:5272 noncerate[GH/s]:190.339 (1.983/chip) hashrate[GH/s]:201.838 good:13295 errors:556 spi-errors:2 miso-errors:0 jobs:293 (record[GH/s]:0.000)
0: 878 30.938 33.907 2161 173 0 0
1: 879 32.227 34.161 2251 76 0 0
2: 877 33.257 34.225 2323 28 1 0
3: 878 32.627 34.605 2279 129 0 0
4: 879 32.914 34.372 2299 77 0 0
5: 881 28.375 30.567 1982 73 1 0
last one from Aug. starter kit no OC.
Topic: [GUIDE] BitFury Miner Support/Tuning - page 15. (Read 148049 times)
Hey guys, did you ever get a board which will not hash no matter what settings you try? I have obtained one such board. All it throws are loads of errors. I have tested the usual suspects voltage, etc.
It's a new PCIexpress style board, so I cannot bypass a chip.
I have tried disabling chips in software but the board will not hash. I tried it as a sole board connected to an Mboard.
It's a new PCIexpress style board, so I cannot bypass a chip.
I have tried disabling chips in software but the board will not hash. I tried it as a sole board connected to an Mboard.
maybe this fits 
http://www.youtube.com/watch?v=xNnAvTTaJjM
http://www.youtube.com/watch?v=xNnAvTTaJjM 
Hi guys - since the latest round of H-cards was shipped at .865v, rigs pull significantly higher wattage. I'm seeing signs of connector burn & overloaded power supplies with some customers. Please be safe - if you are overclocking or running a full rig, a 1200 watt supply is probably a better choice.
Keep your rigs away from flammables - remember these are high-wattage devices!
I've been a little out of touch, sorry if this comes late - we don't have these problems at the data center. We use a 10g high strand count copper wire between 12v supply and the metal lugs on the M-board. The length of our power cables is only about 12 inches.
Best,
Dave
Keep your rigs away from flammables - remember these are high-wattage devices!
I've been a little out of touch, sorry if this comes late - we don't have these problems at the data center. We use a 10g high strand count copper wire between 12v supply and the metal lugs on the M-board. The length of our power cables is only about 12 inches.
Best,
Dave
Ditto. I RMA'ed mine. Nothing obviously different about this board than any others.
hmmm .. somehow after plugin back one of my old h-boards ... one just stopped getting recoginzed.
I tried to use different slots without success and remarked that having other boards in subsequent slots in the same bank makes them also unrecognized.
I have no idear what happend I can't find any traces of something bad ... does any one can help or has an idear?
https://dl.dropboxusercontent.com/u/43738391/1.JPG
https://dl.dropboxusercontent.com/u/43738391/2.JPG
What can I check? Anyone?
I tried to use different slots without success and remarked that having other boards in subsequent slots in the same bank makes them also unrecognized.
I have no idear what happend I can't find any traces of something bad ... does any one can help or has an idear?
https://dl.dropboxusercontent.com/u/43738391/1.JPG
https://dl.dropboxusercontent.com/u/43738391/2.JPG
What can I check? Anyone?
I have something similar,
a new board, one without capacitors, all of a sudden is not recognized anymore.
I've moved it into nearly every slot, it is not recognized.
No burn signs, at a visual inspection board seems like all the others.
Any idea?
Thanks.
spiccioli
Hi,
i havent since days no access to support chat at http://ircnet.eversible.com/. Does anybody knows why?
Ciao
Enrico
i havent since days no access to support chat at http://ircnet.eversible.com/. Does anybody knows why?
Ciao
Enrico
Try connecting with an irc client to ircnet.eversible.com and join #bfsbsupport
So the v2.3 m-boards work with the v1.2 h-cards? I'm just about to design these in PADs.
Yes, I believe so.
Hi,
i havent since days no access to support chat at http://ircnet.eversible.com/. Does anybody knows why?
Ciao
Enrico
i havent since days no access to support chat at http://ircnet.eversible.com/. Does anybody knows why?
Ciao
Enrico
So the v2.3 m-boards work with the v1.2 h-cards? I'm just about to design these in PADs.
why do my hashrate diversify so much with "autotune off" and "55" for all chips. between 520 and 440.
You probably have some H-boards with overloaded VRMs. Check /run/shm/.stat.log every 5 minutes and see if the hashrate of some chips are changing significantly. If so, turn down the speeds on all the chips on that H-board until that H-board's VRM can handle it.
thank you very much! will try to do so. does this mean the "Voltage Regulator Module" on some boards is not able to supply the power which is needed for the chips to work with this clock settings?
The V3 rigs were shipped with the H-board trimpots set to a higher voltage than the original design, so when overclocking you'll usually overload the H-boards' VRMs before getting many nonce errors.
Question to PCB designers:
I submitted a Bitfury h board for fab and got the following message
Can someone comment if these changes can be easily done in Eagle?
I submitted a Bitfury h board for fab and got the following message
Code:
1. It appears that your design has 9-12 mil holes, we require a minimum of 15mil drill with drill+10 pads for vias and drill+15 pads for mounting holes.
