The graphic card does not fullfill the requirements as it is a DX8 only graphic card (its a rebranded Radeon 8500) I fear.
As such it won’t work for usage with U3 on any reasonable level if at all. (U3 has cut support for stone age hardware thats 7-10 years old or officially abandoned. On osx ppc support was cut from the editor, on the windows side its DX9 / SMx.y support thats set as minimum now I )think