unlocking voltage control on afterburner

[beardyweirdy]

Hi all,
I fancy overclocking my 6990 but when I enable voltage control on afterburner, it does not allow it, even after a reboot, any ideas?

 

[lomez]

Your HD6990 needs to support voltage adjustments. As far as I know XFX, MSI, ASUS, and Sapphire are the only ones (no one really buys the other brands except for powercolor).

Have you tried enabling it in the .cfg? Go to Afterburner's installation location, open the .cfg, and you'll see a few obviously-named settings. Change from 0 to 1.

info lifted from http://www.tomshardware.co.uk/forum/305764-15-voltage-control

 

[beardyweirdy]

Thanks, I will have a look, its a Sapphire btw