ASA5505 emits a very high pitched noise

We just got a new 5505 1 week ago. Upon plugging it in it has a very high pitched noise. Similar to the sound you get when your ears are ringing or a cricket but its constant.
This drives us nuts. Any ideas what it can be since there's no fan or moving parts I can't figure it out.

sounds like the switch mode power supply isn't running fully.
does it do it if you just plug the PSU in but don't connect it to the ASA? or is it just under load of the ASA being connected?
either way id put in for a replacement as its not good

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Hi. All.
I have a Aluminum PowerBook G4 1.25Ghz SD. I agree this is a great machine. It has a somewhat out-dated G4 Chip in it, I can do almost everything I need.
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To Apple.
I think this solution should be suggested from you not users.
Why we investigate, search the web for thosand of bucks PowerBook. Please fix this annoying(yes, annoying enough to cause headache) problem in next OS update.
To readers.
Sorry to my poor English(I live in Seoul, Korea)

These are user-to-user discussion boards. Apple employees do not take part in or respond to posts on these boards.

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14-Aug-200707:27 AM
leon_plovdiv wrote:
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psyxologos wrote:
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Hi
> How to disconnect HDD to check what you suggest.
You can only remove it from the HDD bay the HDD bay is placed at the bottom of the unit and you have to remove the screw which secures the HDD bay cover.
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ASA5505 emits a very high pitched noise

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