i can only guess.
Are the cards overclocked? Do you use the auto-fan feature of the miner?
FyI: the codebase of vertminer is nearly the same as with cgminer-3.7.2 but the opencl kernel is tweaked -> the cards are pushed harder
My 7950s run since > 1 week without any problem (only yesterday i had to restart because here we had a 2 second power loss)
Not overclocked much, stock mem on the 7950 (1250MHz) and 1020 MHz engine. They are undervolted to 1.081V, but had no issues at all on these settings using normal cgminer. No auto-fan, 85% fixed fan, 60 degrees. Note I had the same issue on R9 280X, different rig (different PSU brand, different motherboard etc). I've been running those 280X without touching it and without any problems on cgminer. Hm, the settings look safe. My 7950s are at 1000/1500 with 1.012V (at 80°C with BIOS Fan control) The only relation to the 0 RPM i can see is with the fixed Fan. Did this happen also before with vertminer < 0.5.2? Or only now with vertminer-0.5.3? I was on vertminer 0.5.3 from the start. Also it is not related to fixed fan because my 280X had fan set to something like 60-90 and they had the same problem. I did now remember it could have coincided with some power fluctuations (we had rain and subzero temps, a lot of problems with powerlines), however in the settings topic there were several other people who also reported having the same problem, so I don't think that's it. Also for some reason I am getting a small amount of HW errors when running 280X on intensity 13, but none at 12. Not sure what I could try to get those to zero, because I am not comfortable running with those errors as I am afraid it could have something to do with that problem, and don't wanna end up with broken cards. I tried lowering TC under 8k but that only increased HW errors, I tried raising it to around 10k but did not help at all. |
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Could one of the developers please address this issue: https://bitcointalk.org/index.php?topic=416572.msg4971799#msg4971799There have been several people in that thread that responded they had the same issue. I am worried that this will kill my cards. I have had this problem after a day of mining VTC on two separate rigs (different cards too, 7950 and 280X). Short recap of the issue: After mining VTC for some time, some cards start showing 511 C and 0 RPM in Vertminer, are not hashing, and get very hot. Even after coldreboot, the problem does not go away, and also appears in normal cgminer (which previously never exhibited this issue). It seems it is necessary to turn off and wait some time before it starts working again. I've never had this problem with the normal cgminer. On some of my 7950s, after this issue occured, I never reached back the same hashrate as before (about 50KH/s lower in normal cgminer). Vertminer 0.5.3. I also noticed that when I use I13, TC8193 on my 280X (the I13 is crucial), I will get 1 or 2 HW errors when I start vertminer, but no (or not many) more after that. I am wondering if this could be related. However at I12 I cannot get more than around 270 KH/s, while I get 360 on I13. i can only guess. Are the cards overclocked? Do you use the auto-fan feature of the miner? FyI: the codebase of vertminer is nearly the same as with cgminer-3.7.2 but the opencl kernel is tweaked -> the cards are pushed harder My 7950s run since > 1 week without any problem (only yesterday i had to restart because here we had a 2 second power loss) Not overclocked much, stock mem on the 7950 (1250MHz) and 1020 MHz engine. They are undervolted to 1.081V, but had no issues at all on these settings using normal cgminer. No auto-fan, 85% fixed fan, 60 degrees. Note I had the same issue on R9 280X, different rig (different PSU brand, different motherboard etc). I've been running those 280X without touching it and without any problems on cgminer. |
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Could one of the developers please address this issue: https://bitcointalk.org/index.php?topic=416572.msg4971799#msg4971799There have been several people in that thread that responded they had the same issue. I am worried that this will kill my cards. I have had this problem after a day of mining VTC on two separate rigs (different cards too, 7950 and 280X). Short recap of the issue: After mining VTC for some time, some cards start showing 511 C and 0 RPM in Vertminer, are not hashing, and get very hot. Even after coldreboot, the problem does not go away, and also appears in normal cgminer (which previously never exhibited this issue). It seems it is necessary to turn off and wait some time before it starts working again. I've never had this problem with the normal cgminer. On some of my 7950s, after this issue occured, I never reached back the same hashrate as before (about 50KH/s lower in normal cgminer). Vertminer 0.5.3. I also noticed that when I use I13, TC8193 on my 280X (the I13 is crucial), I will get 1 or 2 HW errors when I start vertminer, but no (or not many) more after that. I am wondering if this could be related. However at I12 I cannot get more than around 270 KH/s, while I get 360 on I13. |
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I don't think it's the same issue that we have.. How much lower is your hash on the other card?
I have to say Sapphire 7950 seem to be the worst cards that money can buy :-/ Just so unreliable!
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Can this be setup on web-hosting rented from somewhere and just pointed at CGMiner via API?
Yes, but you need to open cgminer RPC to the IP of that server. That is actually exactly how I had it set up before on coin.mrbrdo.net (still works but old version). This looks awesome! Any chance of adding per-rig management of pools? I'd like to be able to add/remove/switch pools on a per rig basis, ideally with a way to group rigs together and make changes on a group at a time.
This is already implemented, you can add a pool to all rigs, and switch pools per-rig. I will add more features for this later probably. Does this need to be run on a miner, or can it be installed on any linux machine on the same network as the miners?
