What is making noise in my laptop?

In my laptop, corner lower left, arise quietly (for a long time, even if no window is open) noises.

You can describe it poorly, but it is sometimes halting and a high note.

Fans are off, SSD installed.

What could that be?

Spulenfiepen?

What's this? It's definitely a whimper.

https://www.google.com/...e&ie=UTF-8

I'll turn on V sync again. Let's see.

A mouse may be in there

In the laptop?

V sync does not help either.

Mice are peeping. But probably there's no in there. Maybe there's something vibrating and causing the noise

Spulenfiepen.