high pitched buzz

[compuhan]

My 3 year old sony occasionally makes exceptionally high pitched buzzing sounds. It's near imperceptible.

Does anyone know what this means, if anything?

Thanks

Quality is better than name brand, even regarding beloved AMD.

 

[zigzag]

Probably a result of a poor power connection. Carefully wiggle (don't electrocute yourself) the powercord when it happens and it will go away.

-zigzag