The GeForce 3 is a DirectX 8 video card.
A simple search on Star Trek Elite Force states a DX9 card is required.
Dungeon Siege is DX8 so you can play it with your GF3. Again, Google for benchmarks. How hard is that to do?
However when the interweb" gives conflicting information on what games the card can, and can't play, I come to the lovely people in this forum to educate myself further. "}