I am in the middle of moving, but I will download the ISO (instead of using the one on my computer), burn it freshly and check if it works out of the box in the comming days. If there are issues I will try and adress them.
If you have another SD card you can always just plug in the v4, if that seems to work for you.
emdje, I too was never able to get v5 working. Reverted to v4. Tried two different SD cards. Didn't report since it appeared others were successful. felix, I would recommend trying v4 to see if you can get that one working. Thank you for pointing that out. No I most certainly will have another look at it in the next comming days. |
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In your photo I see the raspberry pi led's. But I meant the led's on the hashing boards.
You say that you need it for a 12 chip board. Are you currently trying to use the v5.0 software on that, or on a regular board?
I will try the software in the comming days none the less.
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How is your A2 connected to the network? Cable or wifi? Wifi obviously requires setting up with cable access to the pi. If cable, how is it routed? directly to the router, through a switch? Is the cable still good? What are the lights on the board doing, blinking first and then just burning?
I am in the middle of moving, but I will download the ISO (instead of using the one on my computer), burn it freshly and check if it works out of the box in the comming days. If there are issues I will try and adress them.
If you have another SD card you can always just plug in the v4, if that seems to work for you.
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someone tried v5?
It does not work for me.
I can not find A2 on the network ..
im us advanced ip scanner.
and twice downloaded iso
need ISo for new a 2 -12 CHIPS 1380 MGZ
Try logging into your router and look at the connected devices. When I need to find my A2 I just login to my router and see the raspberry pi connected to it. I never have any issues finding my A2 with any of the software versions. im logging into router not present a2 device software v5.0 -working,,,,,,,,,?  ? what ip in v 5.0 dhcp,? Yes DHCP for the IP. But what do you mean with your other question, could you post a screenshot of your router page? |
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I just ordered an A2 Mega from ZoomHash and it should be here tomorrow. I am completely new to this miner and I saw the title to this thread about under and overclocking the A2. I would be interested in cranking mine down so that is runs cooler and uses less power. Is this image compatible with the A2 Mega? What is the slowest speed we can run these and be stable? Any recommendations you might have would be greatly appreciated!
Providing that you can provide a stable power source, and keep the chip cool, it will run stable from 400MHz (5Mhash per 8 chip board) to 1500MHz (18.6 Mhash per 8 chip board). If you want to overclock the chips beyond 1200MHz, increase the voltage to .92, or as one user suggest even to 1 volt. Somewhere in this thread I describe how you can overvolt (or undervolt in the same way) your board. If you significantly want to go under the 1200MHz you can undervolt your board. I have no experience with that though as to how low with which clock frequencies you can go. |
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someone tried v5?
It does not work for me.
I can not find A2 on the network ..
im us advanced ip scanner.
and twice downloaded iso
need ISo for new a 2 -12 CHIPS 1380 MGZ
Try logging into your router and look at the connected devices. When I need to find my A2 I just login to my router and see the raspberry pi connected to it. I never have any issues finding my A2 with any of the software versions. |
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I have been working on a miner that I suscpected the contrller board died for some reason, I had built a replacement out of a CPLD but it is not the handiest thing to put in place so today I decided to figure this thing out. The device would not find any boards but I tested all of them one at a time and they worked. I traced out everything and found that one of the MISO lines back had no voltage on it, they use a couple of 3 input and gates for only select the signal going back cause I guess the theoy is that it will be logic low when the board is selected. Anyway got to looking and there are pullups on all the lines but for some reason not pulling up, figured out which resistor it was and when I tried to test it is was actually broke in two, replaced resistor and away it went. R296
Great that your got it working  |
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In my understanding it means that if the application compiled against the vulnerable glibc does a gethostbyname() call it can be owned. Now since a miner typically resolves the IP of the pool it wants to connect to, the miner might be pretty easy to attack as you can relatively easy predict that it will resolve its pool sooner or later. It is unclear to my understanding if the DNS server your miner uses would discard an actual malformed answer that would trigger the vulnerability.
The firewall you have in front of your miners doesn't help anything here (except you have it locked down so much, that the miner only can connect to the pools ip and port, else the attacker just launches a reverse shell with nc or whatever is en vogue right now.
So theoretically you could just remove any DNS servers from your Pi (echo "" > /etc/resolv.conf) and instead of the name of your pool, add the IP of the pool in the web frontend (and hope your pool doesn't switch providers or whatever could make a change of IP necessary).
Other than that running "apt-get update; apt-get upgrade" and waiting for a new miner binary to be released there is not much we Terminator operators can do right now. Let's hope this will be before real exploits are being published. AFAIK there are currently only 2 PoC exploits in the wild which make it unlikely that the the average Terminator out there is targeted but that might change quickly once there is for example a module for metasploit.
