I just got a new ASUS Zenbook Pro 14 OLED laptop and whenever powered on, there are some very faint electrical sounding noises coming from it. I can only hear them if I put my ear right next to to keyboard or to the back of the laptop. I have another ASUS laptop laying around from a few years ago that makes the same faint noises. I'm assuming this is completely normal but I'm just double checking.