Everyone, I have just found a very helpful step which removed my whining from the motherboard! Try it:
Its all very weird, but this stopped the (capacitors, I think) sound:
1. Execute: "regedit"
2 .Locate: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Power \ PowerSettings \ 54533251-82be-4824-96c1-47b60b¬740d00 \ 5d76a2ca-e8c0-402f-a133-215849¬2d58ad
3. Change Attributes from 1 to 0.
4. Then, through the control panel - power - in the settings mode select power management processor. There will be an option disabling idle processor and high pitched noise immediately disappears.
Taken from this thread: http://www.tomshardware.co.uk/forum/292 ... oming-area
The trouble with this solution is that it significantly increases the power demand of the CPU at idle. Minimize-power-at-idle features in both Intel & AMD processors get turned off. The CPU's idle temperature goes up, along with the power draw. It may be a good solution if nothing else works and you have no return/exchange option.