High pitch noise from PSU when comp off.

[ScarySquirrel]

As title really, powersupply is a HIper TYpe-R 580w PSU. I woke up at about 4am this morning because I could hear a high pitch noise, worked out it was my PSU, the PSU was still switch to on but my system was turned off.

When my computer is on you cant hear it as the fans kind of drown it out I think, although when I went close I still couldnt hear it,

Is this something I should be partiularly worried about, it may be that when I turn my omp off again its gone, but is there anything I can do a precautionary matter?

Thanks

 

[ScarySquirrel]

Yeah If i turn it off at the mains it stops.

I dont want to have to do that every night, and now im worried it will explode if i dont while Im at work, what a pain!

 

[ScarySquirrel]

OCuK? Its about 6 months old, no receipt! unlikely