Anyone got a 7990 working?

Im running dual 7990 rigs and getting nothing but HW errors?

This is my bat. Anyone know whats causing the issue? Have tried various tc and intensities, and tried 13.12, 13.9. 14.4 and 14.6 drivers.

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
C:\sgminer_x11x13mod_03_06_2014\sgminer.exe --kernel x13mod -o stratum+tcp://am01.eu.trademybit.com:5550 -u sb0y1.2 -p 1234 -w 256 --thread-concurrency 11200 -g 2 -I 13 --gpu-memclock 1500 --gpu-engine 1040 --gpu-fan 100