Coil Whine

[WhiskeySam]

I am chasing what appears to be "Coil Whine" and have pulled GPU to find whine continues.  I have exchanged new Thermaltake TR2 600 PS and whine continues.  I would appreciate any ideas or suggestions.

[autotech]

Coil whine isnt as hard as you think to find. I suggest you start by unplugging each fan in your caes. If it still does it, having them not running will help chase it dowm. Then unplug you cd or dvd drives Make sure you unplug everything safely as in computer off then turn it back on once done.
Now that you have elemanted the fans and drives except the hard drive. Is it still there?
 If so you will have to take a pencil and stick it in the cpu fan when it stopped did the whine decrease?.
You can unplug the hard drive with computer running but turn it off when plugging it back in.
After all this you have two things left the motherboard and psu.
As i am sure you have removed the graphics card and any pci cards and so on before this.
Then you can try a different PSU to rule it out most coil whine does come from PSU. It is more common than the MB.
Now if after all this you determine it is the motherboard you can send a email to gigabyte tech support to fill them in and possiably get a RMA number.

[WhiskeySam]

Thanks for your response "autotech".  I have tried some of this, but not all.  Will run through the remaining items and let you know.  If it does turn out to be "coil whine" on the MOBO I think it can be fixed with a little "dope" on the guilty capacitor, providing it can be located.

[WhiskeySam]

Well, I tried all of the suggestions, including a different PS and same thing.  Haven't been able to isolate the whine to a particular component on the MOBO yet and would appreciate any ideas on that. 

[WhiskeySam]

I'm pretty sure my problem is with the MOBO.  Current BIOS is Rev. F6.  Can anyone tell me if the two later versions (F7 and F8a) are apt to do anything for the coil whine problem?

[Vezina]

No coil noise here on version 1.0 of the board  ,but testing the F8a BIOS could be interesting as it adds new AHCI

Maybe if you disable power management features for the CPU you could get rid of it.
Also my board or the Corsair 600 power supply would whine when the EuP is set in BIOS to on and this happens while the PC is  turned off.

The capacitors should not whine though ,so look for the black boxed things and listen to them.In those things there are coils.Those shocks should be the culprit ,one of them could be loose inside.

[WhiskeySam]

Replaced MOBO...........problem solved!

[Vezina]

What revision did they give you ?! Is it version 12.1 ?!

Glad you got it fixed .