9300/9400 IGP underclock in RivaTuner?

[finite]

Could anyone with a mATX 9300/9400 board tell me if there is an under clock option for the IGP in RivaTuner? I can make quite a power saving on my regular desktop's 8800GTS by running profiles whilst on 2D so I was wondering if the same thing albeit with smaller gains could be achieved with on board graphics too.

Cheers.

 

[finite]

Thanks for the IGP info I save about 9w on 2D idle on my G80 based 8800 GTS 320mb with the clocks (GPU/Mem/Shade) at 260/400/602 compared to the defaults of 513/792/1188.