Hello everybody
I have 4 Powercolor 280x turboduo.
I cant get the cards over 291 kh/s each. Something very strange about my cards i that i have to set gpu thread 1 instead of the usual gpu thread 2 i use when mining other scrypt coins.
I have GA-F2A85X-UP4, Amd A4-5300 and 4 gb ram.
Any ideas what i should try? I have tried to play around with the gpu core speed. I still dont get over 291 kh/s
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Using -g 2 with -I 13 should always be possible on a 280x, I think. Your engine clock is possibly way too high for it. Did you try changing the thread concurrency + or - 1 (8191 or 8193)? One other thing that has occasionally been useful for me is to try different Catalyst versions.
You didn't say what kind of error or failure you were getting when attempting -g 2.
edit: oh yeah, try worksize 128 too.