In the old days hard drives used to be a big source of vibration and mechanical noise. The spindle and the read/write heads would often sound like they were grinding away like sandpaper on wood. Things have changed remarkably in just the last few years, but some hard drives can still be sources of annoying vibration and noise. To counter this you can use various software utilities which force the hard drive to sleep or otherwise spin down when not in use. Some companies even offer little black boxes so you can lock the drive away. Noisecontrols NoVibes III (via www.chillblast.com ) takes a different approach and suspends the drive with large rubber belts to isolate it from the frame which can sometimes resonate the sound a drive makes into something much larger.
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