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i have a problem with my gigabyte 7950 rig. clocked at 1150/1400 i get about 610 kH/s (LTC) -> thats ok! the problem is the generated heat of the first one in the main pcie slot. while at all other 7950's the fans spins with about 2200 rpm to hold a target of 75°C, the first one runs with 3600 rpm (100%) and can't get below 77°C. same happens, when i use a card from another slot.
any ideas?
Are you saying whatever card is in the first slot gets hotter? I had problems with the cards running hot, so I stuck a small fan to blow right on the card (at the back of the computer, blowing air 90 degrees from the MB). The air it blows ends up in the front part of the case where it leaves. The fan is about 12" in size and blows more air than typical case fans, but is not much noisier than such, just something from the local department store. It dropped the temperature of one card that could barely cool itself (fan runs almost on max) by 8C and now I don't hear this jet engine sound  . Also means the tower has no side panel... but oh well. |
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You're doomed to switch antivirus or use a smarter one that allows exceptions. It's detecting the interface dll that takes your keystrokes as a keylogger and disabling the interface. Alternatively you can always run in the boring text only interface with -T.
Thanks for the reply. I tried: cgminer.exe -P -o stratum.btcguild.com:3333 -u me -p 123 --auto-fan -T
but it doesn't work any better, it just freezes after running for a little bit (recall the first example had "-D -T -P"). I got: [2013-04-14 23:14:34] Started cgminer 2.11.4
[2013-04-14 23:14:35] Probing for an alive pool
[2013-04-14 23:14:36] Disabling extra threads due to dynamic mode.
[2013-04-14 23:14:36] Tune dynamic intensity with --gpu-dyninterval
[2013-04-14 23:14:37] Accepted 356d5ffd Diff 4/1 GPU 1
[2013-04-14 23:14:37] Thread 1 being disabled
[2013-04-14 23:14:51] Accepted 4f94c6be Diff 3/1 GPU 0
[2013-04-14 23:15:04] Accepted 1c606bfb Diff 9/1 GPU 0 If I kill it using the X (it's ^C does nothing), the next startup doesn't get past "Tune dynamic...". So it does not appear to be the keystrokes to me. I though it was network, but I believe it sometimes connects to it when it starts up. It seems to be when it goes to get a new work unit or something like that (am I correct to assume that when it starts up it finishes previous units it got before?). Any more suggestions? |
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I'm having problems with cgminer and AVG antivirus free 2013. Note that AVG antivirus free does not have a firewall. The most annoying thing is it was working fine Thursday and suddenly stopped working. I can't think of anything I changed on that day, or before the last reboot. I'm using the command: cgminer.exe -P -o stratum.btcguild.com:3333 -u me -p 123 --auto-fan -D -T -P
1. If I start cgminer with AVG activated, most of the time cgminer will just display a blank screen (sometimes it runs for a bit and stops). If I then disable AVG, cgminer will start and run normally. 2. Different scenario. AVG is disabled, I start cgminer, it runs normally. If I enable AVG, cgminer runs for a bit and then freezes. Again, if I disable AVG, it continues. Just for kicks I've disabled Windows firewall but it didn't do anything. I've tried disabling individual parts of AVG but nothing happens, I have to disable the whole thing. The debug text before the freeze isn't particularly interesting, just something like [2013-04-14 22:44:54] 45.5 C F: 51%(3184RPM) E: 765MHz M: 1125Mhz V: 1.118V A: 90% P: 0%
[2013-04-14 22:44:54] 45.5 C F: 51%(2242RPM) E: 725MHz M: 1000Mhz V: 1.088V A: 97% P: 0%
[2013-04-14 22:44:54] [thread 3: 146800640 hashes, 144622.3 khash/sec]
[2013-04-14 22:44:54] [thread 0: 279969792 hashes, 278560.3 khash/sec]
[2013-04-14 22:44:54] [thread 2: 144703488 hashes, 143120.4 khash/sec]
Any ideas what to try or am I doomed to switch antivirus? |
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I'm currently using Diablo. The f argument worked great, thanks ssateneth. Any reason why you'd want to do that? You bought the most expensive card, I say let it bleed.
