PSU ringing

[Spuderoony]

My Antec 480W TrueBlue (2.5 years old) seems to be emitting a slight 'ringing' sound. Sometimes it's not there, other times barely audible, and other times ever so slightly louder, but I'm sure it never used to happen.

Is my PSU about to blow?

 

[LoadsaMoney]

Have you answered it yet.

Id RMA it just to be safe if its just started.

 

[weringo]

I have a PSU inside a 6 yr old PC thats been ringing for a few years, yet its still going strong. So yours may not blow, but RMA it if you can be bothered