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Title: 7850 Config @ 385~ khash for Scrypt Mining Post by: oxxon on May 22, 2013, 06:42:21 PM Hi guys, I will give my settings for my two 7850 Sapphire Dual-X OC ;D
Here my bat: Code: setx GPU_MAX_ALLOC_PERCENT 100 Temps between 58-62, runing for 2 weeks without crashing. :) Title: Re: 7850 Config @ 385~ khash for Scrypt Mining Post by: snowcrashed on May 22, 2013, 06:50:58 PM I have one of those cards and can only get to about ~340/kh without affecting stability. If I set thread concurrency over 10k it crashes (and I've set MAX_ALLOC_PERCENT).
You have your temp-cutoff and -overheat reversed. -Cutoff is the temperature which CGMiner will automatically disable the card, -Overheat is the temperature at which CGMiner will automatically change GPU/Fan speeds. You want to hit -overheat before -cutoff. Also those values you are setting are very low, the default for those values are 85 for Overheat and 95 for Cutoff. I suppose those values you are setting are fine for a 2 card machine but I'd think about raising them. Title: Re: 7850 Config @ 385~ khash for Scrypt Mining Post by: oxxon on May 22, 2013, 06:57:22 PM After this, i was using this config, to get 375-380 khash using 8192 of thread concurrency:
--thread-concurrency 8192 -I 20 -w 256 --gpu-engine 1100 --gpu-memclock 1250 -g 1 Try it, and thanks for the tips of the temp commands ! Title: Re: 7850 Config @ 385~ khash for Scrypt Mining Post by: snowcrashed on May 22, 2013, 09:32:12 PM I'm using higher OC settings than you and still can only pull ~350 Kh :(
therad-concurrency 8192 -I 20 -w 256 --gpu-engine 1100 --gpu-memclock 1350 Title: Re: 7850 Config @ 385~ khash for Scrypt Mining Post by: Aryetsok on May 22, 2013, 09:41:00 PM I can only go for 260 :(
Need a better gpu... Title: Re: 7850 Config @ 385~ khash for Scrypt Mining Post by: oxxon on May 23, 2013, 03:07:18 AM I'm using higher OC settings than you and still can only pull ~350 Kh :( therad-concurrency 8192 -I 20 -w 256 --gpu-engine 1100 --gpu-memclock 1350 Are an OC version? its strange, if you check this photo, my friends get more khash than me with this settings: https://i.imgur.com/CufDKdo.png Title: Re: 7850 Config @ 385~ khash for Scrypt Mining Post by: coingun on May 23, 2013, 03:08:32 AM If you specify tc you don't need to include shaders. tc sets your shaders properly.
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