I get 266KH/s on each card now with zero HW errors and about 7% rejects. My cgminer script looks like this:
Quote
#!/bin/sh
export GPU_USE_SYNC_OBJECTS=1
export GPU_MAX_ALLOC_PERCENT=100
~/bin/cgminer/cgminer -o ltc.kattare.com:9332 -u xxx -p x --scrypt -I 20 --thread-concurrency 5600 -g 1 -w 128
export GPU_USE_SYNC_OBJECTS=1
export GPU_MAX_ALLOC_PERCENT=100
~/bin/cgminer/cgminer -o ltc.kattare.com:9332 -u xxx -p x --scrypt -I 20 --thread-concurrency 5600 -g 1 -w 128
GPUs are clocked at 800MHz with 1000MHz memory. I tried a bunch of different memory clock speeds, but this seems to do the best with an 800MHz core speed. I could probably get more speed if I OC'd the cores.
