Hearing things: computer and mouse noises through speakers

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Hi all,

I am hearing very low level noises from inside my computer coming through both speakers and headphones. The noises seem to be related to the computer "thinking", drawing windows, accessing discs and, most noticeably and reproducibly, mouse movement which causes a zipper like sound.

I have found a few similar references in searching "computer noise", "mouse noise", etc., but none of the situations seems quite exactly like mine. In particular, I would say that this is NOT the sound associated with "computer whine" and not I don't think it seems necessarily related to the video card but I could be wrong.

Any idea?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References forum.cakewalk.com/Hearing-things-computer-and-mouse-noises-through-speakers-and-headphones-m2704766.aspx

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