From: "David Gillett"
> Hard drives and fans generally run at a constant speed, and so their noise
> tends to be constant too. This "rev up" sounds like what some machines I've
> worked with do in order to determine what CD/DVD (or, occasionally, floppy)
> is in a drive.
"Better fans" have a temperature sensor that runs the speed up and down to
help keep the noise under control. If a fan is making "that much?" noise, it should
be easy to spot.
Rick Glazier
Visit our website regularly for FAQs,
articles, how-to's, tech tips and much more
http://freepctech.com