Hi
I just posted this post here:
https://bitcointalk.org/index.php?topic=2145400.0,
All the OC settings i seem to see relate to Windows and not linux and i can't work out the correlation.
I assume you are running Linux as your settings sound more more similar to mine? I am also running Linux
As per the post running:
136watt power
100-150 graphics clock offset (testing between a few different rigs)
1200 Transfer memory offset.
**Edit, should have mentioned i am getting 188MH/s. This setup is stable on two out of three of my rigs. Less so on the third. All running identical hardware.