Time to time buzzing on PSU

[Hank_5]

I have a cooler master V650S 80+ gold (semi modula) PSU. It is plugged into a 800va UPS/AVR. This power supply is brand new and from time to time I get a buzzing sound that will last a couple of minutes and then disappears. I replaced my corsair vs650 for this better one which had the same problem, I even bought a AVR/PSU to be sure. I live in Malaysia so the plugs here are the type G 3 prong plugs. I have run out of ideas on what the problem is....

 

[Jasjar]

It's probably the coil in the PSU vibrating while under load

 

[Hank_5]

It's probably the coil in the PSU vibrating while under load

Any reasons for why this is happening? and does this mean I have a faulty PSU?

 

[Jasjar]

It does not mean you have a faulty PSU. It's just bad luck, it might go away an a few months.

 

[Hank_5]

It does not mean you have a faulty PSU. It's just bad luck, it might go away an a few months.

What is the cause of the buzzing sound? Is it that the PSU is not getting enough power (thou I bought the UPS/AVR)? The noise would disappear after a few minutes, but its just annoying to hear since the CPU is on the same desk as the Monitor.

 

[Jasjar]

This is what`s causing it: http://www.ukgamingcomputers.co.uk/capacitor-squeal-coil-whine-explained-a-63.html Ingnore the part about capacitor squeal