Corsair AX1200i noise

[Yousefmtw]

Greetings!

My corsair ax1200i started to make this noise lately (I think it was there in the past, but it wasn't noticeable as much as it is now).
Even if the PC is turned off the noise is still there so I doubt it has to do with the coils etc....

https://www.youtube.com/watch?v=N2JMEmjm6SM

Any suggestions besides RMA?

 

[Lutfij]

It'd have helped if you posted a video/audio clip of the system when also powered off. Other than that, it's coil whine. You will need to RMA it since it could result into something disastrous. Often the sound of coil whine is not as harsh as yours is.

In fact, there is nothing that can be suggested apart from an RMA since opening the PSU is a hazardous task which even certified technicians try not to get involved in besides you're yet under warranty, correct?