On Jun 14, 2005, at 5:26 PM, Jordan Jensen wrote:
Is it normal to hear the Discs Spinning?
If the room is quiet enough, and you're using a convection-cooled slot-loading iMac (or a Cube), you will hear the disc(s) spinning (mostly bearing noise, actually) in even the newest 7200 IDE hard drives using liquid bearings. Fan noise in most computers covers the noise made as the disc(s) spin, except when the heads read and write to the disc(s). I can't even hear the read/write activity in my G5 iMac's 250 GB Maxtor, it's so quiet -- not even on startup before the fans kick in.
In older and slower-rpm IDE and SCSI discs that use grease-packed ball or roller bearings, the noise level is much higher. Some old full-height SCSI drives scream like carrier jets on takeoff. I've had a couple that were so unbalanced they caused an unattended external hard drive case to walk right off a desktop, thus solving the noise problem.
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