How To OC An AMD GPU And Which Program To Test It?

[meths]

I have never overclocked a graphics card.

I'm going to OC my 6950 Toxic using Trixx but was wondering:

-Should I set PowerTune to +20% in CCC to stop it throttling under load?

-What is the max safe temperature? Does 85ish under full load and 90 max sound about right?

-Voltage is currently 1.175 but what is the max safe voltage?

-Should I set the voltage in the bios or use Trixx?

-Which program is best for testing stability?

 

[meths]

Thanks for the replies. I'll download Afterburner and Unigine for a look tonight.

Should I set PowerTune to +20% and just leave the voltage at 1.175?

 

[meths]

Just to clarify for people that are wondering what I'm talking about with PowerTune, it's been replaced with a slider for Power Control Settings in the Catalyst Control Centre.

I'll bench my card with it at 0 then bump it up to 50% and see if there's any difference before I start pushing the card.

 

[meths]

Oh! I don't use that piece of software on my HD5770.

I wouldn't bother using it and just use MSI AB for everything to do with the power output of the card.

So do you just install the driver and not CCC then?

In the review of my card at Hardocp they seem to be running Trixx alongside the CCC.