Does anyone have setting for Sapphire Dual X 7970. I use sgminer but getting ONLY hw errors.

Here is my current config:

setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
sgminer  -o stratum+tcp://hiro.suprnova.cc:3313 -u username -p password -k darkcoin --thread-concurrency 8192 -I 13 -g 2 -w 256 --lookup-gap 2 --no-submit-stale --auto-fan --temp-target 72 --temp-cutoff 95

clock is 1040/1730

This same clock I use for my scrypt.