Gigabyte R9 270 cgminer aleks (or vertminer) settings
Running stable at 200kh/s, almost no HW errors
cgminer.exe --scrypt -v 1 -w 256,512 -I 13,17 -g 1 --lookup-gap 2 --gpu-powertune -20,-20 --temp-target 65,55 --temp-overheat 75,65 --temp-cutoff 80 --gpu-memclock 1500,1500 --gpu-engine 1040,1000 --thread-concurrency 8192,12992 --device 1 --remove-disabled --api-listen
pause
The settings for the R9 270 are the second ones, and the first ones if there's not a second setting.
If it works for you please consider throwing some VTC: VsQPq56R2G7MLgQdHyV7N4iEfth8rvz8Kb