If you don't see anything on the screen on boot up, and replacing the card gives you something there.
If the mobo speaker beep sequence is 3 short and 1 long on a Phoenix BIOS.
If there is a black melted area anywhere on the IC's on the board.
Matt A+, MCP, MCP+I, MCSE Windows NT 4.0, MCSE Windows 2000 Early Acheiver with Security Emphasis