While playing a game i alt+tab'ed then after i resized it, black screen appeared and laptop stopped responding. So i waited till the battery ran out. This happened previously few times. But this time right before shutting down, it made a pop sound. I had headphones plugged it so it wasn't the speakers. It came from near the charging slot (but i stopped charging right after black screen). My laptop is powering up normally. So my question is that should i consider it harmful and show it to a technician or not?