Power Regulator
The BFG GeForce 6800 GT OC also comes with some small heat sinks for the power MOSFETs.
Being just next to the outlet for the cooler, the heat sinks are actively cooled by air exhausted from the GPU cooler.
Let's take a look from the side. As you can see, the cooler outlet blows directly onto the heat sinks for the power MOSFETs.
If you look closely, you can also see the copper fins extruding from the cooler's copper base.
Unlike the 6800 Ultra, the GeForce 6800 GT OC comes with only one Molex power connector, instead of two. This is because the GeForce 6800 GT is a downclocked version of the GeForce 6800 Ultra which requires less power.