worth the positive note that my 10 sample gen2 chips arrived today.  |
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Create a blade which can be used to replace a current one in an avalon and sell it at a price which leaves a 20-30% earning margin to the buyer and you can probably sell six thousands of such blades in a few hours...
That's the impossible part. Everybody has a different idea of what the price should be to "leave 20-30% earning margin". And if you want to satisfy most potential buyers, the price has to be such that the vendor has to sell at loss. Look: a Avalon 55nm chip at 1.5Gh/s delivered about 2 weeks from today would probably not mine more than 0.060-0.070 BTC during its entire lifetime (most people would agree). If you want to leave 20-30% earning margin, it means the vendor would have to sell at less than 0.046-0.058 BTC per chip. But the chip alone costs 0.060 BTC from Bitsyncom... Am I missing something Avalon's website says 500 gen2 for 12BTC. So 12/500 = .024 BTC per chip? I didn't realize these chips have built-in Wifi Internet and come ready to daisy-chain to each other and power directly by 110V/220V AC outlet all while self-cooling to below 50 °C. I am ordering 50,000 of these magical chips right away! what are you smoking? Obviously the chips need to be part of a system, just like the gen1 chips and chips made by every other manufacturer. |
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is there any live chat like maybe irc or something. i don't have a lot of time and as days goes by i lose out on the chance to mine.
on the bottom of the bitfury user guide, it has an irc channel/server listed for support. OI can't think of it off the top of my head though. Find the user guide under "mining support" sub forum in the OP of the thread: [guide] bitfury support/tuning bfsbsupport on freenode IRC |
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i've also notice that my hboards are getting really hot even when i'm not mining.
miner: no process found
what does that mean. is something wrong with my sd?
i think you did the chainminer update wrong. without going back to dissect each change you made, heres the best way to start from scratch: 1) download the newest SD image for your version of m-board 2) connect a screen and keyboard and start up the system. login as pi/raspberry 3) on first boot it should ask you if you want to change the ip. check your router (usually 192.168.X.1) and set the bitfury to 192.168.X.249 (x being a number, likely 1 or 0) 4) set up pool info via ssh or webUI 5) you should be mining already. to update the chainminer to improve the error rates: ChainMiner for M Board Version 2.X boards
DO not use this guide for Version 1x m-boards.
It will fry your chips. This is only meant for Version 2 of the M-board.I apologize for grammar as I took 2 sleeping pills and I can barely feel my fingers. 1.login as pi or root 2. type "nano /run/shm/.stat.log" if you wish to see the performance of all the chips on your board before upgrading chain miner. (optional step) 3.(backup your chainminer version) (this creates a copy of the folder) a. sudo cp -a /opt/bitfury /usr/bitfury.backup b. cd /opt/bitfury/ c. pwd (make sure you are in /opt/bitfury) d. ls -al (or type dir) e. rm -rf chainminer (this removes everything in the chainminer folder and the chainminer folder itself) 4. make sure you are in the /opt/bitfury directory and not in /opt/bitfury/chainminer (it should be deleted anyway 5. type "git clone https://github.com/bfsb/chainminer.git" 6. it should now start getting the chainminer git. 7. now type "cd chainminer" you should now be in the chainminer directory 8. type "make" 9. Its going to take 5-10 minutes to create the chainminer...maybe longer. I got some warning but everything was fine after it all finished. it will go back to a bash prompt when done. 9a. Just wait...this is the longest part of doing this change.. 10. sudo reboot |
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ive got an issue: all my chips are reading "speed->0" or "turn off" within a few minutes of zero hashing.
i have tried several restarts, stop/start miner commands, and verified the proxy id is correct. The issue happened on 2 h-boards at the same time, and suddenly after days of stable hashing
edit: modified the second worker to use port 3334 (ghash.io) and left the first at port 3333 - looks like its ramping back up slowly
edit 2: great -after a few minutes the cards read 51GH (quite low), and the pool topped at 2.5GH. Its now dropped back to zero again, whats going on? (I have a usb asic on the pool just fine)
edit 3: ive decided to spread my effort
worker 1- ghash.io port 3333 - nothing seen at pool
worker 2 - ghash.io port 3334 - nothing seen at pool
worker 3 - mint.bitminter.com - briefly 9GH, now nothing?
