XPS 13 - Odd noises

[EunSoo]

Hello! I have a Dell XPS 13 (9350 - i7 6560u, 3200*1800 screen, 512gb Hynix NVMe SSD, 16GB RAM) and I have been getting quite annoyed with a crackling noise especially when I watch a video whether it's on Youtube, Twitch or even Floatplane. Here is a video: The constant hum is the fans so don't worry about that but the inconsistent crackle noise is what my concern is.

https://streamable.com/xj7tl

 

And then whenever I use the trackpad, touchscreen, built-in keyboard, my mouse or my external keyboard, I get another odd noise. Here is a video: It may sound like background noise but it actually the noise coming from my laptop when I am using the trackpad.

https://streamable.com/c5ct4

 

Is there anything I should be concerned about or are those noises normal for a laptop like mine? If it is abnormal, is it worth going through a warranty process? I have a three year extended warranty from the retailer but it simply extends Dell's own warranty. Thanks!

Edited May 10, 2018 by Sombra