I have two Sapphire R9 270X OC DUAL-X but soon to be five once I get my frame, I am using some settings off this forum and I am hashing at about 450kh/s but I am not getting any accepts just thousands of rejects.

Here are my settings.

del scrypt*.bin
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o stratum+tcp://stratum.kilovolt.co.uk:3333 -u user -p pass -g 1 -w 256 -I 19 --thread-concurrency 15353 --gpu-fan auto --temp-target 80 --temp-overheat 90 --temp-cutoff 95 --lookup-gap 2 --gpu-engine 1131 --gpu-memclock 1500 --gpu-powertune 20 --no-submit-stale

If anyone could point me in the right direction to get accepts again that would be great.

Thanks,
Jord