So for the past little while my iMac has been making this terrible terrible noise that sounded like a high pitched buzzing. I first noticed it while running Windows under bootcamp but it started to appear while running OSX too. I cannot even describe how annoying this noise is, it just drills into your brain.
I was digging around forever looking for solutions; checking fans speeds, disabling hard drives, wondering about coil wine.
Have hours of searching I have found the solution!... at least while running windows.
I found this post (http://www.tomshardware.co.uk/forum/292915-30-high-pitched-noise-coming-area) and followed the following instructions:
I was digging around forever looking for solutions; checking fans speeds, disabling hard drives, wondering about coil wine.
Have hours of searching I have found the solution!... at least while running windows.
I found this post (http://www.tomshardware.co.uk/forum/292915-30-high-pitched-noise-coming-area) and followed the following instructions:
- Execute: "regedit" 2 .Locate: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Power \ PowerSettings \ 54533251-82be-4824-96c1-47b60b¬740d00 \ 5d76a2ca-e8c0-402f-a133-215849¬2d58ad
- Change Attributes from 1 to 0.
- Then, through the control panel - power - in the settings mode select power management processor. There will be an option disabling idle processor.