View Single Post
Old 8th March 2019, 22:29   #55241  |  Link
tp4tissue
Registered User
 
tp4tissue's Avatar
 
Join Date: May 2013
Posts: 710
Quote:
Originally Posted by Asmodian View Post
This is called coil whine, it is a weird and annoying hardware defect that manifests with very specific loads.
If it's following the Mouse, it's not Coil whine.

It's CPU whine or GPU whine.

If you have a delidded chip, you can poke the core with a thin wooden stick while it's running (with whine), and hear the pitch of the whine change.

That's how they diagonse capacitor /coil whine in psus.



There's nothing one can do about it. piezoelectric effect

The noise can also dump into the analog audio out if you're using them.

For PC audio it's always best to use Optical. Or some sort of hdmi/usb setup with galvanic isolation. (which really just uses opto-couplers, which is essentially optical)
__________________
Ghetto | 2500k 5Ghz

Last edited by tp4tissue; 8th March 2019 at 22:37.
tp4tissue is offline   Reply With Quote