high-pitched tone from pc speaker
Matt Heath
matt at thebigchoice.com
Tue Aug 5 17:35:45 PDT 2003
Michael Haro wrote:
>I recently installed FreeBSD 4.8 on a server at work. I cvsup'd and
>installed an updated world and installed a few ports. I also
>rebuilt the kernel to support dual processors. I don't know if this
>always happened, but now the on-board pc speaker (the one that goes
>beep, not from a sound card) emits a high-pitched tone a minute or two
>after boot.
>
>
it could be just be the speaker inducting the electro-magnetic
interference from the motherboard when it enabled the second CPU
if it is one of those surface contact ones I guess you could break it by
forcing something down the little hole
it it is one on wires you can test my hypothesis by making the wires longer
or you could take out / disable the second CPU and see if that cures it
If you have a sensitive sound card you can hear the mb activity as I
have myself, mine used to make noise when moved the mouse
my first computer the Acorn BBc Micro used to suffer the same problem,
you could "hear" scrolling text
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