Have you tried moving the speakers away from the computer ? or monitor
?. See if that makes a difference.

I know it's not much...... hope it helps though..

Regards,
 Chris

> > -----Original Message-----
> > From: Arif Ullah
> > Sent: Friday, March 27, 1998 09:07
> >
> > I am starting to doubt the motherboard. I've tried two
> > different sets of speakers with same result. Besides,
> >as I mentioned earlier,  the sound card works fine after
> > that particular noise. But, now I've noticed that a
> > humming noise starts to come out of the speakers after I've
> > used the PC for an hour or so. I've tried the sound card
> > in a different machine and it works fine.
> >
> > I don't know if this is possible but I was wondering, may be a small
> > amounts of electricity is passing to the ISA slots of the motherboard
> > (Shuttle Hot 569) at power on and causing the sound. Is there
> > any way to ground a motherboard?