|Hello again Mick.|
I am currently using MSI Afterburner to overclock. It's now running at 975/1150 on default Voltage, stressed for 20 minutes and no problems. I dare not push it any further lol.
The AMD PowerPlay feature means my card clocks are at 300/300 when not in use so it's only O/C'd when gaming etc. This PowerPlay feature makes BIOS moddig somewhat tricky so I think I'll take your advice and stick with software for now. The only problem I have is that the settings arn't correctly applied after a restart but I'm sure I'll find a way around it.
Once again, thank you for your time.
AMD Phenom II x6 BE 1090T @ 3.8GHz 1.38V
4x2GB G Skill Ripjaw 1600MHz
HIS Radeon HD6850 IceQX Turbo 1GB @ 975/1150