PSU making a ticking sound?

[mrmonkeybiz231]

Hello,

I built this computer about a year ago and suddenly today I heard this very light ticking sound coming from it. So I popped open the case and listened and it seems like it is coming from the PSU. I have no idea what this might mean and if I should be worried. It is not a very consistent sound, it will disappear for a little while and then start ticking here and there.

Any help would be greatly appreciated!!

 

[Maxut Karaman]

dust gathering somewhere, if you cleaned inside the pc clean the inside of the psu too. psu gets more dust in its tiny space.