the reported hashrate at the bitfury webUI started at 70Gh and over 5min has slowly dropped to 25Gh. wtf is going on here?
take bad hboard outside for few minutes then put back and run it. ps: I got 2 hboards did same to me. I dont think thats the issue - i already pulled the boards and downvolted them a little to 0.81V o see if they were getting voltage shutdowns/issues - no luck Im at wits end and i hate to go to bed knowing my machine is doing nothing  I have restarted my router, my modem, my router again, the bitfury system several times, and the issue is the same: - the bitfury webUI page is accessible - Ive tried a few different pools (briefly had it work for about 1 minute then it stopped again) - ive start/stop miner several times and confirmed all proxy info - router is forwarding ports 3330-3340 EDIT: now its working again (cross fingers). I set ghash as worker 1 and slush as worker 2. both report hashrate. However, the proxy info is the same so i dont understand what possibly changed |
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ive got an issue: all my chips are reading "speed->0" or "turn off" within a few minutes of zero hashing.
i have tried several restarts, stop/start miner commands, and verified the proxy id is correct. The issue happened on 2 h-boards at the same time, and suddenly after days of stable hashing
edit: modified the second worker to use port 3334 (ghash.io) and left the first at port 3333 - looks like its ramping back up slowly
edit 2: great -after a few minutes the cards read 51GH (quite low), and the pool topped at 2.5GH. Its now dropped back to zero again, whats going on? (I have a usb asic on the pool just fine)
edit 3: ive decided to spread my effort
worker 1- ghash.io port 3333 - nothing seen at pool
worker 2 - ghash.io port 3334 - nothing seen at pool
worker 3 - mint.bitminter.com - briefly 9GH, now nothing?
the reported hashrate at the bitfury webUI started at 70Gh and over 5min has slowly dropped to 25Gh. wtf is going on here?
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so my miner stopped overnight inexplicably (charts indicate it unning stable between 76-79GH (2 cards) for 36hrs) and I rebooted it and charts indicate that caused it to work for about a minute or 2 then stop again.
using SSH command /opt/bitfury/start-miner.sh, i get:
cp: cannot create regular file `/run/shm/stat.json': Permission denied
cp: cannot create regular file `/run/shm/.chip.cnf': Permission denied
Is this an SD issue or something else?
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That is for regulating voltage. Trimpot...
whoops, now that i look i actually see the markings on it - makes sense! At first glance i thought it was a little antennae connector. |
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looks nice, but are that many capacitors really needed, rather then substituting some larger single caps? when might the design be for sale? |
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Some progress to report... At 1.03 V my chips seem to run pretty stable around 14 GH/s. I can't do power-measurements right now, because the voltage-drop on my current-meter is so big that i cannot calculate the power without a big error. (Can't measure actual voltage at the same time now, maybe on monday.) Firmware and cgminer-driver seems to run pretty good at the moment, besides some Idle-Warnings from time to time and a decent HW-error rate of ~1.7 %.  I have converted the Eagle files to Altium, they need some cleanup but would happily commit them into the repository if you like...
Very good. If you tell me how i can gain you access to the github repo, i would be very interested. But be aware that this is only a test-board. If i make a final one (if here is some interest), a few things will change. For example the number of chips, dimensions, or the placement of the decoupling caps and things around the chips - It would be better if the components are a bit lower then the chips or are not in the way for a topside-heatsink. I wasnt aware that the chips need more cooling from the top side as from the bottom side. At the moment i have some copper distance pieces and little chipset-heatsinks on the chips, but that just doesnt scale.   design boards that fit in standard avalon casing! so we can scrap the old cards and get 4x80x1.5GH per unit.