True I can see that, for some reason I had not though about send a download and run type thing. I was looking, I see the vulnerability for glibc but not really for eglibc, guess going to have to make a test bench somehow eglibc is equally affected from the problem as far as I can judge: i.e.: http://www.ubuntu.com/usn/usn-2485-1/I am not that into coding and software as I would like. Do I read it correctly that because I have build the cgminer builds on the raspberry pi and not under Ubuntu that the builds are not vulnerable?? |
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I'd be blaming the power supply. Disconnect say half of the boards from power and see if it becomes stable. The PSU in mine could not handle more than 4 at 1200MHz, and only 5 at 700MHz. I just strapped a second power supply to mine, each powering 3 boards at 1320MHz.
That is very well possible, my blade is using about 200 watts for the one 8 chip blade (218W in total). But running at 700MHz would draw about 115W per blade * 6 = 690W + fans so lets say 750W for the power supply. If it is a bad one it might cause it to be unstable. (Running your rig overvolted at 1440 MHz it would draw 1500+Watts and doing ~132MH/s) <-- I do not recommend btw because of the power draw and the heat it produces, 1 blade like I have you can cool very well. |
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No that is not possible, and I don't know which version of glibc is used I would have to check that when I have some more time. |
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Why can not I run the image? I do not see it on the network. My raspberry Pi work good.
Do the green lights on the blade stop flashing after a while or do they continue? If they stop flashing it means the blades started to hash. I don't know how you connected your blade to your network, but it might be the IP address is changed. With new versions of the software that sometimes happens with me too. I just login to the modem and see what devices are connected and find the IP like that. If not try to hock up a monitor and find it using the command line: https://learn.adafruit.com/adafruits-raspberry-pi-lesson-3-network-setup/finding-your-pis-ip-address |
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Can someone confirm? I think it is fairly obvious but wanted to make sure. If this is the case then a standard PCI-E connector will not work as that has the +12 V on the bottom or opposite the clip side:
I can confirm. When I changed out the power supply for a BeQuite one, I had to cut the cable somewhere and connect the plus to the minus and vice versa. I have an 'old' A2 with 8 chips (two blade version) If that is different on the A2 mega's I don't know. |
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Hello i was wondering if i O/Cd my A2 (older black version) to 1280 or 1300mhz if i could do this WITHOUT volt modding my machine?
sorry if this is a silly question.
thank you and i appreciate any responses
There are no silly questions  Technically you can run your chip at any frequency without voltmodding, only it will not run very well. It won't break at 1400 mhz, it will just result in a lot of hardware errors. Reducing those hardware errors requires voltmodding (increasing voltage to the chip). On the other side, if you want to run it at a much lower frequency your chip does not need that much voltage and you can reduce the voltage to the chip. |
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Hi emdje,
I would like to try your new software, but for download I need a password?
I misunderstood the info when I copied the link, I now added the right download link. Thanks for pointing it out! |
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Hi emdje,
I would like to try your new software, but for download I need a password?
I see it sh*t sorry, will fix that. |
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Could anyone who tried this version on 10 of 12 chip bladed report back if it works or not?
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New version uploaded: V5.0  This version should work on the newer A2's as well. It takes up to 12 chips, so even the more exotic A2 versions should work on it. Clock options are: 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1280, 1300, 1320, 1340, 1360, 1380, 1400, 1420, 1440, 1460, 1480, 1500. Default clock value has been set to 1200. Note that overclocking your A2 requires Voltmodding. https://mega.nz/#!rIdCwaYI!eh55V6G3eAWILmRJbXZA__gzSQcsBePByxpIqEr4cyUNote that the default frontend is set-up for 6 chip blades, meaning that the MH/s values and so on. I will upload other versions of the frontend later that you can manually replace. Also be carefull when overclocking and using higher clock settings. When using 1440 MHz for example the blade draws 200Watts:  And the connectors can get hot locally:  
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Sound great. When are you planning to release version for the newer A2's 110 Mh/s ?
Most probably today. It is however untested for newer A2's (I don't have one so I can't test that). |
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I am working on a new version that will run from 400 MHz to 1500MHz. Plus it should be set up to run on the newer A2's as well with a higher chip count. (this would require testing from someone who has one) Mine is currently running on 1440MHz without problems and doing 17.6 Mh/s on average with an average temperature of 34 degrees Celsius and at ~ 0.92 Volts ( https://www.nicehash.com/?p=miners&a=0&addr=1EsEWk5XtcsmRdpbjciTFHL91n439NTa6d&l=0 <-- yes I only have one blade left  ). This would result in an overclocked 6 blade, 10 chip terminator to run at 132 Mh/s |
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The driver should have something to do with it at least. emdje's version supports 8 chips per board as a max in the current releases, according to him. If it's anything like the A1 source code, it should matter.
Well if he is using the 'standard' version of my software is should work, as the number of maximum chips is coded in the software. However when he uses the 'mini' version of my software that should work. |
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