If you click here , you will see that the requirements are for a 16 MB DirectX 8.0 compatible video card with OpenGL support.
click here for a good review of the sis730 chipset. Click through to the nd of the review for the comments about gaming. I would guess that the answer would be yes, mohaa would run - but at a very low resolution, and veeeeery slowly. As a comparison, the sis730 achieved a frame rate of about 30fps at 640x480. A modern graphics card would run Quake about 4x faster.
Hopefully, someone who has actually tried this will post here soon.