ok so i have an old COMPAQ ARMADA 5200DM that my uncle gave me for free as an xmas gift because i love to tinker with old computers. it has a floppy drive a cd drive and a 3 gig HDD ide with windows 98se on it. powers on fine loads the os ok but i hear a clicking noise from time to time. dont hear the noise every second but i do hear it only when im in the os im guessing the hard drive is going bad any idea whats causing this sound