If you are getting no beeps at all then your problem could be more than the video card because the post process hasn't even gotten to the video card if you haven't heard a post beep yet. This is a list of the beep codes ;
Award BIOS beep code descriptions:
1 short: System boots successfully
2 short: CMOS setting error
1 long, 1 short: Memory or motherboard error
1 long, 2 short: Monitor or graphics card error
1 long, 3 short: Keyboard error
1 long, 9 short: BIOS ROM error
Continuous long beeps: Graphics card not inserted properly
Continuous short beeps: Power error
These are used to detwermine what if any problems the computer is having in the posting process. You will need to check all of the power connectors and make sure...