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Re: [OT] USB, electronics and ground



On 9/8/06, Paul Gale <groups@xxxxxxx> wrote:
> Not sure - this PC is a real mess at the moment - refusing to boot
most of the
> time, CMOS settings getting screwed etc - when it does boot, it
crashes every
> now and then. My theory at the moment is that the mainboard is screwed
and
> maybe was caused by dodgy USB power etc?

That may be a flat battery on the motherboard.  It's usually a CR2302
button cell.

> Anyone else know what kind of voltage you should expect between
grounds
> like this?

I'd be more interested in how much AC current is being draw.  Most
multimeters
are able to measure this.

Nick.



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