This thread seemed to provide a good workaround:
https://bitcointalksearch.org/topic/low-hash-rate-after-gaming-187160
Disabling/re-enabling the cards after quitting cgminer prevented the crash.
Topic: [solved] CGMiner crashes on second run. (Read 628 times)
Starting with lower intensity (11) stopped things from crashing completely-- looks like explorer is dead and there were some display artifacts, but I'm still here typing this message. But also, hash rate on one card went down to 4kh/s. Increasing its intensity to 13 inside cgminer made things more crashy. Going to reboot and try some other settings, though it's hard to know if anything worked until after I run it for many hours.
Thanks again for the suggestions! Worst comes to worst, I can manage stuff from within cgminer and never quit out as long as when I go down to intensity 8, it doesn't interfere with my work (gamedev, so using 3d accel).
Thanks again for the suggestions! Worst comes to worst, I can manage stuff from within cgminer and never quit out as long as when I go down to intensity 8, it doesn't interfere with my work (gamedev, so using 3d accel).
What AMD driver are you using? I had probs but now I'm on 13.9
Try -i 13
Try -i 13
I'm on 13.9 as well. -i 13 gives me about 330kh/s. Starting up with -i 13 may help and then switching to 17. I'd go higher, but this is also my main desktop and 17+ starts to kill performance. It seems like most of the 280x configs use -i 13, 8192 tc, and -g 2, but I think those have all given me worse performance on my 7950s.. I'll give I 13 a try in a little bit though!
Thanks!
What AMD driver are you using? I had probs but now I'm on 13.9
Try -i 13
Try -i 13
Well you should use the "services" section somebody might help you anyways try the last Cgminer version, just in case.
Will do. That was my first post, so I think I didn't have a choice but to post it here. I saw somewhere else (probably reddit) that it's best to start with lower intensity and manually increase it once cgminer is running, so I'm going to try that when I have time to deal with the reboot. I've only seen one person mention the lower intensity trick, so I'm skeptical that it'll help. As a side note, I realized that I can add/remove/switch pools without exiting cgminer, so I'm just doing that for now.
Thanks!
Well you should use the "services" section somebody might help you anyways try the last Cgminer version, just in case.
First post here.. I'm having an odd issue with cgminer 3.7.2. I've got it set up with what seems to be stable parameters for my 2x Sapphire Dual X 7950's, but if I let it run for several hours and then go to restart it (to switch pools or whatever), it locks up the display drivers bad enough to require a reboot. If I leave it alone, it runs fine for hours.
I'm on Win 7 with a 1100w power supply and Catalyst 13.9. Right now, I've got one card turned way down since I have an airflow problem, but here's the batch file I'm using:
Getting about 620kh/s on gpu 0, which I think is pretty good for I=17. Temps are 68-70C.
Anyone have any ideas what could cause this?
Edit: This thread provides a solution / workaround: https://bitcointalksearch.org/topic/low-hash-rate-after-gaming-187160
I'm on Win 7 with a 1100w power supply and Catalyst 13.9. Right now, I've got one card turned way down since I have an airflow problem, but here's the batch file I'm using:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -w 256,256 -I 17,11 -g 1 --gpu-engine 950-1080,950-1080 --gpu-memclock
1500,1500 --temp-target 69,72 --temp-overheat 75,78 --auto-gpu -o [pool] -O [worker login]
pause
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -w 256,256 -I 17,11 -g 1 --gpu-engine 950-1080,950-1080 --gpu-memclock
1500,1500 --temp-target 69,72 --temp-overheat 75,78 --auto-gpu -o [pool] -O [worker login]
pause
Getting about 620kh/s on gpu 0, which I think is pretty good for I=17. Temps are 68-70C.
Anyone have any ideas what could cause this?
Edit: This thread provides a solution / workaround: https://bitcointalksearch.org/topic/low-hash-rate-after-gaming-187160
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