On 7 Feb 99, at 11:36, M W Johnston wrote:

> My power supply fan makes a very loud noise.

  Probably a failing bearing.  Replace the fan before it stops and the
system overheats.

> Is there a safe way to fix the fan?
    No
> OR
> Is there a safe way to replace the fan?
    Pretty safe.  You need to unplug the system from the wall, open the
power-supply "box", determine the size and voltage of the fan, shop for a
replacement, and install it.  Note that the "box" carries labels such as
"Danger" and "No user-servicable parts".
> OR
> Must I replace the whole power supply?

  This is the safest and simplest option.  There are a few basic popular
shapes/sizes of power supply -- pick one that matches what you've got, has
enough "drive" power leads for your devices, enough "oomph!" to start up
your system, and preferably one that is UL-certified; should run $30-50.


David G

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