thanks for help mikeybit, settings you had were really close

seems to be a memory issue with my card, whenever memory is at 1500 it crashes, lowered to 1450/1460 and seems okay there

getting 450kh now with cgminer.exe --scrypt -I 18 -w 256 --thread-concurrency 14208 --gpu-engine 1110 --gpu-memclock 1460