If you get no video, you will never get to bios.
Bad ram or a bad processor will do these things also, as well as a toasted card. Time to start switching out components one at a time, and hopefully you know someone who has a few spares to help.
I would clear cmos first, and try it.
remove all cards but video and try it.
remove IDE and floppy connections and try it.
then pull video card and put any old PCI or agp vidcard in and try it.
A completely different stick of ram and try it.
Different Power supply and try it.
Those fail, it is either a totally borked BIOS, Mobo, or processor.
If you can find another free processor for testing, try that. No joy, then the board and/or bios is bad.