That sounds interesting, but unfortunately i don't own such a avalon case. It would be helpful when someone who has one, tells me the exactly dimentions of the board, heatink positions, etc. and can provide some detailed photos. looks good - whats the blue component, a wifi antenna? It may be better to scrap that component to save a few dollars on parts/assembly since most users prefer to run an ethernet line (my 2c - either way i really like the board and applaud its working!! |
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Im looking for someone with a bit of EE design and eagle experience to help bring my ideas to fruition. I would like to produce h-boards for v2 style m-board since bitfury has held over new sales for at least a few weeks coming.
it would be nice to develop a 12 or 16-chip design with a trim pot that can be adjusted from the side (ie: while the unit is in operation) rather then from the front like the v3 boards use.
it could be an open design or whatever is needed, the main focus would be to enable these to be produced sooner and cheaper than bitfury is bringing to market, and ensure that v1/2 m-boards can continue to be upgraded if BFSB/MBP discontinue support
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wow.... all those blades
if i count right - 92 blades? thats about 850-950GH depending on tuning (possibly tuned down for efficiency) |
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Putting issues of the past aside for a brief moment....
Why would anyone buy these chips when options like bitfury are available and much more efficient?
I would very much like an answer from Avalon team on how their chips are better than bitfury. Please answer this for me.
cheaper? bitfury chips are $15-25 right now for 1.7-2.5GH speeds. Avalon chips are around $6-8 for 1.1-1.7GH speeds so in terms of GH/$ avalon would be about 20-40% better option. however there is higher cost for power use, pcb area, and add't components |
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i have the entire Bank 1 at zero hashing (first 4 slots) i have 3 140mm fans and one large box fan blowing at it. have v2.2 H boards with v3 M board. doesn't matter which H boards go into those slots. any suggestions? Im going through something sort of similar however I found that it was becasue my best.cnf file was not configured properly. I'm tuning each chip to AIfDSo Bank 1 Bank 2 Bank 3 Bank 4 1: 35.137GH/s 5: 2.407GH/s 9: 32.583GH/s 13: 34.36GH/s 2: 31.768GH/s 6: 32.583GH/s 10: 0.815GH/s 14: 34.915GH/s 3: 32.175GH/s 7: 7.775GH/s 11: 36.581GH/s 15: 33.471GH/s 4: 34.915GH/s 8: 33.693GH/s 12: 35.804GH/s 16: 30.213GH/s Bank 1 Bank 2 Bank 3 Bank 4 1: 36.86GH/s 5: 34.456GH/s 9: 10.545GH/s 13: 19.936GH/s 2: 31.699GH/s 6: 18.045GH/s 10: 30.834GH/s 14: 20.129GH/s 3: 30.802GH/s 7: 34.424GH/s 11: 4.167GH/s 15: 18.045GH/s 4: 22.565GH/s 8: 20.417GH/s 12: 5.353GH/s 16: 15.353GH/s Bank 1 Bank 2 Bank 3 Bank 4 1: 30.68GH/s 5: 9.964GH/s 9: 35.004GH/s 13: 35.276GH/s 2: 32.212GH/s 6: 19.556GH/s 10: 28.576GH/s 14: 20.186GH/s 3: 32.227GH/s 7: 14.574GH/s 11: 23.293GH/s 15: 13.157GH/s 4: 13.085GH/s 8: 21.289GH/s 12: 23.221GH/s 16: 12.541GH/s This is my result from 3 tests at 5 minutes in on those settings - I saw a chron job 1-line script here that Keefe wrote that is supposed to reset stratum every 10 minutes, I want to try that script but to restart my miner every 5 minutes - seems like I'm getting solid hashrate within that 1st 5 minutes then everything runs - but as you can see from my past tests - my hashrate seems to drop every time after 5 minutes - I have 6 120 mm fans going and heatsinks so I have no idea what gives  Chainminer's autotune function doesn't kick in until 5 or 10 minutes (not sure which) after it starts. Also, the stats in the first 5 minutes aren't reliable. But if you think autotune is the problem, create /opt/bitfury/best.cnf like this and restart chainminer: 1 aIfDSo 53
2 aIfDSo 53
3 aIfDSo 53
...
