Do you know the model of your system's motherboard? Also, is there a specific number of beeps, or does it beep continuously until you do something?
It beeps continuos until I press F1 at first window. It asks to pess F1 or F10 . Then window comes up to press F1 or F2 to continue. Only beeps at first window. Checked cpu fan and it runs fine. Installed latest driver for the video card and video is fine.