VR Zone published a Radeon HD 6870 voltage modification guide, you can check it out over here.
Do we still wait for that one software tool which does it all? We all ought to, because the other option naturally voids the warranty of what is likely your latest purchase. However, here at VR-Zone.com, our patience has been replaced by frustration, and ultimately an odd itch.
As with other AMD graphics accelerators of late, there are three critical voltages that are likely to influence the clock speeds on each and every AMD Radeon HD 6870: VDDC, VDDCI, and MVDD.
We're Gotta Mod 'em All...