256 aIfDSo 53
Note: Not sure if it matters, but those are tab chars between the columns, not spaces. Here's a simple script to easily create such a best.cnf: rm /opt/bitfury/best.cnf ; for i in {1..256} ; do echo -e "$i\taIfDSo\t53" >> /opt/bitfury/best.cnf ; donei would suggest checking the voltage on the problem boards. over 0.86V and it might just be that they are getting a little too much voltage and thats causing issues without intensive cooling. try tuning the voltage on problem boards to <0.85V opposite for the boards that are stable but less than 35GH. check thier voltage and perhaps try tuning it up 0.005-0.01V and see what happens; you should get an extra 1-3GH |
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Question - I am suppose to receive a second EOL board tomorrow. How do order them on the M-board.
The higher hashing one second to the end and then the lower one at the end of the line? Does it matter?
I don't want any screw ups as I'm adding two more regular h-boards on top of this.
EOL must be in the 4th slot of a bank. You can use up to 4 EOL cards per hboard |
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If anyone is interested I have some of thus I can sell you... for only 10 chips, a smaller 30A component would likely suffice, such as the one bitfury hardware uses: Texas Instruments TPS53355 http://www.ti.com/product/tps53355it serves a similar (or identical?) purpose, with a much smaller footprint and is almost certainly cheaper to source and install. |
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The Klondike has been finalized and is hashing. So, if the chips are pin compatible and package compatible, it should just take some minor tweaking to make it go.
However, considering that Avalon delays almost killed the Klondike to begin with, I doubt anybody in their right mind would trust Avalon...unless some real financial incentive was on the table, i.e. some chip discounts.
my understanding is that: 1) the klondike used hard-to-find/expensive components 2) the avalon gen2 chips may be the same size, but have a different pinout that likely requires a slightly re-traced PCB. I dont have PCB experience, but have quality fab options available if there is a good simple design Yes the PCB would need changes because the ASIC chips have some differences. I would get a different power supply like this one. http://www.lineagepower.com/oem/pdf/UDT020A0X.pdfLayout the board with all the chips together and not divided by the power supplies. Probable use a PIC18 that has more memory and an easier USB bootloader. times like this i wish i was an electrical engineer *sigh* - however i might suggest this power supply: Texas Instruments TPS53355 - i dont know how it compares in price, but it has a VERY small footprint (needs thermal vias), is 30A, and is what bitfury uses to run a 16-chip board near its maximum capacity. I imagine 16 avalon gen2 chips will also require close to 30A if running at higher speeds. Also, the component's output voltage is controlled by the value of a resistor linked to it, so changing the voltage from 0.8->0.9v for example is as easy as swapping in a slightly lower resistance or pencil modding. also, can people start to get over the avalon hate? they seriously screwed people over (espescially anyone invoved in the K16 projects) by "losing" thier chips and slow hipping of batch 3. i get it. but now they have completed 1 (out of 3!) auctions to the satisfaction of bidders, and are selling and delivering currently stocked items for fairly competitive rates (3.5BTC for 110GH right now isnt bad, not enough to make me buy, but close) |
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these are tiny and require a lot of peeling and sticking (they work well though - i have them on the fronts of each chip, but for the backsides i started using 35x35x6mm heatsinks that look great and provide a bit more coverage. (however, when placing them i had the distinct impression thay will not be easily removed (not that they need to be) |
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For the Yay:
one, I hope not too stupid question: can I just rip these little brown thingamajigs off the august h-boards, or is it counterproductive? If yes, how do I do it best? its doable, but its not really worth it IMO. youll save a few measly watts and maybe a bit of heat, at the cost of labor time and risk of screwing with a working system. Bitfury did it for both the above reasons, as well as to save the costs of parts/assembly for several dozen capacitors per board (likely a few dollars each pcb) Bitfury has nothing to do with these boards. my apologies - I was generalising the change being implemented by both BFSB and MBP |
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