Brand new PC making a very slight beeping sound

chitugo

Prominent
Jan 10, 2018
5
0
510
Hello i built a pc recenty and it makes a slight and long beeping noise that is barely noticeable.
It's not constant, sometimes it stops and continues again.
This happens when the computer is idle or after turning it on (happens during windows and before windows loads), it usually goes away after using the pc for a long while but then it comes back.

Any idea what could be causing this? is it normal?

Note: It's not a "chirping" sound , it's more of a beeping sound, very slight , can't tell exactly where it is coming from in the case