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Sun, 17 Mar 2002 13:27:53 -0800 |
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On 17 Mar 2002, at 15:14, Ian wrote:
> Immediately prior to a reboot, there's a little 'Fssst!' noise,
> very brief and only audible because I have the PC alongside me on
> the desktop with the side off the case.
I think this is an important clue. It suggests:
1. A momentary burst of electrical noise on the wires to the case
speaker, or
2. A momentary burst of electrical noise on one of the connections
to the sound card, or
3. A momentary burst of electrical noise on one of the connections
to the modem, or
4. Some kind of arcing or capacitor discharge, with moderately high
voltage. And about 90% of the stuff inside the *case* that ever
deals with >12v is inside the power supply, that's where I'd look
first.
David Gillett
PCBUILD maintains hundreds of useful files for download
visit our download web page at:
http://freepctech.com/downloads.shtml
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