CPU Whine being cause by Vista?

Hi guys, I have a vostro 1500 dual booting XP and vista.

It's wierd, I don't hear the CPU whine in XP but I immediately hear it when I boot into vista (whine starts at screenname choice ).

Maybe it's vista and not the actual CPU that is to blame.

Anybody want to help test it out if you got a machine that is dual booting?

 

Could be, I've reinstalled vista from the recover partition, and discovered that Dell Recommended power setting is by far the noisiest - I dunno how, but performance and power save are much quieter than Dell Recommend. So I assume it's some setting in that power mode that affects the CPU whine, not sure which. Since XP has a very different approach to power saving settings, I would guess that would affect the cpu whine, as well. Go figure

 

It's a combination. Vista most likely just handles the CPU power saving functions differently than XP does. So you can hear the whine at different times, and different frequencies depending on when the OS tells the CPU to sleep and wake up.

I just installed Linux, and that has a different kind of CPU whine to Vista too. It's more of a constant tone than and on off sound. And after installing the speed step modules the sound changed again.

So it's still the CPU or Motherboard, just that the OS's are triggering the problem in different ways.