It doesn't need to run on miner, it can run in local LAN or even on remote server if you open ports and set api-allow correctly. I've started with 700MB available and it still ran out of space.
can u check if anything went wrong?
At the end it shows that you have no space left.. So it seems you need even more space. Weird, but it seems so. It is a bit weird because I was able to install on BAMT without resizing partition initially. But perhaps there are temporary files it needs while building and you run out of space while installing. Try running rvm cleanup all
bundle install
script/puma start |
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SO it is reply with 0 rig info meaning its not reading the local config file, even though it asks em for a password when I first login (and the username and password works)
Sounds to me like you don't have api-listen and api-allow set properly? If farmcp cannot connect to your cgminer RPC then something like this will happen. The info on how to set it up is in the readme. |
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Not easily, but you can put fan speed to 100% for one card and see which one it is.
It is not related to plugs, I never needed plugs on these cards before.
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A word of warning. I don't know if it's really related, but after mining vertcoin for a few days, 2 of my rigs exhibited a problem. Some of the cards showed 511 C temp and 0 RPM, and then the computer froze. This then happened all the time even after many reboots, after I changed the risers around and changed riser power, it started working again.
2 of my 7950 with this problem, after this, did not hash over 580 KH/s on normal cgminer anymore (previously 620 KH/s steady). One of my 280X now seems to have stability issues and for some reason lower temperature, and auto-fan speed for this card is consistently lower than on all my other cards.
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Hey guys, I have a weird issue with my 7950s.
They worked fine at 620 KH/s, but they hanged twice during last 2 days (it seems like machine kept mining actually, but I could not ssh into it anymore or access the web interface).
After today's hang 2 cards did not work (cgminer showed 511 C temp, 0 fan, no hashrate but no dead/sick either). I tried rebooting a few times but same story (cgminer works, but 2 cards showing that weird details).
I disconnected 2 cards but cgminer wouldn't start then, it seems the driver did not detect any cards or there was some error. After that I disconnected one more, that worked, then I connected back 1, it worked now (wtf?), then I connected all 4 cards and they all work now.
I was mining Vertcoin (using vertminer) while this happened, but I don't think it could have anything to do with it. I was on BAMT 1.3.
However now 2 cards have a hashrate of 775 KH/s, while the other two have same as before (620 KH/s).
Card: Sapphire 7950 with Boost
Mem clock: 1250
Engine clock: 1010
Undervolted @ 1.081 V
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This coin is so awesome. Fully supporting! Screw ASICs.
Finally something that not every idiot can mine and dump.
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He's not wrong, 7950's need high TCC's to perform well. High TCC's need more RAM. 8GB recommended. You can't compare to 280x's because they work on 2 threads with low TCC's.
Possibly, but they run fine now with gpu-threads 2 and intensity 13. TC doesn't seem to affect it as much as intensity, if I dropped intensity to 13 with 16k TC it started to work fine. I tried to drop TC below 6k with 18 intensity and did not work - HW errors. |
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My sapphire 7950 on a computer with 4gb ddr2 cannot go past -i 13 without getting hardware errors, I've tried thread-concurrencies for hours. Currently it's only doing 160kh/s Yes! Same problem here, what the hell is this.. Anything over 13 gives me loads of HW errors on Sapphire 7950 Boost. need 8G ram You are wrong. I have another rig with 4x 280X, 4 GB RAM, and it works fine. This one was just 2x 7950 and 4 GB RAM, and had the issue. The solution is to run these cards with gpu-threads 2 and intensity 13. Getting stable 300 KH/s per card and no errors. |
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Android version available on Amazon App Store!
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My sapphire 7950 on a computer with 4gb ddr2 cannot go past -i 13 without getting hardware errors, I've tried thread-concurrencies for hours. Currently it's only doing 160kh/s Yes! Same problem here, what the hell is this.. Anything over 13 gives me loads of HW errors on Sapphire 7950 Boost. |
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Only whoever makes the opencl script himself, or has a huge botnet, will profit from this coin. Or if your name is Max Keiser.
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And seriously someone buy this rope http://goldrush.l8.lv/ it's the only way you'll be able to reach the very best gold!  can you like piss of with that scam already? stop spamming this crap |
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I submitted the app for Android to Amazon Appstore. Hopefully will be available soon, stay tuned  |
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Instructions for installing rvm are already written in README, maybe you missed it: https://github.com/mrbrdo/farmcp/blob/master/README.mdStart at first line (sudo apt-get install curl)..  Also if you are using SMOS or BAMT you might need to plug your usb into some Linux (e.g. Ubuntu) machine (also Virtualbox works) and use GParted to resize the ext4 partition. Because at least on BAMT 1.3 there is only a few MB of space left and this is barely (if even) enough to put farmcp there. You can check if you need to do this by writing "df -H", find the line that starts with "aufs". Check under "Avail" column, if it says only a few MB then you will probably need to resize. If it is at least 200MB or several GB then you're good. PS: Are you aware that on SMOS you are mining LTC every day for that serbian guy (at 3 AM in the night...)? |
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