Strange ticking noise from inside case

[Ice213]

Well the ticking has come back! But to be honest, I'm just gonna leave it as is for now. It really is barely audible, so I'm sure I'll get used to it.

I bet the noise is coming from the psu fan. When cold the slow fan makes a ticking noise but disappears after the psu has warmed up and the fan runs faster..

I think it is the PSU now, but I don't think it disappears when warmed up unfortunately . I've had my PC on since around 5-6ish, and have been gaming for a while in there, and it's still ticking.