2. We found over 5 thousand isntances of 5.8-5.9 mil spacing, we require a minimum of 6mil spacing and no less than 6.
2. We found over 5 thousand isntances of 5.8-5.9 mil spacing, we require a minimum of 6mil spacing and no less than 6.
Can someone comment if these changes can be easily done in Eagle?
why do my hashrate diversify so much with "autotune off" and "55" for all chips. between 520 and 440.
You probably have some H-boards with overloaded VRMs. Check /run/shm/.stat.log every 5 minutes and see if the hashrate of some chips are changing significantly. If so, turn down the speeds on all the chips on that H-board until that H-board's VRM can handle it.
thank you very much! will try to do so. does this mean the "Voltage Regulator Module" on some boards is not able to supply the power which is needed for the chips to work with this clock settings?
why do my hashrate diversify so much with "autotune off" and "55" for all chips. between 520 and 440.
You probably have some H-boards with overloaded VRMs. Check /run/shm/.stat.log every 5 minutes and see if the hashrate of some chips are changing significantly. If so, turn down the speeds on all the chips on that H-board until that H-board's VRM can handle it.
why do my hashrate diversify so much with "autotune off" and "55" for all chips. between 520 and 440.
Dave, we need the link the v3 sd card image.
And how well does that regulator seem to work?
very well in fact. No overheating issues until max 1V that I have tested, but the bitfury chips get super hot, since I donot have adequate heatsinking for them. Do you know how many amps you're pulling from that 30A regulator? Don't you want something a little beefier like 40A? And is an output side inductor unnecessary for that regulator?
. If bitfury will ever reduce prices of their chips, my plan is to get boards built and quickly solder the chips and couple of decoupling caps thrown in and connect this regulator on the outside. No fuss no muss. Nice! Maybe you could determine the amperage by measuring the resistance of the wire bundle between the reg and card while powered off, and voltage drop while running. Though it might not be possible to isolate it for the resistance measurement without desoldering.
Do those wires get hot? Could you make H-boards with that Intersil reg onboard?
I will try that. Right now I am doing stress test with the regulator
The wires are a bit warm but nowhere near hot
. My PCB dev skills are pretty rusty now, I used Orcad like 10yrs ago for school projects
, and haven't designed any more boards after that. 
I am trying to re-learn now with Eagle software, and it will take some time for me to design a board with a new regulator. Thats why I wanted to go ahead and get the original design fabbed and plug an external regulator.
hmmm .. somehow after plugin back one of my old h-boards ... one just stopped getting recoginzed.
I tried to use different slots without success and remarked that having other boards in subsequent slots in the same bank makes them also unrecognized.
I have no idear what happend I can't find any traces of something bad ... does any one can help or has an idear?
https://dl.dropboxusercontent.com/u/43738391/1.JPG
https://dl.dropboxusercontent.com/u/43738391/2.JPG
What can I check? Anyone?
I tried to use different slots without success and remarked that having other boards in subsequent slots in the same bank makes them also unrecognized.
I have no idear what happend I can't find any traces of something bad ... does any one can help or has an idear?
https://dl.dropboxusercontent.com/u/43738391/1.JPG
https://dl.dropboxusercontent.com/u/43738391/2.JPG
What can I check? Anyone?
Is the VRM working? Check voltage at the top of the Pulse inductor. You can use the M-board's ground screw for negative if you don't need an accurate reading.
hmmm .. somehow after plugin back one of my old h-boards ... one just stopped getting recoginzed.
I tried to use different slots without success and remarked that having other boards in subsequent slots in the same bank makes them also unrecognized.
I have no idear what happend I can't find any traces of something bad ... does any one can help or has an idear?
https://dl.dropboxusercontent.com/u/43738391/1.JPG
https://dl.dropboxusercontent.com/u/43738391/2.JPG
What can I check? Anyone?
I tried to use different slots without success and remarked that having other boards in subsequent slots in the same bank makes them also unrecognized.
I have no idear what happend I can't find any traces of something bad ... does any one can help or has an idear?
https://dl.dropboxusercontent.com/u/43738391/1.JPG
https://dl.dropboxusercontent.com/u/43738391/2.JPG
What can I check? Anyone?
And how well does that regulator seem to work?
very well in fact. No overheating issues until max 1V that I have tested, but the bitfury chips get super hot, since I donot have adequate heatsinking for them. Do you know how many amps you're pulling from that 30A regulator? Don't you want something a little beefier like 40A? And is an output side inductor unnecessary for that regulator?
. If bitfury will ever reduce prices of their chips, my plan is to get boards built and quickly solder the chips and couple of decoupling caps thrown in and connect this regulator on the outside. No fuss no muss. Nice! Maybe you could determine the amperage by measuring the resistance of the wire bundle between the reg and card while powered off, and voltage drop while running. Though it might not be possible to isolate it for the resistance measurement without desoldering.
Do those wires get hot? Could you make H-boards with that Intersil reg onboard?
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