It seems a high pitched noise in a Dell is fairly common. I have read the forum and tried some of the suggestions but none of them worked.
I have a high pitched noise (it sounds like when I use a Dremel to cut a nail or using a dog whistle) coming from the bottom right side of laptop. It is random, sometimes when using it alot and other times I'm not doing anything. It can be a quick noise or a long drawn out whistle.
I ran BIOS and everything checked out, and the noise didn't happen when testing. The noise starts back up when Windows starts up.
I tried the suggestion that deals with the USB power managment, I tried disabling the Speedstep, disabling the BEEP file, it's not affected when speakers are mute or when microphones are turned off, and I don't think this comupter has bluetooth so that option is out.
Does anyone else have any other suggestions? Anything would be appreciated.