firs of all set those things
comand prompt with administrator privilege
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT=100
now for getting 600KH with cgminer and 1100 core and a 7950 on cgminer shortcut
--scrypt --thread-concurrency 24000 --lookup-gap 2 -w 256 -I 20 -g 1
this if you want to use your pc and mining at the same time, but only 525KH
--scrypt --gpu-threads 2 --worksize 256 --thread-concurrency 8192 -I 13
Thanks for the info! this allowed me to increase my hashrate to what it should be.
Awesome information! What voltage is your card set at when doing this?
Atm, it seems to be 1093, according to Trixx.
Hmm... what's odd is I had an issue when I ran my video card stock. I would get low hash rates with SHA-256, and if I enabled the max alloc percent variable as 100, it would give a lot of artifacts and shut down the PC after a few seconds.
I also can't seem to get my core up above around 980 without the same thing happening when on Scrypt.