So is this a LC or a LC 475? The power flip trick only works with the Quadra 605 , LC 475 , Power Mac 6100 , If it's an LC just an LC and you don't have any v RAM installed, you're not going to get any video whatsoever . That with the LC three the beauty of the LC Iii is that it will work because it has VRAM and ram all soldered onto the motherboard . And yes I'm sure your LC three needs a recap just like everything else .