CPU cooler drip noise

[arbiter1170]

So I've had a prebuilt HP Envy Phoenix 2013 series for quite some time now, however recently there appears to be some sort of noise coming from the computer.
When gaming, or when the temps start to get up to 57c (the highest I've ever seen it go on load) I occasionally hear a dripping noise. It sounds like water dripping from a sink. I've checked and there is zero leaks.

 

I had this issue almost a year ago, ended up RMAing the part in question. had it replaced, and now the pump I've had for a little less than a year is doing the same thing, just not as frequently.

 

I see no difference in temps.. everything is cooling as usual. Should I be worried? What should I do?

[Techstorm970]

6 minutes ago, arbiter1170 said:

 I occasionally hear a dripping noise. It sounds like water dripping from a sink. I've checked and there is zero leaks.

 

I see no difference in temps.. everything is cooling as usual.

[flibberdipper]

All I can think of is air bubbles forming over time.

[arbiter1170]

1 hour ago, tmcclelland455 said:

All I can think of is air bubbles forming over time.

Should I just leave it then?

[flibberdipper]

1 hour ago, arbiter1170 said:

Should I just leave it then?

As long as there isn't any leakage anywhere and temps aren't going through the roof, it should be fine.