Ok, here comes a good one! Now and again, we’ll get a call from a customer telling us about a noise their computer is making. It’s the typical bring your car into the shop and let them diagnose the noise. Much easier said than done. In most computers you have 2-3 moving parts, tops. The hard drive (which is headed towards solid state, no moving parts), a fan for your processor, power supply and/or possibly your video card and a CD player. Well, usually the noises we hear come from a hard drive or failing fan. Have a strange noise coming from your computer? Think it might be a hard drive? Well this web site recorded the sounds of failing hard drives by manufacturer. Neat!
http://datacent.com/hard_drive_sounds.php