u/ChillZilla2077

My pc has been making this “crackling” sounds for the past month and I thought the AIO was going bad with air bubbles trap in it. The noise comes and goes and it was super irritating and I spent hour troubleshooting it. I did look underneath the pc before but didn’t see anything, I guess the styrofoam was stationary. Today I decided to look underneath again I saw this little styrofoam moving around when then intake fans kicked off.

TLDR: Thought the AIO was bad and making crackling noise turned out it was just the intake fans moving this little styrofoam around 😂