Onset of whining is often a sign that the spindle motor bearings are
starting to wear out. They're sealed with "lifetime lubrication" at the
factory. By this they mean that life ends when the lubrication wears out.
Over time, the bearing friction will increase to the point where the
drive runs very hot, or where the motor torque just can't maintain the
proper speed.
That said, I've run noisy drives for a very long time, so they can
apparently run for months or years, happily if noisily. Still, you may
wish to increase the frequency with which you make backups, just in case. :)
--Cheers,
Tom
I noticed it about a month after I got the computer (in March). I've
used other PowerBook 500s before and they didn't make that noise as
far as I know.
On 8/19/05, Bruce Johnson <[EMAIL PROTECTED]> wrote:
=20
On Aug 19, 2005, at 7:36 AM, John Perkins Jr. wrote:
=20
The hard drive in my 520 makes an annoying whining noise after the
computer's been on for a while. Could my hard drive be failing or is
this normal?
--
Prof. Thomas H. Lee
Center for Integrated Systems, CIS-205
420 Via Palou Mall
Stanford University
Stanford, CA 94305-4070
http://www-smirc.stanford.edu
650-725-3709 voice, -3383 fax
--
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