Summer is quickly approaching, and I won't be mining if it means turning the AC up too far, as I'll spend more money cooling the room than I'll make. You're not making any sense. All heat produced by the computer (and video card) has to be removed by the A/C, regardless of how little or much it's making. Since the computer produces a certain amount regardless of how hard the card is worked, you're effectively making it less efficient to mine by doing this (although it will cost less obviously). It would make more sense to mine when it's cool, like about midnight to 8am, since the A/C will have to work less hard. The best solution would be to stick the computer in an un-A/C space, and fan it like crazy, since fans take way less energy. The next best solution is to vent the computer outside; any air vented outside will be replaced by outside air (somewhere in the house) and since air from outside is very likely cooler than the computer's heat, it still makes sense. |
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Get your cgminer only from ckolivas. You can check it out on the official cgminer bitcointalk thread https://bitcointalk.org/index.php?topic=28402.0. There are antiviruses that purge the cgminer.exe file, make sure that you exclude cgminer from your antivirus scans, or restore it after your antivirus quarantined/purged it. It doesn't remove it. It simply stops it from connecting; it starts, and seems to hang. I disable the AVG anti-virus, and it starts and does everything normally. If I enable the anti-virus while cvg is running, and it continues for a bit then stops. I've added the whole directory as something to exclude from scans but that doesn't do it. |
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It is actually against Paypal's regulations, as they don't allow you to use Paypal to buy currencies.
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cgminer is working better here than OpenCL/Guiminer. Plus you can configure it to slow down if the machine is about to overheat (as opposed to just crashing and possibly killing something).
And I've found cgminer reconnects quite well. The only problem is AVG doesn't like it, seems to block it somehow. The minute I disable it, cgminer connects and works nicely.
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My mini laptop uses an AMD E-350 1.6 GHz processor, APU (CPU + GPU) integrated is a ATI Radeon 6310. The whole rig uses maybe 20 watts, and does 11 Mhash/s, give or take. That's almost 2 watts for every Mhash.
My desktop has two ATI Radeon 5850's that do 600 Mhash, and it consumes 600 watts (nice heating here, it's about 0C outside), that's about 1:1 for watts:mhash.
So clearly in this case the regular cards win for efficiency. Maybe there's an APU that does better, I don't know.
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Hello... Just waiting to get out of the newbie prison... I looked at Bitcoin about a year and a half ago when it was peaking, mined a few then, then stopped when it dropped to $7... Then sold them this time around, so kinda happy |
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From the cgminer documentation: Q: Is it faster to mine on windows or linux?
A: It makes no difference. It comes down to choice of operating system for
their various features. Linux offers much better long term stability and
remote monitoring and security, while windows offers you overclocking tools
that can achieve much more than cgminer can do on linux.
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-f X controls the framerate. From what I understand the miner will attempt to free enough brains on the video card to maintain the framerate at X, so -F 0 essentially means forget about it, just drive it as hard as you can.
I've read that if the GPU overheats, some of the math it does is just plain wrong, so what it thinks is a success is actually totally wrong, and it will not be accepted.
cgminer has as a default that 75C as being the target temperature, 80C being a throttle temperature, and 85C being a "shutdown", so I'd try to keep it under 80C so things work good...
What I've read so far on -w is that results vary, try it and see...
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You don't actually LOSE money until you cash out. So if you bough for more than it's worth, it might be better to just hang onto it. This isn't the first ride Bitcoin takes you know... I mined my first 4 bitcoins some 1.5 years ago, when it ramped up to 150 or so then tanked down to 7. I stopped mining or looking at it at that point, then a week ago I decided to take a look... what luck, it was at $140, so I sold two of them. Then for the heck of it, I set one at $250... wow it sold too. So I am kinda happy right now  But my point stands - you don't lose until you sell, so keep 'em around if you're going to lose crazy cash on it. |
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I installed cgminer a few days ago, and it worked fine. I rebooted and suddenly it would startup and then hang. It seems completely disabling AVG Free makes it work fine again; I can toggle it on and off and cgminer starts and stops at the same time (with a small delay, I think AVG is blocking some of the networking). Nothing else seems to work - I tried disabling just the antivirus or rootkit, or just the Windows Firewall, but nothing else worked. I tried adding an exception for the cgminer directory but didn't work.
I don't have AVG Firewall; this does not come with AVG Free. Any ideas how to fix it?
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