13 Jul 2006
Clickity Clack--whine--Clickity Clack
So I’ve just confirmed that my MacBook exudes similar whining problems as the MacBook Pro. The whine’s pitch varies with CPU usage, such as scrolling or dragging windows.
Solution Hack: Turn off the second core using the Processor System Preference panel.
Now I just have the clickity-clack sound of my vintage Apple Extended II keyboard (oh, and only one core).