If your system doesn't have more than a single R9 270X, remove those arguments, as it most likely will cause problems. VERY IMPORTANT: The -gpu-platform 1 and -remove-disabled are being used because my miner is hosting a gaming Nvidia card which is not very adequate for cgminer, I use CUDAminer for that one. scrypt -T -gpu-platform 1 -remove-disabled -gpu-fan 100 -l 1 -intensity 18 -thread-concurrency 12992 -shaders 2048 -w 256 -temp-target 85 -no-submit-stale -g 1 Also, the above configuration caused my miner to fluctuate between 430 kH/s and 380 kH/s, never exceeding either. Pumping up the temperature and adding a -g 1 at the end of the miner arguments did definitely fix it. Corsair AF120 for pumping a lot of air out of the case, and Corsair SP120 for pumping fresh air into radiators, disipators, and space limited areas such as the front fans which are right in front of the HDDs, where airflow is greatly reduced.)įor some strange reason, the configuration I was using before suddenly stopped working and dropped my hashrate to 85 kH/s. (You should definitely check them out if your PC case gets too hot to touch, which was an issue for me. Don't go higher than 15% or maybe 20% if you have REALLY GOOD cooling, you will most likely kill the card. This is an MSI R9 280X OC edition, so it's better to play with values yourselves and see what is stable for your specific model and what not. I have overclocked this card a little bit. Apparently bumping up the temperature target seems to have had a positive effect on hashrate output stability and I'm currently below 65✬. Make sure you are using cgwatcher to restart cgminer when you have problems If you want to tweak more out of the card raise gpu-engine and -I. So I will update the settings above to what I am currently using for 72 hours with no crashes. I received a new card and it has the same 14208 thread concurrency as the one with the dead fan. I discovered that one of my fans wasn't working so I believe this was my random crash. (It was 1050 and 19 and lookup gap 0 before). New Edit: I have been running the gpu engine a little higher at 1150 and intensity at 18. Now you can tune the gpu-engine, memclock, -I to find your max kh/s. Search for thread and you will have the correct number mine is 14208. After it loads and runs for a few mins close it and open the new bin file with notepad. bin files in the cgminer directory and run cgminer. To find out the correct number for your card remove -thread-concurrency, -gpu-engine and -gpu-memclock, delete the. 460 Kh/s at 66C running incredibly stable with the correct thread concurrency.Ĭgminer -scrypt -o stratum+tcp://pool:port -u user -p pass -thread-concurrency (user defined see edit) -lookup-gap 2 -gpu-engine 1120 -gpu-memclock 1500 -w 256 -I 18 -g 1 -auto-fan -gpu-fan 30-80 -temp-cutoff 90 -temp-overheat 85 -temp-target 70 -no-submit-staleĮdit: -thread-concurrency is unique to most cards so you have to make sure you are using the correct number or you will have overheating/ crashing issues. I have the Asus R9 270x here are my modified settings to keep the card around 75C but still get 480-490 Kh/s. For more information on this rule, click here and here.
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