Need help please...

I'm moving my miner over to linux. All is good except one odd thing...
When I run the new sgminer 4.2.2, it runs with my voltage at 0.875, engine at 300mhz & memory at 300mhz
Ive got a sgminer.conf in the same directory as sgminer with the correct settings: V=1.110 Engine= 1160 & memory=1498
even when I manually change these settings in sgminer they dont change.
I'm getting 100 hardware errors per second & I'm worried i'm gonna destroy the card like this....
I'm stumped, does anyone have any ideas/tips to troubleshoot this ?
Ubuntu 14.04
AMD stable drivers 14.4
AMD SDK 2.9
sgminer 4.2.2
ASUS 270x
Thanks