Ok, this being my first SATA Hard Drive, i'm not sure if it's normal or not (though hoping it is). When i start the computer, i kinda hear a little bit of a whine in 2 separate bursts, first kinda low pitch, then a little higher pitch. When i turn the computer off, just before it actually shuts down, i hear like 2 or 3 moderately loud clicks about a second apart from each other. Is this stuff just caused by the different source of power used/power management? It's a 120GB Western Digital by the way.