Power supply sounds?

[Abd121]

I got a corsair vs450 PSU to pair with a gigabyte GTX 950, (don't judge me, my budget is extremely limited and no amazon where I live)

after installing everything, they all seems to work perfectly, but the power supply is making very quiet electric sounds, (now sure how to describe them), I'm not sure what they are but is there any danger or such a sound is normal because the capacitors are near the air exhaust?

 

[helpstar]

run a stress test and check if the sound changes

something like this?
https://www.youtube.com/watch?v=hqDZTOPDImU
or this:
https://www.youtube.com/watch?v=dvyZWz9iYkQ

 

[Abd121]

run a stress test and check if the sound changes

something like this?
https://www.youtube.com/watch?v=hqDZTOPDImU
or this:
https://www.youtube.com/watch?v=dvyZWz9iYkQ

The second one but on a lower scale...
is there any danger?

 

[helpstar]

Does the psu fan spin?