Just saw the video, take it back as soon as you can. I bought an HP DV1550 back in the day that started out like that when I purchased it. Fan made a small grinding noise, I didn't really care but it progressively got worse until a year later the fan quit...at which point it was out of warranty and I was kinda thankful it quit because it was getting really loud and annoying lol (though banging on the bottom where the fan was sometimes help). I still use the laptop today as a kitchen internet machine.