Hey guys, I just bought a powercolor 5850 pcs+ on sale at zipzoomfly for $270.

It has a non-reference board and I was wondering what's the best way to overclock it? Can the non-reference boards be overclocked through a bios mod or am I limited to just a hardware mod.

Also, if I perform a hardware over-volt, does that voltage then get applied to both 2D and 3D clocks? I would like to keep the low power consumption in 2D but up the volts for 3D.

So is there any way to increase just the 3D voltage on a non reference 5850?
Thanks